1312 lines
		
	
	
		
			38 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1312 lines
		
	
	
		
			38 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* GTK - The GIMP Toolkit
 | ||
|  * Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
 | ||
|  *
 | ||
|  * This library is free software; you can redistribute it and/or
 | ||
|  * modify it under the terms of the GNU Lesser 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
 | ||
|  * Lesser General Public License for more details.
 | ||
|  *
 | ||
|  * You should have received a copy of the GNU Lesser General Public
 | ||
|  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 | ||
|  */
 | ||
| 
 | ||
| #include "config.h"
 | ||
| 
 | ||
| #include "gtkrender.h"
 | ||
| #include "gtkrenderprivate.h"
 | ||
| 
 | ||
| #include <math.h>
 | ||
| 
 | ||
| #include "gtkcsscornervalueprivate.h"
 | ||
| #include "gtkcssenumvalueprivate.h"
 | ||
| #include "gtkcssimagebuiltinprivate.h"
 | ||
| #include "gtkcssimagevalueprivate.h"
 | ||
| #include "gtkcssnumbervalueprivate.h"
 | ||
| #include "gtkcssrgbavalueprivate.h"
 | ||
| #include "gtkcssshadowsvalueprivate.h"
 | ||
| #include "gtkcsstransformvalueprivate.h"
 | ||
| #include "gtkhslaprivate.h"
 | ||
| #include "gtkrenderbackgroundprivate.h"
 | ||
| #include "gtkrenderborderprivate.h"
 | ||
| #include "gtkrendericonprivate.h"
 | ||
| #include "gtkstylecontextprivate.h"
 | ||
| 
 | ||
| #include "fallback-c89.c"
 | ||
| 
 | ||
| static void
 | ||
| gtk_do_render_check (GtkStyleContext *context,
 | ||
|                      cairo_t         *cr,
 | ||
|                      gdouble          x,
 | ||
|                      gdouble          y,
 | ||
|                      gdouble          width,
 | ||
|                      gdouble          height)
 | ||
| {
 | ||
|   GtkStateFlags state;
 | ||
|   GtkCssImageBuiltinType image_type;
 | ||
| 
 | ||
|   state = gtk_style_context_get_state (context);
 | ||
|   if (state & GTK_STATE_FLAG_INCONSISTENT)
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_CHECK_INCONSISTENT;
 | ||
|   else if (state & GTK_STATE_FLAG_CHECKED)
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_CHECK_CHECKED;
 | ||
|   else
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_CHECK;
 | ||
| 
 | ||
|   gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, image_type);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_check:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  *
 | ||
|  * Renders a checkmark (as in a #GtkCheckButton).
 | ||
|  *
 | ||
|  * The %GTK_STATE_FLAG_CHECKED state determines whether the check is
 | ||
|  * on or off, and %GTK_STATE_FLAG_INCONSISTENT determines whether it
 | ||
|  * should be marked as undefined.
 | ||
|  *
 | ||
|  * Typical checkmark rendering:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_check (GtkStyleContext *context,
 | ||
|                   cairo_t         *cr,
 | ||
|                   gdouble          x,
 | ||
|                   gdouble          y,
 | ||
|                   gdouble          width,
 | ||
|                   gdouble          height)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_do_render_check (context, cr, x, y, width, height);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_do_render_option (GtkStyleContext *context,
 | ||
|                       cairo_t         *cr,
 | ||
|                       gdouble          x,
 | ||
|                       gdouble          y,
 | ||
|                       gdouble          width,
 | ||
|                       gdouble          height)
 | ||
| {
 | ||
|   GtkStateFlags state;
 | ||
|   GtkCssImageBuiltinType image_type;
 | ||
| 
 | ||
|   state = gtk_style_context_get_state (context);
 | ||
|   if (state & GTK_STATE_FLAG_INCONSISTENT)
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_OPTION_INCONSISTENT;
 | ||
|   else if (state & GTK_STATE_FLAG_CHECKED)
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_OPTION_CHECKED;
 | ||
|   else
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_OPTION;
 | ||
| 
 | ||
|   gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, image_type);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_option:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  *
 | ||
|  * Renders an option mark (as in a #GtkRadioButton), the %GTK_STATE_FLAG_CHECKED
 | ||
|  * state will determine whether the option is on or off, and
 | ||
|  * %GTK_STATE_FLAG_INCONSISTENT whether it should be marked as undefined.
 | ||
|  *
 | ||
|  * Typical option mark rendering:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_option (GtkStyleContext *context,
 | ||
|                    cairo_t         *cr,
 | ||
|                    gdouble          x,
 | ||
|                    gdouble          y,
 | ||
|                    gdouble          width,
 | ||
|                    gdouble          height)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_do_render_option (context, cr, x, y, width, height);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_do_render_arrow (GtkStyleContext *context,
 | ||
|                      cairo_t         *cr,
 | ||
|                      gdouble          angle,
 | ||
|                      gdouble          x,
 | ||
|                      gdouble          y,
 | ||
|                      gdouble          size)
 | ||
| {
 | ||
|   GtkCssImageBuiltinType image_type;
 | ||
| 
 | ||
|   /* map [0, 2 * pi) to [0, 4) */
 | ||
|   angle = round (2 * angle / G_PI);
 | ||
| 
 | ||
|   switch (((int) angle) & 3)
 | ||
|   {
 | ||
|   case 0:
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_UP;
 | ||
|     break;
 | ||
|   case 1:
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_RIGHT;
 | ||
|     break;
 | ||
|   case 2:
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_DOWN;
 | ||
|     break;
 | ||
|   case 3:
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_LEFT;
 | ||
|     break;
 | ||
|   default:
 | ||
|     g_assert_not_reached ();
 | ||
|     image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_UP;
 | ||
|     break;
 | ||
|   }
 | ||
| 
 | ||
|   gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, size, size, image_type);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_arrow:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @angle: arrow angle from 0 to 2 * %G_PI, being 0 the arrow pointing to the north
 | ||
|  * @x: X origin of the render area
 | ||
|  * @y: Y origin of the render area
 | ||
|  * @size: square side for render area
 | ||
|  *
 | ||
|  * Renders an arrow pointing to @angle.
