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/*
==============================================================================
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_PAINTELEMENT_H_INCLUDED
#define JUCER_PAINTELEMENT_H_INCLUDED
#include "../jucer_GeneratedCode.h"
#include "../ui/jucer_RelativePositionedRectangle.h"
class FillType;
class PaintRoutine;
class JucerDocument;
class ElementSiblingComponent;
//==============================================================================
/**
Base class for objects that can be used in a PaintRoutine.
*/
class PaintElement : public Component,
public ChangeListener,
public ComponentBoundsConstrainer
{
public:
//==============================================================================
PaintElement (PaintRoutine* owner, const String& typeName);
virtual ~PaintElement();
//==============================================================================
virtual void setInitialBounds (int parentWidth, int parentHeight);
virtual Rectangle<int> getCurrentBounds (const Rectangle<int>& activeArea) const;
virtual void setCurrentBounds (const Rectangle<int>& newBounds, const Rectangle<int>& activeArea, const bool undoable);
const RelativePositionedRectangle& getPosition() const;
void setPosition (const RelativePositionedRectangle& newPosition, const bool undoable);
void updateBounds (const Rectangle<int>& activeArea);
const String& getTypeName() const noexcept { return typeName; }
PaintRoutine* getOwner() const noexcept { return owner; }
//==============================================================================
virtual void draw (Graphics& g,
const ComponentLayout* layout,
const Rectangle<int>& parentArea) = 0;
virtual void drawExtraEditorGraphics (Graphics& g, const Rectangle<int>& relativeTo);
virtual void getEditableProperties (Array<PropertyComponent*>& props);
virtual void showPopupMenu();
//==============================================================================
virtual XmlElement* createXml() const = 0;
virtual bool loadFromXml (const XmlElement& xml) = 0;
//==============================================================================
virtual void fillInGeneratedCode (GeneratedCode& code, String& paintMethodCode) = 0;
JucerDocument* getDocument() const;
virtual void changed();
bool perform (UndoableAction* action, const String& actionName);
//==============================================================================
void paint (Graphics& g);
void resized();
void mouseDown (const MouseEvent& e);
void mouseDrag (const MouseEvent& e);
void mouseUp (const MouseEvent& e);
void changeListenerCallback (ChangeBroadcaster*);
void parentHierarchyChanged();
int borderThickness;
protected:
PaintRoutine* const owner;
RelativePositionedRectangle position;
void resizeStart();
void resizeEnd();
void checkBounds (Rectangle<int>& bounds,
const Rectangle<int>& previousBounds,
const Rectangle<int>& limits,
bool isStretchingTop,
bool isStretchingLeft,
bool isStretchingBottom,
bool isStretchingRight);
void applyBoundsToComponent (Component* component, const Rectangle<int>& bounds);
Rectangle<int> getCurrentAbsoluteBounds() const;
void getCurrentAbsoluteBoundsDouble (double& x, double& y, double& w, double& h) const;
virtual void selectionChanged (const bool isSelected);
virtual void createSiblingComponents();
void siblingComponentsChanged();
OwnedArray <ElementSiblingComponent> siblingComponents;
void updateSiblingComps();
private:
ScopedPointer<ResizableBorderComponent> border;
String typeName;
bool selected, dragging, mouseDownSelectStatus;
double originalAspectRatio;
ChangeBroadcaster selfChangeListenerList;
};
//==============================================================================
template <typename ElementType>
class ElementListener : public ChangeListener
{
public:
ElementListener (ElementType* e)
: owner (e), broadcaster (*owner->getDocument()),
propToRefresh (nullptr)
{
broadcaster.addChangeListener (this);
}
~ElementListener()
{
jassert (propToRefresh != nullptr);
broadcaster.removeChangeListener (this);
}
void setPropertyToRefresh (PropertyComponent& pc)
{
propToRefresh = &pc;
}
void changeListenerCallback (ChangeBroadcaster*)
{
jassert (propToRefresh != nullptr);
if (propToRefresh != nullptr)
propToRefresh->refresh();
}
mutable Component::SafePointer<ElementType> owner;
ChangeBroadcaster& broadcaster;
PropertyComponent* propToRefresh;
JUCE_DECLARE_NON_COPYABLE (ElementListener)
};
#endif // JUCER_PAINTELEMENT_H_INCLUDED
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