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375 lines
7.6 KiB
C
375 lines
7.6 KiB
C
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/* jinete - a GUI library
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* Copyright (C) 2003-2005, 2007 by David A. Capello
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*
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* Jinete is gift-ware.
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*/
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#include <allegro.h>
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#include <allegro/internal/aintern.h>
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#include "jinete/font.h"
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#include "jinete/manager.h"
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#include "jinete/rect.h"
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#include "jinete/system.h"
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#include "jinete/theme.h"
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#include "jinete/view.h"
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#include "jinete/widget.h"
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static JTheme ji_current_theme = NULL;
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static JTheme ji_standard_theme = NULL;
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static void draw_text(BITMAP *bmp, FONT *f, const char *text, int x, int y,
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int fg_color, int bg_color, bool fill_bg);
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int _ji_theme_init(void)
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{
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return 0;
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}
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void _ji_theme_exit(void)
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{
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if (ji_standard_theme) {
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jtheme_free(ji_standard_theme);
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ji_standard_theme = NULL;
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}
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}
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JTheme jtheme_new(void)
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{
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JTheme theme;
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theme = jmalloc(sizeof (struct jtheme));
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if (!theme)
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return NULL;
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theme->name = "Theme";
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theme->default_font = font; /* default Allegro font */
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theme->desktop_color = 0;
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theme->textbox_fg_color = 0;
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theme->textbox_bg_color = 0;
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theme->check_icon_size = 0;
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theme->radio_icon_size = 0;
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theme->scrollbar_size = 0;
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theme->destroy = NULL;
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theme->regen = NULL;
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theme->set_cursor = NULL;
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theme->init_widget = NULL;
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theme->get_window_mask = NULL;
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theme->map_decorative_widget = NULL;
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theme->nmethods = 0;
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theme->methods = NULL;
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return theme;
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}
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void jtheme_free(JTheme theme)
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{
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if (theme->destroy)
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(*theme->destroy)();
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if (ji_current_theme == theme)
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ji_set_theme(NULL);
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if (theme->methods)
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jfree(theme->methods);
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jfree(theme);
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}
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void jtheme_set_method(JTheme theme, int widget_type, JDrawFunc draw_widget)
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{
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if (widget_type >= theme->nmethods) {
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int c, old_nmethods = theme->nmethods;
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theme->nmethods = widget_type+1;
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theme->methods = jrealloc(theme->methods,
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sizeof (JDrawFunc) * theme->nmethods);
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for (c=old_nmethods; c<theme->nmethods; c++)
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theme->methods[c] = NULL;
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}
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theme->methods[widget_type] = draw_widget;
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}
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JDrawFunc jtheme_get_method(JTheme theme, int widget_type)
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{
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if (theme->methods && widget_type >= 0 && widget_type < theme->nmethods)
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return theme->methods[widget_type];
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else
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return NULL;
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}
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/**********************************************************************/
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void ji_set_theme(JTheme theme)
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{
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JWidget manager = ji_get_default_manager();
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ji_current_theme = theme;
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if (ji_current_theme) {
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ji_regen_theme();
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/* XXX any better idea? */
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if (manager && jwidget_get_theme(manager) == NULL)
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jwidget_set_theme(manager, theme);
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}
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}
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void ji_set_standard_theme(void)
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{
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if (!ji_standard_theme) {
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ji_standard_theme = jtheme_new_standard();
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/* ji_standard_theme = jtheme_new_simple(); */
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if (!ji_standard_theme)
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return;
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}
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ji_set_theme(ji_standard_theme);
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}
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JTheme ji_get_theme(void)
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{
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return ji_current_theme;
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}
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void ji_regen_theme(void)
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{
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if (ji_current_theme) {
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/* hide the cursor */
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show_mouse(NULL);
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set_mouse_sprite(NULL);
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if (ji_current_theme->regen)
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(*ji_current_theme->regen)();
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/* ok, reset the mouse cursor */
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ji_mouse_set_cursor(ji_mouse_get_cursor());
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}
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}
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void _ji_theme_draw_sprite_color(BITMAP *bmp, BITMAP *sprite,
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int x, int y, int color)
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{
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int u, v, mask = bitmap_mask_color(sprite);
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for (v=0; v<sprite->h; v++)
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for (u=0; u<sprite->w; u++)
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if (getpixel(sprite, u, v) != mask)
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putpixel(bmp, x+u, y+v, color);
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}
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void _ji_theme_rectedge(BITMAP *bmp,
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int x1, int y1, int x2, int y2, int c1, int c2)
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{
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vline(bmp, x1, y1, y2, c1);
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vline(bmp, x2, y1, y2, c2);
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hline(bmp, x1+1, y1, x2-1, c1);
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hline(bmp, x1+1, y2, x2-1, c2);
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}
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void _ji_theme_rectfill_exclude(BITMAP *bmp,
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int x1, int y1, int x2, int y2,
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int ex1, int ey1, int ex2, int ey2, int color)
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{
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if ((ex1 > x2) || (ex2 < x1) ||
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(ey1 > y2) || (ey2 < y1))
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rectfill(bmp, x1, y1, x2, y2, color);
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else {
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int y, my1, my2;
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my1 = MAX(y1, ey1);
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my2 = MIN(y2, ey2);
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/* top */
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for (y=y1; y<ey1; y++)
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hline(bmp, x1, y, x2, color);
