ref: f279c5eba035d018a8805a65a8a245b8b8d2ea2e
dir: /gtk.c/
/*
* gtk.c: GTK front end for my puzzle collection.
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1 /* for strcasestr */
#endif
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <time.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#ifdef NO_TGMATH_H
# include <math.h>
#else
# include <tgmath.h>
#endif
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gdk/gdkx.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include "puzzles.h"
#include "gtk.h"
#if GTK_CHECK_VERSION(2,0,0)
# define USE_PANGO
# ifdef PANGO_VERSION_CHECK
# if PANGO_VERSION_CHECK(1,8,0)
# define HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
# endif
# endif
#endif
#if !GTK_CHECK_VERSION(2,4,0)
# define OLD_FILESEL
#endif
#if GTK_CHECK_VERSION(2,8,0)
# define USE_CAIRO
# if GTK_CHECK_VERSION(3,0,0) || defined(GDK_DISABLE_DEPRECATED)
# define USE_CAIRO_WITHOUT_PIXMAP
# endif
#endif
#if defined USE_CAIRO && GTK_CHECK_VERSION(2,10,0)
/* We can only use printing if we are using Cairo for drawing and we
have a GTK version >= 2.10 (when GtkPrintOperation was added). */
# define USE_PRINTING
# if GTK_CHECK_VERSION(2,18,0)
/* We can embed the page setup. Before 2.18, we needed to have a
separate page setup. */
# define USE_EMBED_PAGE_SETUP
# endif
#endif
#if GTK_CHECK_VERSION(3,0,0)
/* The old names are still more concise! */
#define gtk_hbox_new(x,y) gtk_box_new(GTK_ORIENTATION_HORIZONTAL,y)
#define gtk_vbox_new(x,y) gtk_box_new(GTK_ORIENTATION_VERTICAL,y)
/* GTK 3 has retired stock button labels */
#define LABEL_OK "_OK"
#define LABEL_CANCEL "_Cancel"
#define LABEL_NO "_No"
#define LABEL_YES "_Yes"
#define LABEL_SAVE "_Save"
#define LABEL_OPEN "_Open"
#define gtk_button_new_with_our_label gtk_button_new_with_mnemonic
#else
#define LABEL_OK GTK_STOCK_OK
#define LABEL_CANCEL GTK_STOCK_CANCEL
#define LABEL_NO GTK_STOCK_NO
#define LABEL_YES GTK_STOCK_YES
#define LABEL_SAVE GTK_STOCK_SAVE
#define LABEL_OPEN GTK_STOCK_OPEN
#define gtk_button_new_with_our_label gtk_button_new_from_stock
#endif
/* #undef USE_CAIRO */
/* #define NO_THICK_LINE */
#ifdef DEBUGGING
static FILE *debug_fp = NULL;
static void dputs(const char *buf)
{
if (!debug_fp) {
debug_fp = fopen("debug.log", "w");
}
fputs(buf, stderr);
if (debug_fp) {
fputs(buf, debug_fp);
fflush(debug_fp);
}
}
void debug_printf(const char *fmt, ...)
{
char buf[4096];
va_list ap;
va_start(ap, fmt);
vsprintf(buf, fmt, ap);
dputs(buf);
va_end(ap);
}
#endif
/* ----------------------------------------------------------------------
* Error reporting functions used elsewhere.
*/
void fatal(const char *fmt, ...)
{
va_list ap;
fprintf(stderr, "fatal error: ");
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(1);
}
/* ----------------------------------------------------------------------
* GTK front end to puzzles.
*/
static void changed_preset(frontend *fe);
static void load_prefs(frontend *fe);
static char *save_prefs(frontend *fe);
struct font {
#ifdef USE_PANGO
PangoFontDescription *desc;
#else
GdkFont *font;
#endif
int type;
int size;
};
/*
* An internal API for functions which need to be different for
* printing and drawing.
*/
struct internal_drawing_api {
void (*set_colour)(frontend *fe, int colour);
#ifdef USE_CAIRO
void (*fill)(frontend *fe);
void (*fill_preserve)(frontend *fe);
#endif
};
/*
* This structure holds all the data relevant to a single window.
* In principle this would allow us to open multiple independent
* puzzle windows, although I can't currently see any real point in
* doing so. I'm just coding cleanly because there's no
* particularly good reason not to.
*/
struct frontend {
bool headless; /* true if we're running without GTK, for --screenshot */
GtkWidget *window;
GtkAccelGroup *dummy_accelgroup;
GtkWidget *area;
GtkWidget *statusbar;
GtkWidget *menubar;
#if GTK_CHECK_VERSION(3,20,0)
GtkCssProvider *css_provider;
#endif
guint statusctx;
int w, h;
midend *me;
#ifdef USE_CAIRO
const float *colours;
cairo_t *cr;
cairo_surface_t *image;
#ifndef USE_CAIRO_WITHOUT_PIXMAP
GdkPixmap *pixmap;
#endif
GdkColor background; /* for painting outside puzzle area */
#else
GdkPixmap *pixmap;
GdkGC *gc;
GdkColor *colours;
GdkColormap *colmap;
int backgroundindex; /* which of colours[] is background */
#endif
int ncolours;
int bbox_l, bbox_r, bbox_u, bbox_d;
bool timer_active;
int timer_id;
struct timeval last_time;
struct font *fonts;
int nfonts, fontsize;
config_item *cfg;
int cfg_which;
bool cfgret;
GtkWidget *cfgbox;
void *paste_data;
int paste_data_len;
int pw, ph, ps; /* pixmap size (w, h are area size, s is GDK scale) */
int ox, oy; /* offset of pixmap in drawing area */
#ifdef OLD_FILESEL
char *filesel_name;
#endif
GSList *preset_radio;
bool preset_threaded;
GtkWidget *preset_custom;
GtkWidget *copy_menu_item;
#if !GTK_CHECK_VERSION(3,0,0)
bool drawing_area_shrink_pending;
bool menubar_is_local;
#endif
#if GTK_CHECK_VERSION(3,0,0)
/*
* This is used to get round an annoying lack of GTK notification
* message. If we request a window resize with
* gtk_window_resize(), we normally get back a "configure" event
* on the window and on its drawing area, and we respond to the
* latter by doing an appropriate resize of the puzzle. If the
* window is maximised, so that gtk_window_resize() _doesn't_
* change its size, then that configure event never shows up. But
* if we requested the resize in response to a change of puzzle
* parameters (say, the user selected a differently-sized preset
* from the menu), then we would still like to be _notified_ that
* the window size was staying the same, so that we can respond by
* choosing an appropriate tile size for the new puzzle preset in
* the existing window size.
*
* Fortunately, in GTK 3, we may not get a "configure" event on
* the drawing area in this situation, but we still get a
* "size_allocate" event on the whole window (which, in other
* situations when we _do_ get a "configure" on the area, turns up
* second). So we treat _that_ event as indicating that if the
* "configure" event hasn't already shown up then it's not going
* to arrive.
*
* This flag is where we bookkeep this system. On
* gtk_window_resize we set this flag to true; the area's
* configure handler sets it back to false; then if that doesn't
* happen, the window's size_allocate handler does a fallback
* puzzle resize when it sees this flag still set to true.
*/
bool awaiting_resize_ack;
#endif
#ifdef USE_CAIRO
int printcount, printw, printh;
float printscale;
bool printsolns, printcolour;
int hatch;
float hatchthick, hatchspace;
drawing *print_dr;
document *doc;
#endif
#ifdef USE_PRINTING
GtkPrintOperation *printop;
GtkPrintContext *printcontext;
GtkSpinButton *printcount_spin_button, *printw_spin_button,
*printh_spin_button, *printscale_spin_button;
GtkCheckButton *soln_check_button, *colour_check_button;
#endif
const struct internal_drawing_api *dr_api;
};
struct blitter {
#ifdef USE_CAIRO
cairo_surface_t *image;
#else
GdkPixmap *pixmap;
#endif
int w, h, x, y;
};
void get_random_seed(void **randseed, int *randseedsize)
{
struct timeval *tvp = snew(struct timeval);
gettimeofday(tvp, NULL);
*randseed = (void *)tvp;
*randseedsize = sizeof(struct timeval);
}
void frontend_default_colour(frontend *fe, float *output)
{
#if !GTK_CHECK_VERSION(3,0,0)
if (!fe->headless) {
/*
* If we have a widget and it has a style that specifies a
* default background colour, use that as the background for
* the puzzle drawing area.
*/
GdkColor col = gtk_widget_get_style(fe->window)->bg[GTK_STATE_NORMAL];
output[0] = col.red / 65535.0;
output[1] = col.green / 65535.0;
output[2] = col.blue / 65535.0;
}
#endif
/*
* GTK 3 has decided that there's no such thing as a 'default
* background colour' any more, because widget styles might set
* the background to something more complicated like a background
* image. We don't want to get into overlaying our entire puzzle
* on an arbitrary background image, so we'll just make up a
* reasonable shade of grey.
*
* This is also what we do on GTK 2 in headless mode, where we
* don't have a widget style to query.
*/
output[0] = output[1] = output[2] = 0.9F;
}
static void gtk_status_bar(void *handle, const char *text)
{
frontend *fe = (frontend *)handle;
if (fe->headless)
return;
assert(fe->statusbar);
gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, text);
}
/* ----------------------------------------------------------------------
* Cairo drawing functions.
*/
#ifdef USE_CAIRO
static void setup_drawing(frontend *fe)
{
fe->cr = cairo_create(fe->image);
cairo_scale(fe->cr, fe->ps, fe->ps);
cairo_set_antialias(fe->cr, CAIRO_ANTIALIAS_GRAY);
cairo_set_line_width(fe->cr, 1.0);
cairo_set_line_cap(fe->cr, CAIRO_LINE_CAP_SQUARE);
cairo_set_line_join(fe->cr, CAIRO_LINE_JOIN_ROUND);
}
static void teardown_drawing(frontend *fe)
{
cairo_destroy(fe->cr);
fe->cr = NULL;
#ifndef USE_CAIRO_WITHOUT_PIXMAP
if (!fe->headless) {
cairo_t *cr = gdk_cairo_create(fe->pixmap);
cairo_set_source_surface(cr, fe->image, 0, 0);
cairo_rectangle(cr,
fe->bbox_l - 1,
fe->bbox_u - 1,
fe->bbox_r - fe->bbox_l + 2,
fe->bbox_d - fe->bbox_u + 2);
cairo_fill(cr);
cairo_destroy(cr);
}
#endif
}
static void snaffle_colours(frontend *fe)
{
fe->colours = midend_colours(fe->me, &fe->ncolours);
}
static void draw_set_colour(frontend *fe, int colour)
{
cairo_set_source_rgb(fe->cr,
fe->colours[3*colour + 0],
fe->colours[3*colour + 1],
fe->colours[3*colour + 2]);
}
static void print_set_colour(frontend *fe, int colour)
{
float r, g, b;
print_get_colour(fe->print_dr, colour, fe->printcolour,
&(fe->hatch), &r, &g, &b);
if (fe->hatch < 0)
cairo_set_source_rgb(fe->cr, r, g, b);
}
static void set_window_background(frontend *fe, int colour)
{
#if GTK_CHECK_VERSION(3,0,0)
/* In case the user's chosen theme is dark, we should not override
* the background colour for the whole window as this makes the
* menu and status bars unreadable. This might be visible through
* the gtk-application-prefer-dark-theme flag or else we have to
* work it out from the name. */
gboolean dark_theme = false;
char *theme_name = NULL;
g_object_get(gtk_settings_get_default(),
"gtk-application-prefer-dark-theme", &dark_theme,
"gtk-theme-name", &theme_name,
NULL);
if (theme_name && strcasestr(theme_name, "-dark"))
dark_theme = true;
g_free(theme_name);
#if GTK_CHECK_VERSION(3,20,0)
char css_buf[512];
sprintf(css_buf, ".background { "
"background-color: #%02x%02x%02x; }",
(unsigned)(fe->colours[3*colour + 0] * 255),
(unsigned)(fe->colours[3*colour + 1] * 255),
(unsigned)(fe->colours[3*colour + 2] * 255));
if (!fe->css_provider)
fe->css_provider = gtk_css_provider_new();
if (!gtk_css_provider_load_from_data(
GTK_CSS_PROVIDER(fe->css_provider), css_buf, -1, NULL))
assert(0 && "Couldn't load CSS");
if (!dark_theme) {
gtk_style_context_add_provider(
gtk_widget_get_style_context(fe->window),
GTK_STYLE_PROVIDER(fe->css_provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
gtk_style_context_add_provider(
gtk_widget_get_style_context(fe->area),
GTK_STYLE_PROVIDER(fe->css_provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
#else // still at least GTK 3.0 but less than 3.20
GdkRGBA rgba;
rgba.red = fe->colours[3*colour + 0];
rgba.green = fe->colours[3*colour + 1];
rgba.blue = fe->colours[3*colour + 2];
rgba.alpha = 1.0;
gdk_window_set_background_rgba(gtk_widget_get_window(fe->area), &rgba);
if (!dark_theme)
gdk_window_set_background_rgba(gtk_widget_get_window(fe->window),
&rgba);
#endif // GTK_CHECK_VERSION(3,20,0)
#else // GTK 2 version comes next
GdkColormap *colmap;
colmap = gdk_colormap_get_system();
fe->background.red = fe->colours[3*colour + 0] * 65535;
fe->background.green = fe->colours[3*colour + 1] * 65535;
fe->background.blue = fe->colours[3*colour + 2] * 65535;
if (!gdk_colormap_alloc_color(colmap, &fe->background, false, false)) {
g_error("couldn't allocate background (#%02x%02x%02x)\n",
fe->background.red >> 8, fe->background.green >> 8,
fe->background.blue >> 8);
}
gdk_window_set_background(gtk_widget_get_window(fe->area),
&fe->background);
gdk_window_set_background(gtk_widget_get_window(fe->window),
&fe->background);
#endif
}
static PangoLayout *make_pango_layout(frontend *fe)
{
return (pango_cairo_create_layout(fe->cr));
}
static void draw_pango_layout(frontend *fe, PangoLayout *layout,
int x, int y)
{
cairo_move_to(fe->cr, x, y);
pango_cairo_show_layout(fe->cr, layout);
}
static void save_screenshot_png(frontend *fe, const char *screenshot_file)
{
cairo_surface_write_to_png(fe->image, screenshot_file);
}
static void do_hatch(frontend *fe)
{
double i, x, y, width, height, maxdim;
/* Get the dimensions of the region to be hatched. */
cairo_path_extents(fe->cr, &x, &y, &width, &height);
maxdim = max(width, height);
cairo_save(fe->cr);
/* Set the line color and width. */
cairo_set_source_rgb(fe->cr, 0, 0, 0);
cairo_set_line_width(fe->cr, fe->hatchthick);
/* Clip to the region. */
cairo_clip(fe->cr);
/* Hatch the bounding area of the fill region. */
if (fe->hatch == HATCH_VERT || fe->hatch == HATCH_PLUS) {
for (i = 0.0; i <= width; i += fe->hatchspace) {
cairo_move_to(fe->cr, i, 0);
cairo_rel_line_to(fe->cr, 0, height);
}
}
if (fe->hatch == HATCH_HORIZ || fe->hatch == HATCH_PLUS) {
for (i = 0.0; i <= height; i += fe->hatchspace) {
cairo_move_to(fe->cr, 0, i);
