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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; coding: utf-8 -*-
* gtksourcegutterrendererpixbuf.c
* This file is part of GtkSourceView
*
* Copyright (C) 2010 - Jesse van den Kieboom
*
* GtkSourceView is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* GtkSourceView is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gtksourcegutterrendererpixbuf.h"
#include "gtksourceview-i18n.h"
#include "gtksourcepixbufhelper.h"
/**
* SECTION:gutterrendererpixbuf
* @Short_description: Renders a pixbuf in the gutter
* @Title: GtkSourceGutterRendererPixbuf
* @See_also: #GtkSourceGutterRenderer, #GtkSourceGutter
*
* A #GtkSourceGutterRendererPixbuf can be used to render an image in a cell of
* #GtkSourceGutter.
*/
struct _GtkSourceGutterRendererPixbufPrivate
{
GtkSourcePixbufHelper *helper;
};
G_DEFINE_TYPE_WITH_PRIVATE (GtkSourceGutterRendererPixbuf, gtk_source_gutter_renderer_pixbuf, GTK_SOURCE_TYPE_GUTTER_RENDERER)
enum
{
PROP_0,
PROP_PIXBUF,
PROP_STOCK_ID,
PROP_ICON_NAME,
PROP_GICON,
};
static void
center_on (GtkSourceGutterRenderer *renderer,
GdkRectangle *cell_area,
GtkTextIter *iter,
gint width,
gint height,
gfloat xalign,
gfloat yalign,
gint *x,
gint *y)
{
GtkTextView *view;
GtkTextWindowType window_type;
GdkRectangle buffer_location;
gint window_y;
view = gtk_source_gutter_renderer_get_view (renderer);
window_type = gtk_source_gutter_renderer_get_window_type (renderer);
gtk_text_view_get_iter_location (view, iter, &buffer_location);
gtk_text_view_buffer_to_window_coords (view,
window_type,
0, buffer_location.y,
NULL, &window_y);
*x = cell_area->x + (cell_area->width - width) * xalign;
*y = window_y + (buffer_location.height - height) * yalign;
}
static void
gutter_renderer_pixbuf_draw (GtkSourceGutterRenderer *renderer,
cairo_t *cr,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkTextIter *start,
GtkTextIter *end,
GtkSourceGutterRendererState state)
{
GtkSourceGutterRendererPixbuf *pix = GTK_SOURCE_GUTTER_RENDERER_PIXBUF (renderer);
gint width;
gint height;
gfloat xalign;
gfloat yalign;
GtkSourceGutterRendererAlignmentMode mode;
GtkTextView *view;
gint scale;
gint x = 0;
gint y = 0;
GdkPixbuf *pixbuf;
cairo_surface_t *surface;
/* Chain up to draw background */
if (GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_pixbuf_parent_class)->draw != NULL)
{
GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_pixbuf_parent_class)->draw (renderer,
cr,
background_area,
cell_area,
start,
end,
state);
}
view = gtk_source_gutter_renderer_get_view (renderer);
pixbuf = gtk_source_pixbuf_helper_render (pix->priv->helper,
GTK_WIDGET (view),
cell_area->width);
if (!pixbuf)
{
return;
}
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
/*
* We might have gotten a pixbuf back from the helper that will allow
* us to render for HiDPI. If we detect this, we pretend that we got a
* different size back and then gdk_cairo_surface_create_from_pixbuf()
* will take care of the rest.
*/
scale = gtk_widget_get_scale_factor (GTK_WIDGET (view));
if ((scale > 1) &&
((width > cell_area->width) || (height > cell_area->height)) &&
(width <= (cell_area->width * scale)) &&
(height <= (cell_area->height * scale)))
{
width = width / scale;
height = height / scale;
}
gtk_source_gutter_renderer_get_alignment (renderer,
&xalign,
&yalign);
mode = gtk_source_gutter_renderer_get_alignment_mode (renderer);
switch (mode)
{
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_CELL:
x = cell_area->x + (cell_area->width - width) * xalign;
y = cell_area->y + (cell_area->height - height) * yalign;
break;
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_FIRST:
center_on (renderer,
cell_area,
start,
width,
height,
xalign,
yalign,
&x,
&y);
break;
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_LAST:
center_on (renderer,
cell_area,
end,
width,
height,
xalign,
yalign,
&x,
&y);
break;
default:
g_assert_not_reached ();
}
surface = gdk_cairo_surface_create_from_pixbuf (pixbuf, scale, NULL);
cairo_set_source_surface (cr, surface, x, y);
cairo_paint (cr);
cairo_surface_destroy (surface);
}
static void
gtk_source_gutter_renderer_pixbuf_finalize (GObject *object)
