ref: c951f1864a755bb827da3031c03d9578b648b7a6
dir: neindaw/microui/demo/frame.c
#include <u.h>
#include <libc.h>
#include <draw.h>
#include <microui.h>
static char logbuf[64000];
static int logbuf_updated = 0;
static void
write_log(const char *text)
{
if (logbuf[0])
strcat(logbuf, "\n");
strcat(logbuf, text);
logbuf_updated = 1;
}
#define text_width(s) (stringwidth(mu_style.font, s) + 6)
#define text_height() mu_style.font->height
#define max(a, b) ((a) > (b) ? (a) : (b))
static void
test_window(void)
{
static mu_Container window;
/* init window manually so we can set its position and size */
if (!window.inited) {
mu_init_window(&window, 0);
window.rect = mu_rect(40, 40, 320, 500);
}
/* limit window to minimum size */
window.rect.w = max(window.rect.w, 240);
window.rect.h = max(window.rect.h, 300);
/* do window */
if (mu_begin_window(&window, "Demo Window")) {
/* window info */
static int show_info = 0;
if (mu_header(&show_info, "Window Info")) {
char buf[64];
const int widths[] = { text_width("Position:"), -1 };
mu_layout_row(2, widths, 0);
mu_label("Position:");
sprint(buf, "%d, %d", window.rect.x, window.rect.y); mu_label(buf);
mu_label("Size:");
sprint(buf, "%d, %d", window.rect.w, window.rect.h); mu_label(buf);
}
/* labels + buttons */
static int show_buttons = 1;
if (mu_header(&show_buttons, "Test Buttons")) {
const int widths[] = { text_width("Test buttons 2:"), -text_width("Button 2 "), -1 };
mu_layout_row(3, widths, 0);
mu_label("Test buttons 1:");
if (mu_button("Button 1")) { write_log("Pressed button 1"); }
if (mu_button("Button 2")) { write_log("Pressed button 2"); }
mu_label("Test buttons 2:");
if (mu_button("Button 3")) { write_log("Pressed button 3"); }
if (mu_button("Button 4")) { write_log("Pressed button 4"); }
}
/* tree */
static int show_tree = 1;
if (mu_header(&show_tree, "Tree and Text")) {
int widths[] = { text_width("Test 1a")+text_height()*2+text_width("Button 3")+6, -1 };
mu_layout_row(2, widths, 0);
mu_layout_begin_column();
static int states[8];
if (mu_begin_treenode(&states[0], "Test 1")) {
if (mu_begin_treenode(&states[1], "Test 1a")) {
mu_label("Hello");
mu_label("world");
mu_end_treenode();
}
if (mu_begin_treenode(&states[2], "Test 1b")) {
if (mu_button("Button 1")) { write_log("Pressed button 1"); }
if (mu_button("Button 2")) { write_log("Pressed button 2"); }
mu_end_treenode();
}
mu_end_treenode();
}
if (mu_begin_treenode(&states[3], "Test 2")) {
int widths[2];
widths[0] = widths[1] = text_width("Button 3");
mu_layout_row(2, widths, 0);
if (mu_button("Button 3")) { write_log("Pressed button 3"); }
if (mu_button("Button 4")) { write_log("Pressed button 4"); }
if (mu_button("Button 5")) { write_log("Pressed button 5"); }
if (mu_button("Button 6")) { write_log("Pressed button 6"); }
mu_end_treenode();
}
if (mu_begin_treenode(&states[4], "Test 3")) {
static int checks[3] = { 1, 0, 1 };
mu_checkbox(&checks[0], "Checkbox 1");
mu_checkbox(&checks[1], "Checkbox 2");
mu_checkbox(&checks[2], "Checkbox 3");
mu_end_treenode();
}
mu_layout_end_column();
mu_layout_begin_column();
widths[0] = -1;
mu_layout_row(1, widths, 0);
