Renamed existing lbreakout2 to prevent misunderstangdings, fixed download data in LTris and LMarbles
This commit is contained in:
pelya
539
project/jni/application/lbreakout2-hwaccel/gui/gui_edit.c
Normal file
539
project/jni/application/lbreakout2-hwaccel/gui/gui_edit.c
Normal file
@@ -0,0 +1,539 @@
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/***************************************************************************
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gui_edit.c - description
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-------------------
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begin : Wed Oct 16 2002
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copyright : (C) 2002 by Michael Speck
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email : kulkanie@gmx.net
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <stdlib.h>
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#include <string.h>
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#include "gui_widget.h"
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#include "gui_edit.h"
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extern GuiTheme *gui_theme;
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extern SDL_Surface *stk_display;
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extern GuiWidget *gui_key_widget;
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/*
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====================================================================
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LOCALS
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====================================================================
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*/
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/*
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====================================================================
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Global edit variables that are used by the focused widget and
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are global as there is only one keyboard they can be related
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with.
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====================================================================
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*/
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static int gui_edit_blink_time = 0; /* used to toggle gui_edit_blink
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twice a second */
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static int gui_edit_blink = 0; /* if true a cursor is displayed at
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the edit position */
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static int gui_edit_delay = 0;
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static int gui_edit_interval = 0; /* after a delay of 300 ms the
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keyevent is repeated at an interval of 100 */
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static int gui_edit_keysym = -1; /* last pressed keysym */
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static int gui_edit_unicode = -1; /* last pressed unicode */
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/* FORWARDED */
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static void gui_edit_handle_key(
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GuiWidget *widget, int keysym, int unicode );
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static int gui_edit_adjust_cursor( GuiWidget *widget, int offset );
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/*
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====================================================================
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Default event handler
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====================================================================
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*/
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static void default_event_handler(
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GuiWidget *widget, GuiEvent *event )
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{
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char *ptr;
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int px, py, i;
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switch ( event->type ) {
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case GUI_DESTROY:
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if ( widget->spec.edit.buffer )
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free( widget->spec.edit.buffer );
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if ( widget->spec.edit.display_buffer )
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free( widget->spec.edit.display_buffer );
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break;
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case GUI_DRAW:
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/* display surface */
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stk_surface_blit(
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widget->surface, 0, 0, -1, -1,
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stk_display,
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widget->screen_region.x,
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widget->screen_region.y );
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/* add text */
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gui_theme->edit_font->align = STK_FONT_ALIGN_LEFT;
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ptr = widget->spec.edit.display_buffer;
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px = widget->screen_region.x + widget->border;
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py = widget->screen_region.y + widget->border +
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widget->spec.edit.y_offset;
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for ( i = 0; i < widget->spec.edit.height;
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i++, py += gui_theme->edit_font->height,
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ptr += widget->spec.edit.width + 1 )
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stk_font_write( gui_theme->edit_font,
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stk_display, px, py, -1, ptr );
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/* add cursor */
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if ( widget == gui_key_widget || widget->focused )
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if ( gui_edit_blink )
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stk_surface_fill( stk_display,
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px + widget->spec.edit.x *
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gui_theme->edit_font->width,
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widget->screen_region.y +
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widget->border + widget->spec.edit.y_offset +
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widget->spec.edit.y *
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gui_theme->edit_font->height,
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1, gui_theme->edit_font->height,
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0xffffff );
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break;
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case GUI_KEY_PRESSED:
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if ( gui_edit_keysym != event->key.keysym ) {
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gui_edit_delay = 250;
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gui_edit_handle_key( widget,
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event->key.keysym,
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event->key.unicode );
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//stk_sound_play( gui_theme->type_sound );
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}
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break;
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case GUI_KEY_RELEASED:
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gui_edit_keysym = -1;
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break;
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case GUI_FOCUS_OUT:
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gui_edit_blink = 0;
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gui_widget_draw( widget );
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break;
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case GUI_CLICKED:
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stk_sound_play( gui_theme->click_sound );
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px = event->button.x - widget->screen_region.x -
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widget->border;
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py = event->button.y - widget->screen_region.y -
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widget->border - widget->spec.edit.y_offset;
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gui_edit_adjust_cursor( widget,
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(py / gui_theme->edit_font->height) *
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widget->spec.edit.width +
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(px / gui_theme->edit_font->width) +
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widget->spec.edit.start - widget->spec.edit.pos + 1 );
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gui_edit_blink = 1;
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gui_edit_blink_time = 0;
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gui_widget_draw( widget );
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break;
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}
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}
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/*
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====================================================================
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Render the display buffer from the edit string and the first
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character displayed of it. No screen update.
