25bd5d8adb
subrepo: subdir: "deps/juce" merged: "b13f9084e" upstream: origin: "https://github.com/essej/JUCE.git" branch: "sono6good" commit: "b13f9084e" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
239 lines
11 KiB
C++
239 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) 2020 - Raw Material Software Limited
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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 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-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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namespace juce
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{
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//==============================================================================
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/**
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A component that is positioned on either the left- or right-hand side of its parent,
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containing a header and some content. This sort of component is typically used for
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navigation and forms in mobile applications.
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When triggered with the showOrHide() method, the SidePanel will animate itself to its
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new position. This component also contains some logic to reactively resize and dismiss
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itself when the user drags it.
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@tags{GUI}
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*/
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class SidePanel : public Component,
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private ComponentListener,
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private ChangeListener
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{
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public:
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//==============================================================================
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/** Creates a SidePanel component.
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@param title the text to use for the SidePanel's title bar
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@param width the width of the SidePanel
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@param positionOnLeft if true, the SidePanel will be positioned on the left of its parent component and
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if false, the SidePanel will be positioned on the right of its parent component
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@param contentComponent the component to add to this SidePanel - this content will take up the full
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size of the SidePanel, minus the height of the title bar. You can pass nullptr
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to this if you like and set the content component later using the setContent() method
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@param deleteComponentWhenNoLongerNeeded if true, the component will be deleted automatically when
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the SidePanel is deleted or when a different component is added. If false,
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the caller must manage the lifetime of the component
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*/
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SidePanel (StringRef title, int width, bool positionOnLeft,
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Component* contentComponent = nullptr,
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bool deleteComponentWhenNoLongerNeeded = true);
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/** Destructor */
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~SidePanel() override;
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//==============================================================================
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/** Sets the component that this SidePanel will contain.
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This will add the given component to this SidePanel and position it below the title bar.
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(Don't add or remove any child components directly using the normal
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Component::addChildComponent() methods).
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@param newContentComponent the component to add to this SidePanel, or nullptr to remove
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the current component.
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@param deleteComponentWhenNoLongerNeeded if true, the component will be deleted automatically when
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the SidePanel is deleted or when a different component is added. If false,
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the caller must manage the lifetime of the component
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@see getContent
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*/
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void setContent (Component* newContentComponent,
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bool deleteComponentWhenNoLongerNeeded = true);
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/** Returns the component that's currently being used inside the SidePanel.
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@see setViewedComponent
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*/
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Component* getContent() const noexcept { return contentComponent.get(); }
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/** Sets a custom component to be used for the title bar of this SidePanel, replacing
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the default. You can pass a nullptr to revert to the default title bar.
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@param titleBarComponentToUse the component to use as the title bar, or nullptr to use
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the default
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@param keepDismissButton if false the specified component will take up the full width of
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the title bar including the dismiss button but if true, the default
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dismiss button will be kept
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@param deleteComponentWhenNoLongerNeeded if true, the component will be deleted automatically when
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the SidePanel is deleted or when a different component is added. If false,
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the caller must manage the lifetime of the component
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@see getTitleBarComponent
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*/
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void setTitleBarComponent (Component* titleBarComponentToUse,
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bool keepDismissButton,
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bool deleteComponentWhenNoLongerNeeded = true);
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/** Returns the component that is currently being used as the title bar of the SidePanel.
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@see setTitleBarComponent
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*/
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Component* getTitleBarComponent() const noexcept { return titleBarComponent.get(); }
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/** Shows or hides the SidePanel.
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This will animate the SidePanel to either its full width or to be hidden on the
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left- or right-hand side of its parent component depending on the value of positionOnLeft
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that was passed to the constructor.
