forked from AuroraMiddleware/gtk
951 lines
26 KiB
C
951 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 "gtkcssimagevalueprivate.h"
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#include "gtkcssnumbervalueprivate.h"
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#include "gtkcsscolorvalueprivate.h"
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#include "gtkcssshadowvalueprivate.h"
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#include "gtkcsstransformvalueprivate.h"
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#include "gtkrendericonprivate.h"
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#include "gtkrenderborderprivate.h"
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#include "gtkrenderbackgroundprivate.h"
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#include "gtkrenderlayoutprivate.h"
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#include "gtkstylecontextprivate.h"
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#include "gtksettings.h"
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#include "gsk/gskroundedrectprivate.h"
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#include <gdk/gdktextureprivate.h>
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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static void
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gtk_do_render_icon (GtkStyleContext *context,
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cairo_t *cr,
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double x,
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double y,
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double width,
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double height)
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{
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GtkSnapshot *snapshot;
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GskRenderNode *node;
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snapshot = gtk_snapshot_new ();
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gtk_css_style_snapshot_icon (gtk_style_context_lookup_style (context), snapshot, width, height);
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node = gtk_snapshot_free_to_node (snapshot);
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if (node == NULL)
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return;
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cairo_save (cr);
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cairo_translate (cr, x, y);
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gsk_render_node_draw (node, cr);
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cairo_restore (cr);
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gsk_render_node_unref (node);
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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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* Deprecated: 4.10
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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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double x,
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double y,
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double width,
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double 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_icon (context, cr, x, y, width, height);
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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 radio button), 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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* Deprecated: 4.10
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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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double x,
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double y,
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double width,
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double 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_icon (context, cr, x, y, width, height);
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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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* Deprecated: 4.10
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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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double angle,
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double x,
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double y,
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double 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_icon (context, cr, x, y, size, 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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* Deprecated: 4.10
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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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double x,
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double y,
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double width,
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double height)
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{
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GtkSnapshot *snapshot;
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GskRenderNode *node;
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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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snapshot = gtk_snapshot_new ();
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gtk_snapshot_render_background (snapshot, context, x, y, width, height);
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node = gtk_snapshot_free_to_node (snapshot);
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if (node == NULL)
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return;
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cairo_save (cr);
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gsk_render_node_draw (node, cr);
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cairo_restore (cr);
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gsk_render_node_unref (node);
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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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* Deprecated: 4.10
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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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double x,
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double y,
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double width,
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double height)
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{
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GtkSnapshot *snapshot;
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GskRenderNode *node;
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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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snapshot = gtk_snapshot_new ();
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gtk_snapshot_render_frame (snapshot, context, x, y, width, height);
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node = gtk_snapshot_free_to_node (snapshot);
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if (node == NULL)
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return;
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cairo_save (cr);
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gsk_render_node_draw (node, cr);
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cairo_restore (cr);
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gsk_render_node_unref (node);
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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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* Deprecated: 4.10
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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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double x,
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double y,
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double width,
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double 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_icon (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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*
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* Typical focus rendering:
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*
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* 
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*
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* Deprecated: 4.10
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**/
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void
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gtk_render_focus (GtkStyleContext *context,
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cairo_t *cr,
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double x,
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double y,
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double width,
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double height)
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{
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GtkSnapshot *snapshot;
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GskRenderNode *node;
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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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snapshot = gtk_snapshot_new ();
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gtk_snapshot_render_frame (snapshot, context, x, y, width, height);
