mirror of
https://github.com/juce-framework/JUCE.git
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344 lines
11 KiB
C++
344 lines
11 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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#include "../JuceDemoHeader.h"
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//==============================================================================
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/** Just a simple window that deletes itself when closed. */
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class BasicWindow : public DocumentWindow
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{
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public:
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BasicWindow (const String& name, Colour backgroundColour, int buttonsNeeded)
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: DocumentWindow (name, backgroundColour, buttonsNeeded)
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{
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}
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void closeButtonPressed()
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{
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delete this;
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}
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private:
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (BasicWindow)
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};
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//==============================================================================
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/** This window contains a ColourSelector which can be used to change the window's colour. */
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class ColourSelectorWindow : public DocumentWindow,
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private ChangeListener
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{
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public:
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ColourSelectorWindow (const String& name, Colour backgroundColour, int buttonsNeeded)
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: DocumentWindow (name, backgroundColour, buttonsNeeded),
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selector (ColourSelector::showColourAtTop
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| ColourSelector::showSliders
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| ColourSelector::showColourspace)
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{
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selector.setCurrentColour (backgroundColour);
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selector.setColour (ColourSelector::backgroundColourId, Colours::transparentWhite);
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selector.addChangeListener (this);
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setContentOwned (&selector, false);
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}
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~ColourSelectorWindow()
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{
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selector.removeChangeListener (this);
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}
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void closeButtonPressed()
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{
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delete this;
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}
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private:
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ColourSelector selector;
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void changeListenerCallback (ChangeBroadcaster* source)
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{
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if (source == &selector)
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setBackgroundColour (selector.getCurrentColour());
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}
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ColourSelectorWindow)
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};
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//==============================================================================
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class BouncingBallComponent : public Component,
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public Timer
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{
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public:
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BouncingBallComponent()
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{
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setInterceptsMouseClicks (false, false);
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Random random;
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const float size = 10.0f + random.nextInt (30);
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ballBounds.setBounds (random.nextFloat() * 100.0f,
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random.nextFloat() * 100.0f,
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size, size);
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direction.x = random.nextFloat() * 8.0f - 4.0f;
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direction.y = random.nextFloat() * 8.0f - 4.0f;
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colour = Colour ((juce::uint32) random.nextInt())
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.withAlpha (0.5f)
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.withBrightness (0.7f);
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startTimer (60);
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}
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void paint (Graphics& g) override
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{
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g.setColour (colour);
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g.fillEllipse (ballBounds - getPosition().toFloat());
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}
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void timerCallback() override
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{
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ballBounds += direction;
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if (ballBounds.getX() < 0) direction.x = std::abs (direction.x);
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if (ballBounds.getY() < 0) direction.y = std::abs (direction.y);
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if (ballBounds.getRight() > getParentWidth()) direction.x = -std::abs (direction.x);
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if (ballBounds.getBottom() > getParentHeight()) direction.y = -std::abs (direction.y);
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setBounds (ballBounds.getSmallestIntegerContainer());
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}
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private:
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Colour colour;
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Rectangle<float> ballBounds;
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Point<float> direction;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (BouncingBallComponent)
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};
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//==============================================================================
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class BouncingBallsContainer : public Component
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{
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public:
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BouncingBallsContainer (int numBalls)
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{
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for (int i = 0; i < numBalls; ++i)
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{
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BouncingBallComponent* newBall = new BouncingBallComponent();
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balls.add (newBall);
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addAndMakeVisible (newBall);
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}
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}
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void mouseDown (const MouseEvent& e) override
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{
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dragger.startDraggingComponent (this, e);
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}
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void mouseDrag (const MouseEvent& e) override
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{
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// as there's no titlebar we have to manage the dragging ourselves
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dragger.dragComponent (this, e, 0);
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}
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void paint (Graphics& g) override
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{
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if (isOpaque())
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g.fillAll (Colours::white);
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else
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g.fillAll (Colours::blue.withAlpha (0.2f));
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g.setFont (16.0f);
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g.setColour (Colours::black);
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g.drawFittedText ("This window has no titlebar and a transparent background.",
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getLocalBounds().reduced (8, 0),
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Justification::centred, 5);
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g.drawRect (getLocalBounds());
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}
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private:
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ComponentDragger dragger;
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OwnedArray<BouncingBallComponent> balls;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (BouncingBallsContainer)