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====================================================================
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*/
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static void gui_edit_update_display_buffer( GuiWidget *widget )
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{
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int i, length, left;
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char *src, *dest;
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memset( widget->spec.edit.display_buffer, 0,
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(widget->spec.edit.width+1) * widget->spec.edit.height *
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sizeof( char ) );
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if ( widget->spec.edit.multi_line ) {
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src = widget->spec.edit.buffer + widget->spec.edit.start;
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left = strlen( src );
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dest = widget->spec.edit.display_buffer;
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for ( i = 0; i < widget->spec.edit.height; i++ ) {
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length = widget->spec.edit.width;
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if ( length > left )
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length = left;
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strncpy( dest, src, length );
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dest += widget->spec.edit.width + 1;
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src += length;
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left -= length;
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if ( left == 0 )
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break;
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}
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}
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else {
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strncpy( widget->spec.edit.display_buffer,
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widget->spec.edit.buffer + widget->spec.edit.start,
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widget->spec.edit.width );
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}
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}
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/*
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====================================================================
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Adjust edit cursor position by offset and return True
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if the display buffer has changed. Do not update display.
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====================================================================
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*/
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static int gui_edit_adjust_cursor( GuiWidget *widget, int offset )
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{
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int new_y, changed = 0;
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/* adjust position */
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widget->spec.edit.pos += offset;
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if ( widget->spec.edit.pos < 0 ) widget->spec.edit.pos = 0;
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if ( widget->spec.edit.pos > widget->spec.edit.length )
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widget->spec.edit.pos = widget->spec.edit.length;
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/* don't blink cursor while moving */
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gui_edit_blink_time = 0;
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/* update display position */
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if ( widget->spec.edit.multi_line ) {
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new_y = widget->spec.edit.pos / widget->spec.edit.width;
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/* if this position is out of screen modify 'line'
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and 'start' */
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if ( new_y < widget->spec.edit.line ||
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new_y >= widget->spec.edit.line + widget->spec.edit.height ) {
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if ( new_y < widget->spec.edit.line )
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widget->spec.edit.line = new_y;
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else
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widget->spec.edit.line = new_y - widget->spec.edit.height + 1;
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widget->spec.edit.start =
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widget->spec.edit.line * widget->spec.edit.width;
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/* update the display buffer */
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gui_edit_update_display_buffer( widget );
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changed = 1;
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}
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widget->spec.edit.x =
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widget->spec.edit.pos % widget->spec.edit.width;
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widget->spec.edit.y = new_y - widget->spec.edit.line;
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}
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else {
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if ( widget->spec.edit.pos < widget->spec.edit.start ) {
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widget->spec.edit.start = widget->spec.edit.pos;
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widget->spec.edit.x = 0;
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/* update the display buffer */
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gui_edit_update_display_buffer( widget );
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changed = 1;
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}
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else
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if ( widget->spec.edit.pos >=
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widget->spec.edit.start + widget->spec.edit.width ) {
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widget->spec.edit.start = widget->spec.edit.pos -
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widget->spec.edit.width;
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widget->spec.edit.x = widget->spec.edit.width;
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/* update the display buffer */
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gui_edit_update_display_buffer( widget );
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changed = 1;
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}
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else {
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/* within text */
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widget->spec.edit.x =
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widget->spec.edit.pos - widget->spec.edit.start;
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}
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}
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return changed;
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}
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/*
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====================================================================
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Handle the pressed key, modify the edit buffer and update the
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displayed edit if visible.
