gtkengine.java

来自「JAVA的一些源码 JAVA2 STANDARD EDITION DEVELO」· Java 代码 · 共 1,225 行 · 第 1/4 页

                    int y2 = h - (offset - max3);
                    int temp = Math.min(next - offset, max4 - offset);
                    g.fillRect(0, y2 - temp, size, temp);
                    offset += temp;
                }
            }
            else {
                offset = next;
            }
            index = (index + 1) % pattern.length;
        }

        g.translate(-x, -y);
    }

    Color getFocusColor(SynthContext context, int state) {
        return ((GTKStyle)context.getStyle()).getGTKColor(
               context.getComponent(), context.getRegion(), state,
               ColorType.FOREGROUND);
    }

    public void paintHandle(SynthContext context, Graphics g, int paintState,
                            int shadowType, String info, int x, int y,
                            int w, int h, int orientation) {
        paintBox(context, g, paintState, shadowType, info, x, y, w, h);

        g.translate(x, y);

        Region region = context.getRegion();
        GTKStyle style = (GTKStyle)context.getStyle();
        JComponent component = context.getComponent();
        Color lightColor = style.getGTKColor(component, region, paintState,
                                          GTKColorType.LIGHT);
        Color darkColor = style.getGTKColor(component, region, paintState,
                                          GTKColorType.DARK);
        Color blackColor = style.getGTKColor(component, region, paintState,
                                          GTKColorType.BLACK);
        int startX;
        int startY;
        if (info == "paned") {
            JSplitPane splitPane = (JSplitPane)component;

            int markerLength = 7 * 3 + 6 * 2;  // 7 markers width of 3
                                               // + 6 spacers width of 2.
            if (orientation == GTKConstants.HORIZONTAL) {
                // Components are above/below.
                startX = w / 2 - markerLength / 2;
                startY = splitPane.getDividerSize() / 2 - 1;
            } else {
                // Components are left/right
                startX = splitPane.getDividerSize() / 2 - 1;
                startY = h / 2 - markerLength / 2;
            }

            for (int i = 0; i < 7; i++) {
                // Add length of one marker and spacing.
                if (orientation == GTKConstants.HORIZONTAL) {
                    startX += 5;
                } else {
                    startY += 5;
                }
                g.setColor(lightColor);
                g.fillRect(startX, startY, 2, 2);
                g.setColor(blackColor);
                g.fillRect(startX + 1, startY + 1, 2, 2);
                g.setColor(darkColor);
                g.fillRect(startX + 1, startY + 1, 1, 1);
            }
        } else if (info == "handlebox") {
            JToolBar tb = (JToolBar)component;
            startX = 2;
            startY = 2;
            if (tb.getOrientation() == JToolBar.HORIZONTAL) {
                while (startY < h) {
                    g.setColor(darkColor);
                    g.fillRect(startX + 1, startY + 1, 2, 2);
                    g.fillRect(startX + 4, startY + 2, 2, 2);
                    g.setColor(lightColor);
                    g.fillRect(startX, startY, 2, 2);
                    g.fillRect(startX + 3, startY + 1, 2, 2);
                    startY += 3;
                }
            } else {
                boolean toggle = true;
                while (startX < w) {
                    g.setColor(darkColor);
                    g.fillRect(startX + 1, startY + 1, 2, 2);
                    g.fillRect(startX + 1, startY + 4, 2, 2);
                    g.setColor(lightColor);
                    g.fillRect(startX, startY, 2, 2);
                    g.fillRect(startX, startY + 3, 2, 2);
                    startX += 3;
                    if (toggle) {
                        startY++;
                        toggle = false;
                    } else {
                        startY--;
                        toggle = true;
                    }
                }
            }
            // Fix up the shadow.
            paintShadow(context, g, paintState, shadowType, info, 0, 0, w, h);
        }
        g.translate(-x, -y);
    }

    public void paintOption(SynthContext context, Graphics g, int paintState,
                            int shadowType, String info, int x, int y,
                            int w, int h) {
        g.translate(x, y);

        int componentState = context.getComponentState();
        int centerY = h / 2 - 1;
        JComponent component = context.getComponent();
        Region region = context.getRegion();
        GTKStyle style = (GTKStyle)context.getStyle();

