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| LassoComponent () |
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void | beginLasso (const MouseEvent &e, LassoSource< SelectableItemType > *lassoSource) |
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void | dragLasso (const MouseEvent &e) |
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void | endLasso () |
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void | paint (Graphics &g) override |
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bool | hitTest (int, int) override |
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| Component () noexcept |
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virtual | ~Component () |
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| Component (const String &componentName) noexcept |
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const String & | getName () const noexcept |
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virtual void | setName (const String &newName) |
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const String & | getComponentID () const noexcept |
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void | setComponentID (const String &newID) |
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virtual void | setVisible (bool shouldBeVisible) |
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bool | isVisible () const noexcept |
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virtual void | visibilityChanged () |
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bool | isShowing () const |
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virtual void | addToDesktop (int windowStyleFlags, void *nativeWindowToAttachTo=nullptr) |
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void | removeFromDesktop () |
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bool | isOnDesktop () const noexcept |
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ComponentPeer * | getPeer () const |
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virtual void | userTriedToCloseWindow () |
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virtual void | minimisationStateChanged (bool isNowMinimised) |
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virtual float | getDesktopScaleFactor () const |
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void | toFront (bool shouldAlsoGainFocus) |
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void | toBack () |
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void | toBehind (Component *other) |
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void | setAlwaysOnTop (bool shouldStayOnTop) |
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bool | isAlwaysOnTop () const noexcept |
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int | getX () const noexcept |
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int | getY () const noexcept |
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int | getWidth () const noexcept |
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int | getHeight () const noexcept |
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int | getRight () const noexcept |
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Point< int > | getPosition () const noexcept |
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int | getBottom () const noexcept |
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const Rectangle< int > & | getBounds () const noexcept |
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Rectangle< int > | getLocalBounds () const noexcept |
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Rectangle< int > | getBoundsInParent () const noexcept |
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int | getScreenX () const |
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int | getScreenY () const |
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Point< int > | getScreenPosition () const |
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Rectangle< int > | getScreenBounds () const |
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Point< int > | getLocalPoint (const Component *sourceComponent, Point< int > pointRelativeToSourceComponent) const |
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Point< float > | getLocalPoint (const Component *sourceComponent, Point< float > pointRelativeToSourceComponent) const |
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Rectangle< int > | getLocalArea (const Component *sourceComponent, const Rectangle< int > &areaRelativeToSourceComponent) const |
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Point< int > | localPointToGlobal (Point< int > localPoint) const |
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Point< float > | localPointToGlobal (Point< float > localPoint) const |
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Rectangle< int > | localAreaToGlobal (const Rectangle< int > &localArea) const |
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void | setTopLeftPosition (int x, int y) |
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void | setTopLeftPosition (Point< int > newTopLeftPosition) |
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void | setTopRightPosition (int x, int y) |
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void | setSize (int newWidth, int newHeight) |
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void | setBounds (int x, int y, int width, int height) |
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void | setBounds (const Rectangle< int > &newBounds) |
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void | setBounds (const RelativeRectangle &newBounds) |
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void | setBounds (const String &newBoundsExpression) |
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void | setBoundsRelative (float proportionalX, float proportionalY, float proportionalWidth, float proportionalHeight) |
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void | setBoundsInset (const BorderSize< int > &borders) |
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void | setBoundsToFit (int x, int y, int width, int height, Justification justification, bool onlyReduceInSize) |
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void | setCentrePosition (int x, int y) |
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void | setCentreRelative (float x, float y) |
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void | centreWithSize (int width, int height) |
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void | setTransform (const AffineTransform &transform) |
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AffineTransform | getTransform () const |
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bool | isTransformed () const noexcept |
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int | proportionOfWidth (float proportion) const noexcept |
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int | proportionOfHeight (float proportion) const noexcept |
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int | getParentWidth () const noexcept |
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int | getParentHeight () const noexcept |
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Rectangle< int > | getParentMonitorArea () const |
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int | getNumChildComponents () const noexcept |
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Component * | getChildComponent (int index) const noexcept |
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int | getIndexOfChildComponent (const Component *child) const noexcept |
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Component * | findChildWithID (StringRef componentID) const noexcept |