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node = gtk_snapshot_free_to_node (snapshot);
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if (node == NULL)
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return;
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cairo_save (cr);
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gsk_render_node_draw (node, cr);
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cairo_restore (cr);
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gsk_render_node_unref (node);
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}
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/**
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* gtk_render_layout:
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* @context: a `GtkStyleContext`
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* @cr: a `cairo_t`
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* @x: X origin
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* @y: Y origin
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* @layout: the `PangoLayout` to render
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*
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* Renders @layout on the coordinates @x, @y
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*
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* Deprecated: 4.10
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**/
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void
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gtk_render_layout (GtkStyleContext *context,
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cairo_t *cr,
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double x,
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double y,
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PangoLayout *layout)
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{
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GtkSnapshot *snapshot;
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GskRenderNode *node;
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g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
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g_return_if_fail (PANGO_IS_LAYOUT (layout));
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g_return_if_fail (cr != NULL);
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snapshot = gtk_snapshot_new ();
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gtk_snapshot_render_layout (snapshot, context, x, y, layout);
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node = gtk_snapshot_free_to_node (snapshot);
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if (node == NULL)
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return;
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cairo_save (cr);
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gsk_render_node_draw (node, cr);
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cairo_restore (cr);
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gsk_render_node_unref (node);
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}
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/**
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* gtk_render_line:
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* @context: a `GtkStyleContext`
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* @cr: a `cairo_t`
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* @x0: X coordinate for the origin of the line
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* @y0: Y coordinate for the origin of the line
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* @x1: X coordinate for the end of the line
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* @y1: Y coordinate for the end of the line
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*
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* Renders a line from (x0, y0) to (x1, y1).
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*
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* Deprecated: 4.10
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**/
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void
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gtk_render_line (GtkStyleContext *context,
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cairo_t *cr,
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double x0,
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double y0,
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double x1,
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double y1)
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{
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const GdkRGBA *color;
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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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cairo_save (cr);
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color = gtk_css_color_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_COLOR));
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cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
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cairo_set_line_width (cr, 1);
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cairo_move_to (cr, x0 + 0.5, y0 + 0.5);
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cairo_line_to (cr, x1 + 0.5, y1 + 0.5);
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gdk_cairo_set_source_rgba (cr, color);
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cairo_stroke (cr);
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cairo_restore (cr);
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}
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/**
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* gtk_render_handle:
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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 handle (as in `GtkPaned` and `GtkWindow`’s resize grip),
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* in the rectangle determined by @x, @y, @width, @height.
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*
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* Handles rendered for the paned and grip classes:
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*
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* 
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*
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* Deprecated: 4.10
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**/
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void
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gtk_render_handle (GtkStyleContext *context,
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cairo_t *cr,
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double x,
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double y,
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double width,
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double 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_render_background (context, cr, x, y, width, height);
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gtk_render_frame (context, cr, x, y, width, height);
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gtk_do_render_icon (context, cr, x, y, width, height);
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}
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/**
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* gtk_render_activity:
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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 activity indicator (such as in `GtkSpinner`).
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* The state %GTK_STATE_FLAG_CHECKED determines whether there is
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* activity going on.
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*
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* Deprecated: 4.10
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**/
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void
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gtk_render_activity (GtkStyleContext *context,
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cairo_t *cr,
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double x,
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double y,
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double width,
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double 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_icon (context, cr, x, y, width, height);
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}
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/**
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* gtk_render_icon:
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* @context: a `GtkStyleContext`
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* @cr: a `cairo_t`
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* @texture: a `GdkTexture` containing the icon to draw
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* @x: X position for the @texture
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* @y: Y position for the @texture
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*
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* Renders the icon in @texture at the specified @x and @y coordinates.
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*
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* This function will render the icon in @texture at exactly its size,
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* regardless of scaling factors, which may not be appropriate when
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* drawing on displays with high pixel densities.
