mirror of
https://github.com/elementary/gala.git
synced 2024-11-26 23:05:09 +03:00
ShadowEffect: inline namespace, copy to PIP (#1520)
This commit is contained in:
Leo
GitHub
parent
bef947e1b9
commit
5bdfd5a1f2
@ -105,7 +105,7 @@ public class Gala.Plugins.PIP.PopupWindow : Clutter.Actor {
|
||||
container = new Clutter.Actor ();
|
||||
container.reactive = true;
|
||||
container.set_scale (0.35f, 0.35f);
|
||||
container.add_effect (new ShadowEffect (SHADOW_SIZE, 2));
|
||||
container.add_effect (new ShadowEffect (SHADOW_SIZE) { css_class = "window-clone" });
|
||||
container.add_child (clone);
|
||||
container.add_action (move_action);
|
||||
|
||||
|
||||
@ -1,150 +1,169 @@
|
||||
//
|
||||
// Copyright (C) 2014 Tom Beckmann
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program 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 General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
/*
|
||||
* Copyright 2014 Tom Beckmann
|
||||
* Copyright 2023 elementary, Inc. <https://elementary.io>
|
||||
* SPDX-License-Identifier: GPL-3.0-or-later
|
||||
*/
|
||||
|
||||
using Clutter;
|
||||
public class Gala.Plugins.PIP.ShadowEffect : Clutter.Effect {
|
||||
private class Shadow {
|
||||
public int users;
|
||||
public Cogl.Texture texture;
|
||||
|
||||
namespace Gala.Plugins.PIP {
|
||||
public class ShadowEffect : Effect {
|
||||
private class Shadow {
|
||||
public int users;
|
||||
public Cogl.Texture texture;
|
||||
|
||||
public Shadow (Cogl.Texture _texture) {
|
||||
texture = _texture;
|
||||
users = 1;
|
||||
}
|
||||
}
|
||||
|
||||
// the sizes of the textures often repeat, especially for the background actor
|
||||
// so we keep a cache to avoid creating the same texture all over again.
|
||||
static Gee.HashMap<string,Shadow> shadow_cache;
|
||||
|
||||
static construct {
|
||||
shadow_cache = new Gee.HashMap<string,Shadow> ();
|
||||
}
|
||||
|
||||
public int shadow_size { get; construct; }
|
||||
public int shadow_spread { get; construct; }
|
||||
|
||||
public float scale_factor { get; set; default = 1; }
|
||||
public uint8 shadow_opacity { get; set; default = 255; }
|
||||
|
||||
Cogl.Pipeline pipeline;
|
||||
|
||||
string? current_key = null;
|
||||
|
||||
public ShadowEffect (int shadow_size, int shadow_spread) {
|
||||
Object (shadow_size: shadow_size, shadow_spread: shadow_spread);
|
||||
}
|
||||
|
||||
construct {
|
||||
pipeline = new Cogl.Pipeline (Clutter.get_default_backend ().get_cogl_context ());
|
||||
}
|
||||
|
||||
~ShadowEffect () {
|
||||
if (current_key != null)
|
||||
decrement_shadow_users (current_key);
|
||||
}
|
||||
|
||||
Cogl.Texture? get_shadow (Cogl.Context context, int width, int height, int shadow_size, int shadow_spread) {
|
||||
var old_key = current_key;
|
||||
|
||||
current_key = "%ix%i:%i:%i".printf (width, height, shadow_size, shadow_spread);
|
||||
if (old_key == current_key)
|
||||
return null;
|
||||
|
||||
if (old_key != null)
|
||||
decrement_shadow_users (old_key);
|
||||
|
||||
