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gtk2/gtk/gtkstyle.c

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Initial revision
1997-11-24 22:37:52 +00:00
/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <math.h>
#include "gtkgc.h"
#include "gtkstyle.h"
#define LIGHTNESS_MULT 1.3
#define DARKNESS_MULT 0.7
typedef struct _GtkStyleKey GtkStyleKey;
struct _GtkStyleKey
{
GdkColor fg[5];
GdkColor bg[5];
GdkColor text[5];
GdkColor base[5];
GdkPixmap *bg_pixmap[5];
GdkFont *font;
gint depth;
GdkColormap *colormap;
GtkStyleClass *klass;
};
static void gtk_style_init (GtkStyle *style);
static void gtk_styles_init (void);
static void gtk_style_remove (GtkStyle *style);
static GtkStyle* gtk_style_find (GtkStyle *style,
GdkColormap *cmap,
gint depth);
static GtkStyle* gtk_style_new_from_key (GtkStyleKey *key);
static GtkStyleKey* gtk_style_key_dup (GtkStyleKey *key);
static void gtk_style_destroy (GtkStyle *style);
static void gtk_style_key_destroy (GtkStyleKey *key);
static guint gtk_style_key_hash (GtkStyleKey *key);
static guint gtk_style_value_hash (GtkStyle *style);
static gint gtk_style_key_compare (GtkStyleKey *a,
GtkStyleKey *b);
static void gtk_default_draw_hline (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint x1,
gint x2,
gint y);
static void gtk_default_draw_vline (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint y1,
gint y2,
gint x);
static void gtk_default_draw_shadow (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_polygon (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
GdkPoint *points,
gint npoints,
gint fill);
static void gtk_default_draw_arrow (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkArrowType arrow_type,
gint fill,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_diamond (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_oval (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_string (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint x,
gint y,
const gchar *string);
static void gtk_style_shade (GdkColor *a, GdkColor *b, gdouble k);
static void rgb_to_hls (gdouble *r, gdouble *g, gdouble *b);
static void hls_to_rgb (gdouble *h, gdouble *l, gdouble *s);
static GtkStyleClass default_class =
{
2,
2,
gtk_default_draw_hline,
gtk_default_draw_vline,
gtk_default_draw_shadow,
gtk_default_draw_polygon,
gtk_default_draw_arrow,
gtk_default_draw_diamond,
gtk_default_draw_oval,
gtk_default_draw_string,
};
static GdkColor gtk_default_normal_fg = { 0, 0, 0, 0 };
static GdkColor gtk_default_active_fg = { 0, 0, 0, 0 };
static GdkColor gtk_default_prelight_fg = { 0, 0, 0, 0 };
static GdkColor gtk_default_selected_fg = { 0, 0xffff, 0xffff, 0xffff };
static GdkColor gtk_default_insensitive_fg = { 0, 0x7530, 0x7530, 0x7530 };
static GdkColor gtk_default_normal_bg = { 0, 0xd6d6, 0xd6d6, 0xd6d6 };
static GdkColor gtk_default_active_bg = { 0, 0xc350, 0xc350, 0xc350 };
static GdkColor gtk_default_prelight_bg = { 0, 0xea60, 0xea60, 0xea60 };
static GdkColor gtk_default_selected_bg = { 0, 0, 0, 0x9c40 };
static GdkColor gtk_default_insensitive_bg = { 0, 0xd6d6, 0xd6d6, 0xd6d6 };
static GdkFont *default_font = NULL;
static gint initialize = TRUE;
static GCache *style_cache = NULL;
static GSList *unattached_styles = NULL;
static GMemChunk *key_mem_chunk = NULL;
GtkStyle*
gtk_style_new ()
{
GtkStyle *style;
gint i;
style = g_new (GtkStyle, 1);
if (!default_font)
default_font = gdk_font_load ("-adobe-helvetica-medium-r-normal--*-120-*-*-*-*-*-*");
style->font = default_font;
gdk_font_ref (style->font);
style->ref_count = 0;
style->attach_count = 0;
style->colormap = NULL;
style->depth = -1;
style->klass = &default_class;
style->black.red = 0;
style->black.green = 0;
style->black.blue = 0;
style->white.red = 65535;
style->white.green = 65535;
style->white.blue = 65535;
style->black_gc = NULL;
style->white_gc = NULL;
style->fg[GTK_STATE_NORMAL] = gtk_default_normal_fg;
style->fg[GTK_STATE_ACTIVE] = gtk_default_active_fg;
style->fg[GTK_STATE_PRELIGHT] = gtk_default_prelight_fg;
style->fg[GTK_STATE_SELECTED] = gtk_default_selected_fg;
style->fg[GTK_STATE_INSENSITIVE] = gtk_default_insensitive_fg;
style->bg[GTK_STATE_NORMAL] = gtk_default_normal_bg;
style->bg[GTK_STATE_ACTIVE] = gtk_default_active_bg;
style->bg[GTK_STATE_PRELIGHT] = gtk_default_prelight_bg;
style->bg[GTK_STATE_SELECTED] = gtk_default_selected_bg;
style->bg[GTK_STATE_INSENSITIVE] = gtk_default_insensitive_bg;
for (i = 0; i < 5; i++)
{
style->text[i] = style->fg[i];
style->base[i] = style->white;