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*
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* Deprecated: 4.10
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**/
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void
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gtk_render_icon (GtkStyleContext *context,
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cairo_t *cr,
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GdkTexture *texture,
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double x,
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double y)
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{
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GtkSnapshot *snapshot;
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GskRenderNode *node;
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snapshot = gtk_snapshot_new ();
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gtk_css_style_snapshot_icon_paintable (gtk_style_context_lookup_style (context),
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snapshot,
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GDK_PAINTABLE (texture),
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gdk_texture_get_width (texture),
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gdk_texture_get_height (texture));
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node = gtk_snapshot_free_to_node (snapshot);
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if (node == NULL)
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return;
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cairo_save (cr);
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cairo_translate (cr, x, y);
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gsk_render_node_draw (node, cr);
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cairo_restore (cr);
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}
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/**
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* gtk_snapshot_render_background:
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* @snapshot: a `GtkSnapshot`
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* @context: the style context that defines the background
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* @x: X origin of the rectangle
|
||
* @y: Y origin of the rectangle
|
||
* @width: rectangle width
|
||
* @height: rectangle height
|
||
*
|
||
* Creates a render node for the CSS background according to @context,
|
||
* and appends it to the current node of @snapshot, without changing
|
||
* the current node.
|
||
*
|
||
* Deprecated: 4.10
|
||
*/
|
||
void
|
||
gtk_snapshot_render_background (GtkSnapshot *snapshot,
|
||
GtkStyleContext *context,
|
||
double x,
|
||
double y,
|
||
double width,
|
||
double height)
|
||
{
|
||
GtkCssBoxes boxes;
|
||
|
||
g_return_if_fail (snapshot != NULL);
|
||
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
|
||
|
||
gtk_css_boxes_init_border_box (&boxes,
|
||
gtk_style_context_lookup_style (context),
|
||
x, y, width, height);
|
||
gtk_css_style_snapshot_background (&boxes, snapshot);
|
||
}
|
||
|
||
/**
|
||
* gtk_snapshot_render_frame:
|
||
* @snapshot: a `GtkSnapshot`
|
||
* @context: the style context that defines the frame
|
||
* @x: X origin of the rectangle
|
||
* @y: Y origin of the rectangle
|
||
* @width: rectangle width
|
||
* @height: rectangle height
|
||
*
|
||
* Creates a render node for the CSS border according to @context,
|
||
* and appends it to the current node of @snapshot, without changing
|
||
* the current node.
|
||
*
|
||
* Deprecated: 4.10
|
||
*/
|
||
void
|
||
gtk_snapshot_render_frame (GtkSnapshot *snapshot,
|
||
GtkStyleContext *context,
|
||
double x,
|
||
double y,
|
||
double width,
|
||
double height)
|
||
{
|
||
GtkCssBoxes boxes;
|
||
|
||
g_return_if_fail (snapshot != NULL);
|
||
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
|
||
|
||
gtk_css_boxes_init_border_box (&boxes,
|
||
gtk_style_context_lookup_style (context),
|
||
x, y, width, height);
|
||
gtk_css_style_snapshot_border (&boxes, snapshot);
|
||
}
|
||
|
||
/**
|
||
* gtk_snapshot_render_focus:
|
||
* @snapshot: a `GtkSnapshot`
|
||
* @context: the style context that defines the focus ring
|
||
* @x: X origin of the rectangle
|
||
* @y: Y origin of the rectangle
|
||
* @width: rectangle width
|
||
* @height: rectangle height
|
||
*
|
||
* Creates a render node for the focus outline according to @context,
|
||
* and appends it to the current node of @snapshot, without changing
|
||
* the current node.
|
||
*
|
||
* Deprecated: 4.10
|
||
*/
|
||
void
|
||
gtk_snapshot_render_focus (GtkSnapshot *snapshot,
|
||
GtkStyleContext *context,
|
||
double x,
|
||
double y,
|
||
double width,
|
||
double height)
|
||
{
|
||
GtkCssBoxes boxes;
|
||
|
||
g_return_if_fail (snapshot != NULL);
|
||
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
|
||
|
||
gtk_css_boxes_init_border_box (&boxes,
|
||
gtk_style_context_lookup_style (context),
|
||
x, y, width, height);
|
||
gtk_css_style_snapshot_outline (&boxes, snapshot);
|
||
}
|
||
|
||
/**
|
||
* gtk_snapshot_render_layout:
|
||
* @snapshot: a `GtkSnapshot`
|
||
* @context: the style context that defines the text
|
||
* @x: X origin of the rectangle
|
||
* @y: Y origin of the rectangle
|
||
* @layout: the `PangoLayout` to render
|
||
*
|
||
* Creates a render node for rendering @layout according to the style
|
||
* information in @context, and appends it to the current node of @snapshot,
|
||
* without changing the current node.
