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Unify handling of prelighted icons

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Make GtkEntry use gtk_render_icon_pixbuf for rendering the
icons, and move the working icon prelighting code from GtkEntry
to GtkThemingEngine.

https://bugzilla.gnome.org/show_bug.cgi?id=636691
This commit is contained in:
Matthias Clasen 2011-01-14 23:51:41 -05:00
parent e9319c6182
commit 8e420bca02
2 changed files with 69 additions and 72 deletions
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85
gtk/gtkentry.c
View File

@ -3242,55 +3242,6 @@ gtk_entry_size_allocate (GtkWidget *widget,
}
}
/* Kudos to the gnome-panel guys. */
static void
colorshift_pixbuf (GdkPixbuf *dest,
GdkPixbuf *src,
gint shift)
{
gint i, j;
gint width, height, has_alpha, src_rowstride, dest_rowstride;
guchar *target_pixels;
guchar *original_pixels;
guchar *pix_src;
guchar *pix_dest;
int val;
guchar r, g, b;
has_alpha = gdk_pixbuf_get_has_alpha (src);
width = gdk_pixbuf_get_width (src);
height = gdk_pixbuf_get_height (src);
src_rowstride = gdk_pixbuf_get_rowstride (src);
dest_rowstride = gdk_pixbuf_get_rowstride (dest);
original_pixels = gdk_pixbuf_get_pixels (src);
target_pixels = gdk_pixbuf_get_pixels (dest);
for (i = 0; i < height; i++)
{
pix_dest = target_pixels + i * dest_rowstride;
pix_src = original_pixels + i * src_rowstride;
for (j = 0; j < width; j++)
{
r = *(pix_src++);
g = *(pix_src++);
b = *(pix_src++);
val = r + shift;
*(pix_dest++) = CLAMP (val, 0, 255);
val = g + shift;
*(pix_dest++) = CLAMP (val, 0, 255);
val = b + shift;
*(pix_dest++) = CLAMP (val, 0, 255);
if (has_alpha)
*(pix_dest++) = *(pix_src++);
}
}
}
static gboolean
should_prelight (GtkEntry *entry,
GtkEntryIconPosition icon_pos)
@ -3325,6 +3276,9 @@ draw_icon (GtkWidget *widget,
EntryIconInfo *icon_info = priv->icons[icon_pos];
GdkPixbuf *pixbuf;
gint x, y, width, height;
GtkStyleContext *context;
GtkIconSource *icon_source;
GtkStateFlags state;
if (!icon_info)
return;
@ -3360,28 +3314,23 @@ draw_icon (GtkWidget *widget,
x = (width - gdk_pixbuf_get_width (pixbuf)) / 2;
y = (height - gdk_pixbuf_get_height (pixbuf)) / 2;
if (!gtk_widget_is_sensitive (widget) ||
icon_info->insensitive)
{
GdkPixbuf *temp_pixbuf;
icon_source = gtk_icon_source_new ();
gtk_icon_source_set_pixbuf (icon_source, pixbuf);
gtk_icon_source_set_state_wildcarded (icon_source, TRUE);
temp_pixbuf = gdk_pixbuf_copy (pixbuf);
gdk_pixbuf_saturate_and_pixelate (pixbuf,
temp_pixbuf,
0.8f,
TRUE);
g_object_unref (pixbuf);
pixbuf = temp_pixbuf;
}
state = 0;
if (!gtk_widget_is_sensitive (widget) || icon_info->insensitive)
state |= GTK_STATE_FLAG_INSENSITIVE;
else if (icon_info->prelight)
{
GdkPixbuf *temp_pixbuf;
state |= GTK_STATE_FLAG_PRELIGHT;
temp_pixbuf = gdk_pixbuf_copy (pixbuf);
colorshift_pixbuf (temp_pixbuf, pixbuf, 30);
g_object_unref (pixbuf);
pixbuf = temp_pixbuf;
}
context = gtk_widget_get_style_context (widget);
gtk_style_context_save (context);
gtk_style_context_set_state (context, state);
pixbuf = gtk_render_icon_pixbuf (context, icon_source, (GtkIconSize)-1);
gtk_style_context_restore (context);
gtk_icon_source_free (icon_source);
gdk_cairo_set_source_pixbuf (cr, pixbuf, x, y);
cairo_paint (cr);

52
gtk/gtkthemingengine.c
View File

@ -3017,6 +3017,55 @@ lookup_icon_size (GtkThemingEngine *engine,
return gtk_icon_size_lookup_for_settings (settings, size, width, height);
}
/* Kudos to the gnome-panel guys. */
static void
colorshift_pixbuf (GdkPixbuf *src,
GdkPixbuf *dest,
gint shift)
{
gint i, j;
gint width, height, has_alpha, src_rowstride, dest_rowstride;
guchar *target_pixels;
guchar *original_pixels;
guchar *pix_src;
guchar *pix_dest;
int val;
guchar r, g, b;
has_alpha = gdk_pixbuf_get_has_alpha (src);
width = gdk_pixbuf_get_width (src);
height = gdk_pixbuf_get_height (src);
src_rowstride = gdk_pixbuf_get_rowstride (src);
dest_rowstride = gdk_pixbuf_get_rowstride (dest);
original_pixels = gdk_pixbuf_get_pixels (src);
target_pixels = gdk_pixbuf_get_pixels (dest);
for (i = 0; i < height; i++)
{
pix_dest = target_pixels + i * dest_rowstride;
pix_src = original_pixels + i * src_rowstride;
for (j = 0; j < width; j++)
{
r = *(pix_src++);
g = *(pix_src++);
b = *(pix_src++);
val = r + shift;
*(pix_dest++) = CLAMP (val, 0, 255);
val = g + shift;
*(pix_dest++) = CLAMP (val, 0, 255);
val = b + shift;
*(pix_dest++) = CLAMP (val, 0, 255);
if (has_alpha)
*(pix_dest++) = *(pix_src++);
}
}
}
static GdkPixbuf *
gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine,
const GtkIconSource *source,
@ -3063,8 +3112,7 @@ gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine,
else if (state & GTK_STATE_FLAG_PRELIGHT)
{
stated = gdk_pixbuf_copy (scaled);
gdk_pixbuf_saturate_and_pixelate (scaled, stated,
1.2, FALSE);
colorshift_pixbuf (scaled, stated, 30);
g_object_unref (scaled);
}
else