Shadow? shadow = null;
|
||||
if ((shadow = shadow_cache.@get (current_key)) != null) {
|
||||
shadow.users++;
|
||||
return shadow.texture;
|
||||
}
|
||||
|
||||
// fill a new texture for this size
|
||||
var buffer = new Drawing.BufferSurface (width, height);
|
||||
buffer.context.rectangle (shadow_size - shadow_spread, shadow_size - shadow_spread,
|
||||
width - shadow_size * 2 + shadow_spread * 2, height - shadow_size * 2 + shadow_spread * 2);
|
||||
buffer.context.set_source_rgba (0, 0, 0, 0.7);
|
||||
buffer.context.fill ();
|
||||
|
||||
buffer.exponential_blur (shadow_size / 2);
|
||||
|
||||
var surface = new Cairo.ImageSurface (Cairo.Format.ARGB32, width, height);
|
||||
var cr = new Cairo.Context (surface);
|
||||
|
||||
cr.set_source_surface (buffer.surface, 0, 0);
|
||||
cr.paint ();
|
||||
|
||||
try {
|
||||
var texture = new Cogl.Texture2D.from_data (context, width, height, Cogl.PixelFormat.BGRA_8888_PRE,
|
||||
surface.get_stride (), surface.get_data ());
|
||||
|
||||
shadow_cache.@set (current_key, new Shadow (texture));
|
||||
return texture;
|
||||
} catch (GLib.Error e) {
|
||||
debug (e.message);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
void decrement_shadow_users (string key) {
|
||||
var shadow = shadow_cache.@get (key);
|
||||
|
||||
if (shadow == null)
|
||||
return;
|
||||
|
||||
if (--shadow.users == 0)
|
||||
shadow_cache.unset (key);
|
||||
}
|
||||
|
||||
#if HAS_MUTTER40
|
||||
public override void paint (Clutter.PaintNode node, Clutter.PaintContext context, Clutter.EffectPaintFlags flags) {
|
||||
#else
|
||||
public override void paint (Clutter.PaintContext context, EffectPaintFlags flags) {
|
||||
#endif
|
||||
var bounding_box = get_bounding_box ();
|
||||
|
||||
var shadow = get_shadow (context.get_framebuffer ().get_context (), (int) (bounding_box.x2 - bounding_box.x1),
|
||||
(int) (bounding_box.y2 - bounding_box.y1), shadow_size, shadow_spread);
|
||||
|
||||
if (shadow != null)
|
||||
pipeline.set_layer_texture (0, shadow);
|
||||
|
||||
var opacity = actor.get_paint_opacity () * shadow_opacity / 255;
|
||||
var alpha = Cogl.Color.from_4ub (255, 255, 255, opacity);
|
||||
alpha.premultiply ();
|
||||
|
||||
pipeline.set_color (alpha);
|
||||
|
||||
context.get_framebuffer ().draw_rectangle (pipeline, bounding_box.x1, bounding_box.y1, bounding_box.x2, bounding_box.y2);
|
||||
|
||||
actor.continue_paint (context);
|
||||
}
|
||||
|
||||
public virtual ActorBox get_bounding_box () {
|
||||
var size = shadow_size * scale_factor;
|
||||
var bounding_box = ActorBox ();
|
||||
|
||||
bounding_box.set_origin (-size, -size);
|
||||
bounding_box.set_size (actor.width + size * 2, actor.height + size * 2);
|
||||
|
||||
return bounding_box;
|
||||
public Shadow (Cogl.Texture _texture) {
|
||||
texture = _texture;
|
||||
users = 1;
|
||||
}
|
||||
}
|
||||
|
||||
// the sizes of the textures often repeat, especially for the background actor
|
||||
// so we keep a cache to avoid creating the same texture all over again.