cairo_rel_line_to(fe->cr, width, 0);
}
}
if (fe->hatch == HATCH_SLASH || fe->hatch == HATCH_X) {
for (i = -height; i <= width; i += fe->hatchspace * ROOT2) {
cairo_move_to(fe->cr, i, 0);
cairo_rel_line_to(fe->cr, maxdim, maxdim);
}
}
if (fe->hatch == HATCH_BACKSLASH || fe->hatch == HATCH_X) {
for (i = 0.0; i <= width + height; i += fe->hatchspace * ROOT2) {
cairo_move_to(fe->cr, i, 0);
cairo_rel_line_to(fe->cr, -maxdim, maxdim);
}
}
cairo_stroke(fe->cr);
cairo_restore(fe->cr);
}
static void do_draw_fill(frontend *fe)
{
cairo_fill(fe->cr);
}
static void do_draw_fill_preserve(frontend *fe)
{
cairo_fill_preserve(fe->cr);
}
static void do_print_fill(frontend *fe)
{
if (fe->hatch < 0)
cairo_fill(fe->cr);
else
do_hatch(fe);
}
static void do_print_fill_preserve(frontend *fe)
{
if (fe->hatch < 0) {
cairo_fill_preserve(fe->cr);
} else {
cairo_path_t *oldpath;
oldpath = cairo_copy_path(fe->cr);
do_hatch(fe);
cairo_append_path(fe->cr, oldpath);
}
}
static void do_clip(frontend *fe, int x, int y, int w, int h)
{
cairo_new_path(fe->cr);
cairo_rectangle(fe->cr, x, y, w, h);
cairo_clip(fe->cr);
}
static void do_unclip(frontend *fe)
{
cairo_reset_clip(fe->cr);
}
static void do_draw_rect(frontend *fe, int x, int y, int w, int h)
{
cairo_save(fe->cr);
cairo_new_path(fe->cr);
cairo_set_antialias(fe->cr, CAIRO_ANTIALIAS_NONE);
cairo_rectangle(fe->cr, x, y, w, h);
fe->dr_api->fill(fe);
cairo_restore(fe->cr);
}
static void do_draw_line(frontend *fe, int x1, int y1, int x2, int y2)
{
cairo_new_path(fe->cr);
cairo_move_to(fe->cr, x1 + 0.5, y1 + 0.5);
cairo_line_to(fe->cr, x2 + 0.5, y2 + 0.5);
cairo_stroke(fe->cr);
}
static void do_draw_thick_line(frontend *fe, float thickness,
float x1, float y1, float x2, float y2)
{
cairo_save(fe->cr);
cairo_set_line_width(fe->cr, thickness);
cairo_new_path(fe->cr);
cairo_move_to(fe->cr, x1, y1);
cairo_line_to(fe->cr, x2, y2);
cairo_stroke(fe->cr);
cairo_restore(fe->cr);
}
static void do_draw_poly(frontend *fe, const int *coords, int npoints,
int fillcolour, int outlinecolour)
{
int i;
cairo_new_path(fe->cr);
for (i = 0; i < npoints; i++)
cairo_line_to(fe->cr, coords[i*2] + 0.5, coords[i*2 + 1] + 0.5);
cairo_close_path(fe->cr);
if (fillcolour >= 0) {
fe->dr_api->set_colour(fe, fillcolour);
fe->dr_api->fill_preserve(fe);
}
assert(outlinecolour >= 0);
fe->dr_api->set_colour(fe, outlinecolour);
cairo_stroke(fe->cr);
}
static void do_draw_circle(frontend *fe, int cx, int cy, int radius,
int fillcolour, int outlinecolour)
{
cairo_new_path(fe->cr);
cairo_arc(fe->cr, cx + 0.5, cy + 0.5, radius, 0, 2*PI);
cairo_close_path(fe->cr); /* Just in case... */
if (fillcolour >= 0) {
fe->dr_api->set_colour(fe, fillcolour);
fe->dr_api->fill_preserve(fe);
}
assert(outlinecolour >= 0);
fe->dr_api->set_colour(fe, outlinecolour);
cairo_stroke(fe->cr);
}
static void setup_blitter(blitter *bl, int w, int h)
{
bl->image = cairo_image_surface_create(CAIRO_FORMAT_RGB24, w, h);
}
static void teardown_blitter(blitter *bl)
{
cairo_surface_destroy(bl->image);
}
static void do_blitter_save(frontend *fe, blitter *bl, int x, int y)
{
cairo_t *cr = cairo_create(bl->image);
cairo_set_source_surface(cr, fe->image, -x, -y);
cairo_paint(cr);
cairo_destroy(cr);
}
static void do_blitter_load(frontend *fe, blitter *bl, int x, int y)
{
cairo_set_source_surface(fe->cr, bl->image, x, y);
cairo_paint(fe->cr);
}
static void clear_backing_store(frontend *fe)
{
fe->image = NULL;
}
static void wipe_and_maybe_destroy_cairo(frontend *fe, cairo_t *cr,
bool destroy)
{
cairo_set_source_rgb(cr, fe->colours[0], fe->colours[1], fe->colours[2]);
cairo_paint(cr);
if (destroy)
cairo_destroy(cr);
}
static void setup_backing_store(frontend *fe)
{
#ifndef USE_CAIRO_WITHOUT_PIXMAP
if (!fe->headless) {
fe->pixmap = gdk_pixmap_new(gtk_widget_get_window(fe->area),
fe->pw*fe->ps, fe->ph*fe->ps, -1);
} else {
fe->pixmap = NULL;
}
#endif
fe->image = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
fe->pw*fe->ps, fe->ph*fe->ps);
wipe_and_maybe_destroy_cairo(fe, cairo_create(fe->image), true);
#ifndef USE_CAIRO_WITHOUT_PIXMAP
if (!fe->headless)
wipe_and_maybe_destroy_cairo(fe, gdk_cairo_create(fe->pixmap), true);
#endif
if (!fe->headless) {
#if GTK_CHECK_VERSION(3,22,0)
GdkWindow *gdkwin;
cairo_region_t *region;
GdkDrawingContext *drawctx;
cairo_t *cr;
gdkwin = gtk_widget_get_window(fe->area);
region = gdk_window_get_clip_region(gdkwin);
drawctx = gdk_window_begin_draw_frame(gdkwin, region);
cr = gdk_drawing_context_get_cairo_context(drawctx);
wipe_and_maybe_destroy_cairo(fe, cr, false);
gdk_window_end_draw_frame(gdkwin, drawctx);
cairo_region_destroy(region);
#else
wipe_and_maybe_destroy_cairo(
fe, gdk_cairo_create(gtk_widget_get_window(fe->area)), true);
#endif
}
}
static bool backing_store_ok(frontend *fe)
{
return fe->image != NULL;
}
static void teardown_backing_store(frontend *fe)
{
cairo_surface_destroy(fe->image);
#ifndef USE_CAIRO_WITHOUT_PIXMAP
gdk_pixmap_unref(fe->pixmap);
#endif
fe->image = NULL;
}
#endif
/* ----------------------------------------------------------------------
* GDK drawing functions.
*/
#ifndef USE_CAIRO
static void setup_drawing(frontend *fe)
{
fe->gc = gdk_gc_new(fe->area->window);
}
static void teardown_drawing(frontend *fe)
{
gdk_gc_unref(fe->gc);
fe->gc = NULL;
}
static void snaffle_colours(frontend *fe)
{
int i, ncolours;
float *colours;
gboolean *success;
fe->colmap = gdk_colormap_get_system();
colours = midend_colours(fe->me, &ncolours);
fe->ncolours = ncolours;
fe->colours = snewn(ncolours, GdkColor);
for (i = 0; i < ncolours; i++) {
fe->colours[i].red = colours[i*3] * 0xFFFF;
fe->colours[i].green = colours[i*3+1] * 0xFFFF;
fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
}
success = snewn(ncolours, gboolean);
gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
false, false, success);
for (i = 0; i < ncolours; i++) {
if (!success[i]) {
g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
i, fe->colours[i].red >> 8,
fe->colours[i].green >> 8,
fe->colours[i].blue >> 8);
}
}
}
static void set_window_background(frontend *fe, int colour)
{
fe->backgroundindex = colour;
gdk_window_set_background(fe->area->window, &fe->colours[colour]);
gdk_window_set_background(fe->window->window, &fe->colours[colour]);
}
static void draw_set_colour(frontend *fe, int colour)
{
gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
}
#ifdef USE_PANGO
static PangoLayout *make_pango_layout(frontend *fe)
{
return (pango_layout_new(gtk_widget_get_pango_context(fe->area)));
}
static void draw_pango_layout(frontend *fe, PangoLayout *layout,
int x, int y)
{
gdk_draw_layout(fe->pixmap, fe->gc, x, y, layout);
}
#endif
static void save_screenshot_png(frontend *fe, const char *screenshot_file)
{
GdkPixbuf *pb;
GError *gerror = NULL;
midend_redraw(fe->me);
pb = gdk_pixbuf_get_from_drawable(NULL, fe->pixmap,
NULL, 0, 0, 0, 0, -1, -1);
gdk_pixbuf_save(pb, screenshot_file, "png", &gerror, NULL);
}
static void do_clip(frontend *fe, int x, int y, int w, int h)
{
GdkRectangle rect;
rect.x = x;
rect.y = y;
rect.width = w;
rect.height = h;
gdk_gc_set_clip_rectangle(fe->gc, &rect);
}
static void do_unclip(frontend *fe)
{
GdkRectangle rect;
rect.x = 0;
rect.y = 0;
rect.width = fe->w;
rect.height = fe->h;
gdk_gc_set_clip_rectangle(fe->gc, &rect);
}
static void do_draw_rect(frontend *fe, int x, int y, int w, int h)
{
gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
}
static void do_draw_line(frontend *fe, int x1, int y1, int x2, int y2)
{
gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
}
static void do_draw_thick_line(frontend *fe, float thickness,
float x1, float y1, float x2, float y2)
{
GdkGCValues save;
gdk_gc_get_values(fe->gc, &save);
gdk_gc_set_line_attributes(fe->gc,
thickness,
GDK_LINE_SOLID,
GDK_CAP_BUTT,
GDK_JOIN_BEVEL);
gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
gdk_gc_set_line_attributes(fe->gc,
save.line_width,
save.line_style,
save.cap_style,
save.join_style);
}
static void do_draw_poly(frontend *fe, const int *coords, int npoints,
int fillcolour, int outlinecolour)
{
GdkPoint *points = snewn(npoints, GdkPoint);
int i;
for (i = 0; i < npoints; i++) {
points[i].x = coords[i*2];
points[i].y = coords[i*2+1];
}
if (fillcolour >= 0) {
fe->dr_api->set_colour(fe, fillcolour);
gdk_draw_polygon(fe->pixmap, fe->gc, true, points, npoints);
}
assert(outlinecolour >= 0);
fe->dr_api->set_colour(fe, outlinecolour);
/*
* In principle we ought to be able to use gdk_draw_polygon for
* the outline as well. In fact, it turns out to interact badly
* with a clipping region, for no terribly obvious reason, so I
* draw the outline as a sequence of lines instead.
*/
for (i = 0; i < npoints; i++)
gdk_draw_line(fe->pixmap, fe->gc,
points[i].x, points[i].y,
points[(i+1)%npoints].x, points[(i+1)%npoints].y);
sfree(points);
}
static void do_draw_circle(frontend *fe, int cx, int cy, int radius,
int fillcolour, int outlinecolour)
{
if (fillcolour >= 0) {
fe->dr_api->set_colour(fe, fillcolour);
gdk_draw_arc(fe->pixmap, fe->gc, true,
cx - radius, cy - radius,
2 * radius, 2 * radius, 0, 360 * 64);
}
assert(outlinecolour >= 0);
fe->dr_api->set_colour(fe, outlinecolour);
gdk_draw_arc(fe->pixmap, fe->gc, false,
cx - radius, cy - radius,
2 * radius, 2 * radius, 0, 360 * 64);
}
static void setup_blitter(blitter *bl, int w, int h)
{
/*
* We can't create the pixmap right now, because fe->window
* might not yet exist. So we just cache w and h and create it
* during the firs call to blitter_save.
*/
bl->pixmap = NULL;
}
static void teardown_blitter(blitter *bl)
{
if (bl->pixmap)
gdk_pixmap_unref(bl->pixmap);
}
static void do_blitter_save(frontend *fe, blitter *bl, int x, int y)
{
if (!bl->pixmap)
bl->pixmap = gdk_pixmap_new(fe->area->window, bl->w, bl->h, -1);
gdk_draw_pixmap(bl->pixmap,
fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
fe->pixmap,
x, y, 0, 0, bl->w, bl->h);
}
static void do_blitter_load(frontend *fe, blitter *bl, int x, int y)
{
assert(bl->pixmap);
gdk_draw_pixmap(fe->pixmap,
fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
bl->pixmap,
0, 0, x, y, bl->w, bl->h);
}
static void clear_backing_store(frontend *fe)
{
fe->pixmap = NULL;
}
static void setup_backing_store(frontend *fe)
{
GdkGC *gc;
if (fe->headless) {
fprintf(stderr, "headless mode does not work with GDK drawing\n");
exit(1);
}
fe->pixmap = gdk_pixmap_new(fe->area->window, fe->pw, fe->ph, -1);
gc = gdk_gc_new(fe->area->window);
gdk_gc_set_foreground(gc, &fe->colours[0]);
gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->pw, fe->ph);
gdk_draw_rectangle(fe->area->window, gc, 1, 0, 0, fe->w, fe->h);
gdk_gc_unref(gc);
}
static int backing_store_ok(frontend *fe)
{
return (!!fe->pixmap);
}
static void teardown_backing_store(frontend *fe)
{
gdk_pixmap_unref(fe->pixmap);
fe->pixmap = NULL;
}
#endif
#ifndef USE_CAIRO_WITHOUT_PIXMAP
static void repaint_rectangle(frontend *fe, GtkWidget *widget,
int x, int y, int w, int h)
{
GdkGC *gc = gdk_gc_new(gtk_widget_get_window(widget));
#ifdef USE_CAIRO
gdk_gc_set_foreground(gc, &fe->background);
#else
gdk_gc_set_foreground(gc, &fe->colours[fe->backgroundindex]);
#endif
if (x < fe->ox) {
gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
true, x, y, fe->ox - x, h);
w -= (fe->ox - x);
x = fe->ox;
}
if (y < fe->oy) {
gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
true, x, y, w, fe->oy - y);
h -= (fe->oy - y);
y = fe->oy;
}
if (w > fe->pw) {
gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
true, x + fe->pw, y, w - fe->pw, h);
w = fe->pw;
}
if (h > fe->ph) {
gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
true, x, y + fe->ph, w, h - fe->ph);
h = fe->ph;
}
gdk_draw_pixmap(gtk_widget_get_window(widget), gc, fe->pixmap,
x - fe->ox, y - fe->oy, x, y, w, h);
gdk_gc_unref(gc);
}
#endif
/* ----------------------------------------------------------------------
* Pango font functions.
*/
#ifdef USE_PANGO
static void add_font(frontend *fe, int index, int fonttype, int fontsize)
{
/*
* Use Pango to find the closest match to the requested
* font.
*/
PangoFontDescription *fd;
fd = pango_font_description_new();
/* `Monospace' and `Sans' are meta-families guaranteed to exist */
pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
"Monospace" : "Sans");
pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
/*
* I found some online Pango documentation which
* described a function called
* pango_font_description_set_absolute_size(), which is
* _exactly_ what I want here. Unfortunately, none of
* my local Pango installations have it (presumably
* they're too old), so I'm going to have to hack round
* it by figuring out the point size myself. This
* limits me to X and probably also breaks in later
* Pango installations, so ideally I should add another
* CHECK_VERSION type ifdef and use set_absolute_size
* where available. All very annoying.
*/
#ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
#else
{
Display *d = GDK_DISPLAY();
int s = DefaultScreen(d);
double resolution =
(PANGO_SCALE * 72.27 / 25.4) *
((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
pango_font_description_set_size(fd, resolution * fontsize);
}
#endif
fe->fonts[index].desc = fd;
}
static void align_and_draw_text(frontend *fe,
int index, int align, int x, int y,
const char *text)
{
PangoLayout *layout;
PangoRectangle rect;
layout = make_pango_layout(fe);
/*
* Create a layout.