mu_text("Lorem ipsum dolor sit amet, consectetur adipiscing "
"elit. Maecenas lacinia, sem eu lacinia molestie, mi risus faucibus "
"ipsum, eu varius magna felis a nulla.");
mu_layout_end_column();
}
mu_end_window();
}
}
static void
log_window(void)
{
static mu_Container window;
/* init window manually so we can set its position and size */
if (!window.inited) {
mu_init_window(&window, 0);
window.rect = mu_rect(370, 40, 340, 200);
}
if (mu_begin_window(&window, "Log Window")) {
int widths[] = { -1, -1 };
/* output text panel */
static mu_Container panel;
mu_layout_row(1, widths, -28);
mu_begin_panel(&panel);
mu_layout_row(1, widths, -1);
mu_text(logbuf);
mu_end_panel();
if (logbuf_updated) {
panel.scroll.y = panel.content_size.y;
logbuf_updated = 0;
}
/* input textbox + submit button */
static char buf[128];
int submitted = 0;
widths[0] = -text_width("Submit")-8;
mu_layout_row(2, widths, -1);
if (mu_textbox(buf, sizeof(buf)) & MU_RES_SUBMIT) {
mu_set_focus(mu_ctx.last_id);
submitted = 1;
}
if (mu_button("Submit")) { submitted = 1; }
if (submitted) {
write_log(buf);
buf[0] = '\0';
}
mu_end_window();
}
}
static int
uint8_slider(unsigned char *value, int low, int high)
{
static double tmp;
mu_push_id(&value, sizeof(value));
tmp = *value;
int res = mu_slider_ex(&tmp, low, high, 0, "%.0f", MU_OPT_ALIGNCENTER);
*value = tmp;
mu_pop_id();
return res;
}
static void
style_window(void)
{
static mu_Container window;
static u8int cur[MU_COLOR_MAX][4], old[MU_COLOR_MAX][4];
static struct { const char *label; int idx; } colors[] = {
{ "background:", MU_COLOR_BG },
{ "text:", MU_COLOR_TEXT },
{ "border:", MU_COLOR_BORDER },
{ "windowbg:", MU_COLOR_WINDOWBG },
{ "titlebg:", MU_COLOR_TITLEBG },
{ "titletext:", MU_COLOR_TITLETEXT },
{ "panelbg:", MU_COLOR_PANELBG },
{ "button:", MU_COLOR_BUTTON },
{ "buttonhover:", MU_COLOR_BUTTONHOVER },
{ "buttonfocus:", MU_COLOR_BUTTONFOCUS },
{ "base:", MU_COLOR_BASE },
{ "basehover:", MU_COLOR_BASEHOVER },
{ "basefocus:", MU_COLOR_BASEFOCUS },
{ "scrollbase:", MU_COLOR_SCROLLBASE },
{ "scrollthumb:", MU_COLOR_SCROLLTHUMB },
{ nil }
};
/* init window manually so we can set its position and size */
if (!window.inited) {
mu_init_window(&window, 0);
window.rect = mu_rect(370, 250, 340, 290);
memmove(cur, defaultcolors, sizeof(cur));
memmove(old, defaultcolors, sizeof(old));
}
if (mu_begin_window(&window, "Style Editor")) {
int sw = max(text_width("255"), mu_get_container()->body.w * 0.14);
const int widths[] = { text_width("scrollthumb:"), sw, sw, sw, sw, -1 };
mu_layout_row(6, widths, 0);
for (int i = 0; colors[i].label; i++) {
mu_label(colors[i].label);
uint8_slider(&cur[i][0], 0, 255);
uint8_slider(&cur[i][1], 0, 255);
uint8_slider(&cur[i][2], 0, 255);
uint8_slider(&cur[i][3], 0, 255);
if (memcmp(cur[i], old[i], 4) != 0) {
freeimage(mu_style.colors[i]);
mu_style.colors[i] = mu_color(cur[i][0], cur[i][1], cur[i][2], cur[i][3]);
memmove(old[i], cur[i], 4);
}
mu_draw_rect(mu_layout_next(), mu_style.colors[i]);
}
mu_end_window();
}
}
void
process_frame(void)
{
mu_begin();
test_window();
log_window();
style_window();
mu_end();
}