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@param show if true, this will show the SidePanel and if false the SidePanel will be hidden
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*/
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void showOrHide (bool show);
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//==============================================================================
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/** Returns true if the SidePanel is currently showing. */
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bool isPanelShowing() const noexcept { return isShowing; }
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/** Returns true if the SidePanel is positioned on the left of its parent. */
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bool isPanelOnLeft() const noexcept { return isOnLeft; }
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/** Sets the width of the shadow that will be drawn on the side of the panel. */
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void setShadowWidth (int newWidth) noexcept { shadowWidth = newWidth; }
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/** Returns the width of the shadow that will be drawn on the side of the panel. */
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int getShadowWidth() const noexcept { return shadowWidth; }
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/** Sets the height of the title bar at the top of the SidePanel. */
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void setTitleBarHeight (int newHeight) noexcept { titleBarHeight = newHeight; }
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/** Returns the height of the title bar at the top of the SidePanel. */
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int getTitleBarHeight() const noexcept { return titleBarHeight; }
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/** Returns the text that is displayed in the title bar at the top of the SidePanel. */
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String getTitleText() const noexcept { return titleLabel.getText(); }
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//==============================================================================
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/** This abstract base class is implemented by LookAndFeel classes to provide
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SidePanel drawing functionality.
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*/
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struct JUCE_API LookAndFeelMethods
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{
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virtual ~LookAndFeelMethods() = default;
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virtual Font getSidePanelTitleFont (SidePanel&) = 0;
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virtual Justification getSidePanelTitleJustification (SidePanel&) = 0;
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virtual Path getSidePanelDismissButtonShape (SidePanel&) = 0;
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};
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/** A set of colour IDs to use to change the colour of various aspects of the SidePanel.
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These constants can be used either via the Component::setColour(), or LookAndFeel::setColour()
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methods.
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@see Component::setColour, Component::findColour, LookAndFeel::setColour, LookAndFeel::findColour
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*/
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enum ColourIds
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{
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backgroundColour = 0x100f001,
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titleTextColour = 0x100f002,
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shadowBaseColour = 0x100f003,
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dismissButtonNormalColour = 0x100f004,
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dismissButtonOverColour = 0x100f005,
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dismissButtonDownColour = 0x100f006
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};
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//==============================================================================
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/** You can assign a lambda to this callback object and it will be called when the panel is moved. */
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std::function<void()> onPanelMove;
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/** You can assign a lambda to this callback object and it will be called when the panel is shown or hidden. */
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std::function<void (bool)> onPanelShowHide;
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//==============================================================================
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/** @internal */
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void moved() override;
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/** @internal */
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void resized() override;
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/** @internal */
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void paint (Graphics& g) override;
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/** @internal */
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void parentHierarchyChanged() override;
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/** @internal */
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void mouseDrag (const MouseEvent&) override;
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/** @internal */
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void mouseUp (const MouseEvent&) override;
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private:
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//==============================================================================
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Component* parent = nullptr;
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OptionalScopedPointer<Component> contentComponent;
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OptionalScopedPointer<Component> titleBarComponent;
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Label titleLabel;
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ShapeButton dismissButton { "dismissButton", Colours::lightgrey, Colours::lightgrey, Colours::white };
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Rectangle<int> shadowArea;
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bool isOnLeft = false;
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bool isShowing = false;
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int panelWidth = 0;
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int shadowWidth = 15;
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int titleBarHeight = 40;
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Rectangle<int> startingBounds;
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bool shouldResize = false;
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int amountMoved = 0;
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bool shouldShowDismissButton = true;
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//==============================================================================
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std::unique_ptr<AccessibilityHandler> createAccessibilityHandler() override;
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void lookAndFeelChanged() override;
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void componentMovedOrResized (Component&, bool wasMoved, bool wasResized) override;
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void changeListenerCallback (ChangeBroadcaster*) override;
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Rectangle<int> calculateBoundsInParent (Component&) const;
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void calculateAndRemoveShadowBounds (Rectangle<int>& bounds);
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bool isMouseEventInThisOrChildren (Component*);
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//==============================================================================
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (SidePanel)
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};
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} // namespace juce
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