forked from AuroraMiddleware/gtk
4d9eedafcd
Instead of making people intiialize a rectangle and then applying border radius manually, provide a constructor that does it for them. While doing that, also allow people to instead request the padding box or the content box. Refactor all relevant code to use this new constructor.
916 lines
26 KiB
C
916 lines
26 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkrender.h"
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#include <math.h>
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#include "gtkcsscornervalueprivate.h"
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#include "gtkcssimagebuiltinprivate.h"
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#include "gtkcssimagevalueprivate.h"
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#include "gtkcssnumbervalueprivate.h"
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#include "gtkcssrgbavalueprivate.h"
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#include "gtkcssshadowsvalueprivate.h"
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#include "gtkcsstransformvalueprivate.h"
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#include "gtkhslaprivate.h"
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#include "gtkrenderbackgroundprivate.h"
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#include "gtkrenderborderprivate.h"
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#include "gtkrendericonprivate.h"
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#include "gtkstylecontextprivate.h"
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#include "gsk/gskroundedrectprivate.h"
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#include "fallback-c89.c"
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static void
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gtk_do_render_check (GtkStyleContext *context,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height)
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{
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GtkStateFlags state;
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GtkCssImageBuiltinType image_type;
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state = gtk_style_context_get_state (context);
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if (state & GTK_STATE_FLAG_INCONSISTENT)
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image_type = GTK_CSS_IMAGE_BUILTIN_CHECK_INCONSISTENT;
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else if (state & GTK_STATE_FLAG_CHECKED)
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image_type = GTK_CSS_IMAGE_BUILTIN_CHECK;
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else
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image_type = GTK_CSS_IMAGE_BUILTIN_NONE;
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gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, image_type);
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}
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/**
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* gtk_render_check:
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* @context: a #GtkStyleContext
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* @cr: a #cairo_t
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* @x: X origin of the rectangle
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* @y: Y origin of the rectangle
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* @width: rectangle width
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* @height: rectangle height
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*
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* Renders a checkmark (as in a #GtkCheckButton).
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*
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* The %GTK_STATE_FLAG_CHECKED state determines whether the check is
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* on or off, and %GTK_STATE_FLAG_INCONSISTENT determines whether it
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* should be marked as undefined.
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*
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* Typical checkmark rendering:
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*
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* 
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*
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* Since: 3.0
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**/
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void
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gtk_render_check (GtkStyleContext *context,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height)
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{
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g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
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g_return_if_fail (cr != NULL);
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if (width <= 0 || height <= 0)
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return;
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gtk_do_render_check (context, cr, x, y, width, height);
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}
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static void
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gtk_do_render_option (GtkStyleContext *context,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height)
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{
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GtkStateFlags state;
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GtkCssImageBuiltinType image_type;
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state = gtk_style_context_get_state (context);
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if (state & GTK_STATE_FLAG_INCONSISTENT)
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image_type = GTK_CSS_IMAGE_BUILTIN_OPTION_INCONSISTENT;
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else if (state & GTK_STATE_FLAG_CHECKED)
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image_type = GTK_CSS_IMAGE_BUILTIN_OPTION;
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else
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image_type = GTK_CSS_IMAGE_BUILTIN_NONE;
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gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, image_type);
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}
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/**
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* gtk_render_option:
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* @context: a #GtkStyleContext
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* @cr: a #cairo_t
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* @x: X origin of the rectangle
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* @y: Y origin of the rectangle
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* @width: rectangle width
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* @height: rectangle height
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*
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* Renders an option mark (as in a #GtkRadioButton), the %GTK_STATE_FLAG_CHECKED
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* state will determine whether the option is on or off, and
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* %GTK_STATE_FLAG_INCONSISTENT whether it should be marked as undefined.
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*
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* Typical option mark rendering:
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*
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* 
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*
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* Since: 3.0
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**/
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void
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gtk_render_option (GtkStyleContext *context,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height)
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{
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g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
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g_return_if_fail (cr != NULL);
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if (width <= 0 || height <= 0)
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return;
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gtk_do_render_option (context, cr, x, y, width, height);
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}
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static void
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gtk_do_render_arrow (GtkStyleContext *context,
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cairo_t *cr,
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gdouble angle,
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gdouble x,
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gdouble y,
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gdouble size)
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{
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GtkCssImageBuiltinType image_type;
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/* map [0, 2 * pi) to [0, 4) */
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angle = round (2 * angle / G_PI);
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switch (((int) angle) & 3)
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{
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case 0:
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image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_UP;
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break;
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case 1:
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image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_RIGHT;
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break;
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case 2:
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image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_DOWN;
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break;
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case 3:
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image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_LEFT;
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break;
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default:
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g_assert_not_reached ();
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image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_UP;
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break;
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}
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gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, size, size, image_type);
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}
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/**
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* gtk_render_arrow:
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* @context: a #GtkStyleContext
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* @cr: a #cairo_t
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* @angle: arrow angle from 0 to 2 * %G_PI, being 0 the arrow pointing to the north
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* @x: X origin of the render area
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* @y: Y origin of the render area
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* @size: square side for render area
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*
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* Renders an arrow pointing to @angle.
