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node-editor: Add renderings with alternative renderers

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That's pretty rough around the edges, but it mostly works.
Apart from sizing, screw listbox sizing.
This commit is contained in:
Benjamin Otte 2019-03-09 14:55:17 +01:00
parent 3f24ad741a
commit 00b947124f
5 changed files with 501 additions and 10 deletions
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323
demos/node-editor/gtkrendererpaintable.c Normal file
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@ -0,0 +1,323 @@
/*
* Copyright © 2019 Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtkrendererpaintableprivate.h"
#include <gtk/gtk.h>
struct _GtkRendererPaintable
{
GObject parent_instance;
GskRenderer *renderer;
GdkPaintable *paintable;
};
struct _GtkRendererPaintableClass
{
GObjectClass parent_class;
};
enum {
PROP_0,
PROP_PAINTABLE,
PROP_RENDERER,
N_PROPS
};
static GParamSpec *properties[N_PROPS] = { NULL, };
static void
gtk_renderer_paintable_paintable_snapshot (GdkPaintable *paintable,
GdkSnapshot *snapshot,
double width,
double height)
{
GtkRendererPaintable *self = GTK_RENDERER_PAINTABLE (paintable);
GtkSnapshot *node_snapshot;
GskRenderNode *node;
GdkTexture *texture;
if (self->paintable == NULL)
return;
if (self->renderer == NULL ||
!gsk_renderer_is_realized (self->renderer))
{
gdk_paintable_snapshot (self->paintable, snapshot, width, height);
return;
}
node_snapshot = gtk_snapshot_new ();
gdk_paintable_snapshot (self->paintable, node_snapshot, width, height);
node = gtk_snapshot_free_to_node (node_snapshot);
if (node == NULL)
return;
texture = gsk_renderer_render_texture (self->renderer,
node,
&GRAPHENE_RECT_INIT (0, 0, width, height));
gdk_paintable_snapshot (GDK_PAINTABLE (texture), snapshot, width, height);
g_object_unref (texture);
}
static int
gtk_renderer_paintable_paintable_get_intrinsic_width (GdkPaintable *paintable)
{
GtkRendererPaintable *self = GTK_RENDERER_PAINTABLE (paintable);
if (self->paintable == NULL)
return 0;
return gdk_paintable_get_intrinsic_width (self->paintable);
}
static int
gtk_renderer_paintable_paintable_get_intrinsic_height (GdkPaintable *paintable)
{
GtkRendererPaintable *self = GTK_RENDERER_PAINTABLE (paintable);
if (self->paintable == NULL)
return 0;
return gdk_paintable_get_intrinsic_height (self->paintable);
}
static double
gtk_renderer_paintable_paintable_get_intrinsic_aspect_ratio (GdkPaintable *paintable)
{
GtkRendererPaintable *self = GTK_RENDERER_PAINTABLE (paintable);
if (self->paintable == NULL)
return 0.0;
return gdk_paintable_get_intrinsic_aspect_ratio (self->paintable);
}
static void
gtk_renderer_paintable_paintable_init (GdkPaintableInterface *iface)
{
iface->snapshot = gtk_renderer_paintable_paintable_snapshot;
iface->get_intrinsic_width = gtk_renderer_paintable_paintable_get_intrinsic_width;
iface->get_intrinsic_height = gtk_renderer_paintable_paintable_get_intrinsic_height;
iface->get_intrinsic_aspect_ratio = gtk_renderer_paintable_paintable_get_intrinsic_aspect_ratio;
}
G_DEFINE_TYPE_EXTENDED (GtkRendererPaintable, gtk_renderer_paintable, G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
gtk_renderer_paintable_paintable_init))
static void
gtk_renderer_paintable_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkRendererPaintable *self = GTK_RENDERER_PAINTABLE (object);
switch (prop_id)
{
case PROP_PAINTABLE:
gtk_renderer_paintable_set_paintable (self, g_value_get_object (value));
break;
case PROP_RENDERER:
gtk_renderer_paintable_set_renderer (self, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_renderer_paintable_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkRendererPaintable *self = GTK_RENDERER_PAINTABLE (object);