*/
pango_layout_set_font_description(layout, fe->fonts[index].desc);
pango_layout_set_text(layout, text, strlen(text));
pango_layout_get_pixel_extents(layout, NULL, &rect);
if (align & ALIGN_VCENTRE)
rect.y -= rect.height / 2;
else
rect.y -= rect.height;
if (align & ALIGN_HCENTRE)
rect.x -= rect.width / 2;
else if (align & ALIGN_HRIGHT)
rect.x -= rect.width;
draw_pango_layout(fe, layout, rect.x + x, rect.y + y);
g_object_unref(layout);
}
#endif
/* ----------------------------------------------------------------------
* Old-fashioned font functions.
*/
#ifndef USE_PANGO
static void add_font(int index, int fonttype, int fontsize)
{
/*
* In GTK 1.2, I don't know of any plausible way to
* pick a suitable font, so I'm just going to be
* tedious.
*/
fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
"fixed" : "variable");
}
static void align_and_draw_text(int index, int align, int x, int y,
const char *text)
{
int lb, rb, wid, asc, desc;
/*
* Measure vertical string extents with respect to the same
* string always...
*/
gdk_string_extents(fe->fonts[i].font,
"ABCDEFGHIJKLMNOPQRSTUVWXYZ",
&lb, &rb, &wid, &asc, &desc);
if (align & ALIGN_VCENTRE)
y += asc - (asc+desc)/2;
else
y += asc;
/*
* ... but horizontal extents with respect to the provided
* string. This means that multiple pieces of text centred
* on the same y-coordinate don't have different baselines.
*/
gdk_string_extents(fe->fonts[i].font, text,
&lb, &rb, &wid, &asc, &desc);
if (align & ALIGN_HCENTRE)
x -= wid / 2;
else if (align & ALIGN_HRIGHT)
x -= wid;
/*
* Actually draw the text.
*/
gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
}
#endif
/* ----------------------------------------------------------------------
* The exported drawing functions.
*/
static void gtk_start_draw(void *handle)
{
frontend *fe = (frontend *)handle;
fe->bbox_l = fe->w;
fe->bbox_r = 0;
fe->bbox_u = fe->h;
fe->bbox_d = 0;
setup_drawing(fe);
}
static void gtk_clip(void *handle, int x, int y, int w, int h)
{
frontend *fe = (frontend *)handle;
do_clip(fe, x, y, w, h);
}
static void gtk_unclip(void *handle)
{
frontend *fe = (frontend *)handle;
do_unclip(fe);
}
static void gtk_draw_text(void *handle, int x, int y, int fonttype,
int fontsize, int align, int colour,
const char *text)
{
frontend *fe = (frontend *)handle;
int i;
/*
* Find or create the font.
*/
for (i = 0; i < fe->nfonts; i++)
if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
break;
if (i == fe->nfonts) {
if (fe->fontsize <= fe->nfonts) {
fe->fontsize = fe->nfonts + 10;
fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
}
fe->nfonts++;
fe->fonts[i].type = fonttype;
fe->fonts[i].size = fontsize;
add_font(fe, i, fonttype, fontsize);
}
/*
* Do the job.
*/
fe->dr_api->set_colour(fe, colour);
align_and_draw_text(fe, i, align, x, y, text);
}
static void gtk_draw_rect(void *handle, int x, int y, int w, int h, int colour)
{
frontend *fe = (frontend *)handle;
fe->dr_api->set_colour(fe, colour);
do_draw_rect(fe, x, y, w, h);
}
static void gtk_draw_line(void *handle, int x1, int y1, int x2, int y2,
int colour)
{
frontend *fe = (frontend *)handle;
fe->dr_api->set_colour(fe, colour);
do_draw_line(fe, x1, y1, x2, y2);
}
static void gtk_draw_thick_line(void *handle, float thickness,
float x1, float y1, float x2, float y2,
int colour)
{
frontend *fe = (frontend *)handle;
fe->dr_api->set_colour(fe, colour);
do_draw_thick_line(fe, thickness, x1, y1, x2, y2);
}
static void gtk_draw_poly(void *handle, const int *coords, int npoints,
int fillcolour, int outlinecolour)
{
frontend *fe = (frontend *)handle;
do_draw_poly(fe, coords, npoints, fillcolour, outlinecolour);
}
static void gtk_draw_circle(void *handle, int cx, int cy, int radius,
int fillcolour, int outlinecolour)
{
frontend *fe = (frontend *)handle;
do_draw_circle(fe, cx, cy, radius, fillcolour, outlinecolour);
}
static blitter *gtk_blitter_new(void *handle, int w, int h)
{
blitter *bl = snew(blitter);
setup_blitter(bl, w, h);
bl->w = w;
bl->h = h;
return bl;
}
static void gtk_blitter_free(void *handle, blitter *bl)
{
teardown_blitter(bl);
sfree(bl);
}
static void gtk_blitter_save(void *handle, blitter *bl, int x, int y)
{
frontend *fe = (frontend *)handle;
do_blitter_save(fe, bl, x, y);
bl->x = x;
bl->y = y;
}
static void gtk_blitter_load(void *handle, blitter *bl, int x, int y)
{
frontend *fe = (frontend *)handle;
if (x == BLITTER_FROMSAVED && y == BLITTER_FROMSAVED) {
x = bl->x;
y = bl->y;
}
do_blitter_load(fe, bl, x, y);
}
static void gtk_draw_update(void *handle, int x, int y, int w, int h)
{
frontend *fe = (frontend *)handle;
if (fe->bbox_l > x ) fe->bbox_l = x ;
if (fe->bbox_r < x+w) fe->bbox_r = x+w;
if (fe->bbox_u > y ) fe->bbox_u = y ;
if (fe->bbox_d < y+h) fe->bbox_d = y+h;
}
static void gtk_end_draw(void *handle)
{
frontend *fe = (frontend *)handle;
teardown_drawing(fe);
if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d && !fe->headless) {
#ifdef USE_CAIRO_WITHOUT_PIXMAP
gtk_widget_queue_draw_area(fe->area,
fe->bbox_l - 1 + fe->ox,
fe->bbox_u - 1 + fe->oy,
fe->bbox_r - fe->bbox_l + 2,
fe->bbox_d - fe->bbox_u + 2);
#else
repaint_rectangle(fe, fe->area,
fe->bbox_l - 1 + fe->ox,
fe->bbox_u - 1 + fe->oy,
fe->bbox_r - fe->bbox_l + 2,
fe->bbox_d - fe->bbox_u + 2);
#endif
}
}
#ifdef USE_PANGO
static char *gtk_text_fallback(void *handle, const char *const *strings,
int nstrings)
{
/*
* We assume Pango can cope with any UTF-8 likely to be emitted
* by a puzzle.
*/
return dupstr(strings[0]);
}
#endif
#ifdef USE_PRINTING
static void gtk_begin_doc(void *handle, int pages)
{
frontend *fe = (frontend *)handle;
gtk_print_operation_set_n_pages(fe->printop, pages);
}
static void gtk_begin_page(void *handle, int number)
{
}
static void gtk_begin_puzzle(void *handle, float xm, float xc,
float ym, float yc, int pw, int ph, float wmm)
{
frontend *fe = (frontend *)handle;
double ppw, pph, pox, poy, dpmmx, dpmmy;
double scale;
ppw = gtk_print_context_get_width(fe->printcontext);
pph = gtk_print_context_get_height(fe->printcontext);
dpmmx = gtk_print_context_get_dpi_x(fe->printcontext) / 25.4;
dpmmy = gtk_print_context_get_dpi_y(fe->printcontext) / 25.4;
/*
* Compute the puzzle's position in pixels on the logical page.
*/
pox = xm * ppw + xc * dpmmx;
poy = ym * pph + yc * dpmmy;
/*
* And determine the scale.
*
* I need a scale such that the maximum puzzle-coordinate
* extent of the rectangle (pw * scale) is equal to the pixel
* equivalent of the puzzle's millimetre width (wmm * dpmmx).
*/
scale = wmm * dpmmx / pw;
/*
* Now instruct Cairo to transform points based on our calculated
* values (order here *is* important).
*/
cairo_save(fe->cr);
cairo_translate(fe->cr, pox, poy);
cairo_scale(fe->cr, scale, scale);
fe->hatchthick = 0.2 * pw / wmm;
fe->hatchspace = 1.0 * pw / wmm;
}
static void gtk_end_puzzle(void *handle)
{
frontend *fe = (frontend *)handle;
cairo_restore(fe->cr);
}
static void gtk_end_page(void *handle, int number)
{
}
static void gtk_end_doc(void *handle)
{
}
static void gtk_line_width(void *handle, float width)
{
frontend *fe = (frontend *)handle;
cairo_set_line_width(fe->cr, width);
}
static void gtk_line_dotted(void *handle, bool dotted)
{
frontend *fe = (frontend *)handle;
if (dotted) {
const double dash = 35.0;
cairo_set_dash(fe->cr, &dash, 1, 0);
} else {
cairo_set_dash(fe->cr, NULL, 0, 0);
}
}
#endif /* USE_PRINTING */
static const struct internal_drawing_api internal_drawing = {
draw_set_colour,
#ifdef USE_CAIRO
do_draw_fill,
do_draw_fill_preserve,
#endif
};
#ifdef USE_CAIRO
static const struct internal_drawing_api internal_printing = {
print_set_colour,
do_print_fill,
do_print_fill_preserve,
};
#endif
static const struct drawing_api gtk_drawing = {
gtk_draw_text,
gtk_draw_rect,
gtk_draw_line,
gtk_draw_poly,
gtk_draw_circle,
gtk_draw_update,
gtk_clip,
gtk_unclip,
gtk_start_draw,
gtk_end_draw,
gtk_status_bar,
gtk_blitter_new,
gtk_blitter_free,
gtk_blitter_save,
gtk_blitter_load,
#ifdef USE_PRINTING
gtk_begin_doc,
gtk_begin_page,
gtk_begin_puzzle,
gtk_end_puzzle,
gtk_end_page,
gtk_end_doc,
gtk_line_width,
gtk_line_dotted,
#else
NULL, NULL, NULL, NULL, NULL, NULL, /* {begin,end}_{doc,page,puzzle} */
NULL, NULL, /* line_width, line_dotted */
#endif
#ifdef USE_PANGO
gtk_text_fallback,
#else
NULL,
#endif
#ifdef NO_THICK_LINE
NULL,
#else
gtk_draw_thick_line,
#endif
};
static void destroy(GtkWidget *widget, gpointer data)
{
frontend *fe = (frontend *)data;
deactivate_timer(fe);
midend_free(fe->me);
gtk_main_quit();
}
static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
frontend *fe = (frontend *)data;
int keyval;
int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
if (!backing_store_ok(fe))
return true;
/* Handle mnemonics. */
if (gtk_window_activate_key(GTK_WINDOW(fe->window), event))
return true;
if (event->keyval == GDK_KEY_Up)
keyval = shift | ctrl | CURSOR_UP;
else if (event->keyval == GDK_KEY_KP_Up ||
event->keyval == GDK_KEY_KP_8)
keyval = MOD_NUM_KEYPAD | '8';
else if (event->keyval == GDK_KEY_Down)
keyval = shift | ctrl | CURSOR_DOWN;
else if (event->keyval == GDK_KEY_KP_Down ||
event->keyval == GDK_KEY_KP_2)
keyval = MOD_NUM_KEYPAD | '2';
else if (event->keyval == GDK_KEY_Left)
keyval = shift | ctrl | CURSOR_LEFT;
else if (event->keyval == GDK_KEY_KP_Left ||
event->keyval == GDK_KEY_KP_4)
keyval = MOD_NUM_KEYPAD | '4';
else if (event->keyval == GDK_KEY_Right)
keyval = shift | ctrl | CURSOR_RIGHT;
else if (event->keyval == GDK_KEY_KP_Right ||
event->keyval == GDK_KEY_KP_6)
keyval = MOD_NUM_KEYPAD | '6';
else if (event->keyval == GDK_KEY_KP_Home ||
event->keyval == GDK_KEY_KP_7)
keyval = MOD_NUM_KEYPAD | '7';
else if (event->keyval == GDK_KEY_KP_End ||
event->keyval == GDK_KEY_KP_1)
keyval = MOD_NUM_KEYPAD | '1';
else if (event->keyval == GDK_KEY_KP_Page_Up ||
event->keyval == GDK_KEY_KP_9)
keyval = MOD_NUM_KEYPAD | '9';
else if (event->keyval == GDK_KEY_KP_Page_Down ||
event->keyval == GDK_KEY_KP_3)
keyval = MOD_NUM_KEYPAD | '3';
else if (event->keyval == GDK_KEY_KP_Insert ||
event->keyval == GDK_KEY_KP_0)
keyval = MOD_NUM_KEYPAD | '0';
else if (event->keyval == GDK_KEY_KP_Begin ||
event->keyval == GDK_KEY_KP_5)
keyval = MOD_NUM_KEYPAD | '5';
else if (event->keyval == GDK_KEY_BackSpace ||
event->keyval == GDK_KEY_Delete ||
event->keyval == GDK_KEY_KP_Delete)
keyval = '\177';
else if ((event->keyval == 'z' || event->keyval == 'Z') && shift && ctrl)
keyval = UI_REDO;
else if (event->string[0] && !event->string[1])
keyval = (unsigned char)event->string[0];
else
keyval = -1;
if (keyval >= 0 &&
midend_process_key(fe->me, 0, 0, keyval) == PKR_QUIT)
gtk_widget_destroy(fe->window);
return true;
}
static gint button_event(GtkWidget *widget, GdkEventButton *event,
gpointer data)
{
frontend *fe = (frontend *)data;
int button;
if (!backing_store_ok(fe))
return true;
if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
return true;
if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
button = MIDDLE_BUTTON;
else if (event->button == 3 || (event->state & GDK_MOD1_MASK))
button = RIGHT_BUTTON;
else if (event->button == 1)
button = LEFT_BUTTON;
else if (event->button == 8 && event->type == GDK_BUTTON_PRESS)
button = 'u';
else if (event->button == 9 && event->type == GDK_BUTTON_PRESS)
button = 'r';
else
return false; /* don't even know what button! */
if (event->type == GDK_BUTTON_RELEASE && button >= LEFT_BUTTON)
button += LEFT_RELEASE - LEFT_BUTTON;
if (midend_process_key(fe->me, event->x - fe->ox,
event->y - fe->oy, button) == PKR_QUIT)
gtk_widget_destroy(fe->window);
return true;
}
static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
gpointer data)
{
frontend *fe = (frontend *)data;
int button;
if (!backing_store_ok(fe))
return true;
if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
button = MIDDLE_DRAG;
else if (event->state & GDK_BUTTON1_MASK)
button = LEFT_DRAG;
else if (event->state & GDK_BUTTON3_MASK)
button = RIGHT_DRAG;
else
return false; /* don't even know what button! */
if (midend_process_key(fe->me, event->x - fe->ox,
event->y - fe->oy, button) == PKR_QUIT)
gtk_widget_destroy(fe->window);
#if GTK_CHECK_VERSION(2,12,0)
gdk_event_request_motions(event);
#else
gdk_window_get_pointer(gtk_widget_get_window(widget), NULL, NULL, NULL);
#endif
return true;
}
#if GTK_CHECK_VERSION(3,0,0)
static gint draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
{
frontend *fe = (frontend *)data;
GdkRectangle dirtyrect;
cairo_surface_t *target_surface = cairo_get_target(cr);
cairo_matrix_t m;
cairo_get_matrix(cr, &m);
double orig_sx, orig_sy;
cairo_surface_get_device_scale(target_surface, &orig_sx, &orig_sy);
cairo_surface_set_device_scale(target_surface, 1.0, 1.0);
cairo_translate(cr, m.x0 * (orig_sx - 1.0), m.y0 * (orig_sy - 1.0));
gdk_cairo_get_clip_rectangle(cr, &dirtyrect);
cairo_set_source_surface(cr, fe->image, fe->ox, fe->oy);
cairo_rectangle(cr, dirtyrect.x, dirtyrect.y,
dirtyrect.width, dirtyrect.height);
cairo_fill(cr);
cairo_surface_set_device_scale(target_surface, orig_sx, orig_sy);
return true;
}
#else
static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
gpointer data)
{
frontend *fe = (frontend *)data;
if (backing_store_ok(fe)) {
#ifdef USE_CAIRO_WITHOUT_PIXMAP
cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget));
cairo_set_source_surface(cr, fe->image, fe->ox, fe->oy);
cairo_rectangle(cr, event->area.x, event->area.y,
event->area.width, event->area.height);
cairo_fill(cr);
cairo_destroy(cr);
#else
repaint_rectangle(fe, widget,
event->area.x, event->area.y,
event->area.width, event->area.height);
#endif
}
return true;
}
#endif
static gint map_window(GtkWidget *widget, GdkEvent *event,
gpointer data)
{
frontend *fe = (frontend *)data;
/*
* Apparently we need to do this because otherwise the status
* bar will fail to update immediately. Annoying, but there we
* go.