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*
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* Typical arrow rendering at 0, 1⁄2 π;, π; and 3⁄2 π:
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*
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* 
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*
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* Since: 3.0
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**/
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void
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gtk_render_arrow (GtkStyleContext *context,
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cairo_t *cr,
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gdouble angle,
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gdouble x,
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gdouble y,
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gdouble size)
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{
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g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
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g_return_if_fail (cr != NULL);
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if (size <= 0)
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return;
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gtk_do_render_arrow (context, cr, angle, x, y, size);
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}
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/**
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* gtk_render_background:
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* @context: a #GtkStyleContext
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* @cr: a #cairo_t
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* @x: X origin of the rectangle
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* @y: Y origin of the rectangle
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* @width: rectangle width
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* @height: rectangle height
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*
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* Renders the background of an element.
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*
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* Typical background rendering, showing the effect of
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* `background-image`, `border-width` and `border-radius`:
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*
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* 
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*
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* Since: 3.0.
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**/
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void
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gtk_render_background (GtkStyleContext *context,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height)
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{
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g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
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g_return_if_fail (cr != NULL);
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if (width <= 0 || height <= 0)
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return;
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gtk_css_style_render_background (gtk_style_context_lookup_style (context),
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cr, x, y, width, height);
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}
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/**
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* gtk_render_background_get_clip:
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* @context: a #GtkStyleContext
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* @x: X origin of the rectangle
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* @y: Y origin of the rectangle
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* @width: rectangle width
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* @height: rectangle height
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* @out_clip: (out): return location for the clip
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*
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* Returns the area that will be affected (i.e. drawn to) when
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* calling gtk_render_background() for the given @context and
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* rectangle.
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*
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* Since: 3.20
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*/
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void
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gtk_render_background_get_clip (GtkStyleContext *context,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height,
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GdkRectangle *out_clip)
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{
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GtkBorder shadow;
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_gtk_css_shadows_value_get_extents (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BOX_SHADOW), &shadow);
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out_clip->x = floor (x) - shadow.left;
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out_clip->y = floor (y) - shadow.top;
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out_clip->width = ceil (width) + shadow.left + shadow.right;
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out_clip->height = ceil (height) + shadow.top + shadow.bottom;
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}
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/**
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* gtk_render_frame:
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* @context: a #GtkStyleContext
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* @cr: a #cairo_t
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* @x: X origin of the rectangle
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* @y: Y origin of the rectangle
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* @width: rectangle width
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* @height: rectangle height
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*
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* Renders a frame around the rectangle defined by @x, @y, @width, @height.
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*
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* Examples of frame rendering, showing the effect of `border-image`,
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* `border-color`, `border-width`, `border-radius` and junctions:
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*
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* 
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*
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* Since: 3.0
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**/
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void
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gtk_render_frame (GtkStyleContext *context,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height)
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{
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g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
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g_return_if_fail (cr != NULL);
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if (width <= 0 || height <= 0)
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return;
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gtk_css_style_render_border (gtk_style_context_lookup_style (context),
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cr,
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x, y, width, height);
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}
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static void
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gtk_do_render_expander (GtkStyleContext *context,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height)
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{
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GtkCssImageBuiltinType image_type;
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GtkStateFlags state;
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state = gtk_style_context_get_state (context);
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if (gtk_style_context_has_class (context, "horizontal"))
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{
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if (state & GTK_STATE_FLAG_DIR_RTL)
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image_type = (state & GTK_STATE_FLAG_CHECKED)
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? GTK_CSS_IMAGE_BUILTIN_EXPANDER_HORIZONTAL_RIGHT_EXPANDED
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: GTK_CSS_IMAGE_BUILTIN_EXPANDER_HORIZONTAL_RIGHT;
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else
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image_type = (state & GTK_STATE_FLAG_CHECKED)
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? GTK_CSS_IMAGE_BUILTIN_EXPANDER_HORIZONTAL_LEFT_EXPANDED
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: GTK_CSS_IMAGE_BUILTIN_EXPANDER_HORIZONTAL_LEFT;
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}
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else
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{
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if (state & GTK_STATE_FLAG_DIR_RTL)
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image_type = (state & GTK_STATE_FLAG_CHECKED)
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? GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_RIGHT_EXPANDED
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: GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_RIGHT;
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else
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image_type = (state & GTK_STATE_FLAG_CHECKED)
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? GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_LEFT_EXPANDED
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: GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_LEFT;
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}
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gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, image_type);
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}
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/**
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* gtk_render_expander:
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* @context: a #GtkStyleContext
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* @cr: a #cairo_t
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* @x: X origin of the rectangle
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* @y: Y origin of the rectangle
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* @width: rectangle width
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* @height: rectangle height
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*
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* Renders an expander (as used in #GtkTreeView and #GtkExpander) in the area
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* defined by @x, @y, @width, @height. The state %GTK_STATE_FLAG_CHECKED
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* determines whether the expander is collapsed or expanded.