|
||||
private static Gee.HashMap<string,Shadow> shadow_cache;
|
||||
private static Gtk.StyleContext style_context;
|
||||
|
||||
class construct {
|
||||
shadow_cache = new Gee.HashMap<string,Shadow> ();
|
||||
|
||||
var style_path = new Gtk.WidgetPath ();
|
||||
var id = style_path.append_type (typeof (Gtk.Window));
|
||||
|
||||
style_context = new Gtk.StyleContext ();
|
||||
style_context.add_provider (Gala.Utils.get_gala_css (), Gtk.STYLE_PROVIDER_PRIORITY_FALLBACK);
|
||||
style_context.add_class ("decoration");
|
||||
style_context.set_path (style_path);
|
||||
}
|
||||
|
||||
public int shadow_size { get; construct; }
|
||||
|
||||
public float scale_factor { get; set; default = 1; }
|
||||
public uint8 shadow_opacity { get; set; default = 255; }
|
||||
public string? css_class { get; set; default = null; }
|
||||
|
||||
private Cogl.Pipeline pipeline;
|
||||
private string? current_key = null;
|
||||
|
||||
public ShadowEffect (int shadow_size) {
|
||||
Object (shadow_size: shadow_size);
|
||||
}
|
||||
|
||||
construct {
|
||||
pipeline = new Cogl.Pipeline (Clutter.get_default_backend ().get_cogl_context ());
|
||||
}
|
||||
|
||||
~ShadowEffect () {
|
||||
if (current_key != null) {
|
||||
decrement_shadow_users (current_key);
|
||||
}
|
||||
}
|
||||
|
||||
private Cogl.Texture? get_shadow (Cogl.Context context, int width, int height, int shadow_size) {
|
||||
var old_key = current_key;
|
||||
current_key = "%ix%i:%i".printf (width, height, shadow_size);
|
||||
if (old_key == current_key) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (old_key != null) {
|
||||
decrement_shadow_users (old_key);
|
||||
}
|
||||
|
||||
Shadow? shadow = null;
|
||||
if ((shadow = shadow_cache.@get (current_key)) != null) {
|
||||
shadow.users++;
|
||||
return shadow.texture;
|
||||
}
|
||||
|
||||
var surface = new Cairo.ImageSurface (Cairo.Format.ARGB32, width, height);
|
||||
var cr = new Cairo.Context (surface);
|
||||
cr.set_source_rgba (0, 0, 0, 0);
|
||||
cr.fill ();
|
||||
|
||||
cr.set_operator (Cairo.Operator.OVER);
|
||||
cr.save ();
|
||||
cr.scale (scale_factor, scale_factor);
|
||||
style_context.save ();
|
||||
if (css_class != null) {
|
||||
style_context.add_class (css_class);
|
||||
}
|
||||
|
||||
style_context.set_scale ((int)scale_factor);
|
||||
style_context.render_background (cr, shadow_size, shadow_size, width - shadow_size * 2, height - shadow_size * 2);
|
||||
style_context.restore ();
|
||||
cr.restore ();
|
||||
|
||||
cr.paint ();
|
||||
|
||||
try {
|
||||
var texture = new Cogl.Texture2D.from_data (context, width, height, Cogl.PixelFormat.BGRA_8888_PRE,
|
||||
surface.get_stride (), surface.get_data ());
|
||||
shadow_cache.@set (current_key, new Shadow (texture));
|
||||
|
||||
return texture;
|
||||
} catch (Error e) {
|
||||
debug (e.message);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
private void decrement_shadow_users (string key) {
|
||||
var shadow = shadow_cache.@get (key);
|
||||
|
||||
if (shadow == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (--shadow.users == 0) {
