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Diffstat (limited to 'src/ui/testgradient.c')
| -rw-r--r-- | src/ui/testgradient.c | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/src/ui/testgradient.c b/src/ui/testgradient.c deleted file mode 100644 index 28de317d..00000000 --- a/src/ui/testgradient.c +++ /dev/null @@ -1,348 +0,0 @@ -/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ - -/* Metacity gradient test program */ - -/* - * Copyright (C) 2002 Havoc Pennington - * - * 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. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. */ - -#include "gradient.h" -#include <gtk/gtk.h> - -typedef void (* RenderGradientFunc) (GdkDrawable *drawable, - GdkGC *gc, - int width, - int height); - -static void -draw_checkerboard (GdkDrawable *drawable, - int width, - int height) -{ - gint i, j, xcount, ycount; - GdkGC *gc1, *gc2; - GdkColor color; - -#define CHECK_SIZE 10 -#define SPACING 2 - - /* It would be a bit more efficient to keep these - * GC's around instead of recreating on each expose, but - * this is the lazy/slow way. - */ - gc1 = gdk_gc_new (drawable); - color.red = 30000; - color.green = 30000; - color.blue = 30000; - gdk_gc_set_rgb_fg_color (gc1, &color); - - gc2 = gdk_gc_new (drawable); - color.red = 50000; - color.green = 50000; - color.blue = 50000; - gdk_gc_set_rgb_fg_color (gc2, &color); - - xcount = 0; - i = SPACING; - while (i < width) - { - j = SPACING; - ycount = xcount % 2; /* start with even/odd depending on row */ - while (j < height) - { - GdkGC *gc; - - if (ycount % 2) - gc = gc1; - else - gc = gc2; - - /* If we're outside event->area, this will do nothing. - * It might be mildly more efficient if we handled - * the clipping ourselves, but again we're feeling lazy. - */ - gdk_draw_rectangle (drawable, - gc, - TRUE, - i, j, - CHECK_SIZE, - CHECK_SIZE); - - j += CHECK_SIZE + SPACING; - ++ycount; - } - - i += CHECK_SIZE + SPACING; - ++xcount; - } - - g_object_unref (G_OBJECT (gc1)); - g_object_unref (G_OBJECT (gc2)); -} - -static void -render_simple (GdkDrawable *drawable, - GdkGC *gc, - int width, int height, - MetaGradientType type, - gboolean with_alpha) -{ - GdkPixbuf *pixbuf; - GdkColor from, to; - - gdk_color_parse ("blue", &from); - gdk_color_parse ("green", &to); - - pixbuf = meta_gradient_create_simple (width, height, - &from, &to, - type); - - if (with_alpha) - { - const unsigned char alphas[] = { 0xff, 0xaa, 0x2f, 0x0, 0xcc, 0xff, 0xff }; - - if (!gdk_pixbuf_get_has_alpha (pixbuf)) - { - GdkPixbuf *new_pixbuf; - - new_pixbuf = gdk_pixbuf_add_alpha (pixbuf, FALSE, 0, 0, 0); - g_object_unref (G_OBJECT (pixbuf)); - pixbuf = new_pixbuf; - } - - meta_gradient_add_alpha (pixbuf, - alphas, G_N_ELEMENTS (alphas), - META_GRADIENT_HORIZONTAL); - - draw_checkerboard (drawable, width, height); - } - - gdk_draw_pixbuf (drawable, - gc, - pixbuf, - 0, 0, - 0, 0, width, height, - GDK_RGB_DITHER_MAX, - 0, 0); - - g_object_unref (G_OBJECT (pixbuf)); -} - -static void -render_vertical_func (GdkDrawable *drawable, - GdkGC *gc, - int width, int height) -{ - render_simple (drawable, gc, width, height, META_GRADIENT_VERTICAL, FALSE); -} - -static void -render_horizontal_func (GdkDrawable *drawable, - GdkGC *gc, - int width, int height) -{ - render_simple (drawable, gc, width, height, META_GRADIENT_HORIZONTAL, FALSE); -} - -static void -render_diagonal_func (GdkDrawable *drawable, - GdkGC *gc, - int width, int height) -{ - render_simple (drawable, gc, width, height, META_GRADIENT_DIAGONAL, FALSE); -} - -static void -render_diagonal_alpha_func (GdkDrawable *drawable, - GdkGC *gc, - int width, int height) -{ - render_simple (drawable, gc, width, height, META_GRADIENT_DIAGONAL, TRUE); -} - -static void -render_multi (GdkDrawable *drawable, - GdkGC *gc, - int width, int height, - MetaGradientType type) -{ - GdkPixbuf *pixbuf; -#define N_COLORS 5 - GdkColor colors[N_COLORS]; - - gdk_color_parse ("red", &colors[0]); - gdk_color_parse ("blue", &colors[1]); - gdk_color_parse ("orange", &colors[2]); - gdk_color_parse ("pink", &colors[3]); - gdk_color_parse ("green", &colors[4]); - - pixbuf = meta_gradient_create_multi (width, height, - colors, N_COLORS, - type); - - gdk_pixbuf_render_to_drawable (pixbuf, - drawable, - gc, - 0, 0, - 0, 0, width, height, - GDK_RGB_DITHER_NORMAL, - 0, 0); - - g_object_unref (G_OBJECT (pixbuf)); -#undef N_COLORS -} - -static void -render_vertical_multi_func (GdkDrawable *drawable, - GdkGC *gc, - int width, int height) -{ - render_multi (drawable, gc, width, height, META_GRADIENT_VERTICAL); -} - -static void -render_horizontal_multi_func (GdkDrawable *drawable, - GdkGC *gc, - int width, int height) -{ - render_multi (drawable, gc, width, height, META_GRADIENT_HORIZONTAL); -} - -static void -render_diagonal_multi_func (GdkDrawable *drawable, - GdkGC *gc, - int width, int height) -{ - render_multi (drawable, gc, width, height, META_GRADIENT_DIAGONAL); -} - -static void -render_interwoven_func (GdkDrawable *drawable, - GdkGC *gc, - int width, int height) -{ - GdkPixbuf *pixbuf; -#define N_COLORS 4 - GdkColor colors[N_COLORS]; - - gdk_color_parse ("red", &colors[0]); - gdk_color_parse ("blue", &colors[1]); - gdk_color_parse ("pink", &colors[2]); - gdk_color_parse ("green", &colors[3]); - - pixbuf = meta_gradient_create_interwoven (width, height, - colors, height / 10, - colors + 2, height / 14); - - gdk_pixbuf_render_to_drawable (pixbuf, - drawable, - gc, - 0, 0, - 0, 0, width, height, - GDK_RGB_DITHER_NORMAL, - 0, 0); - - g_object_unref (G_OBJECT (pixbuf)); -} - -static gboolean -expose_callback (GtkWidget *widget, - GdkEventExpose *event, - gpointer data) -{ - RenderGradientFunc func = data; - - (* func) (widget->window, - widget->style->fg_gc[widget->state], - widget->allocation.width, - widget->allocation.height); - - return TRUE; -} - -static GtkWidget* -create_gradient_window (const char *title, - RenderGradientFunc func) -{ - GtkWidget *window; - GtkWidget *drawing_area; - - window = gtk_window_new (GTK_WINDOW_TOPLEVEL); - - gtk_window_set_title (GTK_WINDOW (window), title); - - drawing_area = gtk_drawing_area_new (); - - gtk_widget_set_size_request (drawing_area, 1, 1); - - gtk_window_set_default_size (GTK_WINDOW (window), 175, 175); - - g_signal_connect (G_OBJECT (drawing_area), - "expose_event", - G_CALLBACK (expose_callback), - func); - - gtk_container_add (GTK_CONTAINER (window), drawing_area); - - gtk_widget_show_all (window); - - return window; -} - -static void -meta_gradient_test (void) -{ - GtkWidget *window; - - window = create_gradient_window ("Simple vertical", - render_vertical_func); - - window = create_gradient_window ("Simple horizontal", - render_horizontal_func); - - window = create_gradient_window ("Simple diagonal", - render_diagonal_func); - - window = create_gradient_window ("Multi vertical", - render_vertical_multi_func); - - window = create_gradient_window ("Multi horizontal", - render_horizontal_multi_func); - - window = create_gradient_window ("Multi diagonal", - render_diagonal_multi_func); - - window = create_gradient_window ("Interwoven", - render_interwoven_func); - - window = create_gradient_window ("Simple diagonal with horizontal multi alpha", - render_diagonal_alpha_func); - -} - -int -main (int argc, char **argv) -{ - gtk_init (&argc, &argv); - - meta_gradient_test (); - - gtk_main (); - - return 0; -} - |