 | ||
|  *
 | ||
|  * Typical arrow rendering at 0, 1&solidus;2 π, π and 3&solidus;2 π:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_arrow (GtkStyleContext *context,
 | ||
|                   cairo_t         *cr,
 | ||
|                   gdouble          angle,
 | ||
|                   gdouble          x,
 | ||
|                   gdouble          y,
 | ||
|                   gdouble          size)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (size <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_style_context_save (context);
 | ||
|   gtk_style_context_add_class (context, GTK_STYLE_CLASS_ARROW);
 | ||
| 
 | ||
|   gtk_do_render_arrow (context, cr, angle, x, y, size);
 | ||
| 
 | ||
|   gtk_style_context_restore (context);
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_background:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  *
 | ||
|  * Renders the background of an element.
 | ||
|  *
 | ||
|  * Typical background rendering, showing the effect of
 | ||
|  * `background-image`, `border-width` and `border-radius`:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0.
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_background (GtkStyleContext *context,
 | ||
|                        cairo_t         *cr,
 | ||
|                        gdouble          x,
 | ||
|                        gdouble          y,
 | ||
|                        gdouble          width,
 | ||
|                        gdouble          height)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_css_style_render_background (gtk_style_context_lookup_style (context),
 | ||
|                                    cr, x, y, width, height,
 | ||
|                                    gtk_style_context_get_junction_sides (context));
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_frame:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  *
 | ||
|  * Renders a frame around the rectangle defined by @x, @y, @width, @height.
 | ||
|  *
 | ||
|  * Examples of frame rendering, showing the effect of `border-image`,
 | ||
|  * `border-color`, `border-width`, `border-radius` and junctions:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_frame (GtkStyleContext *context,
 | ||
|                   cairo_t         *cr,
 | ||
|                   gdouble          x,
 | ||
|                   gdouble          y,
 | ||
|                   gdouble          width,
 | ||
|                   gdouble          height)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_css_style_render_border (gtk_style_context_lookup_style (context),
 | ||
|                                cr,
 | ||
|                                x, y, width, height,
 | ||
|                                0,
 | ||
|                                gtk_style_context_get_junction_sides (context));
 | ||
| 
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_do_render_expander (GtkStyleContext *context,
 | ||
|                         cairo_t         *cr,
 | ||
|                         gdouble          x,
 | ||
|                         gdouble          y,
 | ||
|                         gdouble          width,
 | ||
|                         gdouble          height)
 | ||
| {
 | ||
|   GtkCssImageBuiltinType image_type;
 | ||
|   GtkStateFlags state;
 | ||
| 
 | ||
|   state = gtk_style_context_get_state (context);
 | ||
|   if (gtk_style_context_has_class (context, "horizontal"))
 | ||
|     {
 | ||
|       if (state & GTK_STATE_FLAG_DIR_RTL)
 | ||
|         image_type = (state & GTK_STATE_FLAG_CHECKED)
 | ||
|                      ? GTK_CSS_IMAGE_BUILTIN_EXPANDER_HORIZONTAL_RIGHT_EXPANDED
 | ||
|                      : GTK_CSS_IMAGE_BUILTIN_EXPANDER_HORIZONTAL_RIGHT;
 | ||
|       else
 | ||
|         image_type = (state & GTK_STATE_FLAG_CHECKED)
 | ||
|                      ? GTK_CSS_IMAGE_BUILTIN_EXPANDER_HORIZONTAL_LEFT_EXPANDED
 | ||
|                      : GTK_CSS_IMAGE_BUILTIN_EXPANDER_HORIZONTAL_LEFT;
 | ||
|     }
 | ||
|   else
 | ||
|     {
 | ||
|       if (state & GTK_STATE_FLAG_DIR_RTL)
 | ||
|         image_type = (state & GTK_STATE_FLAG_CHECKED)
 | ||
|                      ? GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_RIGHT_EXPANDED
 | ||
|                      : GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_RIGHT;
 | ||
|       else
 | ||
|         image_type = (state & GTK_STATE_FLAG_CHECKED)
 | ||
|                      ? GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_LEFT_EXPANDED
 | ||
|                      : GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_LEFT;
 | ||
|     }
 | ||
| 
 | ||
|   gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, image_type);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_expander:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  *
 | ||
|  * Renders an expander (as used in #GtkTreeView and #GtkExpander) in the area
 | ||
|  * defined by @x, @y, @width, @height. The state %GTK_STATE_FLAG_CHECKED
 | ||
|  * determines whether the expander is collapsed or expanded.
