592 lines
17 KiB
C++
592 lines
17 KiB
C++
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/*
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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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TabBarButton::TabBarButton (const String& name, TabbedButtonBar& bar)
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: Button (name), owner (bar)
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{
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setWantsKeyboardFocus (false);
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}
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TabBarButton::~TabBarButton() {}
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int TabBarButton::getIndex() const { return owner.indexOfTabButton (this); }
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Colour TabBarButton::getTabBackgroundColour() const { return owner.getTabBackgroundColour (getIndex()); }
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bool TabBarButton::isFrontTab() const { return getToggleState(); }
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void TabBarButton::paintButton (Graphics& g, const bool shouldDrawButtonAsHighlighted, const bool shouldDrawButtonAsDown)
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{
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getLookAndFeel().drawTabButton (*this, g, shouldDrawButtonAsHighlighted, shouldDrawButtonAsDown);
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}
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void TabBarButton::clicked (const ModifierKeys& mods)
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{
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if (mods.isPopupMenu())
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owner.popupMenuClickOnTab (getIndex(), getButtonText());
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else
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owner.setCurrentTabIndex (getIndex());
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}
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bool TabBarButton::hitTest (int mx, int my)
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{
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auto area = getActiveArea();
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if (owner.isVertical())
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{
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if (isPositiveAndBelow (mx, getWidth())
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&& my >= area.getY() + overlapPixels && my < area.getBottom() - overlapPixels)
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return true;
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}
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else
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{
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if (isPositiveAndBelow (my, getHeight())
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&& mx >= area.getX() + overlapPixels && mx < area.getRight() - overlapPixels)
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return true;
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}
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Path p;
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getLookAndFeel().createTabButtonShape (*this, p, false, false);
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return p.contains ((float) (mx - area.getX()),
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(float) (my - area.getY()));
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}
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int TabBarButton::getBestTabLength (const int depth)
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{
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return getLookAndFeel().getTabButtonBestWidth (*this, depth);
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}
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void TabBarButton::calcAreas (Rectangle<int>& extraComp, Rectangle<int>& textArea) const
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{
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auto& lf = getLookAndFeel();
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textArea = getActiveArea();
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auto depth = owner.isVertical() ? textArea.getWidth() : textArea.getHeight();
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auto overlap = lf.getTabButtonOverlap (depth);
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if (overlap > 0)
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{
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if (owner.isVertical())
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textArea.reduce (0, overlap);
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else
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textArea.reduce (overlap, 0);
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}
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if (extraComponent != nullptr)
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{
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extraComp = lf.getTabButtonExtraComponentBounds (*this, textArea, *extraComponent);
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auto orientation = owner.getOrientation();
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if (orientation == TabbedButtonBar::TabsAtLeft || orientation == TabbedButtonBar::TabsAtRight)
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{
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if (extraComp.getCentreY() > textArea.getCentreY())
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textArea.setBottom (jmin (textArea.getBottom(), extraComp.getY()));
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else
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textArea.setTop (jmax (textArea.getY(), extraComp.getBottom()));
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}
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else
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{
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if (extraCompPlacement == afterText || extraCompPlacement == beforeText) {
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if (extraComp.getCentreX() > textArea.getCentreX())
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textArea.setRight (jmin (textArea.getRight(), extraComp.getX()));
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else
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textArea.setLeft (jmax (textArea.getX(), extraComp.getRight()));
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}
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else {
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if (extraComp.getCentreY() > textArea.getCentreY())
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textArea.setBottom (jmin (textArea.getBottom(), extraComp.getY()));
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else
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textArea.setTop (jmax (textArea.getY(), extraComp.getBottom()));
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}
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}
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}
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}
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Rectangle<int> TabBarButton::getTextArea() const
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{
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Rectangle<int> extraComp, textArea;