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*
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* Typical expander rendering:
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*
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* 
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*
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* Since: 3.0
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**/
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void
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gtk_render_expander (GtkStyleContext *context,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height)
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{
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g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
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g_return_if_fail (cr != NULL);
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if (width <= 0 || height <= 0)
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return;
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gtk_do_render_expander (context, cr, x, y, width, height);
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}
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/**
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* gtk_render_focus:
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* @context: a #GtkStyleContext
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* @cr: a #cairo_t
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* @x: X origin of the rectangle
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* @y: Y origin of the rectangle
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* @width: rectangle width
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* @height: rectangle height
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*
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* Renders a focus indicator on the rectangle determined by @x, @y, @width, @height.
|
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*
|
||
* Typical focus rendering:
|
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*
|
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* 
|
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*
|
||
* Since: 3.0
|
||
**/
|
||
void
|
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gtk_render_focus (GtkStyleContext *context,
|
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cairo_t *cr,
|
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gdouble x,
|
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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;
|
||
|
||
gtk_css_style_render_outline (gtk_style_context_lookup_style (context),
|
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cr,
|
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x, y, width, height);
|
||
}
|
||
|
||
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;
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||
|
||
cairo_save (cr);
|
||
fg_color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_COLOR));
|
||
|
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prepare_context_for_layout (cr, x, y, layout);
|
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|
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_gtk_css_shadows_value_paint_layout (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_TEXT_SHADOW),
|
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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);
|
||
|
||
gtk_do_render_layout (context, cr, x, y, layout);
|
||
}
|
||
|
||
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);
|
||
|
||
gtk_do_render_line (context, cr, x0, y0, x1, y1);
|
||
}
|
||
|
||
static void
|
||
gtk_do_render_slider (GtkStyleContext *context,
|
||
cairo_t *cr,
|
||
gdouble x,
|
||
gdouble y,
|
||
gdouble width,
|
||
gdouble height,
|
||
GtkOrientation orientation)
|
||
{
|
||
GtkCssStyle *style;
|
||
|
||
style = gtk_style_context_lookup_style (context);
|
||
|
||
gtk_css_style_render_background (style,
|
||
cr,
|
||
x, y, width, height);
|
||
gtk_css_style_render_border (style,
|
||
cr,
|
||
x, y, width, height);
|
||
}
|
||
|
||
/**
|
||
* 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;
|
||
|
||
gtk_do_render_slider (context, cr, x, y, width, height, orientation);
|
||
}
|
||
|
||
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)
|
||
{
|
||
gint border_width;
|
||
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);
|
||
|
||
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;
|
||
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;
|
||
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);
|
||
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);
|
||
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);
|
||
|
||
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);
|
||
|
||
gtk_css_style_render_frame_gap (gtk_style_context_lookup_style (context),
|
||
cr,
|
||
x, y, width, height, gap_side,
|
||
xy0_gap, xy1_gap);
|
||
}
|
||
|
||
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_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;
|
||
|
||
gtk_do_render_handle (context, cr, x, y, width, height);
|
||
}
|
||
|
||
/**
|
||
* 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;
|
||
|
||
gtk_css_style_render_icon (gtk_style_context_lookup_style (context), cr, x, y, width, height, GTK_CSS_IMAGE_BUILTIN_SPINNER);
|
||
}
|
||
|
||
/**
|
||
* 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.
|
||
*
|
||
* This function will render the icon in @pixbuf at exactly its size,
|
||
* regardless of scaling factors, which may not be appropriate when
|
||
* drawing on displays with high pixel densities.
|
||
*
|
||
* You probably want to use gtk_render_icon_surface() instead, if you
|
||
* already have a Cairo surface.
|
||
*
|
||
* 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);
|
||
|
||
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);
|
||
}
|
||
|
||
/**
|
||
* 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);
|
||
|
||
gtk_css_style_render_icon_surface (gtk_style_context_lookup_style (context),
|
||
cr,
|
||
surface,
|
||
x, y);
|
||
}
|
||
|