|
||
*
|
||
* Deprecated: 4.10
|
||
*/
|
||
void
|
||
gtk_snapshot_render_layout (GtkSnapshot *snapshot,
|
||
GtkStyleContext *context,
|
||
double x,
|
||
double y,
|
||
PangoLayout *layout)
|
||
{
|
||
GtkCssBoxes boxes;
|
||
|
||
g_return_if_fail (snapshot != NULL);
|
||
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
|
||
g_return_if_fail (PANGO_IS_LAYOUT (layout));
|
||
|
||
gtk_css_boxes_init_border_box (&boxes,
|
||
gtk_style_context_lookup_style (context),
|
||
x, y, 0, 0);
|
||
gtk_css_style_snapshot_layout (&boxes, snapshot, x, y, layout);
|
||
}
|
||
|
||
static void
|
||
draw_insertion_cursor (GtkStyleContext *context,
|
||
cairo_t *cr,
|
||
double x,
|
||
double y,
|
||
double width,
|
||
double height,
|
||
double aspect_ratio,
|
||
gboolean is_primary,
|
||
PangoDirection direction,
|
||
gboolean draw_arrow)
|
||
{
|
||
GdkRGBA primary_color;
|
||
GdkRGBA secondary_color;
|
||
int stem_width;
|
||
double angle;
|
||
double dx, dy;
|
||
double xx1, yy1, xx2, yy2;
|
||
|
||
cairo_save (cr);
|
||
cairo_new_path (cr);
|
||
|
||
_gtk_style_context_get_cursor_color (context, &primary_color, &secondary_color);
|
||
gdk_cairo_set_source_rgba (cr, is_primary ? &primary_color : &secondary_color);
|
||
|
||
stem_width = height * aspect_ratio + 1;
|
||
|
||
yy1 = y;
|
||
yy2 = y + height;
|
||
|
||
if (width < 0)
|
||
{
|
||
xx1 = x;
|
||
xx2 = x - width;
|
||
}
|
||
else
|
||
{
|
||
xx1 = x + width;
|
||
xx2 = x;
|
||
}
|
||
|
||
angle = atan2 (height, width);
|
||
|
||
dx = (stem_width/2.0) * cos (M_PI/2 - angle);
|
||
dy = (stem_width/2.0) * sin (M_PI/2 - angle);
|
||
|
||
if (draw_arrow)
|
||
{
|
||
if (direction == PANGO_DIRECTION_RTL)
|
||
{
|
||
double x0, y0, x1, y1, x2, y2;
|
||
|
||
x0 = xx2 - dx + 2 * dy;
|
||
y0 = yy2 - dy - 2 * dx;
|
||
|
||
x1 = x0 + 4 * dy;
|
||
y1 = y0 - 4 * dx;
|
||
x2 = x0 + 2 * dy - 3 * dx;
|
||
y2 = y0 - 2 * dx - 3 * dy;
|
||
|
||
cairo_move_to (cr, xx1 + dx, yy1 + dy);
|
||
cairo_line_to (cr, xx2 + dx, yy2 + dy);
|
||
cairo_line_to (cr, x2, y2);
|
||
cairo_line_to (cr, x1, y1);
|
||
cairo_line_to (cr, xx1 - dx, yy1 - dy);
|
||
}
|
||
else if (direction == PANGO_DIRECTION_LTR)
|
||
{
|
||
double x0, y0, x1, y1, x2, y2;
|
||
|
||
x0 = xx2 + dx + 2 * dy;
|
||
y0 = yy2 + dy - 2 * dx;
|
||
|
||
x1 = x0 + 4 * dy;
|
||
y1 = y0 - 4 * dx;
|
||
x2 = x0 + 2 * dy + 3 * dx;
|
||
y2 = y0 - 2 * dx + 3 * dy;
|
||
|
||
cairo_move_to (cr, xx1 - dx, yy1 - dy);
|
||
cairo_line_to (cr, xx2 - dx, yy2 - dy);
|
||
cairo_line_to (cr, x2, y2);
|
||
cairo_line_to (cr, x1, y1);
