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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_SNAPGRIDPAINTER_H_INCLUDED
#define JUCER_SNAPGRIDPAINTER_H_INCLUDED
#include "../jucer_JucerDocument.h"
#include "../jucer_PaintRoutine.h"
//==============================================================================
class SnapGridPainter
{
public:
SnapGridPainter()
: snapGridSize (-1), snapShown (false)
{
}
bool updateFromDesign (JucerDocument& design)
{
if (snapGridSize != design.getSnappingGridSize()
|| snapShown != (design.isSnapShown() && design.isSnapActive (false)))
{
snapGridSize = design.getSnappingGridSize();
snapShown = design.isSnapShown() && design.isSnapActive (false);
return true;
}
return false;
}
void draw (Graphics& g, PaintRoutine* backgroundGraphics)
{
if (snapShown && snapGridSize > 2)
{
Colour col (Colours::black);
if (backgroundGraphics != nullptr)
col = backgroundGraphics->getBackgroundColour().contrasting();
const Rectangle<int> clip (g.getClipBounds());
RectangleList<float> gridLines;
for (int x = clip.getX() - (clip.getX() % snapGridSize); x < clip.getRight(); x += snapGridSize)
gridLines.addWithoutMerging (Rectangle<float> ((float) x, 0.0f, 1.0f, (float) clip.getBottom()));
for (int y = clip.getY() - (clip.getY() % snapGridSize); y < clip.getBottom(); y += snapGridSize)
gridLines.addWithoutMerging (Rectangle<float> (0.0f, (float) y, (float) clip.getRight(), 1.0f));
g.setColour (col.withAlpha (0.1f));
g.fillRectList (gridLines);
}
}
private:
int snapGridSize;
bool snapShown;
};
#endif // JUCER_SNAPGRIDPAINTER_H_INCLUDED
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