*/
gtk_widget_queue_draw(fe->window);
return true;
}
static void resize_puzzle_to_area(frontend *fe, int x, int y)
{
int oldw = fe->w, oldpw = fe->pw, oldh = fe->h, oldph = fe->ph;
int oldps = fe->ps;
fe->w = x;
fe->h = y;
midend_size(fe->me, &x, &y, true, 1.0);
fe->pw = x;
fe->ph = y;
#if GTK_CHECK_VERSION(3,10,0)
fe->ps = gtk_widget_get_scale_factor(fe->area);
#else
fe->ps = 1;
#endif
fe->ox = (fe->w - fe->pw) / 2;
fe->oy = (fe->h - fe->ph) / 2;
if (oldw != fe->w || oldpw != fe->pw || oldps != fe->ps ||
oldh != fe->h || oldph != fe->ph || !backing_store_ok(fe)) {
if (backing_store_ok(fe))
teardown_backing_store(fe);
setup_backing_store(fe);
}
midend_force_redraw(fe->me);
}
static gint configure_area(GtkWidget *widget,
GdkEventConfigure *event, gpointer data)
{
frontend *fe = (frontend *)data;
resize_puzzle_to_area(fe, event->width, event->height);
#if GTK_CHECK_VERSION(3,0,0)
fe->awaiting_resize_ack = false;
#endif
return true;
}
#if GTK_CHECK_VERSION(3,0,0)
static void window_size_alloc(GtkWidget *widget, GtkAllocation *allocation,
gpointer data)
{
frontend *fe = (frontend *)data;
if (fe->awaiting_resize_ack) {
GtkAllocation a;
gtk_widget_get_allocation(fe->area, &a);
resize_puzzle_to_area(fe, a.width, a.height);
fe->awaiting_resize_ack = false;
}
}
#endif
static gint timer_func(gpointer data)
{
frontend *fe = (frontend *)data;
if (fe->timer_active) {
struct timeval now;
float elapsed;
gettimeofday(&now, NULL);
elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
(now.tv_sec - fe->last_time.tv_sec));
midend_timer(fe->me, elapsed); /* may clear timer_active */
fe->last_time = now;
}
return fe->timer_active;
}
void deactivate_timer(frontend *fe)
{
if (!fe)
return; /* can happen due to --generate */
if (fe->timer_active)
g_source_remove(fe->timer_id);
fe->timer_active = false;
}
void activate_timer(frontend *fe)
{
if (!fe)
return; /* can happen due to --generate */
if (!fe->timer_active) {
fe->timer_id = g_timeout_add(20, timer_func, fe);
gettimeofday(&fe->last_time, NULL);
}
fe->timer_active = true;
}
static void window_destroy(GtkWidget *widget, gpointer data)
{
gtk_main_quit();
}
static gint win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
GObject *cancelbutton = G_OBJECT(data);
/*
* `Escape' effectively clicks the cancel button
*/
if (event->keyval == GDK_KEY_Escape) {
g_signal_emit_by_name(cancelbutton, "clicked");
return true;
}
return false;
}
enum { MB_OK, MB_YESNO };
static void align_label(GtkLabel *label, double x, double y)
{
#if GTK_CHECK_VERSION(3,16,0)
gtk_label_set_xalign(label, x);
gtk_label_set_yalign(label, y);
#elif GTK_CHECK_VERSION(3,14,0)
gtk_widget_set_halign(GTK_WIDGET(label),
x == 0 ? GTK_ALIGN_START :
x == 1 ? GTK_ALIGN_END : GTK_ALIGN_CENTER);
gtk_widget_set_valign(GTK_WIDGET(label),
y == 0 ? GTK_ALIGN_START :
y == 1 ? GTK_ALIGN_END : GTK_ALIGN_CENTER);
#else
gtk_misc_set_alignment(GTK_MISC(label), x, y);
#endif
}
#if GTK_CHECK_VERSION(3,0,0)
static bool message_box(GtkWidget *parent, const char *title, const char *msg,
bool centre, int type)
{
GtkWidget *window;
gint ret;
window = gtk_message_dialog_new
(GTK_WINDOW(parent),
(GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT),
(type == MB_OK ? GTK_MESSAGE_INFO : GTK_MESSAGE_QUESTION),
(type == MB_OK ? GTK_BUTTONS_OK : GTK_BUTTONS_YES_NO),
"%s", msg);
gtk_window_set_title(GTK_WINDOW(window), title);
ret = gtk_dialog_run(GTK_DIALOG(window));
gtk_widget_destroy(window);
return (type == MB_OK ? true : (ret == GTK_RESPONSE_YES));
}
#else /* GTK_CHECK_VERSION(3,0,0) */
static void msgbox_button_clicked(GtkButton *button, gpointer data)
{
GtkWidget *window = GTK_WIDGET(data);
int v, *ip;
ip = (int *)g_object_get_data(G_OBJECT(window), "user-data");
v = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "user-data"));
*ip = v;
gtk_widget_destroy(GTK_WIDGET(data));
}
bool message_box(GtkWidget *parent, const char *title, const char *msg,
bool centre, int type)
{
GtkWidget *window, *hbox, *text, *button;
const char *titles;
int i, def, cancel;
window = gtk_dialog_new();
text = gtk_label_new(msg);
align_label(GTK_LABEL(text), 0.0, 0.0);
hbox = gtk_hbox_new(false, 0);
gtk_box_pack_start(GTK_BOX(hbox), text, false, false, 20);
gtk_box_pack_start
(GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(window))),
hbox, false, false, 20);
gtk_widget_show(text);
gtk_widget_show(hbox);
gtk_window_set_title(GTK_WINDOW(window), title);
gtk_label_set_line_wrap(GTK_LABEL(text), true);
if (type == MB_OK) {
titles = LABEL_OK "\0";
def = cancel = 0;
} else {
assert(type == MB_YESNO);
titles = LABEL_NO "\0" LABEL_YES "\0";
def = 1;
cancel = 0;
}
i = 0;
while (*titles) {
button = gtk_button_new_with_our_label(titles);
gtk_box_pack_end
(GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(window))),
button, false, false, 0);
gtk_widget_show(button);
if (i == def) {
gtk_widget_set_can_default(button, true);
gtk_window_set_default(GTK_WINDOW(window), button);
}
if (i == cancel) {
g_signal_connect(G_OBJECT(window), "key_press_event",
G_CALLBACK(win_key_press), button);
}
g_signal_connect(G_OBJECT(button), "clicked",
G_CALLBACK(msgbox_button_clicked), window);
g_object_set_data(G_OBJECT(button), "user-data",
GINT_TO_POINTER(i));
titles += strlen(titles)+1;
i++;
}
g_object_set_data(G_OBJECT(window), "user-data", &i);
g_signal_connect(G_OBJECT(window), "destroy",
G_CALLBACK(window_destroy), NULL);
gtk_window_set_modal(GTK_WINDOW(window), true);
gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
/* set_transient_window_pos(parent, window); */
gtk_widget_show(window);
i = -1;
gtk_main();
return (type == MB_YESNO ? i == 1 : true);
}
#endif /* GTK_CHECK_VERSION(3,0,0) */
static void error_box(GtkWidget *parent, const char *msg)
{
message_box(parent, "Error", msg, false, MB_OK);
}
static void config_ok_button_clicked(GtkButton *button, gpointer data)
{
frontend *fe = (frontend *)data;
const char *err;
err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
if (err)
error_box(fe->cfgbox, err);
else {
if (fe->cfg_which == CFG_PREFS) {
char *prefs_err = save_prefs(fe);
if (prefs_err) {
error_box(fe->cfgbox, prefs_err);
sfree(prefs_err);
}
}
fe->cfgret = true;
gtk_widget_destroy(fe->cfgbox);
if (fe->cfg_which != CFG_PREFS)
changed_preset(fe);
}
}
static void config_cancel_button_clicked(GtkButton *button, gpointer data)
{
frontend *fe = (frontend *)data;
gtk_widget_destroy(fe->cfgbox);
}
static gint editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
/*
* GtkEntry has a nasty habit of eating the Return key, which
* is unhelpful since it doesn't actually _do_ anything with it
* (it calls gtk_widget_activate, but our edit boxes never need
* activating). So I catch Return before GtkEntry sees it, and
* pass it straight on to the parent widget. Effect: hitting
* Return in an edit box will now activate the default button
* in the dialog just like it will everywhere else.
*/
if (event->keyval == GDK_KEY_Return &&
gtk_widget_get_parent(widget) != NULL) {
gint return_val;
g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
g_signal_emit_by_name(G_OBJECT(gtk_widget_get_parent(widget)),
"key_press_event", event, &return_val);
return return_val;
}
return false;
}
static void editbox_changed(GtkEditable *ed, gpointer data)
{
config_item *i = (config_item *)data;
assert(i->type == C_STRING);
sfree(i->u.string.sval);
i->u.string.sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
}
static void button_toggled(GtkToggleButton *tb, gpointer data)
{
config_item *i = (config_item *)data;
assert(i->type == C_BOOLEAN);
i->u.boolean.bval = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
}
static void droplist_sel(GtkComboBox *combo, gpointer data)
{
config_item *i = (config_item *)data;
assert(i->type == C_CHOICES);
i->u.choices.selected = gtk_combo_box_get_active(combo);
}
static bool get_config(frontend *fe, int which)
{
GtkWidget *w, *table, *cancel;
GtkBox *content_box, *button_box;
char *title;
config_item *i;
int y;
fe->cfg = midend_get_config(fe->me, which, &title);
fe->cfg_which = which;
fe->cfgret = false;
#if GTK_CHECK_VERSION(3,0,0)
/* GtkDialog isn't quite flexible enough */
fe->cfgbox = gtk_window_new(GTK_WINDOW_TOPLEVEL);
content_box = GTK_BOX(gtk_vbox_new(false, 8));
g_object_set(G_OBJECT(content_box), "margin", 8, (const char *)NULL);
gtk_widget_show(GTK_WIDGET(content_box));
gtk_container_add(GTK_CONTAINER(fe->cfgbox), GTK_WIDGET(content_box));
button_box = GTK_BOX(gtk_hbox_new(false, 8));
gtk_widget_show(GTK_WIDGET(button_box));
gtk_box_pack_end(content_box, GTK_WIDGET(button_box), false, false, 0);
{
GtkWidget *sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
gtk_widget_show(sep);
gtk_box_pack_end(content_box, sep, false, false, 0);
}
#else
fe->cfgbox = gtk_dialog_new();
content_box = GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(fe->cfgbox)));
button_box = GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(fe->cfgbox)));
#endif
gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
sfree(title);
w = gtk_button_new_with_our_label(LABEL_CANCEL);
gtk_box_pack_end(button_box, w, false, false, 0);
gtk_widget_show(w);
g_signal_connect(G_OBJECT(w), "clicked",
G_CALLBACK(config_cancel_button_clicked), fe);
cancel = w;
w = gtk_button_new_with_our_label(LABEL_OK);
gtk_box_pack_end(button_box, w, false, false, 0);
gtk_widget_show(w);
gtk_widget_set_can_default(w, true);
gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
g_signal_connect(G_OBJECT(w), "clicked",
G_CALLBACK(config_ok_button_clicked), fe);
#if GTK_CHECK_VERSION(3,0,0)
table = gtk_grid_new();
#else
table = gtk_table_new(1, 2, false);
#endif
y = 0;
gtk_box_pack_start(content_box, table, false, false, 0);
gtk_widget_show(table);
for (i = fe->cfg; i->type != C_END; i++) {
#if !GTK_CHECK_VERSION(3,0,0)
gtk_table_resize(GTK_TABLE(table), y+1, 2);
#endif
switch (i->type) {
case C_STRING:
/*
* Edit box with a label beside it.
*/
w = gtk_label_new(i->name);
align_label(GTK_LABEL(w), 0.0, 0.5);
#if GTK_CHECK_VERSION(3,0,0)
gtk_grid_attach(GTK_GRID(table), w, 0, y, 1, 1);
#else
gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
#endif
gtk_widget_show(w);
w = gtk_entry_new();
#if GTK_CHECK_VERSION(3,0,0)
gtk_grid_attach(GTK_GRID(table), w, 1, y, 1, 1);
g_object_set(G_OBJECT(w), "hexpand", true, (const char *)NULL);
#else
gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
#endif
gtk_entry_set_text(GTK_ENTRY(w), i->u.string.sval);
g_signal_connect(G_OBJECT(w), "changed",
G_CALLBACK(editbox_changed), i);
g_signal_connect(G_OBJECT(w), "key_press_event",
G_CALLBACK(editbox_key), NULL);
gtk_widget_show(w);
break;
case C_BOOLEAN:
/*
* Simple checkbox.
*/
w = gtk_check_button_new_with_label(i->name);
g_signal_connect(G_OBJECT(w), "toggled",
G_CALLBACK(button_toggled), i);
#if GTK_CHECK_VERSION(3,0,0)
gtk_grid_attach(GTK_GRID(table), w, 0, y, 2, 1);
g_object_set(G_OBJECT(w), "hexpand", true, (const char *)NULL);
#else
gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
#endif
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w),
i->u.boolean.bval);
gtk_widget_show(w);
break;
case C_CHOICES:
/*
* Drop-down list (GtkComboBox).
*/
w = gtk_label_new(i->name);
align_label(GTK_LABEL(w), 0.0, 0.5);
#if GTK_CHECK_VERSION(3,0,0)
gtk_grid_attach(GTK_GRID(table), w, 0, y, 1, 1);
#else
gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL ,
3, 3);
#endif
gtk_widget_show(w);
{
int c;
const char *p, *q;
char *name;
GtkListStore *model;
GtkCellRenderer *cr;
GtkTreeIter iter;
model = gtk_list_store_new(1, G_TYPE_STRING);
c = *i->u.choices.choicenames;
p = i->u.choices.choicenames+1;
while (*p) {
q = p;
while (*q && *q != c)
q++;
name = snewn(q-p+1, char);
strncpy(name, p, q-p);
name[q-p] = '\0';
if (*q) q++; /* eat delimiter */
gtk_list_store_append(model, &iter);
gtk_list_store_set(model, &iter, 0, name, -1);
p = q;
}
w = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
gtk_combo_box_set_active(GTK_COMBO_BOX(w),
i->u.choices.selected);
cr = gtk_cell_renderer_text_new();
gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(w), cr, true);
gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(w), cr,
"text", 0, NULL);
g_signal_connect(G_OBJECT(w), "changed",
G_CALLBACK(droplist_sel), i);
}
#if GTK_CHECK_VERSION(3,0,0)
gtk_grid_attach(GTK_GRID(table), w, 1, y, 1, 1);
g_object_set(G_OBJECT(w), "hexpand", true, (const char *)NULL);
#else
gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
#endif
gtk_widget_show(w);
break;
}
y++;
}
g_signal_connect(G_OBJECT(fe->cfgbox), "destroy",
G_CALLBACK(window_destroy), NULL);
g_signal_connect(G_OBJECT(fe->cfgbox), "key_press_event",
G_CALLBACK(win_key_press), cancel);
gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), true);
gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
GTK_WINDOW(fe->window));
/* set_transient_window_pos(fe->window, fe->cfgbox); */
gtk_widget_show(fe->cfgbox);
gtk_main();
free_cfg(fe->cfg);
return fe->cfgret;
}
static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
int key = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(menuitem),
"user-data"));
if (midend_process_key(fe->me, 0, 0, key) == PKR_QUIT)
gtk_widget_destroy(fe->window);
}
static void get_size(frontend *fe, int *px, int *py)
{
int x, y;
/*
* Currently I don't want to make the GTK port scale large
* puzzles to fit on the screen. This is because X does permit
* extremely large windows and many window managers provide a
* means of navigating round them, and the users I consulted
* before deciding said that they'd rather have enormous puzzle
* windows spanning multiple screen pages than have them
* shrunk. I could change my mind later or introduce
* configurability; this would be the place to do so, by
* replacing the initial values of x and y with the screen
* dimensions.
