1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2010 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* 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/>.
*
* Authored by: Jay Taoko <jay.taoko@canonical.com>
*/
#ifndef BACKGROUND_EFFECT_HELPER_H
#define BACKGROUND_EFFECT_HELPER_H
#include "config.h"
#include <Nux/Nux.h>
#include <NuxGraphics/GLThread.h>
#include <UnityCore/ConnectionManager.h>
namespace unity
{
enum BlurType
{
BLUR_NONE,
BLUR_STATIC,
BLUR_ACTIVE
};
class BackgroundEffectHelper
{
public:
BackgroundEffectHelper();
BackgroundEffectHelper(nux::View*);
~BackgroundEffectHelper();
nux::Property<nux::View*> owner;
nux::Property<bool> enabled;
nux::ObjectPtr<nux::IOpenGLBaseTexture> GetBlurRegion(bool force_update = false);
nux::ObjectPtr<nux::IOpenGLBaseTexture> GetRegion(bool force_update = false);
// We could add more functions here to get different types of effects based on the background texture
// nux::ObjectPtr<nux::IOpenGLBaseTexture> GetPixelatedRegion(nux::Rect rect, int pixel_size, bool update);
typedef std::function<nux::Geometry()> GeometryGetterFunc;
void SetGeometryGetter(GeometryGetterFunc const&);
void DirtyCache();
static void ProcessDamage(nux::Geometry const& geo);
static bool HasDirtyHelpers();
static bool HasEnabledHelpers();
static std::vector<nux::Geometry> const& GetBlurGeometries();
static nux::Property<unity::BlurType> blur_type;
static nux::Geometry monitor_rect_;
static sigc::signal<void, nux::Geometry const&> blur_region_needs_update_;
protected:
static void Register (BackgroundEffectHelper* self);
static void Unregister (BackgroundEffectHelper* self);
private:
static float GetBlurSigma();
static int GetBlurRadius();
static void UpdateBlurGeometries();
void OnEnabledChanged(bool value);
void OnOwnerChanged(nux::View*);
void SetupOwner(nux::View*);
bool UpdateOwnerGeometry();
nux::ObjectPtr<nux::BaseTexture> noise_texture_;
nux::ObjectPtr<nux::IOpenGLBaseTexture> blur_texture_;
nux::ObjectPtr<nux::IOpenGLBaseTexture> resize_tmp_;
nux::ObjectPtr<nux::IOpenGLBaseTexture> noisy_tmp_;
nux::FxStructure blur_fx_struct_;
nux::FxStructure noise_fx_struct_;
nux::Geometry blur_geometry_;
nux::Geometry requested_blur_geometry_;
GeometryGetterFunc geo_getter_func_;
connection::Manager connections_;
bool cache_dirty;
static std::list<BackgroundEffectHelper*> registered_list_;
static std::vector<nux::Geometry> blur_geometries_;
};
}
#endif
|