 | ||
|  *
 | ||
|  * Typical expander rendering:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_expander (GtkStyleContext *context,
 | ||
|                      cairo_t         *cr,
 | ||
|                      gdouble          x,
 | ||
|                      gdouble          y,
 | ||
|                      gdouble          width,
 | ||
|                      gdouble          height)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_do_render_expander (context, cr, x, y, width, height);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_focus:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  *
 | ||
|  * Renders a focus indicator on the rectangle determined by @x, @y, @width, @height.
 | ||
|  *
 | ||
|  * Typical focus rendering:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_focus (GtkStyleContext *context,
 | ||
|                   cairo_t         *cr,
 | ||
|                   gdouble          x,
 | ||
|                   gdouble          y,
 | ||
|                   gdouble          width,
 | ||
|                   gdouble          height)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_css_style_render_outline (gtk_style_context_lookup_style (context),
 | ||
|                                 cr,
 | ||
|                                 x, y, width, height);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| prepare_context_for_layout (cairo_t *cr,
 | ||
|                             gdouble x,
 | ||
|                             gdouble y,
 | ||
|                             PangoLayout *layout)
 | ||
| {
 | ||
|   const PangoMatrix *matrix;
 | ||
| 
 | ||
|   matrix = pango_context_get_matrix (pango_layout_get_context (layout));
 | ||
| 
 | ||
|   cairo_move_to (cr, x, y);
 | ||
| 
 | ||
|   if (matrix)
 | ||
|     {
 | ||
|       cairo_matrix_t cairo_matrix;
 | ||
| 
 | ||
|       cairo_matrix_init (&cairo_matrix,
 | ||
|                          matrix->xx, matrix->yx,
 | ||
|                          matrix->xy, matrix->yy,
 | ||
|                          matrix->x0, matrix->y0);
 | ||
| 
 | ||
|       cairo_transform (cr, &cairo_matrix);
 | ||
|     }
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_do_render_layout (GtkStyleContext *context,
 | ||
|                       cairo_t         *cr,
 | ||
|                       gdouble          x,
 | ||
|                       gdouble          y,
 | ||
|                       PangoLayout     *layout)
 | ||
| {
 | ||
|   const GdkRGBA *fg_color;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   fg_color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_COLOR));
 | ||
| 
 | ||
|   prepare_context_for_layout (cr, x, y, layout);
 | ||
| 
 | ||
|   _gtk_css_shadows_value_paint_layout (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_TEXT_SHADOW),
 | ||
|                                        cr, layout);
 | ||
| 
 | ||
|   gdk_cairo_set_source_rgba (cr, fg_color);
 | ||
|   pango_cairo_show_layout (cr, layout);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_layout:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin
 | ||
|  * @y: Y origin
 | ||
|  * @layout: the #PangoLayout to render
 | ||
|  *
 | ||
|  * Renders @layout on the coordinates @x, @y
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_layout (GtkStyleContext *context,
 | ||
|                    cairo_t         *cr,
 | ||
|                    gdouble          x,
 | ||
|                    gdouble          y,
 | ||
|                    PangoLayout     *layout)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (PANGO_IS_LAYOUT (layout));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_do_render_layout (context, cr, x, y, layout);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_do_render_line (GtkStyleContext *context,
 | ||
|                     cairo_t         *cr,
 | ||
|                     gdouble          x0,
 | ||
|                     gdouble          y0,
 | ||
|                     gdouble          x1,
 | ||
|                     gdouble          y1)
 | ||
| {
 | ||
|   const GdkRGBA *color;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
| 
 | ||
|   color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_COLOR));
 | ||
| 
 | ||
|   cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
 | ||
|   cairo_set_line_width (cr, 1);
 | ||
| 
 | ||
|   cairo_move_to (cr, x0 + 0.5, y0 + 0.5);
 | ||
|   cairo_line_to (cr, x1 + 0.5, y1 + 0.5);
 | ||
| 
 | ||
|   gdk_cairo_set_source_rgba (cr, color);
 | ||
|   cairo_stroke (cr);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_line:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x0: X coordinate for the origin of the line
 | ||
|  * @y0: Y coordinate for the origin of the line
 | ||
|  * @x1: X coordinate for the end of the line
 | ||
|  * @y1: Y coordinate for the end of the line
 | ||
|  *
 | ||
|  * Renders a line from (x0, y0) to (x1, y1).
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_line (GtkStyleContext *context,
 | ||
|                  cairo_t         *cr,
 | ||
|                  gdouble          x0,
 | ||
|                  gdouble          y0,
 | ||
|                  gdouble          x1,
 | ||
|                  gdouble          y1)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_do_render_line (context, cr, x0, y0, x1, y1);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_do_render_slider (GtkStyleContext *context,
 | ||
|                       cairo_t         *cr,
 | ||
|                       gdouble          x,
 | ||
|                       gdouble          y,
 | ||
|                       gdouble          width,
 | ||
|                       gdouble          height,
 | ||
|                       GtkOrientation   orientation)
 | ||
| {
 | ||
|   GtkCssStyle *style;
 | ||
|   GtkJunctionSides junction;
 | ||
| 
 | ||
|   style = gtk_style_context_lookup_style (context);
 | ||
|   junction = gtk_style_context_get_junction_sides (context);
 | ||
| 
 | ||
|   gtk_css_style_render_background (style,
 | ||
|                                    cr,
 | ||
|                                    x, y, width, height,
 | ||
|                                    junction);
 | ||
|   gtk_css_style_render_border (style,
 | ||
|                                cr,
 | ||
|                                x, y, width, height,
 | ||
|                                0,
 | ||
|                                junction);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_slider:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  * @orientation: orientation of the slider
 | ||
|  *
 | ||
|  * Renders a slider (as in #GtkScale) in the rectangle defined by @x, @y,
 | ||
|  * @width, @height. @orientation defines whether the slider is vertical
 | ||
|  * or horizontal.