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void | addChildComponent (Component *child, int zOrder=-1) |
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void | addChildComponent (Component &child, int zOrder=-1) |
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void | addAndMakeVisible (Component *child, int zOrder=-1) |
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void | addAndMakeVisible (Component &child, int zOrder=-1) |
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void | addChildAndSetID (Component *child, const String &componentID) |
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void | removeChildComponent (Component *childToRemove) |
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Component * | removeChildComponent (int childIndexToRemove) |
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void | removeAllChildren () |
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void | deleteAllChildren () |
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Component * | getParentComponent () const noexcept |
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template<class TargetClass > |
TargetClass * | findParentComponentOfClass () const |
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Component * | getTopLevelComponent () const noexcept |
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bool | isParentOf (const Component *possibleChild) const noexcept |
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virtual void | parentHierarchyChanged () |
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virtual void | childrenChanged () |
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void | setInterceptsMouseClicks (bool allowClicksOnThisComponent, bool allowClicksOnChildComponents) noexcept |
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void | getInterceptsMouseClicks (bool &allowsClicksOnThisComponent, bool &allowsClicksOnChildComponents) const noexcept |
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bool | contains (Point< int > localPoint) |
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bool | reallyContains (Point< int > localPoint, bool returnTrueIfWithinAChild) |
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Component * | getComponentAt (int x, int y) |
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Component * | getComponentAt (Point< int > position) |
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void | repaint () |
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void | repaint (int x, int y, int width, int height) |
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void | repaint (const Rectangle< int > &area) |
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void | setBufferedToImage (bool shouldBeBuffered) |
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Image | createComponentSnapshot (const Rectangle< int > &areaToGrab, bool clipImageToComponentBounds=true, float scaleFactor=1.0f) |
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void | paintEntireComponent (Graphics &context, bool ignoreAlphaLevel) |
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void | setPaintingIsUnclipped (bool shouldPaintWithoutClipping) noexcept |
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void | setComponentEffect (ImageEffectFilter *newEffect) |
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ImageEffectFilter * | getComponentEffect () const noexcept |
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LookAndFeel & | getLookAndFeel () const noexcept |
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void | setLookAndFeel (LookAndFeel *newLookAndFeel) |
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virtual void | lookAndFeelChanged () |
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void | sendLookAndFeelChange () |
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void | setOpaque (bool shouldBeOpaque) |
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bool | isOpaque () const noexcept |
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void | setBroughtToFrontOnMouseClick (bool shouldBeBroughtToFront) noexcept |
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bool | isBroughtToFrontOnMouseClick () const noexcept |
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void | setWantsKeyboardFocus (bool wantsFocus) noexcept |
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bool | getWantsKeyboardFocus () const noexcept |
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void | setMouseClickGrabsKeyboardFocus (bool shouldGrabFocus) |
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bool | getMouseClickGrabsKeyboardFocus () const noexcept |
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void | grabKeyboardFocus () |
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bool | hasKeyboardFocus (bool trueIfChildIsFocused) const |
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void | moveKeyboardFocusToSibling (bool moveToNext) |
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virtual KeyboardFocusTraverser * | createFocusTraverser () |
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int | getExplicitFocusOrder () const |
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void | setExplicitFocusOrder (int newFocusOrderIndex) |
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void | setFocusContainer (bool shouldBeFocusContainer) noexcept |
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bool | isFocusContainer () const noexcept |
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bool | isEnabled () const noexcept |
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void | setEnabled (bool shouldBeEnabled) |
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virtual void | enablementChanged () |
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void | setAlpha (float newAlpha) |
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float | getAlpha () const |
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void | setMouseCursor (const MouseCursor &cursorType) |
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virtual MouseCursor | getMouseCursor () |
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void | updateMouseCursor () const |
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virtual void | paintOverChildren (Graphics &g) |
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virtual void | mouseMove (const MouseEvent &event) override |
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virtual void | mouseEnter (const MouseEvent &event) override |
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virtual void | mouseExit (const MouseEvent &event) override |
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virtual void | mouseDown (const MouseEvent &event) override |
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virtual void | mouseDrag (const MouseEvent &event) override |
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virtual void | mouseUp (const MouseEvent &event) override |
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virtual void | mouseDoubleClick (const MouseEvent &event) override |
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virtual void | mouseWheelMove (const MouseEvent &event, const MouseWheelDetails &wheel) override |
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virtual void | mouseMagnify (const MouseEvent &event, float scaleFactor) |
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void | setRepaintsOnMouseActivity (bool shouldRepaint) noexcept |
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void | addMouseListener (MouseListener *newListener, bool wantsEventsForAllNestedChildComponents) |
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void | removeMouseListener (MouseListener *listenerToRemove) |
