~canonical-dx-team/unity/unity.fix-ql-losing-focus

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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
// -*- 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>
 * Authored by: Mirco Müller <mirco.mueller@canonical.com
 */

#ifndef TOOLTIP_H
#define TOOLTIP_H


#include "Nux/Nux.h"
#include "Nux/BaseWindow.h"
#include "NuxGraphics/GraphicsEngine.h"
#include "Nux/TextureArea.h"
#include "NuxImage/CairoGraphics.h"
#include "StaticCairoText.h"

#include <pango/pango.h>
#include <pango/pangocairo.h>

#include "Introspectable.h"

#if defined(NUX_OS_LINUX)
#include <X11/Xlib.h>
#endif

#define ANCHOR_WIDTH         10.0f
#define ANCHOR_HEIGHT        18.0f
#define HIGH_LIGHT_Y         -30.0f
#define HIGH_LIGHT_MIN_WIDTH 200.0f 
#define RADIUS               5.0f
#define BLUR_INTENSITY       8
#define LINE_WIDTH           1.0f
#define PADDING_SIZE         1
#define H_MARGIN             30
#define V_MARGIN             4
#define FONT_FACE            "Ubuntu 13"

class QuicklistMenuItem;
  
namespace nux
{
  class VLayout;
  class HLayout;
  class SpaceLayout;

  class Tooltip : public BaseWindow, public Introspectable
  {
    NUX_DECLARE_OBJECT_TYPE (Tooltip, BaseWindow);
  public:
    Tooltip ();

    ~Tooltip ();

    long ProcessEvent (IEvent& iEvent,
      long    traverseInfo,
      long    processEventInfo);

    void Draw (GraphicsEngine& gfxContext,
      bool             forceDraw);

    void DrawContent (GraphicsEngine& gfxContext,
      bool             forceDraw);

    void SetText (NString text);

    void ShowTooltipWithTipAt (int anchor_tip_x, int anchor_tip_y);
    
    // Introspection
    const gchar* GetName ();
    void AddProperties (GVariantBuilder *builder);
  
  private:
    void RecvCairoTextChanged (StaticCairoText* cairo_text);

    void PreLayoutManagement ();

    long PostLayoutManagement (long layoutResult);

    void PositionChildLayout (float offsetX,
      float offsetY);

    void LayoutWindowElements ();

    void NotifyConfigurationChange (int width,
      int height);

    //nux::CairoGraphics*   _cairo_graphics;
    int                   _anchorX;
    int                   _anchorY;
    nux::NString          _labelText;
    int                   _dpiX;
    int                   _dpiY;
    int                   _top_size; // size of the segment from point 13 to 14. See figure in _compute_full_mask_path.

    cairo_font_options_t* _fontOpts;

    nux::StaticCairoText* _tooltip_text;
    nux::BaseTexture*     _texture_bg;
    nux::BaseTexture*     _texture_mask;
    nux::BaseTexture*     _texture_outline;

    float _anchor_width;
    float _anchor_height;
    float _corner_radius;
    float _padding;
    nux::HLayout *_hlayout;
    VLayout *_vlayout;
    nux::SpaceLayout *_left_space;  //!< Space from the left of the widget to the left of the text.
    nux::SpaceLayout *_right_space; //!< Space from the right of the text to the right of the widget.
    nux::SpaceLayout *_top_space;  //!< Space from the left of the widget to the left of the text.
    nux::SpaceLayout *_bottom_space; //!< Space from the right of the text to the right of the widget.

    bool _cairo_text_has_changed;
    void UpdateTexture ();
    
    // Introspection
    gchar *_name;
  };
}

#endif // TOOLTIP_H