 | ||
|  *
 | ||
|  * Typical slider rendering:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_slider (GtkStyleContext *context,
 | ||
|                    cairo_t         *cr,
 | ||
|                    gdouble          x,
 | ||
|                    gdouble          y,
 | ||
|                    gdouble          width,
 | ||
|                    gdouble          height,
 | ||
|                    GtkOrientation   orientation)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_do_render_slider (context, cr, x, y, width, height, orientation);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_css_style_render_frame_gap (GtkCssStyle     *style,
 | ||
|                                 cairo_t         *cr,
 | ||
|                                 gdouble          x,
 | ||
|                                 gdouble          y,
 | ||
|                                 gdouble          width,
 | ||
|                                 gdouble          height,
 | ||
|                                 GtkPositionType  gap_side,
 | ||
|                                 gdouble          xy0_gap,
 | ||
|                                 gdouble          xy1_gap,
 | ||
|                                 GtkJunctionSides junction)
 | ||
| {
 | ||
|   gint border_width;
 | ||
|   GtkCssValue *corner[4];
 | ||
|   gdouble x0, y0, x1, y1, xc = 0.0, yc = 0.0, wc = 0.0, hc = 0.0;
 | ||
|   GtkBorder border;
 | ||
| 
 | ||
|   border.top = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_WIDTH), 100);
 | ||
|   border.right = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_WIDTH), 100);
 | ||
|   border.bottom = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_WIDTH), 100);
 | ||
|   border.left = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_WIDTH), 100);
 | ||
|   corner[GTK_CSS_TOP_LEFT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_LEFT_RADIUS);
 | ||
|   corner[GTK_CSS_TOP_RIGHT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_RIGHT_RADIUS);
 | ||
|   corner[GTK_CSS_BOTTOM_LEFT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_LEFT_RADIUS);
 | ||
|   corner[GTK_CSS_BOTTOM_RIGHT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_RIGHT_RADIUS);
 | ||
| 
 | ||
|   border_width = MIN (MIN (border.top, border.bottom),
 | ||
|                       MIN (border.left, border.right));
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
| 
 | ||
|   switch (gap_side)
 | ||
|     {
 | ||
|     case GTK_POS_TOP:
 | ||
|       xc = x + xy0_gap + border_width;
 | ||
|       yc = y;
 | ||
|       wc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
 | ||
|       hc = border_width;
 | ||
| 
 | ||
|       if (xy0_gap < _gtk_css_corner_value_get_x (corner[GTK_CSS_TOP_LEFT], width))
 | ||
|         junction |= GTK_JUNCTION_CORNER_TOPLEFT;
 | ||
| 
 | ||
|       if (xy1_gap > width - _gtk_css_corner_value_get_x (corner[GTK_CSS_TOP_RIGHT], width))
 | ||
|         junction |= GTK_JUNCTION_CORNER_TOPRIGHT;
 | ||
|       break;
 | ||
|     case GTK_POS_BOTTOM:
 | ||
|       xc = x + xy0_gap + border_width;
 | ||
|       yc = y + height - border_width;
 | ||
|       wc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
 | ||
|       hc = border_width;
 | ||
| 
 | ||
|       if (xy0_gap < _gtk_css_corner_value_get_x (corner[GTK_CSS_BOTTOM_LEFT], width))
 | ||
|         junction |= GTK_JUNCTION_CORNER_BOTTOMLEFT;
 | ||
| 
 | ||
|       if (xy1_gap > width - _gtk_css_corner_value_get_x (corner[GTK_CSS_BOTTOM_RIGHT], width))
 | ||
|         junction |= GTK_JUNCTION_CORNER_BOTTOMRIGHT;
 | ||
| 
 | ||
|       break;
 | ||
|     case GTK_POS_LEFT:
 | ||
|       xc = x;
 | ||
|       yc = y + xy0_gap + border_width;
 | ||
|       wc = border_width;
 | ||
|       hc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
 | ||
| 
 | ||
|       if (xy0_gap < _gtk_css_corner_value_get_y (corner[GTK_CSS_TOP_LEFT], height))
 | ||
|         junction |= GTK_JUNCTION_CORNER_TOPLEFT;
 | ||
| 
 | ||
|       if (xy1_gap > height - _gtk_css_corner_value_get_y (corner[GTK_CSS_BOTTOM_LEFT], height))
 | ||
|         junction |= GTK_JUNCTION_CORNER_BOTTOMLEFT;
 | ||
| 
 | ||
|       break;
 | ||
|     case GTK_POS_RIGHT:
 | ||
|       xc = x + width - border_width;
 | ||
|       yc = y + xy0_gap + border_width;
 | ||
|       wc = border_width;
 | ||
|       hc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
 | ||
| 
 | ||
|       if (xy0_gap < _gtk_css_corner_value_get_y (corner[GTK_CSS_TOP_RIGHT], height))
 | ||
|         junction |= GTK_JUNCTION_CORNER_TOPRIGHT;
 | ||
| 
 | ||
|       if (xy1_gap > height - _gtk_css_corner_value_get_y (corner[GTK_CSS_BOTTOM_RIGHT], height))
