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https://github.com/juce-framework/JUCE.git
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84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2013 - Raw Material Software 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_SNAPGRIDPAINTER_JUCEHEADER__
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#define __JUCER_SNAPGRIDPAINTER_JUCEHEADER__
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#include "../jucer_JucerDocument.h"
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#include "../jucer_PaintRoutine.h"
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//==============================================================================
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class SnapGridPainter
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{
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public:
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SnapGridPainter()
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: snapGridSize (-1), snapShown (false)
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{
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}
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bool updateFromDesign (JucerDocument& design)
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{
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if (snapGridSize != design.getSnappingGridSize()
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|| snapShown != (design.isSnapShown() && design.isSnapActive (false)))
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{
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snapGridSize = design.getSnappingGridSize();
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snapShown = design.isSnapShown() && design.isSnapActive (false);
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return true;
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}
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return false;
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}
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void draw (Graphics& g, PaintRoutine* backgroundGraphics)
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{
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if (snapShown && snapGridSize > 2)
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{
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Colour col (Colours::black);
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if (backgroundGraphics != nullptr)
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col = backgroundGraphics->getBackgroundColour().contrasting();
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const Rectangle<int> clip (g.getClipBounds());
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RectangleList<float> gridLines;
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for (int x = clip.getX() - (clip.getX() % snapGridSize); x < clip.getRight(); x += snapGridSize)
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gridLines.addWithoutMerging (Rectangle<float> ((float) x, 0.0f, 1.0f, (float) clip.getBottom()));
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for (int y = clip.getY() - (clip.getY() % snapGridSize); y < clip.getBottom(); y += snapGridSize)
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gridLines.addWithoutMerging (Rectangle<float> (0.0f, (float) y, (float) clip.getRight(), 1.0f));
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g.setColour (col.withAlpha (0.1f));
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g.fillRectList (gridLines);
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}
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}
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private:
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int snapGridSize;
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bool snapShown;
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};
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#endif // __JUCER_SNAPGRIDPAINTER_JUCEHEADER__
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