}
for (i = 0; i < 5; i++)
style->bg_pixmap[i] = NULL;
for (i = 0; i < 5; i++)
{
style->fg_gc[i] = NULL;
style->bg_gc[i] = NULL;
style->light_gc[i] = NULL;
style->dark_gc[i] = NULL;
style->mid_gc[i] = NULL;
style->text_gc[i] = NULL;
style->base_gc[i] = NULL;
}
unattached_styles = g_slist_prepend (unattached_styles, style);
return style;
}
GtkStyle*
gtk_style_attach (GtkStyle *style,
GdkWindow *window)
{
GtkStyle *new_style;
GdkColormap *colormap;
gint depth;
g_return_val_if_fail (style != NULL, NULL);
g_return_val_if_fail (window != NULL, NULL);
colormap = gdk_window_get_colormap (window);
gdk_window_get_geometry (window, NULL, NULL, NULL, NULL, &depth);
new_style = gtk_style_find (style, colormap, depth);
if (new_style && (new_style != style))
{
gtk_style_unref (style);
style = new_style;
gtk_style_ref (style);
}
if (style->attach_count == 0)
unattached_styles = g_slist_remove (unattached_styles, style);
style->attach_count += 1;
return style;
}
void
gtk_style_detach (GtkStyle *style)
{
gint i;
g_return_if_fail (style != NULL);
style->attach_count -= 1;
if (style->attach_count == 0)
{
unattached_styles = g_slist_prepend (unattached_styles, style);
gtk_gc_release (style->black_gc);
gtk_gc_release (style->white_gc);
style->black_gc = NULL;
style->white_gc = NULL;
for (i = 0; i < 5; i++)
{
gtk_gc_release (style->fg_gc[i]);
gtk_gc_release (style->bg_gc[i]);
gtk_gc_release (style->light_gc[i]);
gtk_gc_release (style->dark_gc[i]);
gtk_gc_release (style->mid_gc[i]);
gtk_gc_release (style->text_gc[i]);
gtk_gc_release (style->base_gc[i]);
style->fg_gc[i] = NULL;
style->bg_gc[i] = NULL;
style->light_gc[i] = NULL;
style->dark_gc[i] = NULL;
style->mid_gc[i] = NULL;
style->text_gc[i] = NULL;
style->base_gc[i] = NULL;
}
style->depth = -1;
style->colormap = NULL;
}
gtk_style_remove (style);
}
GtkStyle*
gtk_style_ref (GtkStyle *style)
{
g_return_val_if_fail (style != NULL, NULL);
style->ref_count += 1;
return style;
}
void
gtk_style_unref (GtkStyle *style)
{
g_return_if_fail (style != NULL);
style->ref_count -= 1;
if (style->ref_count == 0)
gtk_style_destroy (style);
}
void
gtk_style_set_background (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type)
{
GdkPixmap *pixmap;
gint parent_relative;
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
if (style->bg_pixmap[state_type])
{
if (style->bg_pixmap[state_type] == (GdkPixmap*) GDK_PARENT_RELATIVE)
{
pixmap = NULL;
parent_relative = TRUE;
}
else
{
pixmap = style->bg_pixmap[state_type];
parent_relative = FALSE;
}
gdk_window_set_back_pixmap (window, pixmap, parent_relative);
}
else
gdk_window_set_background (window, &style->bg[state_type]);
}
void
gtk_draw_hline (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint x1,
gint x2,
gint y)
{
g_return_if_fail (style != NULL);
g_return_if_fail (style->klass != NULL);
g_return_if_fail (style->klass->draw_hline != NULL);
(*style->klass->draw_hline) (style, window, state_type, x1, x2, y);
}
void
gtk_draw_vline (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint y1,
gint y2,
gint x)
{
g_return_if_fail (style != NULL);
g_return_if_fail (style->klass != NULL);
g_return_if_fail (style->klass->draw_vline != NULL);
(*style->klass->draw_vline) (style, window, state_type, y1, y2, x);
}
void
gtk_draw_shadow (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (style != NULL);
g_return_if_fail (style->klass != NULL);
g_return_if_fail (style->klass->draw_shadow != NULL);
(*style->klass->draw_shadow) (style, window, state_type, shadow_type, x, y, width, height);
}
void
gtk_draw_polygon (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
GdkPoint *points,
gint npoints,
gint fill)
{
g_return_if_fail (style != NULL);
g_return_if_fail (style->klass != NULL);
g_return_if_fail (style->klass->draw_shadow != NULL);
(*style->klass->draw_polygon) (style, window, state_type, shadow_type, points, npoints, fill);
}
void
gtk_draw_arrow (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkArrowType arrow_type,
gint fill,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (style != NULL);
g_return_if_fail (style->klass != NULL);
g_return_if_fail (style->klass->draw_arrow != NULL);
(*style->klass->draw_arrow) (style, window, state_type, shadow_type, arrow_type, fill, x, y, width, height);
}
void
gtk_draw_diamond (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (style != NULL);
g_return_if_fail (style->klass != NULL);
g_return_if_fail (style->klass->draw_diamond != NULL);
(*style->klass->draw_diamond) (style, window, state_type, shadow_type, x, y, width, height);