 | ||
|         junction |= GTK_JUNCTION_CORNER_BOTTOMRIGHT;
 | ||
| 
 | ||
|       break;
 | ||
|     }
 | ||
| 
 | ||
|   cairo_clip_extents (cr, &x0, &y0, &x1, &y1);
 | ||
|   cairo_rectangle (cr, x0, y0, x1 - x0, yc - y0);
 | ||
|   cairo_rectangle (cr, x0, yc, xc - x0, hc);
 | ||
|   cairo_rectangle (cr, xc + wc, yc, x1 - (xc + wc), hc);
 | ||
|   cairo_rectangle (cr, x0, yc + hc, x1 - x0, y1 - (yc + hc));
 | ||
|   cairo_clip (cr);
 | ||
| 
 | ||
|   gtk_css_style_render_border (style, cr,
 | ||
|                                x, y, width, height,
 | ||
|                                0, junction);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_frame_gap:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  * @gap_side: side where the gap is
 | ||
|  * @xy0_gap: initial coordinate (X or Y depending on @gap_side) for the gap
 | ||
|  * @xy1_gap: end coordinate (X or Y depending on @gap_side) for the gap
 | ||
|  *
 | ||
|  * Renders a frame around the rectangle defined by (@x, @y, @width, @height),
 | ||
|  * leaving a gap on one side. @xy0_gap and @xy1_gap will mean X coordinates
 | ||
|  * for %GTK_POS_TOP and %GTK_POS_BOTTOM gap sides, and Y coordinates for
 | ||
|  * %GTK_POS_LEFT and %GTK_POS_RIGHT.
 | ||
|  *
 | ||
|  * Typical rendering of a frame with a gap:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_frame_gap (GtkStyleContext *context,
 | ||
|                       cairo_t         *cr,
 | ||
|                       gdouble          x,
 | ||
|                       gdouble          y,
 | ||
|                       gdouble          width,
 | ||
|                       gdouble          height,
 | ||
|                       GtkPositionType  gap_side,
 | ||
|                       gdouble          xy0_gap,
 | ||
|                       gdouble          xy1_gap)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
|   g_return_if_fail (xy0_gap <= xy1_gap);
 | ||
|   g_return_if_fail (xy0_gap >= 0);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   if (gap_side == GTK_POS_LEFT ||
 | ||
|       gap_side == GTK_POS_RIGHT)
 | ||
|     g_return_if_fail (xy1_gap <= height);
 | ||
|   else
 | ||
|     g_return_if_fail (xy1_gap <= width);
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_css_style_render_frame_gap (gtk_style_context_lookup_style (context),
 | ||
|                                   cr,
 | ||
|                                   x, y, width, height, gap_side,
 | ||
|                                   xy0_gap, xy1_gap,
 | ||
|                                   gtk_style_context_get_junction_sides (context));
 | ||
| 
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_css_style_render_extension (GtkCssStyle     *style,
 | ||
|                                 cairo_t         *cr,
 | ||
|                                 gdouble          x,
 | ||
|                                 gdouble          y,
 | ||
|                                 gdouble          width,
 | ||
|                                 gdouble          height,
 | ||
|                                 GtkPositionType  gap_side)
 | ||
| {
 | ||
|   GtkJunctionSides junction = 0;
 | ||
|   guint hidden_side = 0;
 | ||
| 
 | ||
|   switch (gap_side)
 | ||
|     {
 | ||
|     case GTK_POS_LEFT:
 | ||
|       junction = GTK_JUNCTION_LEFT;
 | ||
|       hidden_side = (1 << GTK_CSS_LEFT);
 | ||
|       break;
 | ||
|     case GTK_POS_RIGHT:
 | ||
|       junction = GTK_JUNCTION_RIGHT;
 | ||
|       hidden_side = (1 << GTK_CSS_RIGHT);
 | ||
|       break;
 | ||
|     case GTK_POS_TOP:
 | ||
|       junction = GTK_JUNCTION_TOP;
 | ||
|       hidden_side = (1 << GTK_CSS_TOP);
 | ||
|       break;
 | ||
|     case GTK_POS_BOTTOM:
 | ||
|       junction = GTK_JUNCTION_BOTTOM;
 | ||
|       hidden_side = (1 << GTK_CSS_BOTTOM);
 | ||
|       break;
 | ||
|     }
 | ||
| 
 | ||
|   gtk_css_style_render_background (style,
 | ||
|                                    cr,
 | ||
|                                    x, y,
 | ||
|                                    width, height,
 | ||
|                                    junction);
 | ||
| 
 | ||
|   gtk_css_style_render_border (style, cr,
 | ||
|                                x, y, width, height,
 | ||
|                                hidden_side, junction);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_extension:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  * @gap_side: side where the gap is
 | ||
|  *
 | ||
|  * Renders a extension (as in a #GtkNotebook tab) in the rectangle
 | ||
|  * defined by @x, @y, @width, @height. The side where the extension
 | ||
|  * connects to is defined by @gap_side.