switch (prop_id)
{
case PROP_PAINTABLE:
g_value_set_object (value, self->paintable);
break;
case PROP_RENDERER:
g_value_set_object (value, self->renderer);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_renderer_paintable_unset_paintable (GtkRendererPaintable *self)
{
guint flags;
if (self->paintable == NULL)
return;
flags = gdk_paintable_get_flags (self->paintable);
if ((flags & GDK_PAINTABLE_STATIC_CONTENTS) == 0)
g_signal_handlers_disconnect_by_func (self->paintable,
gdk_paintable_invalidate_contents,
self);
if ((flags & GDK_PAINTABLE_STATIC_SIZE) == 0)
g_signal_handlers_disconnect_by_func (self->paintable,
gdk_paintable_invalidate_size,
self);
g_clear_object (&self->paintable);
}
static void
gtk_renderer_paintable_dispose (GObject *object)
{
GtkRendererPaintable *self = GTK_RENDERER_PAINTABLE (object);
g_clear_object (&self->renderer);
gtk_renderer_paintable_unset_paintable (self);
G_OBJECT_CLASS (gtk_renderer_paintable_parent_class)->dispose (object);
}
static void
gtk_renderer_paintable_class_init (GtkRendererPaintableClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->get_property = gtk_renderer_paintable_get_property;
gobject_class->set_property = gtk_renderer_paintable_set_property;
gobject_class->dispose = gtk_renderer_paintable_dispose;
properties[PROP_PAINTABLE] =
g_param_spec_object ("paintable",
"Paintable",
"The paintable to be shown",
GDK_TYPE_PAINTABLE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
properties[PROP_RENDERER] =
g_param_spec_object ("renderer",
"Renderer",
"Renderer used to render the paintable",
GSK_TYPE_RENDERER,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (gobject_class, N_PROPS, properties);
}
static void
gtk_renderer_paintable_init (GtkRendererPaintable *self)
{
}
GdkPaintable *
gtk_renderer_paintable_new (GskRenderer *renderer,
GdkPaintable *paintable)
{
g_return_val_if_fail (renderer == NULL || GSK_IS_RENDERER (renderer), NULL);
g_return_val_if_fail (paintable == NULL || GDK_IS_PAINTABLE (paintable), NULL);
return g_object_new (GTK_TYPE_RENDERER_PAINTABLE,
"renderer", renderer,
"paintable", paintable,
NULL);
}
void
gtk_renderer_paintable_set_renderer (GtkRendererPaintable *self,
GskRenderer *renderer)
{
g_return_if_fail (GTK_IS_RENDERER_PAINTABLE (self));
g_return_if_fail (renderer == NULL || GSK_IS_RENDERER (renderer));
if (!g_set_object (&self->renderer, renderer))
return;
if (self->paintable)
gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_RENDERER]);
}
GskRenderer *
gtk_renderer_paintable_get_renderer (GtkRendererPaintable *self)
{
g_return_val_if_fail (GTK_IS_RENDERER_PAINTABLE (self), NULL);
return self->renderer;
}
void
gtk_renderer_paintable_set_paintable (GtkRendererPaintable *self,
GdkPaintable *paintable)
{
g_return_if_fail (GTK_IS_RENDERER_PAINTABLE (self));
g_return_if_fail (paintable == NULL || GDK_IS_PAINTABLE (paintable));
if (self->paintable == paintable)
return;
gtk_renderer_paintable_unset_paintable (self);
if (paintable)
{
const guint flags = gdk_paintable_get_flags (paintable);
self->paintable = g_object_ref (paintable);
if ((flags & GDK_PAINTABLE_STATIC_CONTENTS) == 0)
g_signal_connect_swapped (paintable,
"invalidate-contents",
G_CALLBACK (gdk_paintable_invalidate_contents),
self);
if ((flags & GDK_PAINTABLE_STATIC_SIZE) == 0)
g_signal_connect_swapped (paintable,
"invalidate-size",
G_CALLBACK (gdk_paintable_invalidate_size),
self);
}
gdk_paintable_invalidate_size (GDK_PAINTABLE (self));
gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_PAINTABLE]);
}
GdkPaintable *
gtk_renderer_paintable_get_paintable (GtkRendererPaintable *self)