*/
x = INT_MAX;
y = INT_MAX;
midend_size(fe->me, &x, &y, false, 1.0);
*px = x;
*py = y;
}
#if !GTK_CHECK_VERSION(2,0,0)
#define gtk_window_resize(win, x, y) \
gdk_window_resize(GTK_WIDGET(win)->window, x, y)
#endif
/*
* Called when any other code in this file has changed the
* selected game parameters.
*/
static void changed_preset(frontend *fe)
{
int n = midend_which_preset(fe->me);
fe->preset_threaded = true;
if (n < 0 && fe->preset_custom) {
gtk_check_menu_item_set_active(
GTK_CHECK_MENU_ITEM(fe->preset_custom),
true);
} else {
GSList *gs = fe->preset_radio;
GSList *found = NULL;
for (gs = fe->preset_radio; gs; gs = gs->next) {
struct preset_menu_entry *entry =
(struct preset_menu_entry *)g_object_get_data(
G_OBJECT(gs->data), "user-data");
if (!entry || entry->id != n)
gtk_check_menu_item_set_active(
GTK_CHECK_MENU_ITEM(gs->data), false);
else
found = gs;
}
if (found)
gtk_check_menu_item_set_active(
GTK_CHECK_MENU_ITEM(found->data), true);
}
fe->preset_threaded = false;
/*
* Update the greying on the Copy menu option.
*/
if (fe->copy_menu_item) {
bool enabled = midend_can_format_as_text_now(fe->me);
gtk_widget_set_sensitive(fe->copy_menu_item, enabled);
}
}
#if !GTK_CHECK_VERSION(3,0,0)
static bool not_size_allocated_yet(GtkWidget *w)
{
/*
* This function tests whether a widget has not yet taken up space
* on the screen which it will occupy in future. (Therefore, it
* returns true only if the widget does exist but does not have a
* size allocation. A null widget is already taking up all the
* space it ever will.)
*/
if (!w)
return false; /* nonexistent widgets aren't a problem */
#if GTK_CHECK_VERSION(2,18,0) /* skip if no gtk_widget_get_allocation */
{
GtkAllocation a;
gtk_widget_get_allocation(w, &a);
if (a.height == 0 || a.width == 0)
return true; /* widget exists but has no size yet */
}
#endif
return false;
}
static void try_shrink_drawing_area(frontend *fe)
{
if (fe->drawing_area_shrink_pending &&
(!fe->menubar_is_local || !not_size_allocated_yet(fe->menubar)) &&
!not_size_allocated_yet(fe->statusbar)) {
/*
* In order to permit the user to resize the window smaller as
* well as bigger, we call this function after the window size
* has ended up where we want it. This shouldn't shrink the
* window immediately; it just arranges that the next time the
* user tries to shrink it, they can.
*
* However, at puzzle creation time, we defer the first of
* these operations until after the menu bar and status bar
* are actually visible. On Ubuntu 12.04 I've found that these
* can take a while to be displayed, and that it's a mistake
* to reduce the drawing area's size allocation before they've
* turned up or else the drawing area makes room for them by
* shrinking to less than the size we intended.
*/
gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), 1, 1);
fe->drawing_area_shrink_pending = false;
}
}
#endif /* !GTK_CHECK_VERSION(3,0,0) */
static gint configure_window(GtkWidget *widget,
GdkEventConfigure *event, gpointer data)
{
#if !GTK_CHECK_VERSION(3,0,0)
/*
* When the main puzzle window changes size, it might be because
* the menu bar or status bar has turned up after starting off
* absent, in which case we should have another go at enacting a
* pending shrink of the drawing area.
*/
frontend *fe = (frontend *)data;
try_shrink_drawing_area(fe);
#endif
return false;
}
#if GTK_CHECK_VERSION(3,0,0)
static int window_extra_height(frontend *fe)
{
int ret = 0;
if (fe->menubar) {
GtkRequisition req;
gtk_widget_get_preferred_size(fe->menubar, &req, NULL);
ret += req.height;
}
if (fe->statusbar) {
GtkRequisition req;
gtk_widget_get_preferred_size(fe->statusbar, &req, NULL);
ret += req.height;
}
return ret;
}
#endif
static void resize_fe(frontend *fe)
{
int x, y;
get_size(fe, &x, &y);
#if GTK_CHECK_VERSION(3,0,0)
gtk_window_resize(GTK_WINDOW(fe->window), x, y + window_extra_height(fe));
fe->awaiting_resize_ack = true;
#else
fe->drawing_area_shrink_pending = false;
gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
{
GtkRequisition req;
gtk_widget_size_request(GTK_WIDGET(fe->window), &req);
gtk_window_resize(GTK_WINDOW(fe->window), req.width, req.height);
}
fe->drawing_area_shrink_pending = true;
try_shrink_drawing_area(fe);
#endif
}
static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
struct preset_menu_entry *entry =
(struct preset_menu_entry *)g_object_get_data(
G_OBJECT(menuitem), "user-data");
if (fe->preset_threaded ||
(GTK_IS_CHECK_MENU_ITEM(menuitem) &&
!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem))))
return;
midend_set_params(fe->me, entry->params);
midend_new_game(fe->me);
changed_preset(fe);
resize_fe(fe);
midend_redraw(fe->me);
}
static GdkAtom compound_text_atom, utf8_string_atom;
static bool paste_initialised = false;
static void set_selection(frontend *fe, GdkAtom selection)
{
if (!paste_initialised) {
compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", false);
utf8_string_atom = gdk_atom_intern("UTF8_STRING", false);
paste_initialised = true;
}
/*
* For this simple application we can safely assume that the
* data passed to this function is pure ASCII, which means we
* can return precisely the same stuff for types STRING,
* COMPOUND_TEXT or UTF8_STRING.
*/
if (gtk_selection_owner_set(fe->window, selection, CurrentTime)) {
gtk_selection_clear_targets(fe->window, selection);
gtk_selection_add_target(fe->window, selection,
GDK_SELECTION_TYPE_STRING, 1);
gtk_selection_add_target(fe->window, selection, compound_text_atom, 1);
gtk_selection_add_target(fe->window, selection, utf8_string_atom, 1);
}
}
static void write_clip(frontend *fe, char *data)
{
if (fe->paste_data)
sfree(fe->paste_data);
fe->paste_data = data;
fe->paste_data_len = strlen(data);
set_selection(fe, GDK_SELECTION_PRIMARY);
set_selection(fe, GDK_SELECTION_CLIPBOARD);
}
static void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
guint info, guint time_stamp, gpointer data)
{
frontend *fe = (frontend *)data;
gtk_selection_data_set(seldata, gtk_selection_data_get_target(seldata), 8,
fe->paste_data, fe->paste_data_len);
}
static gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
gpointer data)
{
frontend *fe = (frontend *)data;
if (fe->paste_data)
sfree(fe->paste_data);
fe->paste_data = NULL;
fe->paste_data_len = 0;
return true;
}
static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
char *text;
text = midend_text_format(fe->me);
if (text) {
write_clip(fe, text);
} else {
gdk_display_beep(gdk_display_get_default());
}
}
#ifdef OLD_FILESEL
static void filesel_ok(GtkButton *button, gpointer data)
{
frontend *fe = (frontend *)data;
gpointer filesel = g_object_get_data(G_OBJECT(button), "user-data");
const char *name =
gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
fe->filesel_name = dupstr(name);
}
static char *file_selector(frontend *fe, const char *title, int save)
{
GtkWidget *filesel =
gtk_file_selection_new(title);
fe->filesel_name = NULL;
gtk_window_set_modal(GTK_WINDOW(filesel), true);
g_object_set_data
(G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "user-data",
(gpointer)filesel);
g_signal_connect
(G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
G_CALLBACK(filesel_ok), fe);
g_signal_connect_swapped
(G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
G_CALLBACK(gtk_widget_destroy), (gpointer)filesel);
g_signal_connect_object
(G_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button), "clicked",
G_CALLBACK(gtk_widget_destroy), (gpointer)filesel);
g_signal_connect(G_OBJECT(filesel), "destroy",
G_CALLBACK(window_destroy), NULL);
gtk_widget_show(filesel);
gtk_window_set_transient_for(GTK_WINDOW(filesel), GTK_WINDOW(fe->window));
gtk_main();
return fe->filesel_name;
}
#else
static char *file_selector(frontend *fe, const char *title, bool save)
{
char *filesel_name = NULL;
GtkWidget *filesel =
gtk_file_chooser_dialog_new(title,
GTK_WINDOW(fe->window),
save ? GTK_FILE_CHOOSER_ACTION_SAVE :
GTK_FILE_CHOOSER_ACTION_OPEN,
LABEL_CANCEL, GTK_RESPONSE_CANCEL,
save ? LABEL_SAVE : LABEL_OPEN,
GTK_RESPONSE_ACCEPT,
NULL);
if (gtk_dialog_run(GTK_DIALOG(filesel)) == GTK_RESPONSE_ACCEPT) {
char *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(filesel));
filesel_name = dupstr(name);
g_free(name);
}
gtk_widget_destroy(filesel);
return filesel_name;
}
#endif
#ifdef USE_PRINTING
static GObject *create_print_widget(GtkPrintOperation *print, gpointer data)
{
GtkLabel *count_label, *width_label, *height_label,
*scale_llabel, *scale_rlabel;
GtkBox *scale_hbox;
GtkWidget *grid;
frontend *fe = (frontend *)data;
fe->printcount_spin_button =
GTK_SPIN_BUTTON(gtk_spin_button_new_with_range(1, 999, 1));
gtk_spin_button_set_numeric(fe->printcount_spin_button, true);
gtk_spin_button_set_snap_to_ticks(fe->printcount_spin_button, true);
fe->printw_spin_button =
GTK_SPIN_BUTTON(gtk_spin_button_new_with_range(1, 99, 1));
gtk_spin_button_set_numeric(fe->printw_spin_button, true);
gtk_spin_button_set_snap_to_ticks(fe->printw_spin_button, true);
fe->printh_spin_button =
GTK_SPIN_BUTTON(gtk_spin_button_new_with_range(1, 99, 1));
gtk_spin_button_set_numeric(fe->printh_spin_button, true);
gtk_spin_button_set_snap_to_ticks(fe->printh_spin_button, true);
fe->printscale_spin_button =
GTK_SPIN_BUTTON(gtk_spin_button_new_with_range(1, 1000, 1));
gtk_spin_button_set_digits(fe->printscale_spin_button, 1);
gtk_spin_button_set_numeric(fe->printscale_spin_button, true);
if (thegame.can_solve) {
fe->soln_check_button =
GTK_CHECK_BUTTON(
gtk_check_button_new_with_label("Print solutions"));
}
if (thegame.can_print_in_colour) {
fe->colour_check_button =
GTK_CHECK_BUTTON(
gtk_check_button_new_with_label("Print in color"));
}
/* Set defaults to what was selected last time. */
gtk_spin_button_set_value(fe->printcount_spin_button,
(gdouble)fe->printcount);
gtk_spin_button_set_value(fe->printw_spin_button,
(gdouble)fe->printw);
gtk_spin_button_set_value(fe->printh_spin_button,
(gdouble)fe->printh);
gtk_spin_button_set_value(fe->printscale_spin_button,
(gdouble)fe->printscale);
if (thegame.can_solve) {
gtk_toggle_button_set_active(
GTK_TOGGLE_BUTTON(fe->soln_check_button), fe->printsolns);
}
if (thegame.can_print_in_colour) {
gtk_toggle_button_set_active(
GTK_TOGGLE_BUTTON(fe->colour_check_button), fe->printcolour);
}
count_label = GTK_LABEL(gtk_label_new("Puzzles to print:"));
width_label = GTK_LABEL(gtk_label_new("Puzzles across:"));
height_label = GTK_LABEL(gtk_label_new("Puzzles down:"));
scale_llabel = GTK_LABEL(gtk_label_new("Puzzle scale:"));
scale_rlabel = GTK_LABEL(gtk_label_new("%"));
#if GTK_CHECK_VERSION(3,0,0)
gtk_widget_set_halign(GTK_WIDGET(count_label), GTK_ALIGN_START);
gtk_widget_set_halign(GTK_WIDGET(width_label), GTK_ALIGN_START);
gtk_widget_set_halign(GTK_WIDGET(height_label), GTK_ALIGN_START);
gtk_widget_set_halign(GTK_WIDGET(scale_llabel), GTK_ALIGN_START);
#else
gtk_misc_set_alignment(GTK_MISC(count_label), 0, 0);
gtk_misc_set_alignment(GTK_MISC(width_label), 0, 0);
gtk_misc_set_alignment(GTK_MISC(height_label), 0, 0);
gtk_misc_set_alignment(GTK_MISC(scale_llabel), 0, 0);
#endif
scale_hbox = GTK_BOX(gtk_hbox_new(false, 6));
gtk_box_pack_start(scale_hbox, GTK_WIDGET(fe->printscale_spin_button),
false, false, 0);
gtk_box_pack_start(scale_hbox, GTK_WIDGET(scale_rlabel),
false, false, 0);
#if GTK_CHECK_VERSION(3,0,0)
grid = gtk_grid_new();
gtk_grid_set_column_spacing(GTK_GRID(grid), 18);
gtk_grid_set_row_spacing(GTK_GRID(grid), 18);
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(count_label), 0, 0, 1, 1);
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(width_label), 0, 1, 1, 1);
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(height_label), 0, 2, 1, 1);
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(scale_llabel), 0, 3, 1, 1);
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(fe->printcount_spin_button),
1, 0, 1, 1);
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(fe->printw_spin_button),
1, 1, 1, 1);
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(fe->printh_spin_button),
1, 2, 1, 1);
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(scale_hbox), 1, 3, 1, 1);
if (thegame.can_solve) {
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(fe->soln_check_button),
0, 4, 1, 1);
}
if (thegame.can_print_in_colour) {
gtk_grid_attach(GTK_GRID(grid), GTK_WIDGET(fe->colour_check_button),
thegame.can_solve, 4, 1, 1);
}
#else
grid = gtk_table_new((thegame.can_solve || thegame.can_print_in_colour) ?