 | ||
|  *
 | ||
|  * Typical extension rendering:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_extension (GtkStyleContext *context,
 | ||
|                       cairo_t         *cr,
 | ||
|                       gdouble          x,
 | ||
|                       gdouble          y,
 | ||
|                       gdouble          width,
 | ||
|                       gdouble          height,
 | ||
|                       GtkPositionType  gap_side)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_css_style_render_extension (gtk_style_context_lookup_style (context),
 | ||
|                                   cr,
 | ||
|                                   x, y, width, height,
 | ||
|                                   gap_side);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| gtk_do_render_handle (GtkStyleContext *context,
 | ||
|                       cairo_t         *cr,
 | ||
|                       gdouble          x,
 | ||
|                       gdouble          y,
 | ||
|                       gdouble          width,
 | ||
|                       gdouble          height)
 | ||
| {
 | ||
|   GtkCssImageBuiltinType type;
 | ||
| 
 | ||
|   gtk_render_background (context, cr, x, y, width, height);
 | ||
|   gtk_render_frame (context, cr, x, y, width, height);
 | ||
| 
 | ||
|   if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_GRIP))
 | ||
|     {
 | ||
|       GtkJunctionSides sides = gtk_style_context_get_junction_sides (context);
 | ||
| 
 | ||
|       /* order is important here for when too many (or too few) sides are set */
 | ||
|       if ((sides & GTK_JUNCTION_CORNER_BOTTOMRIGHT) == GTK_JUNCTION_CORNER_BOTTOMRIGHT)
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_BOTTOMRIGHT;
 | ||
|       else if ((sides & GTK_JUNCTION_CORNER_TOPRIGHT) == GTK_JUNCTION_CORNER_TOPRIGHT)
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_TOPRIGHT;
 | ||
|       else if ((sides & GTK_JUNCTION_CORNER_BOTTOMLEFT) == GTK_JUNCTION_CORNER_BOTTOMLEFT)
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_BOTTOMLEFT;
 | ||
|       else if ((sides & GTK_JUNCTION_CORNER_TOPLEFT) == GTK_JUNCTION_CORNER_TOPLEFT)
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_TOPLEFT;
 | ||
|       else if (sides & GTK_JUNCTION_RIGHT)
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_RIGHT;
 | ||
|       else if (sides & GTK_JUNCTION_BOTTOM)
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_BOTTOM;
 | ||
|       else if (sides & GTK_JUNCTION_TOP)
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_TOP;
 | ||
|       else if (sides & GTK_JUNCTION_LEFT)
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_LEFT;
 | ||
|       else
 | ||
|         type = GTK_CSS_IMAGE_BUILTIN_GRIP_BOTTOMRIGHT;
 | ||
|     }
 | ||
|   else if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_PANE_SEPARATOR))
 | ||
|     {
 | ||
|       type = GTK_CSS_IMAGE_BUILTIN_PANE_SEPARATOR;
 | ||
|     }
 | ||
|   else
 | ||
|     {
 | ||
|       type = GTK_CSS_IMAGE_BUILTIN_HANDLE;
 | ||
|     }
 | ||
| 
 | ||
|   gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, type);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_handle:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  *
 | ||
|  * Renders a handle (as in #GtkHandleBox, #GtkPaned and
 | ||
|  * #GtkWindow’s resize grip), in the rectangle
 | ||
|  * determined by @x, @y, @width, @height.
 | ||
|  *
 | ||
|  * Handles rendered for the paned and grip classes:
 | ||
|  *
 | ||
|  * 
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_handle (GtkStyleContext *context,
 | ||
|                    cairo_t         *cr,
 | ||
|                    gdouble          x,
 | ||
|                    gdouble          y,
 | ||
|                    gdouble          width,
 | ||
|                    gdouble          height)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_do_render_handle (context, cr, x, y, width, height);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_activity:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @x: X origin of the rectangle
 | ||
|  * @y: Y origin of the rectangle
 | ||
|  * @width: rectangle width
 | ||
|  * @height: rectangle height
 | ||
|  *
 | ||
|  * Renders an activity indicator (such as in #GtkSpinner).
 | ||
|  * The state %GTK_STATE_FLAG_CHECKED determines whether there is
 | ||
|  * activity going on.
