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JUCE/extras/Projucer/Source/ComponentEditor/paintelements/jucer_PaintElementUndoableAction.h

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4.5 KiB
C++

/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE 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.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
#ifndef JUCER_PAINTELEMENTUNDOABLEACTION_H_INCLUDED
#define JUCER_PAINTELEMENTUNDOABLEACTION_H_INCLUDED
#include "../ui/jucer_JucerDocumentEditor.h"
#include "jucer_PaintElementGroup.h"
//==============================================================================
template <class ElementType>
class PaintElementUndoableAction : public UndoableAction
{
public:
PaintElementUndoableAction (ElementType* const element)
: routine (*element->getOwner()),
elementIndex (element->getOwner()->indexOfElement (element))
{
jassert (element != 0);
if (elementIndex < 0)
findGroupIndices (element->getOwner(), element);
jassert (elementIndex >= 0);
}
ElementType* getElement() const
{
if (containerGroups.size() > 0)
{
PaintElementGroup* group = 0;
group = dynamic_cast<PaintElementGroup*> (routine.getElement (containerGroups.getFirst()));
if (group == 0)
return 0;
for (int i = 1; i < containerGroups.size(); ++i)
{
group = dynamic_cast<PaintElementGroup*> (group->getElement (containerGroups.getUnchecked(i)));
if (group == 0)
return 0;
}
ElementType* const e = dynamic_cast<ElementType*> (group->getElement (elementIndex));
jassert (e != 0);
return e;
}
else
{
ElementType* const e = dynamic_cast<ElementType*> (routine.getElement (elementIndex));
jassert (e != 0);
return e;
}
}
int getSizeInUnits() { return 2; }
protected:
PaintRoutine& routine;
int elementIndex;
Array <int> containerGroups;
void changed() const
{
jassert (routine.getDocument() != 0);
routine.getDocument()->changed();
}
void showCorrectTab() const
{
if (JucerDocumentEditor* const docHolder = JucerDocumentEditor::getActiveDocumentHolder())
docHolder->showGraphics (&routine);
if (routine.getSelectedElements().getNumSelected() == 0)
if (ElementType* const e = dynamic_cast<ElementType*> (routine.getElement (elementIndex)))
routine.getSelectedElements().selectOnly (e);
}
private:
void findGroupIndices (PaintRoutine* const pr, PaintElement* const element)
{
for (int i = pr->getNumElements(); --i >= 0;)
{
PaintElementGroup* const pg = dynamic_cast<PaintElementGroup*> (pr->getElement (i));
if (pg != 0 && pg->containsElement (element))
{
containerGroups.add (i);
findGroupIndices (pg, element);
}
}
}
void findGroupIndices (PaintElementGroup* const group, PaintElement* const element)
{
elementIndex = group->indexOfElement (element);
if (elementIndex < 0)
{
for (int i = group->getNumElements(); --i >= 0;)
{
PaintElementGroup* pg = dynamic_cast<PaintElementGroup*> (group->getElement (i));
if (pg != 0 && pg->containsElement (element))
{
containerGroups.add (i);
findGroupIndices (pg, element);
}
}
}
}
PaintElementUndoableAction (const PaintElementUndoableAction&);
PaintElementUndoableAction& operator= (const PaintElementUndoableAction&);
};
#endif // JUCER_PAINTELEMENTUNDOABLEACTION_H_INCLUDED