5 : 4, 2, false);
gtk_table_set_col_spacings(GTK_TABLE(grid), 18);
gtk_table_set_row_spacings(GTK_TABLE(grid), 18);
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(count_label), 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(width_label), 0, 1, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(height_label), 0, 1, 2, 3,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(scale_llabel), 0, 1, 3, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(fe->printcount_spin_button),
1, 2, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(fe->printw_spin_button),
1, 2, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(fe->printh_spin_button),
1, 2, 2, 3,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(scale_hbox), 1, 2, 3, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
if (thegame.can_solve) {
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(fe->soln_check_button),
0, 1, 4, 5,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
}
if (thegame.can_print_in_colour) {
gtk_table_attach(GTK_TABLE(grid), GTK_WIDGET(fe->colour_check_button),
thegame.can_solve, thegame.can_solve + 1, 4, 5,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
}
#endif
gtk_container_set_border_width(GTK_CONTAINER(grid), 12);
gtk_widget_show_all(grid);
return G_OBJECT(grid);
}
static void apply_print_widget(GtkPrintOperation *print,
GtkWidget *widget, gpointer data)
{
frontend *fe = (frontend *)data;
/* We ignore `widget' because it is easier and faster to store the
widgets we need in `fe' then to get the children of `widget'. */
fe->printcount =
gtk_spin_button_get_value_as_int(fe->printcount_spin_button);
fe->printw = gtk_spin_button_get_value_as_int(fe->printw_spin_button);
fe->printh = gtk_spin_button_get_value_as_int(fe->printh_spin_button);
fe->printscale = gtk_spin_button_get_value(fe->printscale_spin_button);
if (thegame.can_solve) {
fe->printsolns =
gtk_toggle_button_get_active(
GTK_TOGGLE_BUTTON(fe->soln_check_button));
}
if (thegame.can_print_in_colour) {
fe->printcolour =
gtk_toggle_button_get_active(
GTK_TOGGLE_BUTTON(fe->colour_check_button));
}
}
static void print_begin(GtkPrintOperation *printop,
GtkPrintContext *context, gpointer data)
{
frontend *fe = (frontend *)data;
midend *nme = NULL; /* non-interactive midend for bulk puzzle generation */
int i;
fe->printcontext = context;
fe->cr = gtk_print_context_get_cairo_context(context);
/*
* Create our document structure and fill it up with puzzles.
*/
fe->doc = document_new(fe->printw, fe->printh, fe->printscale / 100.0F);
for (i = 0; i < fe->printcount; i++) {
const char *err;
if (i == 0) {
err = midend_print_puzzle(fe->me, fe->doc, fe->printsolns);
} else {
if (!nme) {
game_params *params;
nme = midend_new(NULL, &thegame, NULL, NULL);
/*
* Set the non-interactive mid-end to have the same
* parameters as the standard one.
*/
params = midend_get_params(fe->me);
midend_set_params(nme, params);
thegame.free_params(params);
}
load_prefs(fe);
midend_new_game(nme);
err = midend_print_puzzle(nme, fe->doc, fe->printsolns);
}
if (err) {
error_box(fe->window, err);
return;
}
}
if (nme)
midend_free(nme);
/* Begin the document. */
document_begin(fe->doc, fe->print_dr);
}
static void draw_page(GtkPrintOperation *printop,
GtkPrintContext *context,
gint page_nr, gpointer data)
{
frontend *fe = (frontend *)data;
document_print_page(fe->doc, fe->print_dr, page_nr);
}
static void print_end(GtkPrintOperation *printop,
GtkPrintContext *context, gpointer data)
{
frontend *fe = (frontend *)data;
/* End and free the document. */
document_end(fe->doc, fe->print_dr);
document_free(fe->doc);
fe->doc = NULL;
}
static void print_dialog(frontend *fe)
{
GError *error;
static GtkPrintSettings *settings = NULL;
static GtkPageSetup *page_setup = NULL;
#ifndef USE_EMBED_PAGE_SETUP
GtkPageSetup *new_page_setup;
#endif
fe->printop = gtk_print_operation_new();
gtk_print_operation_set_use_full_page(fe->printop, true);
gtk_print_operation_set_custom_tab_label(fe->printop, "Puzzle Settings");
g_signal_connect(fe->printop, "create-custom-widget",
G_CALLBACK(create_print_widget), fe);
g_signal_connect(fe->printop, "custom-widget-apply",
G_CALLBACK(apply_print_widget), fe);
g_signal_connect(fe->printop, "begin-print", G_CALLBACK(print_begin), fe);
g_signal_connect(fe->printop, "draw-page", G_CALLBACK(draw_page), fe);
g_signal_connect(fe->printop, "end-print", G_CALLBACK(print_end), fe);
#ifdef USE_EMBED_PAGE_SETUP
gtk_print_operation_set_embed_page_setup(fe->printop, true);
#else
if (page_setup == NULL) {
page_setup =
g_object_ref(
gtk_print_operation_get_default_page_setup(fe->printop));
}
if (settings == NULL) {
settings =
g_object_ref(gtk_print_operation_get_print_settings(fe->printop));
}
new_page_setup = gtk_print_run_page_setup_dialog(GTK_WINDOW(fe->window),
page_setup, settings);
g_object_unref(page_setup);
page_setup = new_page_setup;
gtk_print_operation_set_default_page_setup(fe->printop, page_setup);
#endif
if (settings != NULL)
gtk_print_operation_set_print_settings(fe->printop, settings);
if (page_setup != NULL)
gtk_print_operation_set_default_page_setup(fe->printop, page_setup);
switch (gtk_print_operation_run(fe->printop,
GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
GTK_WINDOW(fe->window), &error)) {
case GTK_PRINT_OPERATION_RESULT_ERROR:
error_box(fe->window, error->message);
g_error_free(error);
break;
case GTK_PRINT_OPERATION_RESULT_APPLY:
if (settings != NULL)
g_object_unref(settings);
settings =
g_object_ref(gtk_print_operation_get_print_settings(fe->printop));
#ifdef USE_EMBED_PAGE_SETUP
if (page_setup != NULL)
g_object_unref(page_setup);
page_setup =
g_object_ref(
gtk_print_operation_get_default_page_setup(fe->printop));
#endif
break;
default:
/* Don't error out on -Werror=switch. */
break;
}
g_object_unref(fe->printop);
fe->printop = NULL;
fe->printcontext = NULL;
}
#endif /* USE_PRINTING */
struct savefile_write_ctx {
FILE *fp;
int error;
};
static void savefile_write(void *wctx, const void *buf, int len)
{
struct savefile_write_ctx *ctx = (struct savefile_write_ctx *)wctx;
if (fwrite(buf, 1, len, ctx->fp) < len)
ctx->error = errno;
}
static bool savefile_read(void *wctx, void *buf, int len)
{
FILE *fp = (FILE *)wctx;
int ret;
ret = fread(buf, 1, len, fp);
return (ret == len);
}
static void menu_save_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
char *name;
name = file_selector(fe, "Enter name of game file to save", true);
if (name) {
FILE *fp;
if ((fp = fopen(name, "r")) != NULL) {
char buf[256 + FILENAME_MAX];
fclose(fp);
/* file exists */
sprintf(buf, "Are you sure you want to overwrite the"
" file \"%.*s\"?",
FILENAME_MAX, name);
if (!message_box(fe->window, "Question", buf, true, MB_YESNO))
goto free_and_return;
}
fp = fopen(name, "w");
if (!fp) {
error_box(fe->window, "Unable to open save file");
goto free_and_return;
}
{
struct savefile_write_ctx ctx;
ctx.fp = fp;
ctx.error = 0;
midend_serialise(fe->me, savefile_write, &ctx);
fclose(fp);
if (ctx.error) {
char boxmsg[512];
sprintf(boxmsg, "Error writing save file: %.400s",
strerror(ctx.error));
error_box(fe->window, boxmsg);
goto free_and_return;
}
}
free_and_return:
sfree(name);
}
}
static void menu_load_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
char *name;
const char *err;
name = file_selector(fe, "Enter name of saved game file to load", false);
if (name) {
FILE *fp = fopen(name, "r");
sfree(name);
if (!fp) {
error_box(fe->window, "Unable to open saved game file");
return;
}
err = midend_deserialise(fe->me, savefile_read, fp);
fclose(fp);
if (err) {
error_box(fe->window, err);
return;
}
changed_preset(fe);
resize_fe(fe);
midend_redraw(fe->me);
}
}
static char *prefs_dir(void)
{
const char *var;
if ((var = getenv("SGT_PUZZLES_DIR")) != NULL)
return dupstr(var);
if ((var = getenv("XDG_CONFIG_HOME")) != NULL) {
size_t size = strlen(var) + 20;
char *dir = snewn(size, char);
sprintf(dir, "%s/sgt-puzzles", var);
return dir;
}
if ((var = getenv("HOME")) != NULL) {
size_t size = strlen(var) + 32;
char *dir = snewn(size, char);
sprintf(dir, "%s/.config/sgt-puzzles", var);
return dir;
}
return NULL;
}
static char *prefs_path_general(const game *game, const char *suffix)
{
char *dir, *path;
dir = prefs_dir();
if (!dir)
return NULL;
path = make_prefs_path(dir, "/", game, suffix);
sfree(dir);
return path;
}
static char *prefs_path(const game *game)
{
return prefs_path_general(game, ".conf");
}
static char *prefs_tmp_path(const game *game)
{
return prefs_path_general(game, ".conf.tmp");
}
static void load_prefs(frontend *fe)
{
const game *game = midend_which_game(fe->me);
char *path = prefs_path(game);
if (!path)
return;
FILE *fp = fopen(path, "r");
if (!fp)
return;
const char *err = midend_load_prefs(fe->me, savefile_read, fp);
fclose(fp);
if (err)
fprintf(stderr, "Unable to load preferences file %s:\n%s\n",
path, err);
sfree(path);
}
static char *save_prefs(frontend *fe)
{
const game *game = midend_which_game(fe->me);
char *dir_path = prefs_dir();
char *file_path = prefs_path(game);
char *tmp_path = prefs_tmp_path(game);
struct savefile_write_ctx wctx[1];
int fd;
bool cleanup_dir = false, cleanup_tmpfile = false;
char *err = NULL;
if (!dir_path || !file_path || !tmp_path) {
sprintf(err = snewn(256, char),
"Unable to save preferences:\n"
"Could not determine pathname for configuration files");
goto out;
}
if (mkdir(dir_path, 0777) < 0) {
/* Ignore errors while trying to make the directory. It may
* well already exist, and even if we got some error code
* other than EEXIST, it's still worth at least _trying_ to
* make the file inside it, and see if that goes wrong. */
} else {
cleanup_dir = true;
}
fd = open(tmp_path, O_CREAT | O_WRONLY | O_TRUNC | O_EXCL, 0666);
if (fd < 0) {
const char *os_err = strerror(errno);
sprintf(err = snewn(256 + strlen(tmp_path) + strlen(os_err), char),
"Unable to save preferences:\n"
"Unable to create file '%s': %s", tmp_path, os_err);
goto out;
} else {
cleanup_tmpfile = true;
}
wctx->error = 0;
wctx->fp = fdopen(fd, "w");
midend_save_prefs(fe->me, savefile_write, wctx);
fclose(wctx->fp);
if (wctx->error) {
const char *os_err = strerror(wctx->error);
sprintf(err = snewn(80 + strlen(tmp_path) + strlen(os_err), char),
"Unable to write file '%s': %s", tmp_path, os_err);
goto out;
}
if (rename(tmp_path, file_path) < 0) {
const char *os_err = strerror(errno);
sprintf(err = snewn(256 + strlen(tmp_path) + strlen(file_path) +
strlen(os_err), char),
"Unable to save preferences:\n"
"Unable to rename '%s' to '%s': %s", tmp_path, file_path,
os_err);
goto out;
} else {
cleanup_dir = false;
cleanup_tmpfile = false;
}
out:
if (cleanup_tmpfile) {
if (unlink(tmp_path) < 0) { /* can't do anything about this */ }
}
if (cleanup_dir) {
if (rmdir(dir_path) < 0) { /* can't do anything about this */ }
}
sfree(dir_path);
sfree(file_path);
sfree(tmp_path);
return err;
}
static bool delete_prefs(const game *game, char **msg)
{
char *dir_path = prefs_dir();
char *file_path = prefs_path(game);
char *tmp_path = prefs_tmp_path(game);
char *msgs[3];
int i, len, nmsgs = 0;
char *p;
bool ok = true;
if (unlink(file_path) == 0) {
sprintf(msgs[nmsgs++] = snewn(256 + strlen(file_path), char),
"Removed preferences file %s\n", file_path);
} else if (errno != ENOENT) {
const char *os_err = strerror(errno);
sprintf(msgs[nmsgs++] = snewn(256 + strlen(file_path) + strlen(os_err),
char),
"Failed to remove preferences file %s: %s\n",
file_path, os_err);
ok = false;
}
if (unlink(tmp_path) == 0) {
sprintf(msgs[nmsgs++] = snewn(256 + strlen(tmp_path), char),
"Removed temporary file %s\n", tmp_path);
} else if (errno != ENOENT) {
const char *os_err = strerror(errno);
sprintf(msgs[nmsgs++] = snewn(256 + strlen(tmp_path) + strlen(os_err),
char),
"Failed to remove temporary file %s: %s\n", tmp_path, os_err);
ok = false;
}
if (rmdir(dir_path) == 0) {
sprintf(msgs[nmsgs++] = snewn(256 + strlen(dir_path), char),
"Removed empty preferences directory %s\n", dir_path);
} else if (errno != ENOENT && errno != ENOTEMPTY) {
const char *os_err = strerror(errno);
sprintf(msgs[nmsgs++] = snewn(256 + strlen(dir_path) + strlen(os_err),
char),
"Failed to remove preferences directory %s: %s\n",
dir_path, os_err);
ok = false;
}
for (i = len = 0; i < nmsgs; i++)
len += strlen(msgs[i]);
*msg = snewn(len + 1, char);
p = *msg;
for (i = len = 0; i < nmsgs; i++) {
size_t len = strlen(msgs[i]);
memcpy(p, msgs[i], len);
p += len;
sfree(msgs[i]);
}
*p = '\0';
sfree(dir_path);
sfree(file_path);
sfree(tmp_path);
return ok;
}
#ifdef USE_PRINTING
static void menu_print_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
print_dialog(fe);
}
#endif
static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
const char *msg;
msg = midend_solve(fe->me);
if (msg)
error_box(fe->window, msg);
}
static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
midend_restart_game(fe->me);
}
static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
int which = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(menuitem),
"user-data"));
if (fe->preset_threaded ||
(GTK_IS_CHECK_MENU_ITEM(menuitem) &&
!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem))))
return;
changed_preset(fe); /* Put the old preset back! */
if (!get_config(fe, which))
return;
if (which != CFG_PREFS)
midend_new_game(fe->me);
resize_fe(fe);
midend_redraw(fe->me);
}
#ifndef HELP_BROWSER_PATH
#define HELP_BROWSER_PATH "xdg-open:sensible-browser:$BROWSER"
#endif
static bool try_show_help(const char *browser, const char *help_name)
{
const char *argv[3] = { browser, help_name, NULL };
return g_spawn_async(NULL, (char **)argv, NULL,
G_SPAWN_SEARCH_PATH,
NULL, NULL, NULL, NULL);
}
static void show_help(frontend *fe, const char *topic)
{
char *path = dupstr(HELP_BROWSER_PATH);
char *path_entry;
char *help_name;
size_t help_name_size;
bool succeeded = true;
help_name_size = strlen(HELP_DIR) + 4 + strlen(topic) + 6;
help_name = snewn(help_name_size, char);
sprintf(help_name, "%s/en/%s.html",
HELP_DIR, topic);
if (access(help_name, R_OK)) {
error_box(fe->window, "Help file is not installed");
sfree(path);
sfree(help_name);
return;
}
path_entry = path;
for (;;) {
size_t len;
bool last;
len = strcspn(path_entry, ":");
last = path_entry[len] == 0;
path_entry[len] = 0;
if (path_entry[0] == '$') {
const char *command = getenv(path_entry + 1);
if (command)
succeeded = try_show_help(command, help_name);
} else {
succeeded = try_show_help(path_entry, help_name);
}
if (last || succeeded)
break;
path_entry += len + 1;
}
if (!succeeded)
error_box(fe->window, "Failed to start a help browser");
sfree(path);
sfree(help_name);
}
static void menu_help_contents_event(GtkMenuItem *menuitem, gpointer data)
{
show_help((frontend *)data, "index");
}
static void menu_help_specific_event(GtkMenuItem *menuitem, gpointer data)
{
show_help((frontend *)data, thegame.htmlhelp_topic);
}
static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
#if GTK_CHECK_VERSION(3,0,0)
# define ABOUT_PARAMS \
"program-name", thegame.name, \
"version", ver, \
"comments", "Part of Simon Tatham's Portable Puzzle Collection"
if (n_xpm_icons) {
GdkPixbuf *icon = gdk_pixbuf_new_from_xpm_data
((const gchar **)xpm_icons[0]);
gtk_show_about_dialog
(GTK_WINDOW(fe->window),
ABOUT_PARAMS,
"logo", icon,
(const gchar *)NULL);
g_object_unref(G_OBJECT(icon));
}
else {
gtk_show_about_dialog
(GTK_WINDOW(fe->window),
ABOUT_PARAMS,
(const gchar *)NULL);
}
#else
char titlebuf[256];
char textbuf[1024];
sprintf(titlebuf, "About %.200s", thegame.name);
sprintf(textbuf,
"%.200s\n\n"
"from Simon Tatham's Portable Puzzle Collection\n\n"
"%.500s", thegame.name, ver);
message_box(fe->window, titlebuf, textbuf, true, MB_OK);
#endif
}
static GtkWidget *add_menu_ui_item(
frontend *fe, GtkContainer *cont, const char *text, int action,
int accel_key, int accel_keyqual)
{
GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
gtk_container_add(cont, menuitem);
g_object_set_data(G_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(action));
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_key_event), fe);
if (accel_key) {
/*
* Display a keyboard accelerator alongside this menu item.