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====================================================================
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*/
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static void gui_edit_handle_key(
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GuiWidget *widget, int keysym, int unicode )
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{
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int i, changed = 0, old_length = widget->spec.edit.length;
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switch ( keysym ) {
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case SDLK_RIGHT:
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gui_edit_adjust_cursor( widget, 1 );
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changed = 1;
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break;
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case SDLK_LEFT:
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gui_edit_adjust_cursor( widget, -1 );
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changed = 1;
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break;
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case SDLK_DOWN:
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gui_edit_adjust_cursor(
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widget, widget->spec.edit.width );
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changed = 1;
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break;
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case SDLK_UP:
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gui_edit_adjust_cursor(
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widget, -widget->spec.edit.width );
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changed = 1;
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break;
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case SDLK_HOME:
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gui_edit_adjust_cursor(
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widget, -widget->spec.edit.pos );
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changed = 1;
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break;
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case SDLK_END:
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widget->spec.edit.pos = 0;
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gui_edit_adjust_cursor(
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widget, widget->spec.edit.length );
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changed = 1;
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break;
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case SDLK_BACKSPACE:
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if ( widget->spec.edit.pos > 0 ) {
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--widget->spec.edit.pos;
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for ( i = widget->spec.edit.pos;
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i < widget->spec.edit.length - 1; i++ )
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widget->spec.edit.buffer[i] =
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widget->spec.edit.buffer[i + 1];
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widget->spec.edit.buffer[i] = 0;
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widget->spec.edit.length--;
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if ( !gui_edit_adjust_cursor( widget, 0 ) )
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gui_edit_update_display_buffer( widget );
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changed = 1;
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}
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break;
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case SDLK_DELETE:
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if ( widget->spec.edit.pos < widget->spec.edit.length ) {
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for ( i = widget->spec.edit.pos;
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i < widget->spec.edit.length - 1; i++ )
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widget->spec.edit.buffer[i] =
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widget->spec.edit.buffer[i + 1];
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widget->spec.edit.buffer[i] = 0;
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widget->spec.edit.length--;
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gui_edit_update_display_buffer( widget );
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changed = 1;
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}
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break;
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default:
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if ( widget->spec.edit.filter[unicode] && widget->spec.edit.pos < widget->spec.edit.size )
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if ( widget->spec.edit.length < widget->spec.edit.size ) {
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for ( i = widget->spec.edit.size - 1;
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i > widget->spec.edit.pos; i-- )
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widget->spec.edit.buffer[i] =
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widget->spec.edit.buffer[i - 1];
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widget->spec.edit.buffer[widget->spec.edit.pos++] = unicode;
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widget->spec.edit.length++;
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if ( !gui_edit_adjust_cursor( widget, 0 ) )
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gui_edit_update_display_buffer( widget );
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changed = 1;
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}
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break;
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}
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if ( changed ) {
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gui_edit_blink_time = 0;
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gui_edit_blink = 1;
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gui_widget_draw( widget );
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gui_edit_interval = 0;
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gui_edit_keysym = keysym;
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gui_edit_unicode = unicode;
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if ( old_length != widget->spec.edit.length ) {
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gui_widget_call_user_event_handler(
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widget, gui_event_get_simple( GUI_CHANGED ) );
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}
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}
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else
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gui_edit_keysym = -1;
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}
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/*
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====================================================================
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PUBLICS
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====================================================================
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*/
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/*
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====================================================================
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Create a multi-line editable widget. By checking the measurements
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of the standard font the number of lines and the line width is
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determined.