|
||||
shadow_cache.unset (key);
|
||||
}
|
||||
}
|
||||
|
||||
#if HAS_MUTTER40
|
||||
public override void paint (Clutter.PaintNode node, Clutter.PaintContext context, Clutter.EffectPaintFlags flags) {
|
||||
#else
|
||||
public override void paint (Clutter.PaintContext context, EffectPaintFlags flags) {
|
||||
#endif
|
||||
var bounding_box = get_bounding_box ();
|
||||
var width = (int) (bounding_box.x2 - bounding_box.x1);
|
||||
var height = (int) (bounding_box.y2 - bounding_box.y1);
|
||||
|
||||
var shadow = get_shadow (context.get_framebuffer ().get_context (), width, height, shadow_size);
|
||||
if (shadow != null) {
|
||||
pipeline.set_layer_texture (0, shadow);
|
||||
}
|
||||
|
||||
var opacity = actor.get_paint_opacity () * shadow_opacity / 255;
|
||||
var alpha = Cogl.Color.from_4ub (255, 255, 255, opacity);
|
||||
alpha.premultiply ();
|
||||
|
||||
pipeline.set_color (alpha);
|
||||
|
||||
context.get_framebuffer ().draw_rectangle (pipeline, bounding_box.x1, bounding_box.y1, bounding_box.x2, bounding_box.y2);
|
||||
|
||||
actor.continue_paint (context);
|
||||
}
|
||||
|
||||
public virtual Clutter.ActorBox get_bounding_box () {
|
||||
var size = shadow_size * scale_factor;
|
||||
var bounding_box = Clutter.ActorBox ();
|
||||
|
||||
bounding_box.set_origin (-size, -size);
|
||||
bounding_box.set_size (actor.width + size * 2, actor.height + size * 2);
|
||||
|
||||
return bounding_box;
|
||||
}
|
||||
|
||||
public override bool modify_paint_volume (Clutter.PaintVolume volume) {
|
||||
var bounding_box = get_bounding_box ();
|
||||
|
||||
volume.set_width (bounding_box.get_width ());
|
||||
volume.set_height (bounding_box.get_height ());
|
||||
|
||||
float origin_x, origin_y;
|
||||
bounding_box.get_origin (out origin_x, out origin_y);
|
||||
var origin = volume.get_origin ();
|
||||
origin.x += origin_x;
|
||||
origin.y += origin_y;
|
||||
volume.set_origin (origin);
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
@ -1,178 +1,169 @@
|
||||
//
|
||||
// Copyright (C) 2014 Tom Beckmann
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program 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 General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
/*
|
||||
* Copyright 2014 Tom Beckmann
|
||||
* Copyright 2023 elementary, Inc. <https://elementary.io>
|
||||
* SPDX-License-Identifier: GPL-3.0-or-later
|
||||
*/
|
||||
|
||||
using Clutter;
|
||||
public class Gala.ShadowEffect : Clutter.Effect {
|
||||
private class Shadow {
|
||||
public int users;
|
||||
public Cogl.Texture texture;
|
||||
|
||||
namespace Gala {
|
||||
public class ShadowEffect : Effect {
|
||||
private class Shadow {
|
||||
public int users;
|
||||
public Cogl.Texture texture;
|
||||
|
||||
public Shadow (Cogl.Texture _texture) {
|
||||
texture = _texture;
|
||||
users = 1;
|
||||
}
|
||||
}
|
||||
|
||||
// the sizes of the textures often repeat, especially for the background actor
|
||||
// so we keep a cache to avoid creating the same texture all over again.
