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GtkStyleContext: handle prelight transitions

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This commit is contained in:
Carlos Garnacho 2010-11-24 23:21:28 +01:00
parent c90bee16ba
commit 3d956b10ee
1 changed files with 29 additions and 1 deletions
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30
gtk/gtkthemingengine.c
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@ -1588,7 +1588,8 @@ render_frame_internal (GtkThemingEngine *engine,
GdkRGBA *border_color; GdkRGBA *border_color;
GtkBorderStyle border_style; GtkBorderStyle border_style;
gint border_width, radius; gint border_width, radius;
gdouble d1, d2, m; gdouble progress, d1, d2, m;
gboolean running;
state = gtk_theming_engine_get_state (engine); state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get (engine, state, gtk_theming_engine_get (engine, state,
@ -1598,6 +1599,33 @@ render_frame_internal (GtkThemingEngine *engine,
"border-radius", &radius, "border-radius", &radius,
NULL); NULL);
running = gtk_theming_engine_state_is_running (engine, GTK_STATE_PRELIGHT, &progress);
if (running)
{
GtkStateFlags other_state;
GdkRGBA *other_color;
if (state & GTK_STATE_FLAG_PRELIGHT)
{
other_state = state & ~(GTK_STATE_FLAG_PRELIGHT);
progress = 1 - progress;
}
else
other_state = state | GTK_STATE_FLAG_PRELIGHT;
gtk_theming_engine_get (engine, other_state,
"border-color", &other_color,
NULL);
border_color->red = CLAMP (border_color->red + ((other_color->red - border_color->red) * progress), 0, 1);
border_color->green = CLAMP (border_color->green + ((other_color->green - border_color->green) * progress), 0, 1);
border_color->blue = CLAMP (border_color->blue + ((other_color->blue - border_color->blue) * progress), 0, 1);
border_color->alpha = CLAMP (border_color->alpha + ((other_color->alpha - border_color->alpha) * progress), 0, 1);
gdk_rgba_free (other_color);
}
cairo_save (cr); cairo_save (cr);
color_shade (border_color, 1.8, &lighter); color_shade (border_color, 1.8, &lighter);