{
g_return_val_if_fail (GTK_IS_RENDERER_PAINTABLE (self), NULL);
return self->paintable;
}

43
demos/node-editor/gtkrendererpaintableprivate.h Normal file
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@ -0,0 +1,43 @@
/*
* Copyright © 2019 Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GTK_RENDERER_PAINTABLE_H__
#define __GTK_RENDERER_PAINTABLE_H__
#include <gsk/gsk.h>
G_BEGIN_DECLS
#define GTK_TYPE_RENDERER_PAINTABLE (gtk_renderer_paintable_get_type ())
G_DECLARE_FINAL_TYPE (GtkRendererPaintable, gtk_renderer_paintable, GTK, RENDERER_PAINTABLE, GObject)
GdkPaintable * gtk_renderer_paintable_new (GskRenderer *renderer,
GdkPaintable *paintable);
void gtk_renderer_paintable_set_renderer (GtkRendererPaintable *self,
GskRenderer *renderer);
GskRenderer * gtk_renderer_paintable_get_renderer (GtkRendererPaintable *self) G_GNUC_PURE;
void gtk_renderer_paintable_set_paintable (GtkRendererPaintable *self,
GdkPaintable *paintable);
GdkPaintable * gtk_renderer_paintable_get_paintable (GtkRendererPaintable *self) G_GNUC_PURE;
G_END_DECLS
#endif /* __GTK_RENDERER_PAINTABLE_H__ */

1
demos/node-editor/meson.build
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@ -1,4 +1,5 @@
node_editor_sources = [
'gtkrendererpaintable.c',
'main.c',
'node-editor-application.c',
'node-editor-window.c',

112
demos/node-editor/node-editor-window.c
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@ -21,6 +21,8 @@
#include "node-editor-window.h"
#include "gtkrendererpaintableprivate.h"
#include "gsk/gskrendernodeparserprivate.h"
typedef struct
@ -38,6 +40,10 @@ struct _NodeEditorWindow
GtkWidget *text_view;
GtkTextBuffer *text_buffer;
GtkWidget *renderer_listbox;
GListStore *renderers;
GdkPaintable *paintable;
GArray *errors;
};
@ -114,6 +120,7 @@ text_changed (GtkTextBuffer *buffer,
GtkSnapshot *snapshot;
GdkPaintable *paintable;
graphene_rect_t bounds;
guint i;
snapshot = gtk_snapshot_new ();
gsk_render_node_get_bounds (node, &bounds);
@ -122,6 +129,12 @@ text_changed (GtkTextBuffer *buffer,
gsk_render_node_unref (node);
paintable = gtk_snapshot_free_to_paintable (snapshot, &bounds.size);
gtk_picture_set_paintable (GTK_PICTURE (self->picture), paintable);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (self->renderers)); i++)
{
gpointer item = g_list_model_get_item (G_LIST_MODEL (self->renderers), i);
gtk_renderer_paintable_set_paintable (item, paintable);
g_object_unref (item);
}
g_clear_object (&paintable);
}
else
@ -388,9 +401,76 @@ node_editor_window_finalize (GObject *object)
g_array_free (self->errors, TRUE);
g_clear_object (&self->renderers);
G_OBJECT_CLASS (node_editor_window_parent_class)->finalize (object);
}
static void
node_editor_window_add_renderer (NodeEditorWindow *self,
GskRenderer *renderer,
const char *description)
{
GdkSurface *surface;
GdkPaintable *paintable;
surface = gtk_widget_get_surface (GTK_WIDGET (self));
g_assert (surface != NULL);
if (renderer != NULL && !gsk_renderer_realize (renderer, surface, NULL))
{
g_object_unref (renderer);
return;
}
paintable = gtk_renderer_paintable_new (renderer, gtk_picture_get_paintable (GTK_PICTURE (self->picture)));
g_object_set_data_full (G_OBJECT (paintable), "description", g_strdup (description), g_free);
g_clear_object (&renderer);
g_list_store_append (self->renderers, paintable);
g_object_unref (paintable);
}
static void
node_editor_window_realize (GtkWidget *widget)
{
NodeEditorWindow *self = NODE_EDITOR_WINDOW (widget);
GTK_WIDGET_CLASS (node_editor_window_parent_class)->realize (widget);
#if 0
node_editor_window_add_renderer (self,
NULL,
"Default");
#endif
node_editor_window_add_renderer (self,
gsk_gl_renderer_new (),