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void | addKeyListener (KeyListener *newListener) |
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void | removeKeyListener (KeyListener *listenerToRemove) |
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virtual bool | keyPressed (const KeyPress &key) |
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virtual bool | keyStateChanged (bool isKeyDown) |
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virtual void | modifierKeysChanged (const ModifierKeys &modifiers) |
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virtual void | focusGained (FocusChangeType cause) |
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virtual void | focusLost (FocusChangeType cause) |
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virtual void | focusOfChildComponentChanged (FocusChangeType cause) |
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bool | isMouseOver (bool includeChildren=false) const |
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bool | isMouseButtonDown () const |
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bool | isMouseOverOrDragging () const |
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Point< int > | getMouseXYRelative () const |
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virtual void | resized () |
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virtual void | moved () |
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virtual void | childBoundsChanged (Component *child) |
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virtual void | parentSizeChanged () |
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virtual void | broughtToFront () |
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void | addComponentListener (ComponentListener *newListener) |
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void | removeComponentListener (ComponentListener *listenerToRemove) |
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void | postCommandMessage (int commandId) |
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virtual void | handleCommandMessage (int commandId) |
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int | runModalLoop () |
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void | enterModalState (bool takeKeyboardFocus=true, ModalComponentManager::Callback *callback=nullptr, bool deleteWhenDismissed=false) |
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void | exitModalState (int returnValue) |
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bool | isCurrentlyModal () const noexcept |
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bool | isCurrentlyBlockedByAnotherModalComponent () const |
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virtual bool | canModalEventBeSentToComponent (const Component *targetComponent) |
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virtual void | inputAttemptWhenModal () |
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NamedValueSet & | getProperties () noexcept |
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const NamedValueSet & | getProperties () const noexcept |
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Colour | findColour (int colourId, bool inheritFromParent=false) const |
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void | setColour (int colourId, Colour newColour) |
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void | removeColour (int colourId) |
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bool | isColourSpecified (int colourId) const |
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void | copyAllExplicitColoursTo (Component &target) const |
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virtual void | colourChanged () |
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virtual MarkerList * | getMarkers (bool xAxis) |
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void * | getWindowHandle () const |
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Positioner * | getPositioner () const noexcept |
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void | setPositioner (Positioner *newPositioner) |
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void | setCachedComponentImage (CachedComponentImage *newCachedImage) |
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CachedComponentImage * | getCachedComponentImage () const noexcept |
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| JUCE_DEPRECATED (Point< int > relativePositionToGlobal(Point< int >) const) |
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| JUCE_DEPRECATED (Point< int > globalPositionToRelative(Point< int >) const) |
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| JUCE_DEPRECATED (Point< int > relativePositionToOtherComponent(const Component *, Point< int >) const) |
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virtual | ~MouseListener () |
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template<class SelectableItemType>
class juce::LassoComponent< SelectableItemType >
A component that acts as a rectangular selection region, which you drag with the mouse to select groups of objects (in conjunction with a SelectedItemSet).
To use one of these:
- In your mouseDown or mouseDrag event, add the LassoComponent to your parent component, and call its beginLasso() method, giving it a suitable LassoSource object that it can use to find out which items are in the active area.
- Each time your parent component gets a mouseDrag event, call dragLasso() to update the lasso's position - it will use its LassoSource to calculate and update the current selection.
- After the drag has finished and you get a mouseUp callback, you should call endLasso() to clean up. This will make the lasso component invisible, and you can remove it from the parent component, or delete it.
The class takes into account the modifier keys that are being held down while the lasso is being dragged, so if shift is pressed, then any lassoed items will be added to the original selection; if ctrl or command is pressed, they will be xor'ed with any previously selected items.
- See Also
- LassoSource, SelectedItemSet
template<class SelectableItemType >
Tests whether a given point is inside the component.
Overriding this method allows you to create components which only intercept mouse-clicks within a user-defined area.
This is called to find out whether a particular x, y coordinate is considered to be inside the component or not, and is used by methods such as contains() and getComponentAt() to work out which component the mouse is clicked on.
Components with custom shapes will probably want to override it to perform some more complex hit-testing.
The default implementation of this method returns either true or false, depending on the value that was set by calling setInterceptsMouseClicks() (true is the default return value).
Note that the hit-test region is not related to the opacity with which areas of a component are painted.
Applications should never call hitTest() directly - instead use the contains() method, because this will also test for occlusion by the component's parent.
Note that for components on the desktop, this method will be ignored, because it's not always possible to implement this behaviour on all platforms.
- Parameters
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x | the x coordinate to test, relative to the left hand edge of this component. This value is guaranteed to be greater than or equal to zero, and less than the component's width |
y | the y coordinate to test, relative to the top edge of this component. This value is guaranteed to be greater than or equal to zero, and less than the component's height |
- Returns
- true if the click is considered to be inside the component
- See Also
- setInterceptsMouseClicks, contains
Reimplemented from juce::Component.