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_activity (GtkStyleContext *context,
 | ||
|                      cairo_t         *cr,
 | ||
|                      gdouble          x,
 | ||
|                      gdouble          y,
 | ||
|                      gdouble          width,
 | ||
|                      gdouble          height)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   if (width <= 0 || height <= 0)
 | ||
|     return;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, GTK_CSS_IMAGE_BUILTIN_SPINNER);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static void
 | ||
| colorshift_source (cairo_t *cr,
 | ||
| 		   gdouble shift)
 | ||
| {
 | ||
|   cairo_pattern_t *source;
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_paint (cr);
 | ||
| 
 | ||
|   source = cairo_pattern_reference (cairo_get_source (cr));
 | ||
| 
 | ||
|   cairo_set_source_rgb (cr, shift, shift, shift);
 | ||
|   cairo_set_operator (cr, CAIRO_OPERATOR_COLOR_DODGE);
 | ||
| 
 | ||
|   cairo_mask (cr, source);
 | ||
| 
 | ||
|   cairo_pattern_destroy (source);
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| static GdkPixbuf *
 | ||
| scale_or_ref (GdkPixbuf *src,
 | ||
|               gint       width,
 | ||
|               gint       height)
 | ||
| {
 | ||
|   if (width == gdk_pixbuf_get_width (src) &&
 | ||
|       height == gdk_pixbuf_get_height (src))
 | ||
|     return g_object_ref (src);
 | ||
|   else
 | ||
|     return gdk_pixbuf_scale_simple (src,
 | ||
|                                     width, height,
 | ||
|                                     GDK_INTERP_BILINEAR);
 | ||
| }
 | ||
| 
 | ||
| static GdkPixbuf *
 | ||
| gtk_do_render_icon_pixbuf (GtkStyleContext     *context,
 | ||
|                            const GtkIconSource *source,
 | ||
|                            GtkIconSize          size)
 | ||
| {
 | ||
|   GdkPixbuf *scaled;
 | ||
|   GdkPixbuf *stated;
 | ||
|   GdkPixbuf *base_pixbuf;
 | ||
|   GtkStateFlags state;
 | ||
|   gint width = 1;
 | ||
|   gint height = 1;
 | ||
|   cairo_t *cr;
 | ||
|   cairo_surface_t *surface;
 | ||
|   gboolean wildcarded;
 | ||
|   GtkCssImageEffect image_effect;
 | ||
| 
 | ||
|   G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
 | ||
|   base_pixbuf = gtk_icon_source_get_pixbuf (source);
 | ||
|   G_GNUC_END_IGNORE_DEPRECATIONS;
 | ||
| 
 | ||
|   state = gtk_style_context_get_state (context);
 | ||
| 
 | ||
|   g_return_val_if_fail (base_pixbuf != NULL, NULL);
 | ||
| 
 | ||
|   if (size != (GtkIconSize) -1 &&
 | ||
|       !gtk_icon_size_lookup (size, &width, &height))
 | ||
|     {
 | ||
|       g_warning (G_STRLOC ": invalid icon size '%d'", size);
 | ||
|       return NULL;
 | ||
|     }
 | ||
| 
 | ||
|   /* If the size was wildcarded, and we're allowed to scale, then scale; otherwise,
 | ||
|    * leave it alone.
 | ||
|    */
 | ||
|   G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
 | ||
|   wildcarded = gtk_icon_source_get_size_wildcarded (source);
 | ||
|   G_GNUC_END_IGNORE_DEPRECATIONS;
 | ||
|   if (size != (GtkIconSize) -1 && wildcarded)
 | ||
|     scaled = scale_or_ref (base_pixbuf, width, height);
 | ||
|   else
 | ||
|     scaled = g_object_ref (base_pixbuf);
 | ||
| 
 | ||
|   /* If the state was wildcarded, then generate a state. */
 | ||
|   G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
 | ||
|   wildcarded = gtk_icon_source_get_state_wildcarded (source);
 | ||
|   G_GNUC_END_IGNORE_DEPRECATIONS;
 | ||
| 
 | ||
|   if (!wildcarded)
 | ||
|     return scaled;
 | ||
| 
 | ||
|   image_effect = _gtk_css_image_effect_value_get
 | ||
|     (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_GTK_IMAGE_EFFECT));
 | ||
| 
 | ||
|   if (image_effect == GTK_CSS_IMAGE_EFFECT_DIM ||
 | ||
|       state & GTK_STATE_FLAG_INSENSITIVE)
 | ||
|     {
 | ||
|       surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
 | ||
| 					    gdk_pixbuf_get_width (scaled),
 | ||
| 					    gdk_pixbuf_get_height (scaled));
 | ||
|       cr = cairo_create (surface);
 | ||
|       gdk_cairo_set_source_pixbuf (cr, scaled, 0, 0);
 | ||
|       cairo_paint_with_alpha (cr, 0.5);
 | ||
| 
 | ||
|       cairo_destroy (cr);
 | ||
| 
 | ||
|       g_object_unref (scaled);
 | ||
|       stated = gdk_pixbuf_get_from_surface (surface, 0, 0,
 | ||
| 					    cairo_image_surface_get_width (surface),
 | ||
| 					    cairo_image_surface_get_height (surface));
 | ||
|       cairo_surface_destroy (surface);
 | ||
|     }
 | ||
|   else if (image_effect == GTK_CSS_IMAGE_EFFECT_HIGHLIGHT ||
 | ||
| 	   state & GTK_STATE_FLAG_PRELIGHT)
 | ||
|     {
 | ||
|       surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
 | ||
| 					    gdk_pixbuf_get_width (scaled),
 | ||
| 					    gdk_pixbuf_get_height (scaled));
 | ||
| 
 | ||
|       cr = cairo_create (surface);
 | ||
|       gdk_cairo_set_source_pixbuf (cr, scaled, 0, 0);
 | ||
|       colorshift_source (cr, 0.10);
 | ||
| 
 | ||
|       cairo_destroy (cr);
 | ||
| 
 | ||
|       g_object_unref (scaled);
 | ||
|       stated = gdk_pixbuf_get_from_surface (surface, 0, 0,
 | ||
| 					    cairo_image_surface_get_width (surface),
 | ||
| 					    cairo_image_surface_get_height (surface));
 | ||
|       cairo_surface_destroy (surface);
 | ||
|     }
 | ||
|   else
 | ||
|     stated = scaled;
 | ||
| 
 | ||
|   return stated;
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_icon_pixbuf:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @source: the #GtkIconSource specifying the icon to render
 | ||
|  * @size: (type int): the size to render the icon at. A size of (GtkIconSize) -1
 | ||
|  *        means render at the size of the source and don’t scale.
 | ||
|  *
 | ||
|  * Renders the icon specified by @source at the given @size, returning the result
 | ||
|  * in a pixbuf.
