juce/source/extras/the jucer/src/utility/jucer_ColourEditorComponent.h

   1 /*
   2   ==============================================================================
   3
   4    This file is part of the JUCE library - "Jules' Utility Class Extensions"
   5    Copyright 2004-11 by Raw Material Software Ltd.
   6
   7   ------------------------------------------------------------------------------
   8
   9    JUCE can be redistributed and/or modified under the terms of the GNU General
  10    Public License (Version 2), as published by the Free Software Foundation.
  11    A copy of the license is included in the JUCE distribution, or can be found
  12    online at www.gnu.org/licenses.
  13
  14    JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
  15    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  16    A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  17
  18   ------------------------------------------------------------------------------
  19
  20    To release a closed-source product which uses JUCE, commercial licenses are
  21    available: visit www.rawmaterialsoftware.com/juce for more information.
  22
  23   ==============================================================================
  24 */
  25
  26 #ifndef __JUCER_COLOUREDITORCOMPONENT_JUCEHEADER__
  27 #define __JUCER_COLOUREDITORCOMPONENT_JUCEHEADER__
  28
  29
  30 //==============================================================================
  31 /**
  32     A component that shows a colour swatch with hex ARGB value, and which pops up
  33     a colour selector when you click it.
  34 */
  35 class ColourEditorComponent    : public Component,
  36                                  public ChangeListener
  37 {
  38 public:
  39     ColourEditorComponent (const bool canResetToDefault_)
  40         : canResetToDefault (canResetToDefault_)
  41     {
  42     }
  43
  44     void paint (Graphics& g)
  45     {
  46         g.fillAll (Colours::grey);
  47
  48         g.fillCheckerBoard (getLocalBounds().reduced (2, 2),
  49                             10, 10,
  50                             Colour (0xffdddddd).overlaidWith (colour),
  51                             Colour (0xffffffff).overlaidWith (colour));
  52
  53         g.setColour (Colours::white.overlaidWith (colour).contrasting());
  54         g.setFont (getHeight() * 0.6f, Font::bold);
  55         g.drawFittedText (colour.toDisplayString (true),
  56                           2, 1, getWidth() - 4, getHeight() - 1,
  57                           Justification::centred, 1);
  58     }
  59
  60     virtual void setColour (const Colour& newColour) = 0;
  61     virtual void resetToDefault() = 0;
  62     virtual const Colour getColour() const = 0;
  63
  64     void refresh()
  65     {
  66         const Colour col (getColour());
  67
  68         if (col != colour)
  69         {
  70             colour = col;
  71             repaint();
  72         }
  73     }
  74
  75     void mouseDown (const MouseEvent& e)
  76     {
  77         ColourSelectorComp colourSelector (this, canResetToDefault);
  78
  79         PopupMenu m;
  80         m.addCustomItem (1234, &colourSelector, 300, 400, false);
  81         m.showAt (this);
  82     }
  83
  84     void changeListenerCallback (ChangeBroadcaster* source)
  85     {
  86         const ColourSelector* const cs = (const ColourSelector*) source;
  87
  88         if (cs->getCurrentColour() != getColour())
  89             setColour (cs->getCurrentColour());
  90     }
  91
  92 private:
  93     Colour colour;
  94     bool canResetToDefault;
  95
  96     class ColourSelectorComp   : public Component,
  97                                  public ButtonListener
  98     {
  99     public:
 100         ColourSelectorComp (ColourEditorComponent* owner_,
 101                             const bool canResetToDefault)
 102             : owner (owner_),
 103               defaultButton ("Reset to Default")
 104         {
 105             addAndMakeVisible (&selector);
 106             selector.setName ("Colour");
 107             selector.setCurrentColour (owner->getColour());
 108             selector.addChangeListener (owner);
 109
 110             if (canResetToDefault)
 111             {
 112                 addAndMakeVisible (&defaultButton);
 113                 defaultButton.addListener (this);
 114             }
 115         }
 116
 117         void resized()
 118         {
 119             if (defaultButton.isVisible())
 120             {
 121                 selector.setBounds (0, 0, getWidth(), getHeight() - 30);
 122                 defaultButton.changeWidthToFitText (22);
 123                 defaultButton.setTopLeftPosition (10, getHeight() - 26);
 124             }
 125             else
 126             {
 127                 selector.setBounds (0, 0, getWidth(), getHeight());
 128             }
 129         }
 130
 131         void buttonClicked (Button*)
 132         {
 133             owner->resetToDefault();
 134             owner->refresh();
 135             selector.setCurrentColour (owner->getColour());
 136         }
 137
 138     private:
 139         class ColourSelectorWithSwatches    : public ColourSelector
 140         {
 141         public:
 142             ColourSelectorWithSwatches()
 143             {
 144             }
 145
 146             int getNumSwatches() const
 147             {
 148                 return StoredSettings::getInstance()->swatchColours.size();
 149             }
 150
 151             const Colour getSwatchColour (int index) const
 152             {
 153                 return StoredSettings::getInstance()->swatchColours [index];
 154             }
 155
 156             void setSwatchColour (int index, const Colour& newColour) const
 157             {
 158                 StoredSettings::getInstance()->swatchColours.set (index, newColour);
 159             }
 160         };
 161
 162         ColourEditorComponent* owner;
 163         ColourSelectorWithSwatches selector;
 164         TextButton defaultButton;
 165     };
 166 };
 167
 168
 169 #endif   // __JUCER_COLOUREDITORCOMPONENT_JUCEHEADER__