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calcAreas (extraComp, textArea);
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return textArea;
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}
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Rectangle<int> TabBarButton::getActiveArea() const
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{
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auto r = getLocalBounds();
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auto spaceAroundImage = getLookAndFeel().getTabButtonSpaceAroundImage();
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auto orientation = owner.getOrientation();
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if (orientation != TabbedButtonBar::TabsAtLeft) r.removeFromRight (spaceAroundImage);
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if (orientation != TabbedButtonBar::TabsAtRight) r.removeFromLeft (spaceAroundImage);
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if (orientation != TabbedButtonBar::TabsAtBottom) r.removeFromTop (spaceAroundImage);
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if (orientation != TabbedButtonBar::TabsAtTop) r.removeFromBottom (spaceAroundImage);
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return r;
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}
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void TabBarButton::setExtraComponent (Component* comp, ExtraComponentPlacement placement)
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{
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jassert (extraCompPlacement == beforeText || extraCompPlacement == afterText || extraCompPlacement == belowText || extraCompPlacement == aboveText);
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extraCompPlacement = placement;
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extraComponent.reset (comp);
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addAndMakeVisible (extraComponent.get());
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resized();
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}
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void TabBarButton::childBoundsChanged (Component* c)
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{
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if (c == extraComponent.get())
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{
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owner.resized();
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resized();
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}
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}
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void TabBarButton::resized()
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{
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if (extraComponent != nullptr)
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{
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Rectangle<int> extraComp, textArea;
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calcAreas (extraComp, textArea);
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if (! extraComp.isEmpty())
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extraComponent->setBounds (extraComp);
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}
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}
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//==============================================================================
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class TabbedButtonBar::BehindFrontTabComp : public Component
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{
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public:
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BehindFrontTabComp (TabbedButtonBar& tb) : owner (tb)
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{
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setInterceptsMouseClicks (false, false);
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}
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void paint (Graphics& g) override
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{
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getLookAndFeel().drawTabAreaBehindFrontButton (owner, g, getWidth(), getHeight());
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}
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void enablementChanged() override
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{
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repaint();
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}
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TabbedButtonBar& owner;
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JUCE_DECLARE_NON_COPYABLE (BehindFrontTabComp)
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};
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//==============================================================================
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TabbedButtonBar::TabbedButtonBar (Orientation orientationToUse)
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: orientation (orientationToUse)
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{
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setInterceptsMouseClicks (false, true);
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behindFrontTab.reset (new BehindFrontTabComp (*this));
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addAndMakeVisible (behindFrontTab.get());
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setFocusContainerType (FocusContainerType::keyboardFocusContainer);
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}
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TabbedButtonBar::~TabbedButtonBar()
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{
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tabs.clear();
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extraTabsButton.reset();
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}
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//==============================================================================
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void TabbedButtonBar::setOrientation (const Orientation newOrientation)
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{
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orientation = newOrientation;
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for (auto* child : getChildren())
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child->resized();
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resized();
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}
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TabBarButton* TabbedButtonBar::createTabButton (const String& name, const int /*index*/)
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{
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return new TabBarButton (name, *this);
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}
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void TabbedButtonBar::setMinimumTabScaleFactor (double newMinimumScale)
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{
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minimumScale = newMinimumScale;
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resized();
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}
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//==============================================================================
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void TabbedButtonBar::clearTabs()
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{