|
||||
static Gee.HashMap<string,Shadow> shadow_cache;
|
||||
static Gtk.StyleContext style_context;
|
||||
|
||||
class construct {
|
||||
shadow_cache = new Gee.HashMap<string,Shadow> ();
|
||||
|
||||
var style_path = new Gtk.WidgetPath ();
|
||||
var id = style_path.append_type (typeof (Gtk.Window));
|
||||
|
||||
style_context = new Gtk.StyleContext ();
|
||||
style_context.add_provider (Gala.Utils.get_gala_css (), Gtk.STYLE_PROVIDER_PRIORITY_FALLBACK);
|
||||
style_context.add_class ("decoration");
|
||||
style_context.set_path (style_path);
|
||||
}
|
||||
|
||||
public int shadow_size { get; construct; }
|
||||
|
||||
public float scale_factor { get; set; default = 1; }
|
||||
public uint8 shadow_opacity { get; set; default = 255; }
|
||||
public string? css_class { get; set; default = null; }
|
||||
|
||||
Cogl.Pipeline pipeline;
|
||||
string? current_key = null;
|
||||
|
||||
public ShadowEffect (int shadow_size) {
|
||||
Object (shadow_size: shadow_size);
|
||||
}
|
||||
|
||||
construct {
|
||||
pipeline = new Cogl.Pipeline (Clutter.get_default_backend ().get_cogl_context ());
|
||||
}
|
||||
|
||||
~ShadowEffect () {
|
||||
if (current_key != null)
|
||||
decrement_shadow_users (current_key);
|
||||
}
|
||||
|
||||
Cogl.Texture? get_shadow (Cogl.Context context, int width, int height, int shadow_size) {
|
||||
var old_key = current_key;
|
||||
current_key = "%ix%i:%i".printf (width, height, shadow_size);
|
||||
if (old_key == current_key)
|
||||
return null;
|
||||
|
||||
if (old_key != null)
|
||||
decrement_shadow_users (old_key);
|
||||
|
||||
Shadow? shadow = null;
|
||||
if ((shadow = shadow_cache.@get (current_key)) != null) {
|
||||
shadow.users++;
|
||||
return shadow.texture;
|
||||
}
|
||||
|
||||
var surface = new Cairo.ImageSurface (Cairo.Format.ARGB32, width, height);
|
||||
var cr = new Cairo.Context (surface);
|
||||
cr.set_source_rgba (0, 0, 0, 0);
|
||||
cr.fill ();
|
||||
|
||||
cr.set_operator (Cairo.Operator.OVER);
|
||||
cr.save ();
|
||||
cr.scale (scale_factor, scale_factor);
|
||||
style_context.save ();
|
||||
if (css_class != null) {
|
||||
style_context.add_class (css_class);
|
||||
}
|
||||
|
||||
style_context.set_scale ((int)scale_factor);
|
||||
style_context.render_background (cr, shadow_size, shadow_size, width - shadow_size * 2, height - shadow_size * 2);
|
||||
style_context.restore ();
|
||||
cr.restore ();
|
||||
|
||||
cr.paint ();
|
||||
|
||||
try {
|
||||
var texture = new Cogl.Texture2D.from_data (context, width, height, Cogl.PixelFormat.BGRA_8888_PRE,
|
||||
surface.get_stride (), surface.get_data ());
|
||||
shadow_cache.@set (current_key, new Shadow (texture));
|
||||
|
||||
return texture;
|
||||
} catch (Error e) {
|
||||
debug (e.message);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
void decrement_shadow_users (string key) {
|
||||
var shadow = shadow_cache.@get (key);
|
||||
|
||||
if (shadow == null)
|
||||
return;
|
||||
|
||||
if (--shadow.users == 0)
|
||||
shadow_cache.unset (key);
|
||||
}
|
||||
|
||||
#if HAS_MUTTER40
|
||||
public override void paint (Clutter.PaintNode node, Clutter.PaintContext context, Clutter.EffectPaintFlags flags) {
|
||||
#else
|
||||
public override void paint (Clutter.PaintContext context, EffectPaintFlags flags) {
|
||||
#endif
|
||||
var bounding_box = get_bounding_box ();
|
||||
var width = (int) (bounding_box.x2 - bounding_box.x1);
|
||||