{
GtkSourceGutterRendererPixbuf *renderer = GTK_SOURCE_GUTTER_RENDERER_PIXBUF (object);
gtk_source_pixbuf_helper_free (renderer->priv->helper);
G_OBJECT_CLASS (gtk_source_gutter_renderer_pixbuf_parent_class)->finalize (object);
}
static void
set_pixbuf (GtkSourceGutterRendererPixbuf *renderer,
GdkPixbuf *pixbuf)
{
gtk_source_pixbuf_helper_set_pixbuf (renderer->priv->helper,
pixbuf);
g_object_notify (G_OBJECT (renderer), "pixbuf");
gtk_source_gutter_renderer_queue_draw (GTK_SOURCE_GUTTER_RENDERER (renderer));
}
static void
set_stock_id (GtkSourceGutterRendererPixbuf *renderer,
const gchar *stock_id)
{
gtk_source_pixbuf_helper_set_stock_id (renderer->priv->helper,
stock_id);
g_object_notify (G_OBJECT (renderer), "stock-id");
gtk_source_gutter_renderer_queue_draw (GTK_SOURCE_GUTTER_RENDERER (renderer));
}
static void
set_gicon (GtkSourceGutterRendererPixbuf *renderer,
GIcon *icon)
{
gtk_source_pixbuf_helper_set_gicon (renderer->priv->helper,
icon);
g_object_notify (G_OBJECT (renderer), "gicon");
gtk_source_gutter_renderer_queue_draw (GTK_SOURCE_GUTTER_RENDERER (renderer));
}
static void
set_icon_name (GtkSourceGutterRendererPixbuf *renderer,
const gchar *icon_name)
{
gtk_source_pixbuf_helper_set_icon_name (renderer->priv->helper,
icon_name);
g_object_notify (G_OBJECT (renderer), "icon-name");
gtk_source_gutter_renderer_queue_draw (GTK_SOURCE_GUTTER_RENDERER (renderer));
}
static void
gtk_source_gutter_renderer_pixbuf_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkSourceGutterRendererPixbuf *renderer;
renderer = GTK_SOURCE_GUTTER_RENDERER_PIXBUF (object);
switch (prop_id)
{
case PROP_PIXBUF:
set_pixbuf (renderer, g_value_get_object (value));
break;
case PROP_STOCK_ID:
set_stock_id (renderer, g_value_get_string (value));
break;
case PROP_ICON_NAME:
set_icon_name (renderer, g_value_get_string (value));
break;
case PROP_GICON:
set_gicon (renderer, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_source_gutter_renderer_pixbuf_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkSourceGutterRendererPixbuf *renderer;
renderer = GTK_SOURCE_GUTTER_RENDERER_PIXBUF (object);
switch (prop_id)
{
case PROP_PIXBUF:
g_value_set_object (value,
gtk_source_pixbuf_helper_get_pixbuf (renderer->priv->helper));
break;
case PROP_STOCK_ID:
g_value_set_string (value,
gtk_source_pixbuf_helper_get_stock_id (renderer->priv->helper));
break;
case PROP_ICON_NAME:
g_value_set_string (value,
gtk_source_pixbuf_helper_get_icon_name (renderer->priv->helper));
break;
case PROP_GICON:
g_value_set_object (value,
gtk_source_pixbuf_helper_get_gicon (renderer->priv->helper));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_source_gutter_renderer_pixbuf_class_init (GtkSourceGutterRendererPixbufClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkSourceGutterRendererClass *renderer_class = GTK_SOURCE_GUTTER_RENDERER_CLASS (klass);
object_class->finalize = gtk_source_gutter_renderer_pixbuf_finalize;
object_class->get_property = gtk_source_gutter_renderer_pixbuf_get_property;
object_class->set_property = gtk_source_gutter_renderer_pixbuf_set_property;
renderer_class->draw = gutter_renderer_pixbuf_draw;
g_object_class_install_property (object_class,
PROP_PIXBUF,
g_param_spec_object ("pixbuf",
"Pixbuf",
"The pixbuf",
GDK_TYPE_PIXBUF,
G_PARAM_READWRITE));
/**
* GtkSourceGutterRendererPixbuf:stock-id:
*
* The stock id.
*
* Deprecated: 3.10: Don't use this property.
*/
g_object_class_install_property (object_class,
PROP_STOCK_ID,
g_param_spec_string ("stock-id",
"Stock Id",
"The stock id",
NULL,
G_PARAM_READWRITE | G_PARAM_DEPRECATED));
g_object_class_install_property (object_class,
PROP_ICON_NAME,
g_param_spec_string ("icon-name",
"Icon Name",
"The icon name",
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_GICON,
g_param_spec_object ("gicon",
"GIcon",
"The gicon",
G_TYPE_ICON,
G_PARAM_READWRITE));
}
static void
gtk_source_gutter_renderer_pixbuf_init (GtkSourceGutterRendererPixbuf *self)
{
self->priv = gtk_source_gutter_renderer_pixbuf_get_instance_private (self);
self->priv->helper = gtk_source_pixbuf_helper_new ();
}
/**
* gtk_source_gutter_renderer_pixbuf_new:
*
* Create a new #GtkSourceGutterRendererPixbuf.