        // We need to use the state from the context since the state passed in may have been modified.
        int optionState = ((componentState & SynthConstants.PRESSED) == 0) ?
                SynthConstants.ENABLED : SynthConstants.PRESSED; 
        g.setColor(style.getGTKColor(component, region, optionState, GTKColorType.TEXT_BACKGROUND));       

        if (region != Region.RADIO_BUTTON_MENU_ITEM) {
            // Paint center portion.
            g.fillRect(3, centerY - 3, 9, 9);
            g.fillRect(13, centerY - 1, 1, 4);
            g.fillRect(12, centerY + 3, 1, 2);
            g.fillRect(9, centerY + 6, 2, 1);
            g.fillRect(5, centerY + 7, 4, 1);
    
            // Paint dark shadow.
            g.setColor(style.getGTKColor(component, region, SynthConstants.ENABLED,
                                         GTKColorType.DARK));
            g.fillRect(5, centerY - 5, 4, 1);
            g.fillRect(3, centerY - 4, 3, 1);
            g.fillRect(2, centerY - 3, 1, 2);
            g.fillRect(1, centerY - 1, 1, 4);
            g.fillRect(2, centerY + 4, 1, 1);
            g.fillRect(3, centerY + 5, 2, 1);
            g.fillRect(5, centerY + 6, 4, 1);
            g.fillRect(9, centerY + 5, 2, 1);
            g.fillRect(11, centerY + 3, 1, 2);
            g.fillRect(12, centerY - 1, 1, 4);
            g.fillRect(11, centerY - 3, 1, 2);
            g.fillRect(10, centerY - 4, 1, 1);
            
            // Paint black shadow.
            g.setColor(style.getGTKColor(component, region, paintState,
                                         GTKColorType.BLACK));
            g.fillRect(5, centerY - 4, 5, 1);
            g.fillRect(10, centerY - 3, 1, 1);
            g.fillRect(3, centerY - 3, 2, 1);
            g.fillRect(3, centerY - 2, 1, 1);
            g.fillRect(2, centerY - 1, 1, 5);
            g.fillRect(3, centerY + 4, 1, 1);
        }

        // Fill in center if selected.
        if ((componentState & SynthConstants.SELECTED) != 0) {
            g.setColor(style.getGTKColor(component, region, SynthConstants.ENABLED,
                                         GTKColorType.FOREGROUND));
            g.fillRect(5, centerY, 5, 3);
            g.fillRect(6, centerY - 1, 3, 1);
            g.fillRect(6, centerY + 3, 3, 1);
        }
        g.translate(-x, -y);
    }

    public void paintShadow(SynthContext context, Graphics g, int state,
                            int shadowType, String info, int x, int y,
                            int w, int h) {
        if (info == "buttondefault") {
            // YES, this appears to be special cased.
            g.setColor(((GTKStyle)context.getStyle()).getGTKColor(
                           context.getComponent(), context.getRegion(),
                           state, GTKColorType.BLACK));
            g.drawRect(x, y, w - 1, h - 1);
            return;
        }
        GTKStyle style = (GTKStyle)context.getStyle();
        JComponent c = context.getComponent();
        Region region = context.getRegion();
        int xThickness = style.getXThickness();
        int yThickness = style.getYThickness();

        if (info == "trough" ||
                (info == "spinbutton" && c instanceof JButton)) {
            // YES, this appears to be special cased.
            xThickness = yThickness = 1;
        }