var height = (int) (bounding_box.y2 - bounding_box.y1);
|
||||
|
||||
var shadow = get_shadow (context.get_framebuffer ().get_context (), width, height, shadow_size);
|
||||
if (shadow != null)
|
||||
pipeline.set_layer_texture (0, shadow);
|
||||
|
||||
var opacity = actor.get_paint_opacity () * shadow_opacity / 255;
|
||||
var alpha = Cogl.Color.from_4ub (255, 255, 255, opacity);
|
||||
alpha.premultiply ();
|
||||
|
||||
pipeline.set_color (alpha);
|
||||
|
||||
context.get_framebuffer ().draw_rectangle (pipeline, bounding_box.x1, bounding_box.y1, bounding_box.x2, bounding_box.y2);
|
||||
|
||||
actor.continue_paint (context);
|
||||
}
|
||||
|
||||
public virtual ActorBox get_bounding_box () {
|
||||
var size = shadow_size * scale_factor;
|
||||
var bounding_box = ActorBox ();
|
||||
|
||||
bounding_box.set_origin (-size, -size);
|
||||
bounding_box.set_size (actor.width + size * 2, actor.height + size * 2);
|
||||
|
||||
return bounding_box;
|
||||
}
|
||||
|
||||
public override bool modify_paint_volume (Clutter.PaintVolume volume) {
|
||||
var bounding_box = get_bounding_box ();
|
||||
|
||||
volume.set_width (bounding_box.get_width ());
|
||||
volume.set_height (bounding_box.get_height ());
|
||||
|
||||
float origin_x, origin_y;
|
||||
bounding_box.get_origin (out origin_x, out origin_y);
|
||||
var origin = volume.get_origin ();
|
||||
origin.x += origin_x;
|
||||
origin.y += origin_y;
|
||||
volume.set_origin (origin);
|
||||
|
||||
return true;
|
||||
public Shadow (Cogl.Texture _texture) {
|
||||
texture = _texture;
|
||||
users = 1;
|
||||
}
|
||||
}
|
||||
|
||||
// the sizes of the textures often repeat, especially for the background actor
|
||||
// so we keep a cache to avoid creating the same texture all over again.
|
||||
private static Gee.HashMap<string,Shadow> shadow_cache;
|
||||
private static Gtk.StyleContext style_context;
|
||||
|
||||
class construct {
|
||||
shadow_cache = new Gee.HashMap<string,Shadow> ();
|
||||
|
||||
var style_path = new Gtk.WidgetPath ();
|
||||
var id = style_path.append_type (typeof (Gtk.Window));
|
||||
|
||||
style_context = new Gtk.StyleContext ();
|
||||
style_context.add_provider (Gala.Utils.get_gala_css (), Gtk.STYLE_PROVIDER_PRIORITY_FALLBACK);
|
||||
style_context.add_class ("decoration");
|
||||
style_context.set_path (style_path);
|
||||
}
|
||||
|
||||
public int shadow_size { get; construct; }
|
||||
|
||||
public float scale_factor { get; set; default = 1; }
|
||||
public uint8 shadow_opacity { get; set; default = 255; }
|
||||
public string? css_class { get; set; default = null; }
|
||||
|
||||
private Cogl.Pipeline pipeline;
|
||||
private string? current_key = null;
|
||||
|
||||
public ShadowEffect (int shadow_size) {
|
||||
Object (shadow_size: shadow_size);
|
||||
}
|
||||
|
||||
construct {
|
||||
pipeline = new Cogl.Pipeline (Clutter.get_default_backend ().get_cogl_context ());
|
||||
}
|
||||
|
||||
~ShadowEffect () {
|
||||
if (current_key != null) {
|
||||
decrement_shadow_users (current_key);
|
||||
}
|
||||
}
|
||||
|
||||
private Cogl.Texture? get_shadow (Cogl.Context context, int width, int height, int shadow_size) {
|
||||
var old_key = current_key;
|
||||
current_key = "%ix%i:%i".printf (width, height, shadow_size);
|
||||
if (old_key == current_key) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (old_key != null) {
|
||||
decrement_shadow_users (old_key);
|
||||
