ref: bf5dc91f8d7bc2035effd18290c523050fa1b2cd
dir: /code/q3_ui/ui_mfield.c/
/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
//
#include "ui_local.h"
/*
===================
MField_Draw
Handles horizontal scrolling and cursor blinking
x, y, are in pixels
===================
*/
void MField_Draw( mfield_t *edit, int x, int y, int style, vec4_t color ) {
int len;
int charw;
int drawLen;
int prestep;
int cursorChar;
char str[MAX_STRING_CHARS];
drawLen = edit->widthInChars;
len = strlen( edit->buffer ) + 1;
// guarantee that cursor will be visible
if ( len <= drawLen ) {
prestep = 0;
} else {
if ( edit->scroll + drawLen > len ) {
edit->scroll = len - drawLen;
if ( edit->scroll < 0 ) {
edit->scroll = 0;
}
}
prestep = edit->scroll;
}
if ( prestep + drawLen > len ) {
drawLen = len - prestep;
}
// extract <drawLen> characters from the field at <prestep>
if ( drawLen >= MAX_STRING_CHARS ) {
trap_Error( "drawLen >= MAX_STRING_CHARS" );
}
memcpy( str, edit->buffer + prestep, drawLen );
str[ drawLen ] = 0;
UI_DrawString( x, y, str, style, color );
// draw the cursor
if (!(style & UI_PULSE)) {
return;
}
if ( trap_Key_GetOverstrikeMode() ) {
cursorChar = 11;
} else {
cursorChar = 10;
}
style &= ~UI_PULSE;
style |= UI_BLINK;
if (style & UI_SMALLFONT)
{
charw = SMALLCHAR_WIDTH;
}
else if (style & UI_GIANTFONT)
{
charw = GIANTCHAR_WIDTH;
}
else
{
charw = BIGCHAR_WIDTH;
}
if (style & UI_CENTER)
{
len = strlen(str);
x = x - len*charw/2;
}
else if (style & UI_RIGHT)
{
len = strlen(str);
x = x - len*charw;
}
UI_DrawChar( x + ( edit->cursor - prestep ) * charw, y, cursorChar, style & ~(UI_CENTER|UI_RIGHT), color );
}
/*
================
MField_Paste
================
*/
void MField_Paste( mfield_t *edit ) {
char pasteBuffer[64];
int pasteLen, i;
trap_GetClipboardData( pasteBuffer, 64 );
// send as if typed, so insert / overstrike works properly
pasteLen = strlen( pasteBuffer );
for ( i = 0 ; i < pasteLen ; i++ ) {
MField_CharEvent( edit, pasteBuffer[i] );
}
}
/*
=================
MField_KeyDownEvent
Performs the basic line editing functions for the console,
in-game talk, and menu fields
Key events are used for non-printable characters, others are gotten from char events.
=================
*/
void MField_KeyDownEvent( mfield_t *edit, int key ) {
int len;
// shift-insert is paste
if ( ( ( key == K_INS ) || ( key == K_KP_INS ) ) && trap_Key_IsDown( K_SHIFT ) ) {
MField_Paste( edit );
return;
}
len = strlen( edit->buffer );
if ( key == K_DEL || key == K_KP_DEL ) {
if ( edit->cursor < len ) {
memmove( edit->buffer + edit->cursor,
edit->buffer + edit->cursor + 1, len - edit->cursor );
}
return;
}
if ( key == K_RIGHTARROW || key == K_KP_RIGHTARROW )
{
if ( edit->cursor < len ) {
edit->cursor++;
}
if ( edit->cursor >= edit->scroll + edit->widthInChars && edit->cursor <= len )
{
edit->scroll++;
}
return;
}
if ( key == K_LEFTARROW || key == K_KP_LEFTARROW )
{
if ( edit->cursor > 0 ) {
edit->cursor--;
}
if ( edit->cursor < edit->scroll )
{
edit->scroll--;
}
return;
}
if ( key == K_HOME || key == K_KP_HOME || ( tolower(key) == 'a' && trap_Key_IsDown( K_CTRL ) ) ) {
edit->cursor = 0;
edit->scroll = 0;
return;
}
if ( key == K_END || key == K_KP_END || ( tolower(key) == 'e' && trap_Key_IsDown( K_CTRL ) ) ) {
edit->cursor = len;
edit->scroll = len - edit->widthInChars + 1;
if (edit->scroll < 0)
edit->scroll = 0;
return;
}
if ( key == K_INS || key == K_KP_INS ) {
trap_Key_SetOverstrikeMode( !trap_Key_GetOverstrikeMode() );
return;
}
}
/*
==================
MField_CharEvent
==================
*/
void MField_CharEvent( mfield_t *edit, int ch ) {
int len;
if ( ch == 'v' - 'a' + 1 ) { // ctrl-v is paste
MField_Paste( edit );
return;
}
if ( ch == 'c' - 'a' + 1 ) { // ctrl-c clears the field
MField_Clear( edit );
return;
