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/***************************************************************************
gui_progressbar.c - description
-------------------
begin : Wed Oct 16 2002
copyright : (C) 2002 by Michael Speck
email : kulkanie@gmx.net
***************************************************************************/
/***************************************************************************
* *
* This program 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. *
* *
***************************************************************************/
#include "gui_widget.h"
#include "gui_progressbar.h"
extern GuiTheme *gui_theme;
extern SDL_Surface *stk_display;
/*
====================================================================
LOCALS
====================================================================
*/
/*
====================================================================
Default event handler
====================================================================
*/
static char progressbar_hint[32];
static void default_event_handler(
GuiWidget *widget, GuiEvent *event )
{
switch ( event->type ) {
case GUI_DESTROY:
break;
case GUI_DRAW:
/* display surface */
stk_surface_blit(
widget->surface, 0,0,-1,-1,
stk_display,
widget->screen_region.x,
widget->screen_region.y );
/* add progress */
stk_surface_apply_wallpaper( stk_display,
widget->screen_region.x + widget->border,
widget->screen_region.y + widget->border,
widget->spec.progressbar.length,
widget->screen_region.h - (widget->border<<1),
widget->spec.progressbar.wallpaper, -1 );
/* if focused add info */
if ( widget->focused ) {
gui_theme->progressbar_font->align =
STK_FONT_ALIGN_CENTER_X |
STK_FONT_ALIGN_CENTER_Y;
snprintf( progressbar_hint, 32, "%i/%i",
widget->spec.progressbar.value,
widget->spec.progressbar.max );
stk_font_write( gui_theme->progressbar_font,
stk_display,
widget->screen_region.x +
widget->screen_region.w/2,
widget->screen_region.y +
widget->screen_region.h/2,
-1, progressbar_hint );
}
break;
case GUI_FOCUS_IN:
case GUI_FOCUS_OUT:
gui_widget_draw( widget );
break;
}
}
/*
====================================================================
Adjust length of the beam and set correct beam wallpaper.
(no update)
====================================================================
*/
static void gui_progressbar_adjust( GuiWidget *widget )
{
int ratio = 100 * widget->spec.progressbar.value /
widget->spec.progressbar.max;
/* wallpaper */
if ( ratio > 60 )
widget->spec.progressbar.wallpaper =
gui_theme->progress_high;
else
if ( ratio > 25 )
widget->spec.progressbar.wallpaper =
gui_theme->progress_medium;
else
widget->spec.progressbar.wallpaper =
gui_theme->progress_low;
/* length */
widget->spec.progressbar.length =
(widget->parent_region.w - (widget->border<<1)) *
widget->spec.progressbar.value / widget->spec.progressbar.max;
}
/*
====================================================================
PUBLICS
====================================================================
*/
/*
====================================================================
Create a framed progress bar.
====================================================================
*/
GuiWidget *gui_progressbar_create(
GuiWidget *parent, int x, int y, int width, int height,
void (*user_event_handler)(GuiWidget*,GuiEvent*),
int max, int value )
{
GuiWidget *widget = gui_widget_create(
parent, GUI_PROGRESSBAR, x, y, width, height,
default_event_handler, user_event_handler );
/* create surface, wallpaper and frame it */
widget->surface = stk_surface_create(
SDL_SWSURFACE, width, height );
SDL_SetColorKey( widget->surface, 0,0 );
stk_surface_apply_wallpaper( widget->surface, 0,0,-1,-1,
gui_theme->widget_wallpaper, -1 );
widget->border = stk_surface_apply_frame(
widget->surface, 0, 0, -1, -1,
gui_theme->widget_frame );
/* size w/o border */
widget->width -= 2 * widget->border;
widget->height -= 2 * widget->border;
/* set value */
widget->spec.progressbar.max = max;
gui_progressbar_set_value( widget, value );
/* done */
return widget;
}
/*
====================================================================
Get/Set value and limit of progressbar.
====================================================================
*/
void gui_progressbar_set_value(
GuiWidget *widget, int value )
{
if ( widget->type != GUI_PROGRESSBAR ) return;
/* set value */
widget->spec.progressbar.value = value;
gui_progressbar_adjust( widget );
/* done */
if ( widget->visible )
gui_widget_draw( widget );
}
void gui_progressbar_set_max(
GuiWidget *widget, int max )
{
if ( widget->type != GUI_PROGRESSBAR ) return;
/* set max */
widget->spec.progressbar.max = max;
gui_progressbar_adjust( widget );
/* done */
if ( widget->visible )
gui_widget_draw( widget );
}
int gui_progressbar_get_value(
GuiWidget *widget, int *value )
{
if ( widget->type != GUI_PROGRESSBAR ) return 0;
*value = widget->spec.progressbar.value;
return 1;
}
int gui_progressbar_get_max(
GuiWidget *widget, int *max )
{
if ( widget->type != GUI_PROGRESSBAR ) return 0;
*max = widget->spec.progressbar.max;
return 1;
}
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