"OpenGL");
#ifdef GDK_RENDERING_VULKAN
node_editor_window_add_renderer (self,
gsk_vulkan_renderer_new (),
"Vulkan");
#endif
#ifdef GDK_WINDOWING_BROADWAY
node_editor_window_add_renderer (self,
gsk_broadway_renderer_new (),
"Broadway");
#endif
node_editor_window_add_renderer (self,
gsk_cairo_renderer_new (),
"Cairo");
}
static void
node_editor_window_unrealize (GtkWidget *widget)
{
NodeEditorWindow *self = NODE_EDITOR_WINDOW (widget);
g_list_store_remove_all (self->renderers);
GTK_WIDGET_CLASS (node_editor_window_parent_class)->unrealize (widget);
}
static void
node_editor_window_class_init (NodeEditorWindowClass *class)
{
@ -399,12 +479,16 @@ node_editor_window_class_init (NodeEditorWindowClass *class)
object_class->finalize = node_editor_window_finalize;
gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/gtk4/node-editor/node-editor-window.ui");
widget_class->realize = node_editor_window_realize;
widget_class->unrealize = node_editor_window_unrealize;
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, text_buffer);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, text_view);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, picture);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, renderer_listbox);
gtk_widget_class_bind_template_callback (widget_class, text_changed);
gtk_widget_class_bind_template_callback (widget_class, text_view_query_tooltip_cb);
@ -413,11 +497,37 @@ node_editor_window_class_init (NodeEditorWindowClass *class)
gtk_widget_class_bind_template_callback (widget_class, export_image_cb);
}
static GtkWidget *
node_editor_window_create_renderer_widget (gpointer item,
gpointer user_data)
{
GdkPaintable *paintable = item;
GtkWidget *box, *label, *picture;
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_set_size_request (box, 120, 90);
label = gtk_label_new (g_object_get_data (G_OBJECT (paintable), "description"));
gtk_container_add (GTK_CONTAINER (box), label);
picture = gtk_picture_new_for_paintable (paintable);
gtk_container_add (GTK_CONTAINER (box), picture);
return box;
}
static void
node_editor_window_init (NodeEditorWindow *self)
{
gtk_widget_init_template (GTK_WIDGET (self));
self->renderers = g_list_store_new (GDK_TYPE_PAINTABLE);
gtk_list_box_bind_model (GTK_LIST_BOX (self->renderer_listbox),
G_LIST_MODEL (self->renderers),
node_editor_window_create_renderer_widget,
self,
NULL);
self->errors = g_array_new (FALSE, TRUE, sizeof (TextViewError));
g_array_set_clear_func (self->errors, (GDestroyNotify)text_view_error_free);
}

32
demos/node-editor/node-editor-window.ui
View File

@ -76,17 +76,31 @@
</object>
</child>
<child>
<object class="GtkScrolledWindow">
<property name="expand">1</property>
<property name="min-content-height">100</property>
<property name="min-content-width">100</property>
<object class="GtkBox">
<child>
<object class="GtkViewport">
<object class="GtkScrolledWindow">
<property name="expand">1</property>
<property name="min-content-height">100</property>
<property name="min-content-width">100</property>
<child>
<object class="GtkPicture" id="picture">
<property name="can-shrink">0</property>
<property name="halign">center</property>
<property name="valign">center</property>
<object class="GtkViewport">
<child>
<object class="GtkPicture" id="picture">
<property name="can-shrink">0</property>
<property name="halign">center</property>
<property name="valign">center</property>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkScrolledWindow">
<property name="hscrollbar-policy">never</property>
<child>
<object class="GtkListBox" id="renderer_listbox">
<property name="selection-mode">none</property>
</object>
</child>
</object>