*
* Returns: (transfer full): A #GtkSourceGutterRenderer
*
**/
GtkSourceGutterRenderer *
gtk_source_gutter_renderer_pixbuf_new (void)
{
return g_object_new (GTK_SOURCE_TYPE_GUTTER_RENDERER_PIXBUF, NULL);
}
/**
* gtk_source_gutter_renderer_pixbuf_set_pixbuf:
* @renderer: a #GtkSourceGutterRendererPixbuf
* @pixbuf: (nullable): the pixbuf, or %NULL.
*/
void
gtk_source_gutter_renderer_pixbuf_set_pixbuf (GtkSourceGutterRendererPixbuf *renderer,
GdkPixbuf *pixbuf)
{
g_return_if_fail (GTK_SOURCE_IS_GUTTER_RENDERER_PIXBUF (renderer));
g_return_if_fail (renderer == NULL || GDK_IS_PIXBUF (pixbuf));
set_pixbuf (renderer, pixbuf);
}
/**
* gtk_source_gutter_renderer_pixbuf_get_pixbuf:
* @renderer: a #GtkSourceGutterRendererPixbuf
*
* Get the pixbuf of the renderer.
*
* Returns: (transfer none): a #GdkPixbuf
*
**/
GdkPixbuf *
gtk_source_gutter_renderer_pixbuf_get_pixbuf (GtkSourceGutterRendererPixbuf *renderer)
{
g_return_val_if_fail (GTK_SOURCE_IS_GUTTER_RENDERER_PIXBUF (renderer), NULL);
return gtk_source_pixbuf_helper_get_pixbuf (renderer->priv->helper);
}
/**
* gtk_source_gutter_renderer_pixbuf_set_stock_id:
* @renderer: a #GtkSourceGutterRendererPixbuf
* @stock_id: (nullable): the stock id
*
* Deprecated: 3.10: Don't use this function.
*/
void
gtk_source_gutter_renderer_pixbuf_set_stock_id (GtkSourceGutterRendererPixbuf *renderer,
const gchar *stock_id)
{
g_return_if_fail (GTK_SOURCE_IS_GUTTER_RENDERER_PIXBUF_CLASS (renderer));
set_stock_id (renderer, stock_id);
}
/**
* gtk_source_gutter_renderer_pixbuf_get_stock_id:
* @renderer: a #GtkSourceGutterRendererPixbuf
*
* Returns: the stock id.
* Deprecated: 3.10: Don't use this function.
*/
const gchar *
gtk_source_gutter_renderer_pixbuf_get_stock_id (GtkSourceGutterRendererPixbuf *renderer)
{
g_return_val_if_fail (GTK_SOURCE_IS_GUTTER_RENDERER_PIXBUF (renderer), NULL);
return gtk_source_pixbuf_helper_get_stock_id (renderer->priv->helper);
}
/**
* gtk_source_gutter_renderer_pixbuf_set_gicon:
* @renderer: a #GtkSourceGutterRendererPixbuf
* @icon: (nullable): the icon, or %NULL.
*/
void
gtk_source_gutter_renderer_pixbuf_set_gicon (GtkSourceGutterRendererPixbuf *renderer,
GIcon *icon)
{
g_return_if_fail (GTK_SOURCE_IS_GUTTER_RENDERER_PIXBUF (renderer));
g_return_if_fail (icon == NULL || G_IS_ICON (icon));
set_gicon (renderer, icon);
}
/**
* gtk_source_gutter_renderer_pixbuf_get_gicon:
* @renderer: a #GtkSourceGutterRendererPixbuf
*
* Get the gicon of the renderer
*
* Returns: (transfer none): a #GIcon
*
**/
GIcon *
gtk_source_gutter_renderer_pixbuf_get_gicon (GtkSourceGutterRendererPixbuf *renderer)
{
g_return_val_if_fail (GTK_SOURCE_IS_GUTTER_RENDERER_PIXBUF (renderer), NULL);
return gtk_source_pixbuf_helper_get_gicon (renderer->priv->helper);
}
/**
* gtk_source_gutter_renderer_pixbuf_set_icon_name:
* @renderer: a #GtkSourceGutterRendererPixbuf
* @icon_name: (nullable): the icon name, or %NULL.
*/
void
gtk_source_gutter_renderer_pixbuf_set_icon_name (GtkSourceGutterRendererPixbuf *renderer,
const gchar *icon_name)
{
g_return_if_fail (GTK_SOURCE_IS_GUTTER_RENDERER_PIXBUF (renderer));
set_icon_name (renderer, icon_name);
}
const gchar *
gtk_source_gutter_renderer_pixbuf_get_icon_name (GtkSourceGutterRendererPixbuf *renderer)
{
g_return_val_if_fail (GTK_SOURCE_IS_GUTTER_RENDERER_PIXBUF (renderer), NULL);
return gtk_source_pixbuf_helper_get_icon_name (renderer->priv->helper);
}
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