|
||
cairo_line_to (cr, xx1 + dx, yy1 + dy);
|
||
}
|
||
else
|
||
g_assert_not_reached();
|
||
}
|
||
else
|
||
{
|
||
cairo_move_to (cr, xx1 + dx, yy1 + dy);
|
||
cairo_line_to (cr, xx2 + dx, yy2 + dy);
|
||
cairo_line_to (cr, xx2 - dx, yy2 - dy);
|
||
cairo_line_to (cr, xx1 - dx, yy1 - dy);
|
||
}
|
||
|
||
cairo_fill (cr);
|
||
|
||
cairo_restore (cr);
|
||
}
|
||
|
||
static void
|
||
get_insertion_cursor_bounds (double width,
|
||
double height,
|
||
double aspect_ratio,
|
||
PangoDirection direction,
|
||
gboolean draw_arrow,
|
||
graphene_rect_t *bounds)
|
||
{
|
||
int stem_width;
|
||
|
||
if (width < 0)
|
||
width = - width;
|
||
|
||
stem_width = height * aspect_ratio + 1;
|
||
|
||
graphene_rect_init (bounds,
|
||
- 2 * stem_width, - stem_width,
|
||
width + 4 * stem_width, height + 2 * stem_width);
|
||
}
|
||
|
||
static void
|
||
snapshot_insertion_cursor (GtkSnapshot *snapshot,
|
||
GtkStyleContext *context,
|
||
double width,
|
||
double height,
|
||
double aspect_ratio,
|
||
gboolean is_primary,
|
||
PangoDirection direction,
|
||
gboolean draw_arrow)
|
||
{
|
||
if (width != 0 || draw_arrow)
|
||
{
|
||
cairo_t *cr;
|
||
graphene_rect_t bounds;
|
||
|
||
get_insertion_cursor_bounds (width, height, aspect_ratio, direction, draw_arrow, &bounds);
|
||
cr = gtk_snapshot_append_cairo (snapshot, &bounds);
|
||
|
||
draw_insertion_cursor (context, cr, 0, 0, width, height, aspect_ratio, is_primary, direction, draw_arrow);
|
||
|
||
cairo_destroy (cr);
|
||
}
|
||
else
|
||
{
|
||
GdkRGBA primary_color;
|
||
GdkRGBA secondary_color;
|
||
int stem_width;
|
||
int offset;
|
||
|
||
_gtk_style_context_get_cursor_color (context, &primary_color, &secondary_color);
|
||
|
||
stem_width = height * aspect_ratio + 1;
|
||
|
||
/* put (stem_width % 2) on the proper side of the cursor */
|
||
if (direction == PANGO_DIRECTION_LTR)
|
||
offset = stem_width / 2;
|
||
else
|
||
offset = stem_width - stem_width / 2;
|
||
|
||
gtk_snapshot_append_color (snapshot,
|
||
is_primary ? &primary_color : &secondary_color,
|
||
&GRAPHENE_RECT_INIT (- offset, 0, stem_width, height));
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_snapshot_render_insertion_cursor:
|
||
* @snapshot: snapshot to render to
|
||
* @context: a `GtkStyleContext`
|
||
* @x: X origin
|
||
* @y: Y origin
|
||
* @layout: the `PangoLayout` of the text
|
||
* @index: the index in the `PangoLayout`
|
||
* @direction: the `PangoDirection` of the text
|
||
*
|
||
* Draws a text caret using @snapshot at the specified index of @layout.