}
|
||||
|
||||
Shadow? shadow = null;
|
||||
if ((shadow = shadow_cache.@get (current_key)) != null) {
|
||||
shadow.users++;
|
||||
return shadow.texture;
|
||||
}
|
||||
|
||||
var surface = new Cairo.ImageSurface (Cairo.Format.ARGB32, width, height);
|
||||
var cr = new Cairo.Context (surface);
|
||||
cr.set_source_rgba (0, 0, 0, 0);
|
||||
cr.fill ();
|
||||
|
||||
cr.set_operator (Cairo.Operator.OVER);
|
||||
cr.save ();
|
||||
cr.scale (scale_factor, scale_factor);
|
||||
style_context.save ();
|
||||
if (css_class != null) {
|
||||
style_context.add_class (css_class);
|
||||
}
|
||||
|
||||
style_context.set_scale ((int)scale_factor);
|
||||
style_context.render_background (cr, shadow_size, shadow_size, width - shadow_size * 2, height - shadow_size * 2);
|
||||
style_context.restore ();
|
||||
cr.restore ();
|
||||
|
||||
cr.paint ();
|
||||
|
||||
try {
|
||||
var texture = new Cogl.Texture2D.from_data (context, width, height, Cogl.PixelFormat.BGRA_8888_PRE,
|
||||
surface.get_stride (), surface.get_data ());
|
||||
shadow_cache.@set (current_key, new Shadow (texture));
|
||||
|
||||
return texture;
|
||||
} catch (Error e) {
|
||||
debug (e.message);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
private void decrement_shadow_users (string key) {
|
||||
var shadow = shadow_cache.@get (key);
|
||||
|
||||
if (shadow == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (--shadow.users == 0) {
|
||||
shadow_cache.unset (key);
|
||||
}
|
||||
}
|
||||
|
||||
#if HAS_MUTTER40
|
||||
public override void paint (Clutter.PaintNode node, Clutter.PaintContext context, Clutter.EffectPaintFlags flags) {
|
||||
#else
|
||||
public override void paint (Clutter.PaintContext context, EffectPaintFlags flags) {
|
||||
#endif
|
||||
var bounding_box = get_bounding_box ();
|
||||
var width = (int) (bounding_box.x2 - bounding_box.x1);
|
||||
var height = (int) (bounding_box.y2 - bounding_box.y1);
|
||||
|
||||
var shadow = get_shadow (context.get_framebuffer ().get_context (), width, height, shadow_size);
|
||||
if (shadow != null) {
|
||||
pipeline.set_layer_texture (0, shadow);
|
||||
}
|
||||
|
||||
var opacity = actor.get_paint_opacity () * shadow_opacity / 255;
|
||||
var alpha = Cogl.Color.from_4ub (255, 255, 255, opacity);
|
||||
alpha.premultiply ();
|
||||
|
||||
pipeline.set_color (alpha);
|
||||
|
||||
context.get_framebuffer ().draw_rectangle (pipeline, bounding_box.x1, bounding_box.y1, bounding_box.x2, bounding_box.y2);
|
||||
|
||||
actor.continue_paint (context);
|
||||
}
|
||||
|
||||
public virtual Clutter.ActorBox get_bounding_box () {
|
||||
var size = shadow_size * scale_factor;
|
||||
var bounding_box = Clutter.ActorBox ();
|
||||
|
||||
bounding_box.set_origin (-size, -size);
|
||||
bounding_box.set_size (actor.width + size * 2, actor.height + size * 2);
|
||||
|
||||
return bounding_box;
|
||||
}
|
||||
|
||||
public override bool modify_paint_volume (Clutter.PaintVolume volume) {
|
||||
var bounding_box = get_bounding_box ();
|
||||
|
||||
volume.set_width (bounding_box.get_width ());
|
||||
volume.set_height (bounding_box.get_height ());
|
||||
|
||||
float origin_x, origin_y;
|
||||
bounding_box.get_origin (out origin_x, out origin_y);
|
||||
var origin = volume.get_origin ();
|
||||
origin.x += origin_x;
|
||||
origin.y += origin_y;
|
||||
volume.set_origin (origin);
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user