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JUCE/examples/ComponentTutorialExample/Source/ToggleLightGridComponent.h

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2017 - ROLI Ltd.
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 5 End-User License
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
27th April 2017).
End User License Agreement: www.juce.com/juce-5-licence
Privacy Policy: www.juce.com/juce-5-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
#pragma once
#include "ToggleLightComponent.h"
/**
This is the parent class that holds multiple ToggleLightComponents in a grid.
*/
class ToggleLightGridComponent : public Component
{
public:
ToggleLightGridComponent (String name = "grid")
: Component (name)
{
// Adds the child light components and makes them visible
// within this component.
// (they currently rely on having a default constructor
// so they dont have to be individually initialised)
for (int i = 0; i < numX * numY; ++i)
addAndMakeVisible (toggleLights[i]);
}
void resized() override
{
// This creates a grid of rectangles to use as the bounds
// for all of our lights. The grid is defined with the
// width and height of this component.
int stepX = getWidth() / numX;
int stepY = getHeight() / numY;
for (int x = 0; x < numX; ++x)
{
for (int y = 0; y < numY; ++y)
{
// creates the rectangle (x, y, width, height)
Rectangle<int> elementBounds (x * stepX, y * stepY, stepX, stepY);
// set the size and position of the Toggle light to this rectangle.
toggleLights[x + numX * y].setBounds (elementBounds);
}
}
}
private:
// member variables for the Component
static const int numX = 20;
static const int numY = 20;
ToggleLightComponent toggleLights [numX * numY];
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ToggleLightGridComponent)
};