}
len = strlen( edit->buffer );
if ( ch == 'h' - 'a' + 1 ) { // ctrl-h is backspace
if ( edit->cursor > 0 ) {
memmove( edit->buffer + edit->cursor - 1,
edit->buffer + edit->cursor, len + 1 - edit->cursor );
edit->cursor--;
if ( edit->cursor < edit->scroll )
{
edit->scroll--;
}
}
return;
}
if ( ch == 'a' - 'a' + 1 ) { // ctrl-a is home
edit->cursor = 0;
edit->scroll = 0;
return;
}
if ( ch == 'e' - 'a' + 1 ) { // ctrl-e is end
edit->cursor = len;
edit->scroll = edit->cursor - edit->widthInChars + 1;
if (edit->scroll < 0)
edit->scroll = 0;
return;
}
//
// ignore any other non printable chars
//
if ( ch < 32 ) {
return;
}
if ( !trap_Key_GetOverstrikeMode() ) {
if ((edit->cursor == MAX_EDIT_LINE - 1) || (edit->maxchars && edit->cursor >= edit->maxchars))
return;
} else {
// insert mode
if (( len == MAX_EDIT_LINE - 1 ) || (edit->maxchars && len >= edit->maxchars))
return;
memmove( edit->buffer + edit->cursor + 1, edit->buffer + edit->cursor, len + 1 - edit->cursor );
}
edit->buffer[edit->cursor] = ch;
if (!edit->maxchars || edit->cursor < edit->maxchars-1)
edit->cursor++;
if ( edit->cursor >= edit->widthInChars )
{
edit->scroll++;
}
if ( edit->cursor == len + 1) {
edit->buffer[edit->cursor] = 0;
}
}
/*
==================
MField_Clear
==================
*/
void MField_Clear( mfield_t *edit ) {
edit->buffer[0] = 0;
edit->cursor = 0;
edit->scroll = 0;
}
/*
==================
MenuField_Init
==================
*/
void MenuField_Init( menufield_s* m ) {
int l;
int w;
int h;
MField_Clear( &m->field );
if (m->generic.flags & QMF_SMALLFONT)
{
w = SMALLCHAR_WIDTH;
h = SMALLCHAR_HEIGHT;
}
else
{
w = BIGCHAR_WIDTH;
h = BIGCHAR_HEIGHT;
}
if (m->generic.name) {
l = (strlen( m->generic.name )+1) * w;
}
else {
l = 0;
}
m->generic.left = m->generic.x - l;
m->generic.top = m->generic.y;
m->generic.right = m->generic.x + w + m->field.widthInChars*w;
m->generic.bottom = m->generic.y + h;
}
/*
==================
MenuField_Draw
==================
*/
void MenuField_Draw( menufield_s *f )
{
int x;
int y;
int w;
int h;
int style;
qboolean focus;
float *color;
x = f->generic.x;
y = f->generic.y;
if (f->generic.flags & QMF_SMALLFONT)
{
w = SMALLCHAR_WIDTH;
h = SMALLCHAR_HEIGHT;
style = UI_SMALLFONT;
}
else
{
w = BIGCHAR_WIDTH;
h = BIGCHAR_HEIGHT;
style = UI_BIGFONT;
}
if (Menu_ItemAtCursor( f->generic.parent ) == f) {
focus = qtrue;
style |= UI_PULSE;
}
else {
focus = qfalse;
}
if (f->generic.flags & QMF_GRAYED)
color = text_color_disabled;
else if (focus)
color = text_color_highlight;
else
color = text_color_normal;
if ( focus )
{
// draw cursor
UI_FillRect( f->generic.left, f->generic.top, f->generic.right-f->generic.left+1, f->generic.bottom-f->generic.top+1, listbar_color );
UI_DrawChar( x, y, 13, UI_CENTER|UI_BLINK|style, color);
}
if ( f->generic.name ) {
UI_DrawString( x - w, y, f->generic.name, style|UI_RIGHT, color );
}
MField_Draw( &f->field, x + w, y, style, color );
}
/*
==================
MenuField_Key
==================
*/
sfxHandle_t MenuField_Key( menufield_s* m, int* key )
{
int keycode;
keycode = *key;
switch ( keycode )
{
case K_KP_ENTER:
case K_ENTER:
case K_JOY1:
case K_JOY2:
case K_JOY3:
case K_JOY4:
// have enter go to next cursor point
*key = K_TAB;
break;
case K_TAB:
case K_KP_DOWNARROW:
case K_DOWNARROW:
case K_KP_UPARROW:
case K_UPARROW:
break;
default:
if ( keycode & K_CHAR_FLAG )
{
keycode &= ~K_CHAR_FLAG;
if ((m->generic.flags & QMF_UPPERCASE) && Q_islower( keycode ))
keycode -= 'a' - 'A';
else if ((m->generic.flags & QMF_LOWERCASE) && Q_isupper( keycode ))
keycode -= 'A' - 'a';
else if ((m->generic.flags & QMF_NUMBERSONLY) && Q_isalpha( keycode ))
return (menu_buzz_sound);
MField_CharEvent( &m->field, keycode);
}
else
MField_KeyDownEvent( &m->field, keycode );
break;
}
return (0);
}