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themingengine: use outlines to render focus rings

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Instead of the old non-CSS implementation. This allows us to get rid of
the very last piece of custom theming in Adwaita.
This commit is contained in:
Cosimo Cecchi 2014-05-01 18:12:35 +02:00
parent e8cbbedbb2
commit 489970bcdc
3 changed files with 40 additions and 74 deletions
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15
gtk/gtkroundedbox.c
View File

@ -138,6 +138,21 @@ _gtk_rounded_box_apply_border_radius_for_engine (GtkRoundedBox *box,
_gtk_rounded_box_apply_border_radius_for_context (box, _gtk_theming_engine_get_context (engine), junction);
}
void
_gtk_rounded_box_apply_outline_radius_for_engine (GtkRoundedBox *box,
GtkThemingEngine *engine,
GtkJunctionSides junction)
{
GtkCssValue *corner[4];
corner[GTK_CSS_TOP_LEFT] = _gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_TOP_LEFT_RADIUS);
corner[GTK_CSS_TOP_RIGHT] = _gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_TOP_RIGHT_RADIUS);
corner[GTK_CSS_BOTTOM_LEFT] = _gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_BOTTOM_LEFT_RADIUS);
corner[GTK_CSS_BOTTOM_RIGHT] = _gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_BOTTOM_RIGHT_RADIUS);
_gtk_rounded_box_apply_border_radius (box, corner, junction);
}
static void
gtk_css_border_radius_grow (GtkRoundedBoxCorner *corner,
double horizontal,

4
gtk/gtkroundedboxprivate.h
View File

@ -54,6 +54,10 @@ void _gtk_rounded_box_apply_border_radius_for_context (GtkRoundedBox
GtkStyleContext *context,
GtkJunctionSides junction);
void _gtk_rounded_box_apply_outline_radius_for_engine (GtkRoundedBox *box,
GtkThemingEngine *engine,
GtkJunctionSides junction);
void _gtk_rounded_box_grow (GtkRoundedBox *box,
double top,
double right,

95
gtk/gtkthemingengine.c
View File

@ -1742,29 +1742,6 @@ render_frame_internal (GtkThemingEngine *engine,
render_border (cr, &border_box, border_width, hidden_side, colors, border_style);
}
border_style[0] = _gtk_css_border_style_value_get (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_STYLE));
if (border_style[0] != GTK_BORDER_STYLE_NONE)
{
int offset;
border_style[1] = border_style[2] = border_style[3] = border_style[0];
border_width[0] = _gtk_css_number_value_get (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_WIDTH), 100);
border_width[3] = border_width[2] = border_width[1] = border_width[0];
colors[0] = *_gtk_css_rgba_value_get_rgba (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_COLOR));
colors[3] = colors[2] = colors[1] = colors[0];
offset = _gtk_css_number_value_get (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_OFFSET), 100);
/* reinit box here - outlines don't have a border radius */
_gtk_rounded_box_init_rect (&border_box, x, y, width, height);
_gtk_rounded_box_shrink (&border_box,
- border_width[GTK_CSS_TOP] - offset,
- border_width[GTK_CSS_RIGHT] - offset,
- border_width[GTK_CSS_LEFT] - offset,
- border_width[GTK_CSS_BOTTOM] - offset);
render_border (cr, &border_box, border_width, hidden_side, colors, border_style);
}
}
static void
@ -1900,63 +1877,33 @@ gtk_theming_engine_render_focus (GtkThemingEngine *engine,
gdouble width,
gdouble height)
{
GtkStateFlags flags;
GdkRGBA color;
gint line_width;
gint8 *dash_list;
GtkBorderStyle border_style[4];
GtkRoundedBox border_box;
double border_width[4];
GdkRGBA colors[4];
cairo_save (cr);
flags = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get_color (engine, flags, &color);
gtk_theming_engine_get_style (engine,
"focus-line-width", &line_width,
"focus-line-pattern", (gchar *) &dash_list,
NULL);
cairo_set_line_width (cr, (gdouble) line_width);
if (dash_list[0])
border_style[0] = _gtk_css_border_style_value_get (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_STYLE));
if (border_style[0] != GTK_BORDER_STYLE_NONE)
{
gint n_dashes = strlen ((const gchar *) dash_list);
gdouble *dashes = g_new (gdouble, n_dashes);
gdouble total_length = 0;
gdouble dash_offset;
gint i;
int offset;
for (i = 0; i < n_dashes; i++)
{
dashes[i] = dash_list[i];
total_length += dash_list[i];
}
border_style[1] = border_style[2] = border_style[3] = border_style[0];
border_width[0] = _gtk_css_number_value_get (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_WIDTH), 100);
border_width[3] = border_width[2] = border_width[1] = border_width[0];
colors[0] = *_gtk_css_rgba_value_get_rgba (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_COLOR));
colors[3] = colors[2] = colors[1] = colors[0];
offset = _gtk_css_number_value_get (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_OUTLINE_OFFSET), 100);
/* The dash offset here aligns the pattern to integer pixels
* by starting the dash at the right side of the left border
* Negative dash offsets in cairo don't work
* (https://bugs.freedesktop.org/show_bug.cgi?id=2729)
*/
dash_offset = - line_width / 2.;
_gtk_rounded_box_init_rect (&border_box, x, y, width, height);
_gtk_rounded_box_apply_outline_radius_for_engine (&border_box, engine, GTK_JUNCTION_NONE);
_gtk_rounded_box_shrink (&border_box,
- border_width[GTK_CSS_TOP] - offset,
- border_width[GTK_CSS_RIGHT] - offset,
- border_width[GTK_CSS_LEFT] - offset,
- border_width[GTK_CSS_BOTTOM] - offset);
while (dash_offset < 0)
dash_offset += total_length;
cairo_set_dash (cr, dashes, n_dashes, dash_offset);
g_free (dashes);
render_border (cr, &border_box, border_width, 0, colors, border_style);
}
cairo_rectangle (cr,
x + line_width / 2.,
y + line_width / 2.,
width - line_width,
height - line_width);
gdk_cairo_set_source_rgba (cr, &color);
cairo_stroke (cr);
cairo_restore (cr);
g_free (dash_list);
}
static void