}
void
gtk_draw_oval (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (style != NULL);
g_return_if_fail (style->klass != NULL);
g_return_if_fail (style->klass->draw_oval != NULL);
(*style->klass->draw_oval) (style, window, state_type, shadow_type, x, y, width, height);
}
void
gtk_draw_string (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint x,
gint y,
const gchar *string)
{
g_return_if_fail (style != NULL);
g_return_if_fail (style->klass != NULL);
g_return_if_fail (style->klass->draw_oval != NULL);
(*style->klass->draw_string) (style, window, state_type, x, y, string);
}
static void
gtk_style_init (GtkStyle *style)
{
GdkGCValues gc_values;
GdkGCValuesMask gc_values_mask;
GdkColormap *colormap;
gint i;
g_return_if_fail (style != NULL);
if (style->attach_count == 0)
{
for (i = 0; i < 5; i++)
{
gtk_style_shade (&style->bg[i], &style->light[i], LIGHTNESS_MULT);
gtk_style_shade (&style->bg[i], &style->dark[i], DARKNESS_MULT);
style->mid[i].red = (style->light[i].red + style->dark[i].red) / 2;
style->mid[i].green = (style->light[i].green + style->dark[i].green) / 2;
style->mid[i].blue = (style->light[i].blue + style->dark[i].blue) / 2;
}
colormap = style->colormap;
gdk_color_black (colormap, &style->black);
gdk_color_white (colormap, &style->white);
gc_values_mask = GDK_GC_FOREGROUND | GDK_GC_FONT;
if (style->font->type == GDK_FONT_FONT)
{
gc_values.font = style->font;
}
else if (style->font->type == GDK_FONT_FONTSET)
{
gc_values.font = default_font;
}
gc_values.foreground = style->black;
style->black_gc = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
gc_values.foreground = style->white;
style->white_gc = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
for (i = 0; i < 5; i++)
{
if (!gdk_color_alloc (colormap, &style->fg[i]))
g_warning ("unable to allocate color: ( %d %d %d )",
style->fg[i].red, style->fg[i].green, style->fg[i].blue);
if (!gdk_color_alloc (colormap, &style->bg[i]))
g_warning ("unable to allocate color: ( %d %d %d )",
style->bg[i].red, style->bg[i].green, style->bg[i].blue);
if (!gdk_color_alloc (colormap, &style->light[i]))
g_warning ("unable to allocate color: ( %d %d %d )",
style->light[i].red, style->light[i].green, style->light[i].blue);
if (!gdk_color_alloc (colormap, &style->dark[i]))
g_warning ("unable to allocate color: ( %d %d %d )",
style->dark[i].red, style->dark[i].green, style->dark[i].blue);
if (!gdk_color_alloc (colormap, &style->mid[i]))
g_warning ("unable to allocate color: ( %d %d %d )",
style->mid[i].red, style->mid[i].green, style->mid[i].blue);
if (!gdk_color_alloc (colormap, &style->text[i]))
g_warning ("unable to allocate color: ( %d %d %d )",
style->text[i].red, style->text[i].green, style->text[i].blue);
if (!gdk_color_alloc (colormap, &style->base[i]))
g_warning ("unable to allocate color: ( %d %d %d )",
style->base[i].red, style->base[i].green, style->base[i].blue);
gc_values.foreground = style->fg[i];
style->fg_gc[i] = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
gc_values.foreground = style->bg[i];
style->bg_gc[i] = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
gc_values.foreground = style->light[i];
style->light_gc[i] = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
gc_values.foreground = style->dark[i];
style->dark_gc[i] = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
gc_values.foreground = style->mid[i];
style->mid_gc[i] = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
gc_values.foreground = style->text[i];
style->text_gc[i] = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
gc_values.foreground = style->base[i];
style->base_gc[i] = gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
}
}
}
static void
gtk_styles_init ()
{
if (initialize)
{
initialize = FALSE;
style_cache = g_cache_new ((GCacheNewFunc) gtk_style_new_from_key,
(GCacheDestroyFunc) gtk_style_destroy,
(GCacheDupFunc) gtk_style_key_dup,
(GCacheDestroyFunc) gtk_style_key_destroy,
(GHashFunc) gtk_style_key_hash,
(GHashFunc) gtk_style_value_hash,
(GCompareFunc) gtk_style_key_compare);
}
}
static void
gtk_style_remove (GtkStyle *style)
{
if (initialize)
gtk_styles_init ();
g_cache_remove (style_cache, style);
}
static GtkStyle*
gtk_style_find (GtkStyle *style,
GdkColormap *cmap,
gint depth)
{
GtkStyleKey key;
gint i;
if (initialize)
gtk_styles_init ();
for (i = 0; i < 5; i++)
{
key.fg[i] = style->fg[i];
key.bg[i] = style->bg[i];
key.text[i] = style->text[i];
key.base[i] = style->base[i];