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'text': is copied and displayed when first shown
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'size': limit of characters (excluding the \0)
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====================================================================
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*/
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GuiWidget* gui_edit_create(
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GuiWidget *parent, int x, int y, int width, int height,
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void (*user_event_handler)(GuiWidget*,GuiEvent*),
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int border, int multi_line, int size, char *text )
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{
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GuiWidget *widget = gui_widget_create(
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parent, GUI_EDIT, x, y, width, height,
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default_event_handler, user_event_handler );
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/* events */
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gui_widget_enable_event( widget, GUI_CHANGED );
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/* create surface, wallpaper and frame it */
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widget->surface = stk_surface_create(
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SDL_SWSURFACE, width, height );
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SDL_SetColorKey( widget->surface, 0,0 );
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stk_surface_apply_wallpaper( widget->surface, 0,0,-1,-1,
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gui_theme->widget_wallpaper, STK_OPAQUE );
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widget->border = stk_surface_apply_frame(
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widget->surface, 0, 0, -1, -1,
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gui_theme->widget_frame );
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/* size w/o border */
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||||
widget->width -= 2 * widget->border;
|
||||
widget->height -= 2 * widget->border;
|
||||
/* grab keys */
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||||
widget->grab_keys = 1;
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||||
/* prepare text */
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||||
gui_edit_set_filter( widget, GUI_EDIT_DEFAULT );
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||||
widget->spec.edit.multi_line = multi_line;
|
||||
widget->border += border;
|
||||
widget->spec.edit.width =
|
||||
(width - widget->border*2) /
|
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gui_theme->edit_font->width;
|
||||
if ( multi_line )
|
||||
widget->spec.edit.height =
|
||||
(height - widget->border*2) /
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||||
gui_theme->edit_font->height;
|
||||
else
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widget->spec.edit.height = 1;
|
||||
widget->spec.edit.display_buffer =
|
||||
calloc( (widget->spec.edit.width+1) * widget->spec.edit.height,
|
||||
sizeof( char ) );
|
||||
if ( widget->spec.edit.display_buffer == 0 )
|
||||
GUI_ABORT( "Out Of Memory" );
|
||||
gui_edit_resize_buffer( widget, size );
|
||||
gui_edit_set_text( widget, text );
|
||||
/* center single-line edit */
|
||||
if ( !multi_line )
|
||||
widget->spec.edit.y_offset =
|
||||
(height - 2 * widget->border -
|
||||
gui_theme->edit_font->height) / 2;
|
||||
/* done */
|
||||
return widget;
|
||||
}
|
||||
|
||||
/*
|
||||
====================================================================
|
||||
Resize the edit buffer and clear any text. (no update)
|
||||
====================================================================
|
||||
*/
|
||||
void gui_edit_resize_buffer( GuiWidget *widget, int size )
|
||||
{
|
||||
if ( widget->type != GUI_EDIT ) return;
|
||||
widget->spec.edit.size = size;
|
||||
if ( widget->spec.edit.buffer )
|
||||
free( widget->spec.edit.buffer );
|
||||
widget->spec.edit.buffer = calloc( size + 1, sizeof( char ) );
|
||||
if ( widget->spec.edit.buffer == 0 )
|
||||
GUI_ABORT( "Out Of Memory" );
|
||||
}
|
||||
/*
|
||||
====================================================================
|
||||
Set the edit's text. This resets the edit cursor's position to
|
||||
end of text and updates displayed edit if visible.
|
||||
====================================================================
|
||||
*/
|
||||
void gui_edit_set_text( GuiWidget *widget, char *text )
|
||||
{
|
||||
if ( widget->type != GUI_EDIT ) return;
|
||||
/* copy text */
|
||||
snprintf( widget->spec.edit.buffer, widget->spec.edit.size + 1, "%s", text );
|
||||
widget->spec.edit.length = strlen( widget->spec.edit.buffer );
|
||||
/* reset */
|
||||
/* first character in first line */
|
||||
widget->spec.edit.pos = 0;
|
||||
widget->spec.edit.x = widget->spec.edit.y = 0;
|
||||
widget->spec.edit.start = widget->spec.edit.line = 0;
|
||||
/* jump to end */
|
||||
if ( !gui_edit_adjust_cursor( widget, widget->spec.edit.length ) )
|
||||
gui_edit_update_display_buffer( widget );
|
||||
/* update */
|
||||
if ( widget->visible )
|
||||
gui_widget_draw( widget );
|
||||
}
|
||||
/*
|
||||
====================================================================
|
||||
Copy characters from 'start' to 'length' of the edit string to
|
||||
'buffer' (at maximum limit characters including \0). If 'length'
|
||||
is -1 the characters copied are those from 'start' to end of text.