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tabs.clear();
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extraTabsButton.reset();
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setCurrentTabIndex (-1);
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}
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void TabbedButtonBar::addTab (const String& tabName,
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Colour tabBackgroundColour,
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int insertIndex)
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{
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jassert (tabName.isNotEmpty()); // you have to give them all a name..
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if (tabName.isNotEmpty())
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{
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if (! isPositiveAndBelow (insertIndex, tabs.size()))
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insertIndex = tabs.size();
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auto* currentTab = tabs[currentTabIndex];
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auto* newTab = new TabInfo();
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newTab->name = tabName;
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newTab->colour = tabBackgroundColour;
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newTab->button.reset (createTabButton (tabName, insertIndex));
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jassert (newTab->button != nullptr);
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tabs.insert (insertIndex, newTab);
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currentTabIndex = tabs.indexOf (currentTab);
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addAndMakeVisible (newTab->button.get(), insertIndex);
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resized();
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if (currentTabIndex < 0)
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setCurrentTabIndex (0);
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}
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}
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void TabbedButtonBar::setTabName (int tabIndex, const String& newName)
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{
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if (auto* tab = tabs[tabIndex])
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{
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if (tab->name != newName)
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{
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tab->name = newName;
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tab->button->setButtonText (newName);
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resized();
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}
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}
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}
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void TabbedButtonBar::removeTab (const int indexToRemove, const bool animate)
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{
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if (isPositiveAndBelow (indexToRemove, tabs.size()))
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{
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auto oldSelectedIndex = currentTabIndex;
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if (indexToRemove == currentTabIndex)
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oldSelectedIndex = -1;
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else if (indexToRemove < oldSelectedIndex)
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--oldSelectedIndex;
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tabs.remove (indexToRemove);
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setCurrentTabIndex (oldSelectedIndex);
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updateTabPositions (animate);
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}
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}
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void TabbedButtonBar::moveTab (const int currentIndex, const int newIndex, const bool animate)
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{
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auto* currentTab = tabs[currentTabIndex];
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tabs.move (currentIndex, newIndex);
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currentTabIndex = tabs.indexOf (currentTab);
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updateTabPositions (animate);
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}
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int TabbedButtonBar::getNumTabs() const
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{
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return tabs.size();
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}
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String TabbedButtonBar::getCurrentTabName() const
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{
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if (auto* tab = tabs [currentTabIndex])
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return tab->name;
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return {};
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}
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StringArray TabbedButtonBar::getTabNames() const
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{
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StringArray names;
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for (auto* t : tabs)
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names.add (t->name);
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return names;
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}
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void TabbedButtonBar::setCurrentTabIndex (int newIndex, bool shouldSendChangeMessage)
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{
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if (currentTabIndex != newIndex)
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{
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if (! isPositiveAndBelow (newIndex, tabs.size()))
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newIndex = -1;
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currentTabIndex = newIndex;
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for (int i = 0; i < tabs.size(); ++i)
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tabs.getUnchecked(i)->button->setToggleState (i == newIndex, dontSendNotification);
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resized();
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if (shouldSendChangeMessage)
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sendChangeMessage();
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currentTabChanged (newIndex, getCurrentTabName());
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}
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}
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TabBarButton* TabbedButtonBar::getTabButton (const int index) const
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{
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if (auto* tab = tabs[index])
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return static_cast<TabBarButton*> (tab->button.get());
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return nullptr;
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}