key.bg_pixmap[i] = style->bg_pixmap[i];
}
key.font = style->font;
key.klass = style->klass;
key.depth = depth;
key.colormap = cmap;
style = g_cache_insert (style_cache, &key);
return style;
}
static GtkStyle*
gtk_style_new_from_key (GtkStyleKey *key)
{
GtkStyle *style;
GSList *list;
gint i;
style = NULL;
list = unattached_styles;
while (list)
{
style = list->data;
list = list->next;
if ((style->depth != -1) && (style->depth != key->depth))
{
style = NULL;
continue;
}
if (style->colormap && (style->colormap != key->colormap))
{
style = NULL;
continue;
}
if (style->klass != key->klass)
{
style = NULL;
continue;
}
if (!gdk_font_equal (style->font, key->font))
{
style = NULL;
continue;
}
for (i = 0; style && (i < 5); i++)
{
if (style->bg_pixmap[i] != key->bg_pixmap[i])
{
style = NULL;
continue;
}
if ((style->fg[i].red != key->fg[i].red) ||
(style->fg[i].green != key->fg[i].green) ||
(style->fg[i].blue != key->fg[i].blue))
{
style = NULL;
continue;
}
if ((style->bg[i].red != key->bg[i].red) ||
(style->bg[i].green != key->bg[i].green) ||
(style->bg[i].blue != key->bg[i].blue))
{
style = NULL;
continue;
}
if ((style->text[i].red != key->text[i].red) ||
(style->text[i].green != key->text[i].green) ||
(style->text[i].blue != key->text[i].blue))
{
style = NULL;
continue;
}
if ((style->base[i].red != key->base[i].red) ||
(style->base[i].green != key->base[i].green) ||
(style->base[i].blue != key->base[i].blue))
{
style = NULL;
continue;
}
}
if (style)
break;
}
if (!style)
{
style = g_new (GtkStyle, 1);
style->ref_count = 0;
style->attach_count = 0;
style->font = key->font;
gdk_font_ref (style->font);
style->depth = key->depth;
style->colormap = key->colormap;
style->klass = key->klass;
style->black.red = 0;
style->black.green = 0;
style->black.blue = 0;
style->white.red = 65535;
style->white.green = 65535;
style->white.blue = 65535;
style->black_gc = NULL;
style->white_gc = NULL;
for (i = 0; i < 5; i++)
{
style->fg[i] = key->fg[i];
style->bg[i] = key->bg[i];
style->text[i] = key->text[i];
style->base[i] = key->base[i];
}
for (i = 0; i < 5; i++)
style->bg_pixmap[i] = key->bg_pixmap[i];
for (i = 0; i < 5; i++)
{
style->fg_gc[i] = NULL;
style->bg_gc[i] = NULL;
style->light_gc[i] = NULL;
style->dark_gc[i] = NULL;
style->mid_gc[i] = NULL;
style->text_gc[i] = NULL;
style->base_gc[i] = NULL;
}
}
if (style->depth == -1)
style->depth = key->depth;
if (!style->colormap)
style->colormap = key->colormap;
gtk_style_init (style);
return style;
}
static GtkStyleKey*
gtk_style_key_dup (GtkStyleKey *key)
{
GtkStyleKey *new_key;
if (!key_mem_chunk)
key_mem_chunk = g_mem_chunk_new ("key mem chunk", sizeof (GtkStyleKey),
1024, G_ALLOC_AND_FREE);
new_key = g_chunk_new (GtkStyleKey, key_mem_chunk);
*new_key = *key;
return new_key;
}
static void
gtk_style_destroy (GtkStyle *style)
{
gint i;
if (style->ref_count != 0)
return;
if (style->attach_count > 0)
{
gtk_gc_release (style->black_gc);
gtk_gc_release (style->white_gc);
for (i = 0; i < 5; i++)
{
gtk_gc_release (style->fg_gc[i]);
gtk_gc_release (style->bg_gc[i]);
gtk_gc_release (style->light_gc[i]);
gtk_gc_release (style->dark_gc[i]);
gtk_gc_release (style->mid_gc[i]);
gtk_gc_release (style->text_gc[i]);
gtk_gc_release (style->base_gc[i]);
}
}
unattached_styles = g_slist_remove (unattached_styles, style);
if (style->font->type == GDK_FONT_FONT)
gdk_font_free (style->font);
else if (style->font->type == GDK_FONT_FONTSET)
gdk_fontset_free (style->font);
else
g_error("undefined font type\n");
g_free (style);
}
static void
gtk_style_key_destroy (GtkStyleKey *key)
{
g_mem_chunk_free (key_mem_chunk, key);
}
static guint
gtk_style_key_hash (GtkStyleKey *key)
{
guint hash_val;
gint i;
hash_val = 0;
for (i = 0; i < 5; i++)
{
hash_val += key->fg[i].red + key->fg[i].green + key->fg[i].blue;
hash_val += key->bg[i].red + key->bg[i].green + key->bg[i].blue;
hash_val += key->text[i].red + key->text[i].green + key->text[i].blue;
hash_val += key->base[i].red + key->base[i].green + key->base[i].blue;
}
hash_val += (guint) gdk_font_id (key->font);
hash_val += (guint) key->depth;
hash_val += (gulong) key->colormap;
hash_val += (gulong) key->klass;
return hash_val;
}
static guint
gtk_style_value_hash (GtkStyle *style)
{
guint hash_val;
gint i;
hash_val = 0;
for (i = 0; i < 5; i++)
{
hash_val += style->fg[i].red + style->fg[i].green + style->fg[i].blue;
hash_val += style->bg[i].red + style->bg[i].green + style->bg[i].blue;
hash_val += style->text[i].red + style->text[i].green + style->text[i].blue;