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};
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//==============================================================================
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class WindowsDemo : public Component
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{
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public:
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enum Windows
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{
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dialog,
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document,
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alert,
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numWindows
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};
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WindowsDemo()
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{
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setOpaque (true);
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showWindowsButton.setButtonText ("Show Windows");
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addAndMakeVisible (showWindowsButton);
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showWindowsButton.onClick = [this]() { showAllWindows(); };
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closeWindowsButton.setButtonText ("Close Windows");
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addAndMakeVisible (closeWindowsButton);
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closeWindowsButton.onClick = [this]() { closeAllWindows(); };
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}
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~WindowsDemo()
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{
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if (dialogWindow != nullptr)
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{
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dialogWindow->exitModalState (0);
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// we are shutting down: can't wait for the message manager
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// to eventually delete this
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delete dialogWindow;
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}
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closeAllWindows();
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}
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void paint (Graphics& g) override
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{
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g.fillAll (getUIColourIfAvailable (LookAndFeel_V4::ColourScheme::UIColour::windowBackground,
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Colours::grey));
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}
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void resized() override
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{
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const Rectangle<int> buttonSize (0, 0, 108, 28);
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Rectangle<int> area ((getWidth() / 2) - (buttonSize.getWidth() / 2),
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(getHeight() / 2) - buttonSize.getHeight(),
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buttonSize.getWidth(), buttonSize.getHeight());
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showWindowsButton.setBounds (area.reduced (2));
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closeWindowsButton.setBounds (area.translated (0, buttonSize.getHeight()).reduced (2));
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}
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private:
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// Because in this demo the windows delete themselves, we'll use the
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// Component::SafePointer class to point to them, which automatically becomes
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// null when the component that it points to is deleted.
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Array<Component::SafePointer<Component>> windows;
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TextButton showWindowsButton, closeWindowsButton;
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SafePointer<DialogWindow> dialogWindow;
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void showAllWindows()
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{
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closeAllWindows();
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showDocumentWindow (false);
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showDocumentWindow (true);
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showTransparentWindow();
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showDialogWindow();
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}
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void closeAllWindows()
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{
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for (int i = 0; i < windows.size(); ++i)
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windows.getReference(i).deleteAndZero();
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windows.clear();
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}
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void showDialogWindow()
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{
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String m;
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m << "Dialog Windows can be used to quickly show a component, usually blocking mouse input to other windows." << newLine
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<< newLine
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<< "They can also be quickly closed with the escape key, try it now.";
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DialogWindow::LaunchOptions options;
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Label* label = new Label();
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label->setText (m, dontSendNotification);
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label->setColour (Label::textColourId, Colours::whitesmoke);
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options.content.setOwned (label);
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Rectangle<int> area (0, 0, 300, 200);
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options.content->setSize (area.getWidth(), area.getHeight());
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options.dialogTitle = "Dialog Window";
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options.dialogBackgroundColour = Colour (0xff0e345a);
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options.escapeKeyTriggersCloseButton = true;
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options.useNativeTitleBar = false;
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options.resizable = true;
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dialogWindow = options.launchAsync();
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if (dialogWindow != nullptr)
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dialogWindow->centreWithSize (300, 200);
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}
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void showDocumentWindow (bool native)
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{
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DocumentWindow* dw = new ColourSelectorWindow ("Document Window", getRandomBrightColour(), DocumentWindow::allButtons);
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windows.add (dw);
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Rectangle<int> area (0, 0, 300, 400);
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RectanglePlacement placement ((native ? RectanglePlacement::xLeft
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: RectanglePlacement::xRight)
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| RectanglePlacement::yTop
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| RectanglePlacement::doNotResize);
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Rectangle<int> result (placement.appliedTo (area, Desktop::getInstance().getDisplays()
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.getMainDisplay().userArea.reduced (20)));
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dw->setBounds (result);
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dw->setResizable (true, ! native);
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dw->setUsingNativeTitleBar (native);
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dw->setVisible (true);
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}
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void showTransparentWindow()
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{
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BouncingBallsContainer* balls = new BouncingBallsContainer (3);
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balls->addToDesktop (ComponentPeer::windowIsTemporary);
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windows.add (balls);
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Rectangle<int> area (0, 0, 200, 200);
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RectanglePlacement placement (RectanglePlacement::xLeft
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| RectanglePlacement::yBottom
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| RectanglePlacement::doNotResize);
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Rectangle<int> result (placement.appliedTo (area, Desktop::getInstance().getDisplays()
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.getMainDisplay().userArea.reduced (20)));
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balls->setBounds (result);
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balls->setVisible (true);
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}
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (WindowsDemo)
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};
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// This static object will register this demo type in a global list of demos..
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static JuceDemoType<WindowsDemo> demo ("10 Components: Windows");
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