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https://github.com/juce-framework/JUCE.git
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111 lines
4 KiB
C++
111 lines
4 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2015 - ROLI Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#ifndef JUCER_POINTCOMPONENT_H_INCLUDED
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#define JUCER_POINTCOMPONENT_H_INCLUDED
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#include "jucer_ElementSiblingComponent.h"
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#include "../ui/jucer_PaintRoutineEditor.h"
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//==============================================================================
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class PointComponent : public ElementSiblingComponent
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{
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public:
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PointComponent (PaintElement* const e)
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: ElementSiblingComponent (e)
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{
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setSize (11, 11);
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setMouseCursor (MouseCursor::UpDownLeftRightResizeCursor);
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}
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virtual RelativePositionedRectangle getPosition() = 0;
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virtual void setPosition (const RelativePositionedRectangle& newPos) = 0;
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void updatePosition() override
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{
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if (dynamic_cast<PaintRoutineEditor*> (getParentComponent()) != nullptr)
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{
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const Rectangle<int> area (((PaintRoutineEditor*) getParentComponent())->getComponentArea());
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const Rectangle<int> r (getPosition().getRectangle (area, owner->getDocument()->getComponentLayout()));
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setCentrePosition (r.getX(), r.getY());
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}
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}
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//==============================================================================
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void paint (Graphics& g) override
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{
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g.setColour (Colours::white);
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g.drawEllipse (2.0f, 2.0f, getWidth() - 4.0f, getHeight() - 4.0f, 2.0f);
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g.setColour (Colours::black);
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g.drawEllipse (1.0f, 1.0f, getWidth() - 2.0f, getHeight() - 2.0f, 2.0f);
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}
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//==============================================================================
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void mouseDown (const MouseEvent&) override
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{
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const Rectangle<int> area (((PaintRoutineEditor*) getParentComponent())->getComponentArea());
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dragX = getX() + getWidth() / 2 - area.getX();
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dragY = getY() + getHeight() / 2 - area.getY();
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}
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void mouseDrag (const MouseEvent& e) override
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{
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const Rectangle<int> area (((PaintRoutineEditor*) getParentComponent())->getComponentArea());
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int x = dragX + e.getDistanceFromDragStartX();
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int y = dragY + e.getDistanceFromDragStartY();
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if (JucerDocument* const document = owner->getDocument())
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{
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x = document->snapPosition (x);
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y = document->snapPosition (y);
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const RelativePositionedRectangle original (getPosition());
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RelativePositionedRectangle pr (original);
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Rectangle<int> r (pr.getRectangle (Rectangle<int> (0, 0, area.getWidth(), area.getHeight()),
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document->getComponentLayout()));
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r.setPosition (x, y);
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pr.updateFrom (r.getX(), r.getY(), r.getWidth(), r.getHeight(),
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Rectangle<int> (0, 0, area.getWidth(), area.getHeight()),
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document->getComponentLayout());
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if (pr != original)
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setPosition (pr);
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}
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}
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void mouseUp (const MouseEvent&) override
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{
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}
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private:
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int dragX, dragY;
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};
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#endif // JUCER_POINTCOMPONENT_H_INCLUDED
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