hash_val += style->base[i].red + style->base[i].green + style->base[i].blue;
}
hash_val += (guint) gdk_font_id (style->font);
hash_val += (gulong) style->klass;
return hash_val;
}
static gint
gtk_style_key_compare (GtkStyleKey *a,
GtkStyleKey *b)
{
gint i;
if (a->depth != b->depth)
return FALSE;
if (a->colormap != b->colormap)
return FALSE;
if (a->klass != b->klass)
return FALSE;
if (!gdk_font_equal (a->font, b->font))
return FALSE;
for (i = 0; i < 5; i++)
{
if (a->bg_pixmap[i] != b->bg_pixmap[i])
return FALSE;
if ((a->fg[i].red != b->fg[i].red) ||
(a->fg[i].green != b->fg[i].green) ||
(a->fg[i].blue != b->fg[i].blue))
return FALSE;
if ((a->bg[i].red != b->bg[i].red) ||
(a->bg[i].green != b->bg[i].green) ||
(a->bg[i].blue != b->bg[i].blue))
return FALSE;
if ((a->text[i].red != b->text[i].red) ||
(a->text[i].green != b->text[i].green) ||
(a->text[i].blue != b->text[i].blue))
return FALSE;
if ((a->base[i].red != b->base[i].red) ||
(a->base[i].green != b->base[i].green) ||
(a->base[i].blue != b->base[i].blue))
return FALSE;
}
return TRUE;
}
static void
gtk_default_draw_hline (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint x1,
gint x2,
gint y)
{
gint thickness_light;
gint thickness_dark;
gint i;
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
thickness_light = style->klass->ythickness / 2;
thickness_dark = style->klass->ythickness - thickness_light;
for (i = 0; i < thickness_dark; i++)
{
gdk_draw_line (window, style->light_gc[state_type], x2 - i - 1, y + i, x2, y + i);
gdk_draw_line (window, style->dark_gc[state_type], x1, y + i, x2 - i - 1, y + i);
}
y += thickness_dark;
for (i = 0; i < thickness_light; i++)
{
gdk_draw_line (window, style->dark_gc[state_type], x1, y + i, x1 + thickness_light - i - 1, y + i);
gdk_draw_line (window, style->light_gc[state_type], x1 + thickness_light - i - 1, y + i, x2, y + i);
}
}
static void
gtk_default_draw_vline (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint y1,
gint y2,
gint x)
{
gint thickness_light;
gint thickness_dark;
gint i;
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
thickness_light = style->klass->xthickness / 2;
thickness_dark = style->klass->xthickness - thickness_light;
for (i = 0; i < thickness_dark; i++)
{
gdk_draw_line (window, style->light_gc[state_type], x + i, y2 - i - 1, x + i, y2);
gdk_draw_line (window, style->dark_gc[state_type], x + i, y1, x + i, y2 - i - 1);
}
x += thickness_dark;
for (i = 0; i < thickness_light; i++)
{
gdk_draw_line (window, style->dark_gc[state_type], x + i, y1, x + i, y1 + thickness_light - i);
gdk_draw_line (window, style->light_gc[state_type], x + i, y1 + thickness_light - i, x + i, y2);
}
}
static void
gtk_default_draw_shadow (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height)
{
GdkGC *gc1;
GdkGC *gc2;
gint thickness_light;
gint thickness_dark;
gint i;
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
if ((width == -1) && (height == -1))
gdk_window_get_size (window, &width, &height);
else if (width == -1)
gdk_window_get_size (window, &width, NULL);
else if (height == -1)
gdk_window_get_size (window, NULL, &height);
switch (shadow_type)
{
case GTK_SHADOW_NONE:
gc1 = NULL;
gc2 = NULL;
break;
case GTK_SHADOW_IN:
case GTK_SHADOW_ETCHED_IN:
gc1 = style->light_gc[state_type];
gc2 = style->dark_gc[state_type];
break;
case GTK_SHADOW_OUT:
case GTK_SHADOW_ETCHED_OUT:
gc1 = style->dark_gc[state_type];
gc2 = style->light_gc[state_type];
break;
}
switch (shadow_type)
{
case GTK_SHADOW_NONE:
break;
case GTK_SHADOW_IN:
gdk_draw_line (window, gc1,
x, y + height - 1, x + width - 1, y + height - 1);
gdk_draw_line (window, gc1,
x + width - 1, y, x + width - 1, y + height - 1);
gdk_draw_line (window, style->bg_gc[state_type],
x + 1, y + height - 2, x + width - 2, y + height - 2);
gdk_draw_line (window, style->bg_gc[state_type],
x + width - 2, y + 1, x + width - 2, y + height - 2);
gdk_draw_line (window, style->black_gc,
x + 1, y + 1, x + width - 2, y + 1);
gdk_draw_line (window, style->black_gc,
x + 1, y + 1, x + 1, y + height - 2);
gdk_draw_line (window, gc2,
x, y, x + width - 1, y);
gdk_draw_line (window, gc2,
x, y, x, y + height - 1);
break;
case GTK_SHADOW_OUT:
gdk_draw_line (window, gc1,
x + 1, y + height - 2, x + width - 2, y + height - 2);
gdk_draw_line (window, gc1,
x + width - 2, y + 1, x + width - 2, y + height - 2);
gdk_draw_line (window, gc2,
x, y, x + width - 1, y);
gdk_draw_line (window, gc2,
x, y, x, y + height - 1);
gdk_draw_line (window, style->bg_gc[state_type],
x + 1, y + 1, x + width - 2, y + 1);