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int TabbedButtonBar::indexOfTabButton (const TabBarButton* button) const
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{
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for (int i = tabs.size(); --i >= 0;)
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if (tabs.getUnchecked(i)->button.get() == button)
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return i;
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return -1;
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}
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Rectangle<int> TabbedButtonBar::getTargetBounds (TabBarButton* button) const
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{
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if (button == nullptr || indexOfTabButton (button) == -1)
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return {};
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auto& animator = Desktop::getInstance().getAnimator();
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return animator.isAnimating (button) ? animator.getComponentDestination (button)
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: button->getBounds();
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}
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void TabbedButtonBar::lookAndFeelChanged()
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{
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extraTabsButton.reset();
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resized();
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}
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void TabbedButtonBar::paint (Graphics& g)
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{
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getLookAndFeel().drawTabbedButtonBarBackground (*this, g);
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}
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void TabbedButtonBar::resized()
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{
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updateTabPositions (false);
|
||
|
|
}
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
void TabbedButtonBar::updateTabPositions (bool animate)
|
||
|
|
{
|
||
|
|
auto& lf = getLookAndFeel();
|
||
|
|
|
||
|
|
auto depth = getWidth();
|
||
|
|
auto length = getHeight();
|
||
|
|
|
||
|
|
if (! isVertical())
|
||
|
|
std::swap (depth, length);
|
||
|
|
|
||
|
|
auto overlap = lf.getTabButtonOverlap (depth) + lf.getTabButtonSpaceAroundImage() * 2;
|
||
|
|
|
||
|
|
auto totalLength = jmax (0, overlap);
|
||
|
|
auto numVisibleButtons = tabs.size();
|
||
|
|
|
||
|
|
for (int i = 0; i < tabs.size(); ++i)
|
||
|
|
{
|
||
|
|
auto* tb = tabs.getUnchecked(i)->button.get();
|
||
|
|
|
||
|
|
totalLength += tb->getBestTabLength (depth) - overlap;
|
||
|
|
tb->overlapPixels = jmax (0, overlap / 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
double scale = 1.0;
|
||
|
|
|
||
|
|
if (totalLength > length)
|
||
|
|
scale = jmax (minimumScale, length / (double) totalLength);
|
||
|
|
|
||
|
|
const bool isTooBig = (int) (totalLength * scale) > length;
|
||
|
|
int tabsButtonPos = 0;
|
||
|
|
|
||
|
|
if (isTooBig)
|
||
|
|
{
|
||
|
|
if (extraTabsButton == nullptr)
|
||
|
|
{
|
||
|
|
extraTabsButton.reset (lf.createTabBarExtrasButton());
|
||
|
|
addAndMakeVisible (extraTabsButton.get());
|
||
|
|
extraTabsButton->setAlwaysOnTop (true);
|
||
|
|
extraTabsButton->setTriggeredOnMouseDown (true);
|
||
|
|
extraTabsButton->onClick = [this] { showExtraItemsMenu(); };
|
||
|
|
}
|
||
|
|
|
||
|
|
auto buttonSize = jmin (proportionOfWidth (0.7f), proportionOfHeight (0.7f));
|
||
|
|
extraTabsButton->setSize (buttonSize, buttonSize);
|
||
|
|
|
||
|
|
if (isVertical())
|
||
|
|
{
|
||
|
|
tabsButtonPos = getHeight() - buttonSize / 2 - 1;
|
||
|
|
extraTabsButton->setCentrePosition (getWidth() / 2, tabsButtonPos);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
tabsButtonPos = getWidth() - buttonSize / 2 - 1;
|
||
|
|
extraTabsButton->setCentrePosition (tabsButtonPos, getHeight() / 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
totalLength = 0;
|
||
|
|
|
||
|
|
for (int i = 0; i < tabs.size(); ++i)
|
||
|
|
{
|
||
|
|
auto* tb = tabs.getUnchecked(i)->button.get();
|
||
|
|
auto newLength = totalLength + tb->getBestTabLength (depth);
|
||
|
|
|
||
|
|
if (i > 0 && newLength * minimumScale > tabsButtonPos)
|
||
|
|
{
|
||
|
|
totalLength += overlap;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
numVisibleButtons = i + 1;
|
||
|
|
totalLength = newLength - overlap;
|
||
|
|
}
|
||
|
|
|
||
|
|
scale = jmax (minimumScale, tabsButtonPos / (double) totalLength);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
extraTabsButton.reset();
|
||
|
|
}
|
||
|
|
|
||
|
|
int pos = 0;
|
||
|
|
|
||
|
|
TabBarButton* frontTab = nullptr;
|
||
|
|
auto& animator = Desktop::getInstance().getAnimator();
|
||
|
|
|
||
|
|
for (int i = 0; i < tabs.size(); ++i)
|
||
|
|
{
|
||
|
|
if (auto* tb = getTabButton (i))
|
||
|
|
{
|
||
|
|
auto bestLength = roundToInt (scale * tb->getBestTabLength (depth));
|
||
|
|
|
||
|
|
if (i < numVisibleButtons)
|
||
|
|
{
|
||
|
|
auto newBounds = isVertical() ? Rectangle<int> (0, pos, getWidth(), bestLength)
|
||
|
|
: Rectangle<int> (pos, 0, bestLength, getHeight());
|
||
|
|
|
||
|
|
if (animate)
|
||
|
|
{
|
||
|
|
animator.animateComponent (tb, newBounds, 1.0f, 200, false, 3.0, 0.0);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
animator.cancelAnimation (tb, false);
|
||
|
|
tb->setBounds (newBounds);
|
||
|
|
}
|
||
|
|
|
||
|
|
tb->toBack();
|
||
|
|
|
||
|
|
if (i == currentTabIndex)
|
||
|
|
frontTab = tb;
|
||
|
|
|
||
|
|
tb->setVisible (true);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
tb->setVisible (false);
|
||
|
|
}
|
||
|
|
|
||
|
|
pos += bestLength - overlap;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
behindFrontTab->setBounds (getLocalBounds());
|
||
|
|
|
||
|
|
if (frontTab != nullptr)
|
||
|
|
{
|
||
|
|
frontTab->toFront (false);
|
||
|
|
behindFrontTab->toBehind (frontTab);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
Colour TabbedButtonBar::getTabBackgroundColour (int tabIndex)
|
||
|
|
{
|
||
|
|
if (auto* tab = tabs[tabIndex])
|
||
|
|
return tab->colour;
|
||
|
|
|
||
|
|
return Colours::transparentBlack;
|
||
|
|
}
|
||
|
|
|
||
|
|
void TabbedButtonBar::setTabBackgroundColour (int tabIndex, Colour newColour)
|
||
|
|
{
|
||
|
|
if (auto* tab = tabs [tabIndex])
|
||
|
|
{
|
||
|
|
if (tab->colour != newColour)
|
||
|
|
{
|
||
|
|
tab->colour = newColour;
|
||
|
|
repaint();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void TabbedButtonBar::showExtraItemsMenu()
|
||
|
|
{
|
||
|
|
PopupMenu m;
|
||
|
|
|
||
|
|
for (int i = 0; i < tabs.size(); ++i)
|
||
|
|
{
|
||
|
|
auto* tab = tabs.getUnchecked(i);
|
||
|
|
|
||
|
|
if (! tab->button->isVisible())
|
||
|
|
m.addItem (PopupMenu::Item (tab->name)
|
||
|
|
.setTicked (i == currentTabIndex)
|
||
|
|
.setAction ([this, i] { setCurrentTabIndex (i); }));
|
||
|
|
}
|
||
|
|
|
||
|
|
m.showMenuAsync (PopupMenu::Options()
|
||
|
|
.withDeletionCheck (*this)
|
||
|
|
.withTargetComponent (extraTabsButton.get()));
|
||
|
|
}
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
void TabbedButtonBar::currentTabChanged (int, const String&) {}
|
||
|
|
void TabbedButtonBar::popupMenuClickOnTab (int, const String&) {}
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
std::unique_ptr<AccessibilityHandler> TabbedButtonBar::createAccessibilityHandler()
|
||
|
|
{
|
||
|
|
return std::make_unique<AccessibilityHandler> (*this, AccessibilityRole::group);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace juce
|