* Actually this won't be processed via the usual GTK
* accelerator system, because we add it to a dummy
* accelerator group which is never actually activated on the
* main window; this permits back ends to override special
* keys like 'n' and 'r' and 'u' in some UI states. So
* whatever keystroke we display here will still go to
* key_event and be handled in the normal way.
*/
gtk_widget_add_accelerator(menuitem,
"activate", fe->dummy_accelgroup,
accel_key, accel_keyqual,
GTK_ACCEL_VISIBLE | GTK_ACCEL_LOCKED);
}
gtk_widget_show(menuitem);
return menuitem;
}
static void add_menu_separator(GtkContainer *cont)
{
GtkWidget *menuitem = gtk_menu_item_new();
gtk_container_add(cont, menuitem);
gtk_widget_show(menuitem);
}
static void populate_gtk_preset_menu(frontend *fe, struct preset_menu *menu,
GtkWidget *gtkmenu)
{
int i;
for (i = 0; i < menu->n_entries; i++) {
struct preset_menu_entry *entry = &menu->entries[i];
GtkWidget *menuitem;
if (entry->params) {
menuitem = gtk_radio_menu_item_new_with_label(
fe->preset_radio, entry->title);
fe->preset_radio = gtk_radio_menu_item_get_group(
GTK_RADIO_MENU_ITEM(menuitem));
g_object_set_data(G_OBJECT(menuitem), "user-data", entry);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_preset_event), fe);
} else {
GtkWidget *submenu;
menuitem = gtk_menu_item_new_with_label(entry->title);
submenu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
populate_gtk_preset_menu(fe, entry->submenu, submenu);
}
gtk_container_add(GTK_CONTAINER(gtkmenu), menuitem);
gtk_widget_show(menuitem);
}
}
enum { ARG_EITHER, ARG_SAVE, ARG_ID }; /* for argtype */
static frontend *new_window(
char *arg, int argtype, char **error, bool headless)
{
frontend *fe;
#ifdef USE_PRINTING
frontend *print_fe = NULL;
#endif
GtkBox *vbox, *hbox;
GtkWidget *menu, *menuitem;
GList *iconlist;
int x, y, n;
char errbuf[1024];
struct preset_menu *preset_menu;
fe = snew(frontend);
memset(fe, 0, sizeof(frontend));
#ifndef USE_CAIRO
if (headless) {
fprintf(stderr, "headless mode not supported for non-Cairo drawing\n");
exit(1);
}
#else
fe->headless = headless;
fe->ps = 1; /* in headless mode, configure_area won't have set this */
#endif
fe->timer_active = false;
fe->timer_id = -1;
fe->me = midend_new(fe, &thegame, >k_drawing, fe);
load_prefs(fe);
fe->dr_api = &internal_drawing;
#ifdef USE_PRINTING
if (thegame.can_print) {
print_fe = snew(frontend);
memset(print_fe, 0, sizeof(frontend));
/* Defaults */
print_fe->printcount = print_fe->printw = print_fe->printh = 1;
print_fe->printscale = 100;
print_fe->printsolns = false;
print_fe->printcolour = thegame.can_print_in_colour;
/*
* We need to use the same midend as the main frontend because
* we need midend_print_puzzle() to be able to print the
* current puzzle.
*/
print_fe->me = fe->me;
print_fe->print_dr = drawing_new(>k_drawing, print_fe->me, print_fe);
print_fe->dr_api = &internal_printing;
}
#endif
if (arg) {
const char *err;
FILE *fp;
errbuf[0] = '\0';
switch (argtype) {
case ARG_ID:
err = midend_game_id(fe->me, arg);
if (!err)
midend_new_game(fe->me);
else
sprintf(errbuf, "Invalid game ID: %.800s", err);
break;
case ARG_SAVE:
fp = fopen(arg, "r");
if (!fp) {
sprintf(errbuf, "Error opening file: %.800s", strerror(errno));
} else {
err = midend_deserialise(fe->me, savefile_read, fp);
if (err)
sprintf(errbuf, "Invalid save file: %.800s", err);
fclose(fp);
}
break;
default /*case ARG_EITHER*/:
/*
* First try treating the argument as a game ID.
*/
err = midend_game_id(fe->me, arg);
if (!err) {
/*
* It's a valid game ID.
*/
midend_new_game(fe->me);
} else {
FILE *fp = fopen(arg, "r");
if (!fp) {
sprintf(errbuf, "Supplied argument is neither a game ID (%.400s)"
" nor a save file (%.400s)", err, strerror(errno));
} else {
err = midend_deserialise(fe->me, savefile_read, fp);
if (err)
sprintf(errbuf, "%.800s", err);
fclose(fp);
}
}
break;
}
if (*errbuf) {
*error = dupstr(errbuf);
midend_free(fe->me);
sfree(fe);
#ifdef USE_PRINTING
if (thegame.can_print) {
drawing_free(print_fe->print_dr);
sfree(print_fe);
}
#endif
return NULL;
}
} else {
midend_new_game(fe->me);
}
if (headless) {
snaffle_colours(fe);
get_size(fe, &fe->pw, &fe->ph);
setup_backing_store(fe);
return fe;
}
#if !GTK_CHECK_VERSION(3,0,0)
{
/*
* try_shrink_drawing_area() will do some fiddling with the
* window size request (see comment in that function) after
* all the bits and pieces such as the menu bar and status bar
* have appeared in the puzzle window.
*
* However, on Unity systems, the menu bar _doesn't_ appear in
* the puzzle window, because the Unity shell hijacks it into
* the menu bar at the very top of the screen. We therefore
* try to detect that situation here, so that we don't sit
* here forever waiting for a menu bar.
*/
const char prop[] = "gtk-shell-shows-menubar";
GtkSettings *settings = gtk_settings_get_default();
if (!g_object_class_find_property(G_OBJECT_GET_CLASS(settings),
prop)) {
fe->menubar_is_local = true;
} else {
int unity_mode;
g_object_get(gtk_settings_get_default(),
prop, &unity_mode,
(const gchar *)NULL);
fe->menubar_is_local = !unity_mode;
}
}
#endif
#if GTK_CHECK_VERSION(3,0,0)
fe->awaiting_resize_ack = false;
#endif
fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
vbox = GTK_BOX(gtk_vbox_new(false, 0));
gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
gtk_widget_show(GTK_WIDGET(vbox));
fe->dummy_accelgroup = gtk_accel_group_new();
/*
* Intentionally _not_ added to the window via
* gtk_window_add_accel_group; see menu_key_event
*/
hbox = GTK_BOX(gtk_hbox_new(false, 0));
gtk_box_pack_start(vbox, GTK_WIDGET(hbox), false, false, 0);
gtk_widget_show(GTK_WIDGET(hbox));
fe->menubar = gtk_menu_bar_new();
gtk_box_pack_start(hbox, fe->menubar, true, true, 0);
gtk_widget_show(fe->menubar);
menuitem = gtk_menu_item_new_with_mnemonic("_Game");
gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
gtk_widget_show(menuitem);
menu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
add_menu_ui_item(fe, GTK_CONTAINER(menu), "New", UI_NEWGAME, 'n', 0);
menuitem = gtk_menu_item_new_with_label("Restart");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_restart_event), fe);
gtk_widget_show(menuitem);
menuitem = gtk_menu_item_new_with_label("Specific...");
g_object_set_data(G_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(CFG_DESC));
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_config_event), fe);
gtk_widget_show(menuitem);
menuitem = gtk_menu_item_new_with_label("Random Seed...");
g_object_set_data(G_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(CFG_SEED));
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_config_event), fe);
gtk_widget_show(menuitem);
fe->preset_radio = NULL;
fe->preset_custom = NULL;
fe->preset_threaded = false;
preset_menu = midend_get_presets(fe->me, NULL);
if (preset_menu->n_entries > 0 || thegame.can_configure) {
GtkWidget *submenu;
menuitem = gtk_menu_item_new_with_mnemonic("_Type");
gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
gtk_widget_show(menuitem);
submenu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
populate_gtk_preset_menu(fe, preset_menu, submenu);
if (thegame.can_configure) {
menuitem = fe->preset_custom =
gtk_radio_menu_item_new_with_label(fe->preset_radio,
"Custom...");
fe->preset_radio =
gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(menuitem));
gtk_container_add(GTK_CONTAINER(submenu), menuitem);
g_object_set_data(G_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(CFG_SETTINGS));
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_config_event), fe);
gtk_widget_show(menuitem);
}
}
add_menu_separator(GTK_CONTAINER(menu));
menuitem = gtk_menu_item_new_with_label("Load...");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_load_event), fe);
gtk_widget_show(menuitem);
menuitem = gtk_menu_item_new_with_label("Save...");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_save_event), fe);
gtk_widget_show(menuitem);
#ifdef USE_PRINTING
if (thegame.can_print) {
add_menu_separator(GTK_CONTAINER(menu));
menuitem = gtk_menu_item_new_with_label("Print...");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_print_event), print_fe);
gtk_widget_show(menuitem);
}
#endif
#ifndef STYLUS_BASED
add_menu_separator(GTK_CONTAINER(menu));
add_menu_ui_item(fe, GTK_CONTAINER(menu), "Undo", UI_UNDO, 'u', 0);
add_menu_ui_item(fe, GTK_CONTAINER(menu), "Redo", UI_REDO, 'r', 0);
#endif
if (thegame.can_format_as_text_ever) {
add_menu_separator(GTK_CONTAINER(menu));
menuitem = gtk_menu_item_new_with_label("Copy");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_copy_event), fe);
gtk_widget_show(menuitem);
fe->copy_menu_item = menuitem;
} else {
fe->copy_menu_item = NULL;
}
if (thegame.can_solve) {
add_menu_separator(GTK_CONTAINER(menu));
menuitem = gtk_menu_item_new_with_label("Solve");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_solve_event), fe);
gtk_widget_show(menuitem);
}
add_menu_separator(GTK_CONTAINER(menu));
menuitem = gtk_menu_item_new_with_label("Preferences...");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_object_set_data(G_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(CFG_PREFS));
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_config_event), fe);
gtk_widget_show(menuitem);
add_menu_separator(GTK_CONTAINER(menu));
add_menu_ui_item(fe, GTK_CONTAINER(menu), "Exit", UI_QUIT, 'q', 0);
menuitem = gtk_menu_item_new_with_mnemonic("_Help");
gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
gtk_widget_show(menuitem);
menu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
menuitem = gtk_menu_item_new_with_label("Contents");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_help_contents_event), fe);
gtk_widget_show(menuitem);
if (thegame.htmlhelp_topic) {
char *item;
assert(thegame.name);
item = snewn(9 + strlen(thegame.name), char);
sprintf(item, "Help on %s", thegame.name);
menuitem = gtk_menu_item_new_with_label(item);
sfree(item);
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_help_specific_event), fe);
gtk_widget_show(menuitem);
}
menuitem = gtk_menu_item_new_with_label("About");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(menu_about_event), fe);
gtk_widget_show(menuitem);
#ifdef STYLUS_BASED
menuitem=gtk_button_new_with_mnemonic("_Redo");
g_object_set_data(G_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(UI_REDO));
g_signal_connect(G_OBJECT(menuitem), "clicked",
G_CALLBACK(menu_key_event), fe);
gtk_box_pack_end(hbox, menuitem, false, false, 0);
gtk_widget_show(menuitem);
menuitem=gtk_button_new_with_mnemonic("_Undo");
g_object_set_data(G_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(UI_UNDO));
g_signal_connect(G_OBJECT(menuitem), "clicked",
G_CALLBACK(menu_key_event), fe);
gtk_box_pack_end(hbox, menuitem, false, false, 0);
gtk_widget_show(menuitem);
if (thegame.flags & REQUIRE_NUMPAD) {
hbox = GTK_BOX(gtk_hbox_new(false, 0));
gtk_box_pack_start(vbox, GTK_WIDGET(hbox), false, false, 0);
gtk_widget_show(GTK_WIDGET(hbox));
*((int*)errbuf)=0;
errbuf[1]='\0';
for(errbuf[0]='0';errbuf[0]<='9';errbuf[0]++) {
menuitem=gtk_button_new_with_label(errbuf);
g_object_set_data(G_OBJECT(menuitem), "user-data",
GINT_TO_POINTER((int)(errbuf[0])));
g_signal_connect(G_OBJECT(menuitem), "clicked",
G_CALLBACK(menu_key_event), fe);
gtk_box_pack_start(hbox, menuitem, true, true, 0);
gtk_widget_show(menuitem);
}
}
#endif /* STYLUS_BASED */
changed_preset(fe);
snaffle_colours(fe);
if (midend_wants_statusbar(fe->me)) {
GtkWidget *viewport;
GtkRequisition req;
viewport = gtk_viewport_new(NULL, NULL);
gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
fe->statusbar = gtk_statusbar_new();
gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
gtk_widget_show(viewport);
gtk_box_pack_end(vbox, viewport, false, false, 0);
gtk_widget_show(fe->statusbar);
fe->statusctx = gtk_statusbar_get_context_id
(GTK_STATUSBAR(fe->statusbar), "game");
gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
DEFAULT_STATUSBAR_TEXT);
#if GTK_CHECK_VERSION(3,0,0)
gtk_widget_get_preferred_size(fe->statusbar, &req, NULL);
#else
gtk_widget_size_request(fe->statusbar, &req);
#endif
gtk_widget_set_size_request(viewport, -1, req.height);
} else
fe->statusbar = NULL;
fe->area = gtk_drawing_area_new();
#if GTK_CHECK_VERSION(2,0,0) && !GTK_CHECK_VERSION(3,0,0)
gtk_widget_set_double_buffered(fe->area, false);
#endif
{
GdkGeometry geom;
geom.base_width = 0;
#if GTK_CHECK_VERSION(3,0,0)
geom.base_height = window_extra_height(fe);
gtk_window_set_geometry_hints(GTK_WINDOW(fe->window), NULL,
&geom, GDK_HINT_BASE_SIZE);
#else
geom.base_height = 0;
gtk_window_set_geometry_hints(GTK_WINDOW(fe->window), fe->area,
&geom, GDK_HINT_BASE_SIZE);
#endif
}
fe->w = -1;
fe->h = -1;
get_size(fe, &x, &y);
#if GTK_CHECK_VERSION(3,0,0)
gtk_window_set_default_size(GTK_WINDOW(fe->window),
x, y + window_extra_height(fe));
#else
fe->drawing_area_shrink_pending = false;
gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
#endif
gtk_box_pack_end(vbox, fe->area, true, true, 0);
clear_backing_store(fe);
fe->fonts = NULL;
fe->nfonts = fe->fontsize = 0;
fe->paste_data = NULL;
fe->paste_data_len = 0;
g_signal_connect(G_OBJECT(fe->window), "destroy",
G_CALLBACK(destroy), fe);
g_signal_connect(G_OBJECT(fe->window), "key_press_event",
G_CALLBACK(key_event), fe);
g_signal_connect(G_OBJECT(fe->area), "button_press_event",
G_CALLBACK(button_event), fe);
g_signal_connect(G_OBJECT(fe->area), "button_release_event",
G_CALLBACK(button_event), fe);
g_signal_connect(G_OBJECT(fe->area), "motion_notify_event",
G_CALLBACK(motion_event), fe);
g_signal_connect(G_OBJECT(fe->window), "selection_get",
G_CALLBACK(selection_get), fe);
g_signal_connect(G_OBJECT(fe->window), "selection_clear_event",
G_CALLBACK(selection_clear), fe);
#if GTK_CHECK_VERSION(3,0,0)
g_signal_connect(G_OBJECT(fe->area), "draw",
G_CALLBACK(draw_area), fe);
#else
g_signal_connect(G_OBJECT(fe->area), "expose_event",
G_CALLBACK(expose_area), fe);
#endif
g_signal_connect(G_OBJECT(fe->window), "map_event",
G_CALLBACK(map_window), fe);
g_signal_connect(G_OBJECT(fe->area), "configure_event",
G_CALLBACK(configure_area), fe);
g_signal_connect(G_OBJECT(fe->window), "configure_event",
G_CALLBACK(configure_window), fe);
#if GTK_CHECK_VERSION(3,0,0)
g_signal_connect(G_OBJECT(fe->window), "size_allocate",
G_CALLBACK(window_size_alloc), fe);
#endif
gtk_widget_add_events(GTK_WIDGET(fe->area),
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK);
if (n_xpm_icons) {
gtk_window_set_icon(GTK_WINDOW(fe->window),
gdk_pixbuf_new_from_xpm_data
((const gchar **)xpm_icons[n_xpm_icons-1]));
iconlist = NULL;
for (n = 0; n < n_xpm_icons; n++) {
iconlist =
g_list_append(iconlist,
gdk_pixbuf_new_from_xpm_data((const gchar **)
xpm_icons[n]));
}
gtk_window_set_icon_list(GTK_WINDOW(fe->window), iconlist);
}
gtk_widget_show(fe->area);
gtk_widget_show(fe->window);
#if !GTK_CHECK_VERSION(3,0,0)
fe->drawing_area_shrink_pending = true;
try_shrink_drawing_area(fe);
#endif
set_window_background(fe, 0);
return fe;
}
static void list_presets_from_menu(struct preset_menu *menu)
{
int i;
for (i = 0; i < menu->n_entries; i++) {
if (menu->entries[i].params) {
char *paramstr = thegame.encode_params(
menu->entries[i].params, true);
printf("%s %s\n", paramstr, menu->entries[i].title);
sfree(paramstr);
} else {
list_presets_from_menu(menu->entries[i].submenu);
}
}
}
int main(int argc, char **argv)
{
char *pname = argv[0];
int ngenerate = 0, px = 1, py = 1;
bool print = false;
bool time_generation = false, test_solve = false, list_presets = false;
bool delete_prefs_action = false;
bool soln = false, colour = false;
float scale = 1.0F;
float redo_proportion = 0.0F;
const char *savefile = NULL, *savesuffix = NULL;
char *arg = NULL;
int argtype = ARG_EITHER;
char *screenshot_file = NULL;
bool doing_opts = true;
int ac = argc;
char **av = argv;
char errbuf[500];
/*
* Command line parsing in this function is rather fiddly,
* because GTK wants to have a go at argc/argv _first_ - and
* yet we can't let it, because gtk_init() will bomb out if it
* can't open an X display, whereas in fact we want to permit
* our --generate and --print modes to run without an X
* display.