gdk_draw_line (window, style->bg_gc[state_type],
x + 1, y + 1, x + 1, y + height - 2);
gdk_draw_line (window, style->black_gc,
x, y + height - 1, x + width - 1, y + height - 1);
gdk_draw_line (window, style->black_gc,
x + width - 1, y, x + width - 1, y + height - 1);
break;
case GTK_SHADOW_ETCHED_IN:
case GTK_SHADOW_ETCHED_OUT:
thickness_light = 1;
thickness_dark = 1;
for (i = 0; i < thickness_dark; i++)
{
gdk_draw_line (window, gc1,
x + i,
y + height - i - 1,
x + width - i - 1,
y + height - i - 1);
gdk_draw_line (window, gc1,
x + width - i - 1,
y + i,
x + width - i - 1,
y + height - i - 1);
gdk_draw_line (window, gc2,
x + i,
y + i,
x + width - i - 2,
y + i);
gdk_draw_line (window, gc2,
x + i,
y + i,
x + i,
y + height - i - 2);
}
for (i = 0; i < thickness_light; i++)
{
gdk_draw_line (window, gc1,
x + thickness_dark + i,
y + thickness_dark + i,
x + width - thickness_dark - i - 1,
y + thickness_dark + i);
gdk_draw_line (window, gc1,
x + thickness_dark + i,
y + thickness_dark + i,
x + thickness_dark + i,
y + height - thickness_dark - i - 1);
gdk_draw_line (window, gc2,
x + thickness_dark + i,
y + height - thickness_light - i - 1,
x + width - thickness_light - 1,
y + height - thickness_light - i - 1);
gdk_draw_line (window, gc2,
x + width - thickness_light - i - 1,
y + thickness_dark + i,
x + width - thickness_light - i - 1,
y + height - thickness_light - 1);
}
break;
}
}
static void
gtk_default_draw_polygon (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
GdkPoint *points,
gint npoints,
gint fill)
{
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif /* M_PI */
#ifndef M_PI_4
#define M_PI_4 0.78539816339744830962
#endif /* M_PI_4 */
static const gdouble pi_over_4 = M_PI_4;
static const gdouble pi_3_over_4 = M_PI_4 * 3;
GdkGC *gc1;
GdkGC *gc2;
GdkGC *gc3;
GdkGC *gc4;
gdouble angle;
gint xadjust;
gint yadjust;
gint i;
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
g_return_if_fail (points != NULL);
switch (shadow_type)
{
case GTK_SHADOW_IN:
gc1 = style->bg_gc[state_type];
gc2 = style->dark_gc[state_type];
gc3 = style->light_gc[state_type];
gc4 = style->black_gc;
break;
case GTK_SHADOW_OUT:
gc1 = style->dark_gc[state_type];
gc2 = style->light_gc[state_type];
gc3 = style->black_gc;
gc4 = style->bg_gc[state_type];
break;
default:
return;
}
if (fill)
gdk_draw_polygon (window, style->bg_gc[state_type], TRUE, points, npoints);
npoints -= 1;
for (i = 0; i < npoints; i++)
{
if ((points[i].x == points[i+1].x) &&
(points[i].y == points[i+1].y))
{
angle = 0;
}
else
{
angle = atan2 (points[i+1].y - points[i].y,
points[i+1].x - points[i].x);
}
if ((angle > -pi_3_over_4) && (angle < pi_over_4))
{
while (angle < 0)
angle += M_PI;
while (angle > M_PI)
angle -= M_PI;
if ((angle > pi_3_over_4) || (angle < pi_over_4))
{
xadjust = 0;
yadjust = 1;
}
else
{
xadjust = 1;
yadjust = 0;
}
gdk_draw_line (window, gc1,
points[i].x-xadjust, points[i].y-yadjust,
points[i+1].x-xadjust, points[i+1].y-yadjust);
gdk_draw_line (window, gc3,
points[i].x, points[i].y,
points[i+1].x, points[i+1].y);
}
}
for (i = 0; i < npoints; i++)
{
if ((points[i].x == points[i+1].x) &&
(points[i].y == points[i+1].y))
{
angle = 0;
}
else
{
angle = atan2 (points[i+1].y - points[i].y,
points[i+1].x - points[i].x);
}
if ((angle <= -pi_3_over_4) || (angle >= pi_over_4))
{
while (angle < 0)
angle += M_PI;
while (angle > M_PI)
angle -= M_PI;
if ((angle > pi_3_over_4) || (angle < pi_over_4))
{
xadjust = 0;
yadjust = 1;
}
else
{
xadjust = 1;
yadjust = 0;
}
gdk_draw_line (window, gc4,
points[i].x+xadjust, points[i].y+yadjust,
points[i+1].x+xadjust, points[i+1].y+yadjust);
gdk_draw_line (window, gc2,
points[i].x, points[i].y,
points[i+1].x, points[i+1].y);
}
}
}
static void
gtk_default_draw_arrow (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkArrowType arrow_type,
gint fill,
gint x,
gint y,
gint width,
gint height)
{
GdkGC *gc1;
GdkGC *gc2;
GdkGC *gc3;
GdkGC *gc4;
gint half_width;
gint half_height;
GdkPoint points[3];
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
switch (shadow_type)
{
case GTK_SHADOW_IN:
gc1 = style->bg_gc[state_type];
gc2 = style->dark_gc[state_type];
gc3 = style->light_gc[state_type];
gc4 = style->black_gc;
break;
case GTK_SHADOW_OUT:
gc1 = style->dark_gc[state_type];
gc2 = style->light_gc[state_type];
gc3 = style->black_gc;
gc4 = style->bg_gc[state_type];
break;
default:
return;
}
if ((width == -1) && (height == -1))
gdk_window_get_size (window, &width, &height);
else if (width == -1)
gdk_window_get_size (window, &width, NULL);