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/* left */
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if (x1 < ex1)
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for (y=my1; y<=my2; y++)
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hline(bmp, x1, y, ex1-1, color);
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/* right */
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if (x2 > ex2)
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for (y=my1; y<=my2; y++)
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hline(bmp, ex2+1, y, x2, color);
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/* bottom */
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for (y=ey2+1; y<=y2; y++)
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hline(bmp, x1, y, x2, color);
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}
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}
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void _ji_theme_textbox_draw(BITMAP *bmp, JWidget widget, int *w, int *h)
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{
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JWidget view = jwidget_get_view(widget);
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char *text = widget->text;
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int x1, y1, x2, y2;
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int x, y, chr, len;
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char *beg, *end;
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int bg = widget->theme->textbox_bg_color;
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int fg = widget->theme->textbox_fg_color;
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int scroll_x, scroll_y;
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int viewport_w, viewport_h;
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int textheight = jwidget_get_text_height(widget);
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FONT *font = widget->text_font;
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char *beg_end, *old_end;
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int width;
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if (view) {
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JRect vp = jview_get_viewport_position (view);
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x1 = vp->x1;
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y1 = vp->y1;
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viewport_w = jrect_w(vp);
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viewport_h = jrect_h(vp);
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jview_get_scroll(view, &scroll_x, &scroll_y);
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jrect_free(vp);
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}
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else {
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x1 = widget->rc->x1;
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y1 = widget->rc->y1;
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viewport_w = jrect_w(widget->rc);
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viewport_h = jrect_h(widget->rc);
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scroll_x = scroll_y = 0;
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}
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x2 = x1+viewport_w-1;
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y2 = y1+viewport_h-1;
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chr = 0;
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/* without word-wrap */
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if (!(widget->align & JI_WORDWRAP)) {
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width = jrect_w(widget->rc);
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}
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/* with word-wrap */
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else {
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if (w) {
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width = *w;
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*w = 0;
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}
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else {
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/* XXX modificable option? I don't think so, this is very internal stuff */
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#if 0
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/* shows more information in x-scroll 0 */
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width = viewport_w;
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#else
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/* make good use of the complete text-box */
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if (view) {
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int w, h;
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jview_get_max_size(view, &w, &h);
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width = MAX(viewport_w, w);
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}
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else {
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width = viewport_w;
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}
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#endif
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}
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}
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/* draw line-by-line */
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y = y1 - scroll_y;
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for (beg=end=text; end; ) {
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x = x1 - scroll_x;
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/* without word-wrap */
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if (!(widget->align & JI_WORDWRAP)) {
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end = ustrchr (beg, '\n');
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if (end) {
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chr = *end;
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*end = 0;
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}
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}
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/* with word-wrap */
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else {
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old_end = NULL;
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for (beg_end=beg;;) {
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end = ustrpbrk(beg_end, " \n");
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if (end) {
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chr = *end;
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*end = 0;
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}
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/* to here we can print */
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if ((old_end) && (x+text_length(font, beg) > x1-scroll_x+width)) {
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if (end)
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*end = chr;
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end = old_end;
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chr = *end;
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*end = 0;
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break;
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}
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/* we can print one word more */
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else if (end) {
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/* force break */
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if (chr == '\n')
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break;
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*end = chr;
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beg_end = end+1;
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}
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/* we are in the end of text */
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else
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break;
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old_end = end;
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}
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}
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len = text_length(font, beg);
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/* render the text in the "bmp" */
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if (bmp) {
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int xout;
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if (widget->align & JI_CENTER)
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xout = x + width/2 - len/2;
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else if (widget->align & JI_RIGHT)
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xout = x + width - len;
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else /* left */
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xout = x;
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draw_text(bmp, font, beg, xout, y, fg, bg, TRUE);
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_ji_theme_rectfill_exclude
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(bmp,
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x1, y, x2, y+textheight-1,
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xout, y, xout+len-1, y+textheight-1, bg);
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}
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/* width */
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if (w)
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*w = MAX (*w, len);
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y += textheight;
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if (end) {
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*end = chr;
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beg = end+1;
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}
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}
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/* height */
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if (h)
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*h = (y-y1+scroll_y);
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if (bmp) {
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/* fill bottom area */
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if (y <= y2)
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rectfill(bmp, x1, y, x2, y2, bg);
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}
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}
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static void draw_text(BITMAP *bmp, FONT *f, const char *text, int x, int y,
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int fg_color, int bg_color, bool fill_bg)
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{
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/* XXXX optional anti-aliased textout */
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ji_font_set_aa_mode(f, bg_color);
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text_mode(fill_bg ? bg_color: -1);
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textout(bmp, f, text, x, y, fg_color);
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/* XXXX */
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}
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