Package org.apache.pivot.wtk

Examples of org.apache.pivot.wtk.ScrollBar

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    }

    protected abstract class ScrollButtonImage extends Image {
        @Override
        public int getWidth() {
            ScrollBar scrollBar = (ScrollBar)getComponent();
            Orientation orientation = scrollBar.getOrientation();
            return (orientation == Orientation.HORIZONTAL ? 5 : 7);
        }
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            return (orientation == Orientation.HORIZONTAL ? 5 : 7);
        }

        @Override
        public int getHeight() {
            ScrollBar scrollBar = (ScrollBar)getComponent();
            Orientation orientation = scrollBar.getOrientation();
            return (orientation == Orientation.HORIZONTAL ? 7 : 5);
        }
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    }

    protected class ScrollUpImage extends ScrollButtonImage {
        @Override
        public void paint(Graphics2D graphics) {
            ScrollBar scrollBar = (ScrollBar)getComponent();

            int width = getWidth();
            int height = getHeight();

            graphics.setPaint(scrollButtonImageColor);
            graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);

            GeneralPath arrow = new GeneralPath(GeneralPath.WIND_EVEN_ODD);

            if (scrollBar.getOrientation() == Orientation.HORIZONTAL) {
                arrow.moveTo(width + 0.5f, 0);
                arrow.lineTo(0, height / 2.0f);
                arrow.lineTo(width + 0.5f, height);
            } else {
                arrow.moveTo(0, height + 0.5f);
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    }

    protected class ScrollDownImage extends ScrollButtonImage {
        @Override
        public void paint(Graphics2D graphics) {
            ScrollBar scrollBar = (ScrollBar)getComponent();

            int width = getWidth();
            int height = getHeight();

            graphics.setPaint(scrollButtonImageColor);
            graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);

            GeneralPath arrow = new GeneralPath(GeneralPath.WIND_EVEN_ODD);

            if (scrollBar.getOrientation() == Orientation.HORIZONTAL) {
                arrow.moveTo(0, 0);
                arrow.lineTo(width + 0.5f, height / 2.0f);
                arrow.lineTo(0, height);
            } else {
                arrow.moveTo(0, 0);
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            // No-op
        }

        @Override
        public void paint(Graphics2D graphics) {
            ScrollBar scrollBar = (ScrollBar)TerraScrollBarSkin.this.getComponent();
            Orientation orientation = scrollBar.getOrientation();

            int width = getWidth();
            int height = getHeight();

            // Paint the background
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        @Override
        public boolean mouseMove(Component component, int x, int y) {
            boolean consumed = super.mouseMove(component, x, y);

            if (Mouse.getCapturer() == component) {
                ScrollBar scrollBar = (ScrollBar)TerraScrollBarSkin.this.getComponent();
                Orientation orientation = scrollBar.getOrientation();

                // Calculate the new scroll bar value
                int pixelValue;
                if (orientation == Orientation.HORIZONTAL) {
                    pixelValue = component.getX() - scrollUpButton.getWidth() + x - dragOffset;
                } else {
                    pixelValue = component.getY() - scrollUpButton.getHeight() + y - dragOffset;
                }

                int realValue = (int)(pixelValue / getValueScale());

                // Bound the value
                int end = scrollBar.getEnd();
                int extent = scrollBar.getExtent();
                realValue = Math.min(Math.max(realValue, 0), end - extent);

                // Update the scroll bar
                scrollBar.setValue(realValue);
            }

            return consumed;
        }
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        @Override
        public boolean mouseDown(Component component, Mouse.Button button, int x, int y) {
            boolean consumed = super.mouseDown(component, button, x, y);

            if (button == Mouse.Button.LEFT) {
                ScrollBar scrollBar = (ScrollBar)TerraScrollBarSkin.this.getComponent();
                Orientation orientation = scrollBar.getOrientation();

                dragOffset = (orientation == Orientation.HORIZONTAL ? x : y);
                Mouse.capture(component);
                consumed = true;
            }
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    @Override
    public void install(Component component) {
        super.install(component);

        ScrollBar scrollBar = (ScrollBar)component;
        scrollBar.getScrollBarListeners().add(this);
        scrollBar.getScrollBarValueListeners().add(this);

        scrollBar.add(scrollUpButton);
        scrollBar.add(scrollDownButton);
        scrollBar.add(handle);

        TerraTheme theme = (TerraTheme)Theme.getTheme();

        Color backgroundColor = theme.getColor(9);
        Color brightBackgroundColor = TerraTheme.brighten(backgroundColor);

        GradientPaint backgroundPaint;
        if (scrollBar.getOrientation() == Orientation.HORIZONTAL) {
            backgroundPaint = new GradientPaint(0, 1, backgroundColor,
                0, DEFAULT_THICKNESS - 2, brightBackgroundColor);
        } else {
            backgroundPaint = new GradientPaint(1, 0, backgroundColor,
                DEFAULT_THICKNESS - 2, 0, brightBackgroundColor);
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        enabledChanged(scrollBar);
    }

    @Override
    public int getPreferredWidth(int height) {
        ScrollBar scrollBar = (ScrollBar)getComponent();

        int preferredWidth = 0;

        if (scrollBar.getOrientation() == Orientation.HORIZONTAL) {
           preferredWidth = DEFAULT_LENGTH;
        } else {
           preferredWidth = DEFAULT_THICKNESS;
        }
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        return preferredWidth;
    }

    @Override
    public int getPreferredHeight(int width) {
        ScrollBar scrollBar = (ScrollBar)getComponent();

        int preferredHeight = 0;

        if (scrollBar.getOrientation() == Orientation.HORIZONTAL) {
            preferredHeight = DEFAULT_THICKNESS;
        } else {
            preferredHeight = DEFAULT_LENGTH;
        }
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Related Classes of org.apache.pivot.wtk.ScrollBar

  • org.apache.pivot.wtk.skin.terra.TerraScrollBarSkin
  • org.apache.pivot.wtk.skin.terra.TerraScrollBarSkin$AutomaticScroller
  • org.apache.pivot.wtk.skin.terra.TerraScrollBarSkin$HandleSkin
  • org.apache.pivot.wtk.skin.terra.TerraScrollBarSkin$ScrollButtonImage
  • org.apache.pivot.wtk.skin.terra.TerraScrollBarSkin$ScrollButtonSkin
  • org.apache.pivot.wtk.skin.terra.TerraScrollBarSkin$ScrollDownImage
  • org.apache.pivot.wtk.skin.terra.TerraScrollBarSkin$ScrollUpImage
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