else if (height == -1)
gdk_window_get_size (window, NULL, &height);
half_width = width / 2;
half_height = height / 2;
switch (arrow_type)
{
case GTK_ARROW_UP:
if (fill)
{
points[0].x = x + half_width;
points[0].y = y;
points[1].x = x;
points[1].y = y + height - 1;
points[2].x = x + width - 1;
points[2].y = y + height - 1;
gdk_draw_polygon (window, style->bg_gc[state_type], TRUE, points, 3);
}
gdk_draw_line (window, gc1,
x + 1, y + height - 2,
x + width - 2, y + height - 2);
gdk_draw_line (window, gc3,
x + 0, y + height - 1,
x + width - 1, y + height - 1);
gdk_draw_line (window, gc1,
x + width - 2, y + height - 1,
x + half_width, y + 1);
gdk_draw_line (window, gc3,
x + width - 1, y + height - 1,
x + half_width, y);
gdk_draw_line (window, gc4,
x + half_width, y + 1,
x + 1, y + height - 1);
gdk_draw_line (window, gc2,
x + half_width, y,
x, y + height - 1);
break;
case GTK_ARROW_DOWN:
if (fill)
{
points[0].x = x + width - 1;
points[0].y = y;
points[1].x = x;
points[1].y = y;
points[2].x = x + half_width;
points[2].y = y + height - 1;
gdk_draw_polygon (window, style->bg_gc[state_type], TRUE, points, 3);
}
gdk_draw_line (window, gc4,
x + width - 2,
y + 1, x + 1, y + 1);
gdk_draw_line (window, gc2,
x + width - 1, y,
x, y);
gdk_draw_line (window, gc4,
x + 1, y,
x + half_width, y + height - 2);
gdk_draw_line (window, gc2,
x, y,
x + half_width, y + height - 1);
gdk_draw_line (window, gc1,
x + half_width, y + height - 2,
x + width - 2, y);
gdk_draw_line (window, gc3,
x + half_width, y + height - 1,
x + width - 1, y);
break;
case GTK_ARROW_LEFT:
if (fill)
{
points[0].x = x;
points[0].y = y + half_height;
points[1].x = x + width - 1;
points[1].y = y + height - 1;
points[2].x = x + width - 1;
points[2].y = y;
gdk_draw_polygon (window, style->bg_gc[state_type], TRUE, points, 3);
}
gdk_draw_line (window, gc1,
x + 1, y + half_height,
x + width - 1, y + height - 1);
gdk_draw_line (window, gc3,
x, y + half_height,
x + width - 1, y + height - 1);
gdk_draw_line (window, gc1,
x + width - 2, y + height - 1,
x + width - 2, y + 1);
gdk_draw_line (window, gc3,
x + width - 1, y + height - 1,
x + width - 1, y);
gdk_draw_line (window, gc4,
x + width - 1, y + 1,
x + 1, y + half_width);
gdk_draw_line (window, gc2,
x + width - 1, y,
x, y + half_width);
break;
case GTK_ARROW_RIGHT:
if (fill)
{
points[0].x = x + width - 1;
points[0].y = y + half_height;
points[1].x = x;
points[1].y = y;
points[2].x = x;
points[2].y = y + height - 1;
gdk_draw_polygon (window, style->bg_gc[state_type], TRUE, points, 3);
}
gdk_draw_line (window, gc4,
x + width - 1, y + half_height,
x + 1, y + 1);
gdk_draw_line (window, gc2,
x + width - 1, y + half_height,
x, y);
gdk_draw_line (window, gc4,
x + 1, y + 1,
x + 1, y + height - 2);
gdk_draw_line (window, gc2,
x, y,
x, y + height - 1);
gdk_draw_line (window, gc1,
x + 1, y + height - 2,
x + width - 1, y + half_height);
gdk_draw_line (window, gc3,
x, y + height - 1,
x + width - 1, y + half_height);
break;
}
}
static void
gtk_default_draw_diamond (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height)
{
gint half_width;
gint half_height;
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
if ((width == -1) && (height == -1))
gdk_window_get_size (window, &width, &height);
else if (width == -1)
gdk_window_get_size (window, &width, NULL);
else if (height == -1)
gdk_window_get_size (window, NULL, &height);
half_width = width / 2;
half_height = height / 2;
switch (shadow_type)
{
case GTK_SHADOW_IN:
gdk_draw_line (window, style->bg_gc[state_type],
x + 2, y + half_height,
x + half_width, y + height - 2);
gdk_draw_line (window, style->bg_gc[state_type],
x + half_width, y + height - 2,
x + width - 2, y + half_height);
gdk_draw_line (window, style->light_gc[state_type],
x + 1, y + half_height,
x + half_width, y + height - 1);
gdk_draw_line (window, style->light_gc[state_type],
x + half_width, y + height - 1,
x + width - 1, y + half_height);
gdk_draw_line (window, style->light_gc[state_type],
x, y + half_height,
x + half_width, y + height);
gdk_draw_line (window, style->light_gc[state_type],
x + half_width, y + height,
x + width, y + half_height);
gdk_draw_line (window, style->black_gc,
x + 2, y + half_height,
x + half_width, y + 2);
gdk_draw_line (window, style->black_gc,
x + half_width, y + 2,
x + width - 2, y + half_height);
gdk_draw_line (window, style->dark_gc[state_type],
x + 1, y + half_height,
x + half_width, y + 1);
gdk_draw_line (window, style->dark_gc[state_type],
x + half_width, y + 1,
x + width - 1, y + half_height);