 | ||
|  *
 | ||
|  * Returns: (transfer full): a newly-created #GdkPixbuf containing the rendered icon
 | ||
|  *
 | ||
|  * Since: 3.0
 | ||
|  *
 | ||
|  * Deprecated: 3.10: Use gtk_icon_theme_load_icon() instead.
 | ||
|  **/
 | ||
| GdkPixbuf *
 | ||
| gtk_render_icon_pixbuf (GtkStyleContext     *context,
 | ||
|                         const GtkIconSource *source,
 | ||
|                         GtkIconSize          size)
 | ||
| {
 | ||
|   g_return_val_if_fail (GTK_IS_STYLE_CONTEXT (context), NULL);
 | ||
|   g_return_val_if_fail (size > GTK_ICON_SIZE_INVALID || size == -1, NULL);
 | ||
|   g_return_val_if_fail (source != NULL, NULL);
 | ||
| 
 | ||
|   return gtk_do_render_icon_pixbuf (context, source, size);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_icon:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @pixbuf: a #GdkPixbuf containing the icon to draw
 | ||
|  * @x: X position for the @pixbuf
 | ||
|  * @y: Y position for the @pixbuf
 | ||
|  *
 | ||
|  * Renders the icon in @pixbuf at the specified @x and @y coordinates.
 | ||
|  *
 | ||
|  * Since: 3.2
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_icon (GtkStyleContext *context,
 | ||
|                  cairo_t         *cr,
 | ||
|                  GdkPixbuf       *pixbuf,
 | ||
|                  gdouble          x,
 | ||
|                  gdouble          y)
 | ||
| {
 | ||
|   cairo_surface_t *surface;
 | ||
| 
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   surface = gdk_cairo_surface_create_from_pixbuf (pixbuf, 1, NULL);
 | ||
| 
 | ||
|   gtk_css_style_render_icon_surface (gtk_style_context_lookup_style (context),
 | ||
|                                      cr,
 | ||
|                                      surface,
 | ||
|                                      x, y);
 | ||
| 
 | ||
|   cairo_surface_destroy (surface);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /**
 | ||
|  * gtk_render_icon_surface:
 | ||
|  * @context: a #GtkStyleContext
 | ||
|  * @cr: a #cairo_t
 | ||
|  * @surface: a #cairo_surface_t containing the icon to draw
 | ||
|  * @x: X position for the @icon
 | ||
|  * @y: Y position for the @incon
 | ||
|  *
 | ||
|  * Renders the icon in @surface at the specified @x and @y coordinates.
 | ||
|  *
 | ||
|  * Since: 3.10
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_icon_surface (GtkStyleContext *context,
 | ||
| 			 cairo_t         *cr,
 | ||
| 			 cairo_surface_t *surface,
 | ||
| 			 gdouble          x,
 | ||
| 			 gdouble          y)
 | ||
| {
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   cairo_save (cr);
 | ||
|   cairo_new_path (cr);
 | ||
| 
 | ||
|   gtk_css_style_render_icon_surface (gtk_style_context_lookup_style (context),
 | ||
|                                      cr,
 | ||
|                                      surface,
 | ||
|                                      x, y);
 | ||
| 
 | ||
|   cairo_restore (cr);
 | ||
| }
 | ||
| 
 | ||
| /*
 | ||
|  * gtk_render_content_path:
 | ||
|  * @context: style context to get style information from
 | ||
|  * @cr: cairo context to add path to
 | ||
|  * @x: x coordinate of CSS box
 | ||
|  * @y: y coordinate of CSS box
 | ||
|  * @width: width of CSS box
 | ||
|  * @height: height of CSS box
 | ||
|  *
 | ||
|  * Adds the path of the content box to @cr for a given border box.
 | ||
|  * This function respects rounded corners.
 | ||
|  *
 | ||
|  * This is useful if you are drawing content that is supposed to
 | ||
|  * fill the whole content area, like the color buttons in
 | ||
|  * #GtkColorChooserDialog.
 | ||
|  **/
 | ||
| void
 | ||
| gtk_render_content_path (GtkStyleContext *context,
 | ||
|                          cairo_t         *cr,
 | ||
|                          double           x,
 | ||
|                          double           y,
 | ||
|                          double           width,
 | ||
|                          double           height)
 | ||
| {
 | ||
|   GtkRoundedBox box;
 | ||
| 
 | ||
|   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 | ||
|   g_return_if_fail (cr != NULL);
 | ||
| 
 | ||
|   _gtk_rounded_box_init_rect (&box, x, y, width, height);
 | ||
|   _gtk_rounded_box_apply_border_radius_for_style (&box, gtk_style_context_lookup_style (context), 0);
 | ||
| 
 | ||
|   _gtk_rounded_box_shrink (&box,
 | ||
|                            _gtk_css_number_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_TOP_WIDTH), 100)
 | ||
|                            + _gtk_css_number_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_PADDING_TOP), 100),
 | ||
|                            _gtk_css_number_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_RIGHT_WIDTH), 100)
 | ||
|                            + _gtk_css_number_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_PADDING_RIGHT), 100),
 | ||
|                            _gtk_css_number_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_BOTTOM_WIDTH), 100)
 | ||
|                            + _gtk_css_number_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_PADDING_BOTTOM), 100),
 | ||
|                            _gtk_css_number_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_LEFT_WIDTH), 100)
 | ||
|                            + _gtk_css_number_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_PADDING_LEFT), 100));
 | ||
| 
 | ||
|   _gtk_rounded_box_path (&box, cr);
 | ||
| }
 | 