*
* So what we do is:
* - we parse the command line ourselves, without modifying
* argc/argv
* - if we encounter an error which might plausibly be the
* result of a GTK command line (i.e. not detailed errors in
* particular options of ours) we store the error message
* and terminate parsing.
* - if we got enough out of the command line to know it
* specifies a non-X mode of operation, we either display
* the stored error and return failure, or if there is no
* stored error we do the non-X operation and return
* success.
* - otherwise, we go straight to gtk_init().
*/
errbuf[0] = '\0';
while (--ac > 0) {
char *p = *++av;
if (doing_opts && !strcmp(p, "--version")) {
printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
thegame.name, ver);
return 0;
} else if (doing_opts && !strcmp(p, "--generate")) {
if (--ac > 0) {
ngenerate = atoi(*++av);
if (!ngenerate) {
fprintf(stderr, "%s: '--generate' expected a number\n",
pname);
return 1;
}
} else
ngenerate = 1;
} else if (doing_opts && !strcmp(p, "--time-generation")) {
time_generation = true;
} else if (doing_opts && !strcmp(p, "--test-solve")) {
test_solve = true;
} else if (doing_opts && !strcmp(p, "--list-presets")) {
list_presets = true;
} else if (doing_opts && (!strcmp(p, "--delete-prefs") ||
!strcmp(p, "--delete-preferences"))) {
delete_prefs_action = true;
} else if (doing_opts && !strcmp(p, "--save")) {
if (--ac > 0) {
savefile = *++av;
} else {
fprintf(stderr, "%s: '--save' expected a filename\n",
pname);
return 1;
}
} else if (doing_opts && (!strcmp(p, "--save-suffix") ||
!strcmp(p, "--savesuffix"))) {
if (--ac > 0) {
savesuffix = *++av;
} else {
fprintf(stderr, "%s: '--save-suffix' expected a filename\n",
pname);
return 1;
}
} else if (doing_opts && !strcmp(p, "--print")) {
if (!thegame.can_print) {
fprintf(stderr, "%s: this game does not support printing\n",
pname);
return 1;
}
print = true;
if (--ac > 0) {
char *dim = *++av;
if (sscanf(dim, "%dx%d", &px, &py) != 2) {
fprintf(stderr, "%s: unable to parse argument '%s' to "
"'--print'\n", pname, dim);
return 1;
}
} else {
px = py = 1;
}
} else if (doing_opts && !strcmp(p, "--scale")) {
if (--ac > 0) {
scale = atof(*++av);
} else {
fprintf(stderr, "%s: no argument supplied to '--scale'\n",
pname);
return 1;
}
} else if (doing_opts && !strcmp(p, "--redo")) {
/*
* This is an internal option which I don't expect
* users to have any particular use for. The effect of
* --redo is that once the game has been loaded and
* initialised, the next move in the redo chain is
* replayed, and the game screen is redrawn part way
* through the making of the move. This is only
* meaningful if there _is_ a next move in the redo
* chain, which means in turn that this option is only
* useful if you're also passing a save file on the
* command line.
*
* This option is used by the script which generates
* the puzzle icons and website screenshots, and I
* don't imagine it's useful for anything else.
* (Unless, I suppose, users don't like my screenshots
* and want to generate their own in the same way for
* some repackaged version of the puzzles.)
*/
if (--ac > 0) {
redo_proportion = atof(*++av);
} else {
fprintf(stderr, "%s: no argument supplied to '--redo'\n",
pname);
return 1;
}
} else if (doing_opts && !strcmp(p, "--screenshot")) {
/*
* Another internal option for the icon building
* script. This causes a screenshot of the central
* drawing area (i.e. not including the menu bar or
* status bar) to be saved to a PNG file once the
* window has been drawn, and then the application
* quits immediately.
*/
if (--ac > 0) {
screenshot_file = *++av;
} else {
fprintf(stderr, "%s: no argument supplied to '--screenshot'\n",
pname);
return 1;
}
} else if (doing_opts && (!strcmp(p, "--with-solutions") ||
!strcmp(p, "--with-solution") ||
!strcmp(p, "--with-solns") ||
!strcmp(p, "--with-soln") ||
!strcmp(p, "--solutions") ||
!strcmp(p, "--solution") ||
!strcmp(p, "--solns") ||
!strcmp(p, "--soln"))) {
soln = true;
} else if (doing_opts && !strcmp(p, "--colour")) {
if (!thegame.can_print_in_colour) {
fprintf(stderr, "%s: this game does not support colour"
" printing\n", pname);
return 1;
}
colour = true;
} else if (doing_opts && !strcmp(p, "--load")) {
argtype = ARG_SAVE;
} else if (doing_opts && !strcmp(p, "--game")) {
argtype = ARG_ID;
} else if (doing_opts && !strcmp(p, "--")) {
doing_opts = false;
} else if (!doing_opts || p[0] != '-') {
if (arg) {
fprintf(stderr, "%s: more than one argument supplied\n",
pname);
return 1;
}
arg = p;
} else {
sprintf(errbuf, "%.100s: unrecognised option '%.100s'\n",
pname, p);
break;
}
}
/*
* Special standalone mode for generating puzzle IDs on the
* command line. Useful for generating puzzles to be printed
* out and solved offline (for puzzles where that even makes
* sense - Solo, for example, is a lot more pencil-and-paper
* friendly than Twiddle!)
*
* Usage:
*
* <puzzle-name> --generate [<n> [<params>]]
*
* <n>, if present, is the number of puzzle IDs to generate.
* <params>, if present, is the same type of parameter string
* you would pass to the puzzle when running it in GUI mode,
* including optional extras such as the expansion factor in
* Rectangles and the difficulty level in Solo.
*
* If you specify <params>, you must also specify <n> (although
* you may specify it to be 1). Sorry; that was the
* simplest-to-parse command-line syntax I came up with.
*/
if (ngenerate > 0 || print || savefile || savesuffix) {
int i, n = 1;
midend *me;
char *id;
document *doc = NULL;
/*
* If we're in this branch, we should display any pending
* error message from the command line, since GTK isn't going
* to take another crack at making sense of it.
*/
if (*errbuf) {
fputs(errbuf, stderr);
return 1;
}
n = ngenerate;
me = midend_new(NULL, &thegame, NULL, NULL);
i = 0;
if (savefile && !savesuffix)
savesuffix = "";
if (!savefile && savesuffix)
savefile = "";
if (print)
doc = document_new(px, py, scale);
/*
* In this loop, we either generate a game ID or read one
* from stdin depending on whether we're in generate mode;
* then we either write it to stdout or print it, depending
* on whether we're in print mode. Thus, this loop handles
* generate-to-stdout, print-from-stdin and generate-and-
* immediately-print modes.
*
* (It could also handle a copy-stdin-to-stdout mode,
* although there's currently no combination of options
* which will cause this loop to be activated in that mode.
* It wouldn't be _entirely_ pointless, though, because
* stdin could contain bare params strings or random-seed
* IDs, and stdout would contain nothing but fully
* generated descriptive game IDs.)
*/
while (ngenerate == 0 || i < n) {
char *pstr, *seed;
const char *err;
struct rusage before, after;
if (ngenerate == 0) {
pstr = fgetline(stdin);
if (!pstr)
break;
pstr[strcspn(pstr, "\r\n")] = '\0';
} else {
if (arg) {
pstr = snewn(strlen(arg) + 40, char);
strcpy(pstr, arg);
if (i > 0 && strchr(arg, '#'))
sprintf(pstr + strlen(pstr), "-%d", i);
} else
pstr = NULL;
}
if (pstr) {
err = midend_game_id(me, pstr);
if (err) {
fprintf(stderr, "%s: error parsing '%s': %s\n",
pname, pstr, err);
return 1;
}
}
if (time_generation)
getrusage(RUSAGE_SELF, &before);
midend_new_game(me);
seed = midend_get_random_seed(me);
if (time_generation) {
double elapsed;
getrusage(RUSAGE_SELF, &after);
elapsed = (after.ru_utime.tv_sec -
before.ru_utime.tv_sec);
elapsed += (after.ru_utime.tv_usec -
before.ru_utime.tv_usec) / 1000000.0;
printf("%s %s: %.6f\n", thegame.name, seed, elapsed);
}
if (test_solve && thegame.can_solve) {
/*
* Now destroy the aux_info in the midend, by means of
* re-entering the same game id, and then try to solve
* it.
*/
char *game_id;
game_id = midend_get_game_id(me);
err = midend_game_id(me, game_id);
if (err) {
fprintf(stderr, "%s %s: game id re-entry error: %s\n",
thegame.name, seed, err);
return 1;
}
midend_new_game(me);
sfree(game_id);
err = midend_solve(me);
/*
* If the solve operation returned the error "Solution
* not known for this puzzle", that's OK, because that
* just means it's a puzzle for which we don't have an
* algorithmic solver and hence can't solve it without
* the aux_info, e.g. Netslide. Any other error is a
* problem, though.
*/
if (err && strcmp(err, "Solution not known for this puzzle")) {
fprintf(stderr, "%s %s: solve error: %s\n",
thegame.name, seed, err);
return 1;
}
}
sfree(pstr);
sfree(seed);
if (doc) {
err = midend_print_puzzle(me, doc, soln);
if (err) {
fprintf(stderr, "%s: error in printing: %s\n", pname, err);
return 1;
}
}
if (savefile) {
struct savefile_write_ctx ctx;
char *realname = snewn(40 + strlen(savefile) +
strlen(savesuffix), char);
sprintf(realname, "%s%d%s", savefile, i, savesuffix);
if (soln) {
const char *err = midend_solve(me);
if (err) {
fprintf(stderr, "%s: unable to show solution: %s\n",
realname, err);
return 1;
}
}
ctx.fp = fopen(realname, "w");
if (!ctx.fp) {
fprintf(stderr, "%s: open: %s\n", realname,
strerror(errno));
return 1;
}
ctx.error = 0;
midend_serialise(me, savefile_write, &ctx);
if (ctx.error) {
fprintf(stderr, "%s: write: %s\n", realname,
strerror(ctx.error));
return 1;
}
if (fclose(ctx.fp)) {
fprintf(stderr, "%s: close: %s\n", realname,
strerror(errno));
return 1;
}
sfree(realname);
}
if (!doc && !savefile && !time_generation) {
id = midend_get_game_id(me);
puts(id);
sfree(id);
}
i++;
}
if (doc) {
psdata *ps = ps_init(stdout, colour);
document_print(doc, ps_drawing_api(ps));
document_free(doc);
ps_free(ps);
}
midend_free(me);
return 0;
} else if (list_presets) {
/*
* Another specialist mode which causes the puzzle to list the
* game_params strings for all its preset configurations.
*/
midend *me;
struct preset_menu *menu;
me = midend_new(NULL, &thegame, NULL, NULL);
menu = midend_get_presets(me, NULL);
list_presets_from_menu(menu);
midend_free(me);
return 0;
} else if (delete_prefs_action) {
char *msg = NULL;
bool ok = delete_prefs(&thegame, &msg);
if (!ok) {
fputs(msg, stderr);
return 1;
} else {
fputs(msg, stdout);
return 0;
}
} else {
frontend *fe;
bool headless = screenshot_file != NULL;
char *error = NULL;
if (!headless)
gtk_init(&argc, &argv);
fe = new_window(arg, argtype, &error, headless);
if (!fe) {
fprintf(stderr, "%s: %s\n", pname, error);
sfree(error);
return 1;
}
if (screenshot_file) {
/*
* Some puzzles will not redraw their entire area if
* given a partially completed animation, which means
* we must redraw now and _then_ redraw again after
* freezing the move timer.
*/
midend_force_redraw(fe->me);
}
if (redo_proportion) {
/* Start a redo. */
midend_process_key(fe->me, 0, 0, 'r');
/* And freeze the timer at the specified position. */
midend_freeze_timer(fe->me, redo_proportion);
}
if (screenshot_file) {
save_screenshot_png(fe, screenshot_file);
exit(0);
}
gtk_main();
}
return 0;
}