gdk_draw_line (window, style->dark_gc[state_type],
x, y + half_height,
x + half_width, y);
gdk_draw_line (window, style->dark_gc[state_type],
x + half_width, y,
x + width, y + half_height);
break;
case GTK_SHADOW_OUT:
gdk_draw_line (window, style->dark_gc[state_type],
x + 2, y + half_height,
x + half_width, y + height - 2);
gdk_draw_line (window, style->dark_gc[state_type],
x + half_width, y + height - 2,
x + width - 2, y + half_height);
gdk_draw_line (window, style->dark_gc[state_type],
x + 1, y + half_height,
x + half_width, y + height - 1);
gdk_draw_line (window, style->dark_gc[state_type],
x + half_width, y + height - 1,
x + width - 1, y + half_height);
gdk_draw_line (window, style->black_gc,
x, y + half_height,
x + half_width, y + height);
gdk_draw_line (window, style->black_gc,
x + half_width, y + height,
x + width, y + half_height);
gdk_draw_line (window, style->bg_gc[state_type],
x + 2, y + half_height,
x + half_width, y + 2);
gdk_draw_line (window, style->bg_gc[state_type],
x + half_width, y + 2,
x + width - 2, y + half_height);
gdk_draw_line (window, style->light_gc[state_type],
x + 1, y + half_height,
x + half_width, y + 1);
gdk_draw_line (window, style->light_gc[state_type],
x + half_width, y + 1,
x + width - 1, y + half_height);
gdk_draw_line (window, style->light_gc[state_type],
x, y + half_height,
x + half_width, y);
gdk_draw_line (window, style->light_gc[state_type],
x + half_width, y,
x + width, y + half_height);
break;
default:
break;
}
}
static void
gtk_default_draw_oval (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
GtkShadowType shadow_type,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
}
static void
gtk_default_draw_string (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type,
gint x,
gint y,
const gchar *string)
{
g_return_if_fail (style != NULL);
g_return_if_fail (window != NULL);
if (state_type == GTK_STATE_INSENSITIVE)
gdk_draw_string (window, style->font, style->white_gc, x + 1, y + 1, string);
gdk_draw_string (window, style->font, style->fg_gc[state_type], x, y, string);
}
static void
gtk_style_shade (GdkColor *a,
GdkColor *b,
gdouble k)
{
gdouble red;
gdouble green;
gdouble blue;
red = (gdouble) a->red / 65535.0;
green = (gdouble) a->green / 65535.0;
blue = (gdouble) a->blue / 65535.0;
rgb_to_hls (&red, &green, &blue);
green *= k;
if (green > 1.0)
green = 1.0;
else if (green < 0.0)
green = 0.0;
blue *= k;
if (blue > 1.0)
blue = 1.0;
else if (blue < 0.0)
blue = 0.0;
hls_to_rgb (&red, &green, &blue);
b->red = red * 65535.0;
b->green = green * 65535.0;
b->blue = blue * 65535.0;
}
static void
rgb_to_hls (gdouble *r,
gdouble *g,
gdouble *b)
{
gdouble min;
gdouble max;
gdouble red;
gdouble green;
gdouble blue;
gdouble h, l, s;
gdouble delta;
red = *r;
green = *g;
blue = *b;
if (red > green)
{
if (red > blue)
max = red;
else
max = blue;
if (green < blue)
min = green;
else
min = blue;
}
else
{
if (green > blue)
max = green;
else
max = blue;
if (red < blue)
min = red;
else
min = blue;
}
l = (max + min) / 2;
s = 0;
h = 0;
if (max != min)
{
if (l <= 0.5)
s = (max - min) / (max + min);
else
s = (max - min) / (2 - max - min);
delta = max -min;
if (red == max)
h = (green - blue) / delta;
else if (green == max)
h = 2 + (blue - red) / delta;
else if (blue == max)
h = 4 + (red - green) / delta;
h *= 60;
if (h < 0.0)
h += 360;
}
*r = h;
*g = l;
*b = s;
}
static void
hls_to_rgb (gdouble *h,
gdouble *l,
gdouble *s)
{
gdouble hue;
gdouble lightness;
gdouble saturation;
gdouble m1, m2;
gdouble r, g, b;
lightness = *l;
saturation = *s;
if (lightness <= 0.5)
m2 = lightness * (1 + saturation);
else
m2 = lightness + saturation - lightness * saturation;
m1 = 2 * lightness - m2;
if (saturation == 0)
{
*h = lightness;
*l = lightness;
*s = lightness;
}
else
{
hue = *h + 120;
while (hue > 360)
hue -= 360;
while (hue < 0)
hue += 360;
if (hue < 60)
r = m1 + (m2 - m1) * hue / 60;
else if (hue < 180)
r = m2;
else if (hue < 240)
r = m1 + (m2 - m1) * (240 - hue) / 60;
else
r = m1;
hue = *h;
while (hue > 360)
hue -= 360;
while (hue < 0)
hue += 360;
if (hue < 60)
g = m1 + (m2 - m1) * hue / 60;
else if (hue < 180)
g = m2;
else if (hue < 240)
g = m1 + (m2 - m1) * (240 - hue) / 60;
else
g = m1;
hue = *h - 120;
while (hue > 360)
hue -= 360;
while (hue < 0)
hue += 360;
if (hue < 60)
b = m1 + (m2 - m1) * hue / 60;
else if (hue < 180)
b = m2;
else if (hue < 240)
b = m1 + (m2 - m1) * (240 - hue) / 60;
else
b = m1;
*h = r;
*l = g;
*s = b;
}
}
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