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JUCE
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This abstract base class is implemented by LookAndFeel classes to provide scrollbar-drawing functionality. More...
#include <juce_ScrollBar.h>
Public Member Functions | |
| virtual | ~LookAndFeelMethods ()=default |
| virtual bool | areScrollbarButtonsVisible ()=0 |
| virtual void | drawScrollbarButton (Graphics &g, ScrollBar &scrollbar, int width, int height, int buttonDirection, bool isScrollbarVertical, bool isMouseOverButton, bool isButtonDown)=0 |
| Draws one of the buttons on a scrollbar. | |
| virtual void | drawScrollbar (Graphics &g, ScrollBar &scrollbar, int x, int y, int width, int height, bool isScrollbarVertical, int thumbStartPosition, int thumbSize, bool isMouseOver, bool isMouseDown)=0 |
| Draws the thumb area of a scrollbar. | |
| virtual ImageEffectFilter * | getScrollbarEffect ()=0 |
| Returns the component effect to use for a scrollbar. | |
| virtual int | getMinimumScrollbarThumbSize (ScrollBar &)=0 |
| Returns the minimum length in pixels to use for a scrollbar thumb. | |
| virtual int | getDefaultScrollbarWidth ()=0 |
| Returns the default thickness to use for a scrollbar. | |
| virtual int | getScrollbarButtonSize (ScrollBar &)=0 |
| Returns the length in pixels to use for a scrollbar button. | |
This abstract base class is implemented by LookAndFeel classes to provide scrollbar-drawing functionality.
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virtualdefault |
Implemented in LookAndFeel_V2, and LookAndFeel_V3.
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pure virtual |
Draws one of the buttons on a scrollbar.
| g | the context to draw into |
| scrollbar | the bar itself |
| width | the width of the button |
| height | the height of the button |
| buttonDirection | the direction of the button, where 0 = up, 1 = right, 2 = down, 3 = left |
| isScrollbarVertical | true if it's a vertical bar, false if horizontal |
| isMouseOverButton | whether the mouse is currently over the button (also true if it's held down) |
| isButtonDown | whether the mouse button's held down |
Implemented in LookAndFeel_V1, and LookAndFeel_V2.
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pure virtual |
Draws the thumb area of a scrollbar.
| g | the context to draw into |
| scrollbar | the bar itself |
| x | the x position of the left edge of the thumb area to draw in |
| y | the y position of the top edge of the thumb area to draw in |
| width | the width of the thumb area to draw in |
| height | the height of the thumb area to draw in |
| isScrollbarVertical | true if it's a vertical bar, false if horizontal |
| thumbStartPosition | for vertical bars, the y coordinate of the top of the thumb, or its x position for horizontal bars |
| thumbSize | for vertical bars, the height of the thumb, or its width for horizontal bars. This may be 0 if the thumb shouldn't be drawn. |
| isMouseOver | whether the mouse is over the thumb area, also true if the mouse is currently dragging the thumb |
| isMouseDown | whether the mouse is currently dragging the scrollbar |
Implemented in LookAndFeel_V1, LookAndFeel_V2, LookAndFeel_V3, and LookAndFeel_V4.
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pure virtual |
Returns the component effect to use for a scrollbar.
Implemented in LookAndFeel_V1, and LookAndFeel_V2.
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pure virtual |
Returns the minimum length in pixels to use for a scrollbar thumb.
Implemented in LookAndFeel_V2.
Returns the default thickness to use for a scrollbar.
Implemented in LookAndFeel_V2, and LookAndFeel_V4.
Returns the length in pixels to use for a scrollbar button.
Implemented in LookAndFeel_V2.