|
||||
====================================================================
|
||||
*/
|
||||
int gui_edit_get_text(
|
||||
GuiWidget *widget, char *buffer, int limit,
|
||||
int start, int length )
|
||||
{
|
||||
char *ptr;
|
||||
if ( widget->type != GUI_EDIT ) return 0;
|
||||
if ( start < 0 ) start = 0;
|
||||
ptr = widget->spec.edit.buffer + start;
|
||||
if ( length == -1 )
|
||||
length = strlen( ptr );
|
||||
if ( length > limit )
|
||||
length = limit;
|
||||
if ( length )
|
||||
snprintf( buffer, limit, "%s", widget->spec.edit.buffer );
|
||||
else
|
||||
buffer[0] = 0;
|
||||
return 1;
|
||||
}
|
||||
/*
|
||||
====================================================================
|
||||
Update the blinking cursor flag (no update) of the edit and in
|
||||
case a key is pressed call gui_edit_handle_key().
|
||||
====================================================================
|
||||
*/
|
||||
void gui_edit_update( GuiWidget *widget, int ms )
|
||||
{
|
||||
gui_edit_blink_time += ms;
|
||||
if ( gui_edit_blink_time > 500 ) {
|
||||
gui_edit_blink_time = 0;
|
||||
gui_edit_blink = !gui_edit_blink;
|
||||
gui_widget_draw( widget );
|
||||
}
|
||||
if ( gui_edit_keysym != -1 ) {
|
||||
if ( gui_edit_delay > 0 ) {
|
||||
gui_edit_delay -= ms;
|
||||
if ( gui_edit_delay <= 0 )
|
||||
gui_edit_delay = 0;
|
||||
}
|
||||
if ( gui_edit_delay == 0 ) {
|
||||
if ( gui_edit_interval > 0 ) {
|
||||
gui_edit_interval -= ms;
|
||||
if ( gui_edit_interval < 0 )
|
||||
gui_edit_interval = 0;
|
||||
}
|
||||
if ( gui_edit_interval == 0 ) {
|
||||
gui_edit_handle_key( widget,
|
||||
gui_edit_keysym, gui_edit_unicode );
|
||||
gui_edit_interval = 30;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/*
|
||||
====================================================================
|
||||
Select a character set.
|
||||
default: all non-whitespaces >=32 && <= 128
|
||||
alpha: A-Z,a-z
|
||||
numerical: 0-9
|
||||
alphanumerical: A-Z,a-z,0-9
|
||||
====================================================================
|
||||
*/
|
||||
void gui_edit_set_filter( GuiWidget *widget, int type )
|
||||
{
|
||||
int i, j;
|
||||
if ( widget->type != GUI_EDIT ) return;
|
||||
memset( widget->spec.edit.filter, 0,
|
||||
sizeof( widget->spec.edit.filter ) );
|
||||
switch ( type ) {
|
||||
case GUI_EDIT_DEFAULT:
|
||||
for ( i = 32; i <= 128; i++ )
|
||||
widget->spec.edit.filter[i] = 1;
|
||||
break;
|
||||
case GUI_EDIT_ALPHANUMERICAL:
|
||||
case GUI_EDIT_ALPHANUMERICAL2:
|
||||
case GUI_EDIT_ALPHA:
|
||||
for ( i = 65, j = 97; i <= 90; i++, j++ ) {
|
||||
widget->spec.edit.filter[i] = 1;
|
||||
widget->spec.edit.filter[j] = 1;
|
||||
}
|
||||
if ( type == GUI_EDIT_ALPHANUMERICAL || type == GUI_EDIT_ALPHANUMERICAL2 ) {
|
||||
widget->spec.edit.filter[45] = 1;
|
||||
for ( i = 48; i <= 57; i++ )
|
||||
widget->spec.edit.filter[i] = 1;
|
||||
}
|
||||
if ( type == GUI_EDIT_ALPHANUMERICAL2 )
|
||||
widget->spec.edit.filter[95] = 1;
|
||||
break;
|
||||
case GUI_EDIT_NUMERICAL:
|
||||
for ( i = 48; i <= 57; i++ )
|
||||
widget->spec.edit.filter[i] = 1;
|
||||
widget->spec.edit.filter[45] = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user