|
||
*
|
||
* Deprecated: 4.10
|
||
*/
|
||
void
|
||
gtk_snapshot_render_insertion_cursor (GtkSnapshot *snapshot,
|
||
GtkStyleContext *context,
|
||
double x,
|
||
double y,
|
||
PangoLayout *layout,
|
||
int index,
|
||
PangoDirection direction)
|
||
{
|
||
GdkDisplay *display;
|
||
gboolean split_cursor;
|
||
double aspect_ratio;
|
||
PangoRectangle strong_pos, weak_pos;
|
||
PangoRectangle *cursor1, *cursor2;
|
||
GdkSeat *seat;
|
||
PangoDirection keyboard_direction;
|
||
PangoDirection direction2;
|
||
|
||
g_return_if_fail (snapshot != NULL);
|
||
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
|
||
g_return_if_fail (PANGO_IS_LAYOUT (layout));
|
||
g_return_if_fail (index >= 0);
|
||
|
||
display = gtk_style_context_get_display (context);
|
||
|
||
g_object_get (gtk_settings_get_for_display (display),
|
||
"gtk-split-cursor", &split_cursor,
|
||
"gtk-cursor-aspect-ratio", &aspect_ratio,
|
||
NULL);
|
||
|
||
keyboard_direction = PANGO_DIRECTION_LTR;
|
||
seat = gdk_display_get_default_seat (display);
|
||
if (seat)
|
||
{
|
||
GdkDevice *keyboard = gdk_seat_get_keyboard (seat);
|
||
|
||
if (keyboard)
|
||
keyboard_direction = gdk_device_get_direction (keyboard);
|
||
}
|
||
|
||
pango_layout_get_caret_pos (layout, index, &strong_pos, &weak_pos);
|
||
|
||
direction2 = PANGO_DIRECTION_NEUTRAL;
|
||
|
||
if (split_cursor)
|
||
{
|
||
cursor1 = &strong_pos;
|
||
|
||
if (strong_pos.x != weak_pos.x || strong_pos.y != weak_pos.y)
|
||
{
|
||
direction2 = (direction == PANGO_DIRECTION_LTR) ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR;
|
||
cursor2 = &weak_pos;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (keyboard_direction == direction)
|
||
cursor1 = &strong_pos;
|
||
else
|
||
cursor1 = &weak_pos;
|
||
}
|
||
|
||
gtk_snapshot_save (snapshot);
|
||
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (x + PANGO_PIXELS (MIN (cursor1->x, cursor1->x + cursor1->width)), y + PANGO_PIXELS (cursor1->y)));
|
||
snapshot_insertion_cursor (snapshot,
|
||
context,
|
||
PANGO_PIXELS (cursor1->width),
|
||
PANGO_PIXELS (cursor1->height),
|
||
aspect_ratio,
|
||
TRUE,
|
||
direction,
|
||
direction2 != PANGO_DIRECTION_NEUTRAL);
|
||
gtk_snapshot_restore (snapshot);
|
||
|
||
if (direction2 != PANGO_DIRECTION_NEUTRAL)
|
||
{
|
||
gtk_snapshot_save (snapshot);
|
||
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (x + PANGO_PIXELS (MIN (cursor2->x, cursor2->x + cursor2->width)), y + PANGO_PIXELS (cursor2->y)));
|
||
snapshot_insertion_cursor (snapshot,
|
||
context,
|
||
PANGO_PIXELS (cursor2->width),
|
||
PANGO_PIXELS (cursor2->height),
|
||
aspect_ratio,
|
||
FALSE,
|
||
direction2,
|
||
TRUE);
|
||
gtk_snapshot_restore (snapshot);
|
||
}
|
||
}
|