        if (xThickness < 0 && yThickness < 0) {
            // nothing to paint.
            return;
        }
        Color upperLeft = null, innerLeft = null, bottomRight = null,
              innerRight = null;
        switch (shadowType) {
        case GTKConstants.SHADOW_IN:
            if (info == "spinbutton" && c instanceof JButton) {
                upperLeft = style.getGTKColor(c, region, state,
                        GTKColorType.DARK);
                innerRight = upperLeft;
                bottomRight = style.getGTKColor(c, region, state,
                        GTKColorType.BLACK);
            } else {
                upperLeft = style.getGTKColor(c, region, state,
                        GTKColorType.DARK);
                innerLeft = style.getGTKColor(c, region, state,
                        GTKColorType.BLACK);
                bottomRight = style.getGTKColor(c, region, state,
                        GTKColorType.LIGHT);
                innerRight = style.getGTKColor(c, region, state,
                        GTKColorType.BACKGROUND);
            }
            break;
        case GTKConstants.SHADOW_OUT:
            upperLeft = style.getGTKColor(c, region, state,GTKColorType.LIGHT);
            innerLeft = style.getGTKColor(c, region, state,
                                          GTKColorType.BACKGROUND);
            bottomRight = style.getGTKColor(c, region, state,
                                            GTKColorType.BLACK);
            innerRight = style.getGTKColor(c, region, state,GTKColorType.DARK);
            break;
        default:
            assert true : "Unknown shadow type!";
        }
        if (info == "spinbutton" && c instanceof JButton) {
            _paintSpinButtonShadow(g, x, y, w, h, xThickness, yThickness,
                    upperLeft, innerLeft, bottomRight, innerRight);
        } else {
            _paintShadow(g,  x, y, w, h, xThickness, yThickness,
                    upperLeft, innerLeft, bottomRight, innerRight);
        }
    }

    void _paintShadow(Graphics g, int x, int y, int w, int h,
                 int xThickness, int yThickness, Color upperLeft,
                 Color innerLeft, Color bottomRight, Color innerRight) {
        g.translate(x, y);
        // left/top
        g.setColor(upperLeft);
        if (xThickness > 0) {
            g.drawLine(0, 0, 0, h - 1);
        }
        if (yThickness > 0) {
            g.drawLine(1, 0, w - 1, 0);
        }

        // Inner left/top
        if (xThickness > 1 || yThickness > 1) {
            g.setColor(innerLeft);
            if (xThickness > 1) {
                g.drawLine(1, 1, 1, h - 2);
            }
            if (yThickness > 1) {
                g.drawLine(2, 1, w - 2, 1);
            }
        }

        // Bottom/right
        g.setColor(bottomRight);
        if (xThickness > 0) {
            g.drawLine(w - 1, 1, w - 1, h - 1);
        }
        if (yThickness > 0) {
            g.drawLine(1, h - 1, w - 2, h - 1);
        }
        // Inner bottom/right
        if (xThickness > 1 || yThickness > 1) {
            g.setColor(innerRight);
            if (xThickness > 1) {
                g.drawLine(w - 2, 2, w - 2, h - 2);
            }
            if (yThickness > 1) {
                g.drawLine(2, h - 2, w - 3, h - 2);
            }
        }
        g.translate(-x, -y);
    }

    void _paintSpinButtonShadow(Graphics g, int x, int y,
                 int w, int h, int xThickness, int yThickness, Color upperLeft,
                 Color innerLeft, Color bottomRight, Color innerRight) {
        g.translate(x, y);

        // top
        g.setColor(upperLeft);
        g.drawLine(0, 0, w - 1, 0);
        // bottom
        g.setColor(innerRight);
        g.drawLine(0, h - 1, w - 1, h - 1);
        // left/right
        g.setColor(bottomRight);
        g.drawLine(0, 0, 0, h - 1);
        g.drawLine(w - 1, 0, w - 1, h - 1);

        g.translate(-x, -y);
    }

    public void paintExpander(SynthContext context, Graphics g, int state,
                              int expanderStyle, String info, int x,
                              int y, int w, int h) {
        if (expanderStyle == GTKConstants.EXPANDER_COLLAPSED) {
            if (state != SynthConstants.MOUSE_OVER) {
                paintHollowTriangle(context, g, state,