juce/source/extras/the jucer/src/model/components/jucer_ComponentUndoableAction.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_COMPONENTUNDOABLEACTION_JUCEHEADER__
  27 #define __JUCER_COMPONENTUNDOABLEACTION_JUCEHEADER__
  28
  29 #include "../../ui/jucer_JucerDocumentHolder.h"
  30
  31
  32 //==============================================================================
  33 /**
  34 */
  35 template <class ComponentType>
  36 class ComponentUndoableAction    : public UndoableAction
  37 {
  38 public:
  39     ComponentUndoableAction (ComponentType* const comp,
  40                              ComponentLayout& layout_)
  41         : layout (layout_),
  42           componentIndex (layout_.indexOfComponent (comp))
  43     {
  44         jassert (comp != 0);
  45         jassert (componentIndex >= 0);
  46     }
  47
  48     ~ComponentUndoableAction()
  49     {
  50     }
  51
  52     ComponentType* getComponent() const
  53     {
  54         ComponentType* const c = dynamic_cast <ComponentType*> (layout.getComponent (componentIndex));
  55         jassert (c != 0);
  56         return c;
  57     }
  58
  59     int getSizeInUnits()    { return 2; }
  60
  61 protected:
  62     ComponentLayout& layout;
  63     const int componentIndex;
  64
  65     void changed() const
  66     {
  67         jassert (layout.getDocument() != 0);
  68         layout.getDocument()->changed();
  69     }
  70
  71     void showCorrectTab() const
  72     {
  73         JucerDocumentHolder* const docHolder = JucerDocumentHolder::getActiveDocumentHolder();
  74
  75         if (docHolder != 0)
  76             docHolder->showLayout();
  77
  78         if (layout.getSelectedSet().getNumSelected() == 0)
  79         {
  80             ComponentType* const c = dynamic_cast <ComponentType*> (layout.getComponent (componentIndex));
  81
  82             if (c != 0)
  83                 layout.getSelectedSet().selectOnly (getComponent());
  84         }
  85     }
  86
  87 private:
  88     ComponentUndoableAction (const ComponentUndoableAction&);
  89     ComponentUndoableAction& operator= (const ComponentUndoableAction&);
  90 };
  91
  92
  93
  94 #endif   // __JUCER_COMPONENTUNDOABLEACTION_JUCEHEADER__