gtkpainter.java

来自「java jdk 1.4的源码」· Java 代码 · 共 1,333 行 · 第 1/4 页

    private void paintButtonBackground(SynthContext context, GTKEngine engine,
                                       Graphics g, int x, int y, int w, int h,
                                       String detail) {
        // paing the default shadow
        int state = context.getComponentState();
        int gtkState = GTKLookAndFeel.synthStateToGTKState(
                                      context.getRegion(), state);
        GTKStyle style = (GTKStyle)context.getStyle();
        boolean interiorFocus = style.getClassSpecificBoolValue(context,
                                                 "interior-focus", true);
        int focusSize = style.getClassSpecificIntValue(context,
                                                       "focus-line-width",1);
        int focusPad = style.getClassSpecificIntValue(context, "focus-padding",
                                                      1);
        int totalFocusSize = focusSize + focusPad;
        int xThickness = style.getXThickness();
        int yThickness = style.getYThickness();
        Component component = context.getComponent();

        // Paint the default indicator
        if ((component instanceof JButton) &&
                       ((JButton)component).isDefaultCapable()) {
            Insets defaultInsets = (Insets)style.getClassSpecificInsetsValue(
                      context, "default-border", BUTTON_DEFAULT_BORDER_INSETS);

            if ((state & SynthConstants.DEFAULT) == SynthConstants.DEFAULT) {
                engine.paintBox(context, g, SynthConstants.ENABLED,
                                GTKConstants.SHADOW_IN, "buttondefault",
                                x, y, w, h);
            }
            x += defaultInsets.left;
            y += defaultInsets.top;
            w -= (defaultInsets.left + defaultInsets.right);
            h -= (defaultInsets.top + defaultInsets.bottom);
        }

        // Render the box.
        if (!interiorFocus && (state & SynthConstants.FOCUSED) ==
                              SynthConstants.FOCUSED) {
            x += totalFocusSize;
            y += totalFocusSize;
            w -= 2 * totalFocusSize;
            h -= 2 * totalFocusSize;
        }
        if (!(component.getParent() instanceof JToolBar) ||
                        gtkState != SynthConstants.ENABLED) {
            int shadowType;
            if ((state & SynthConstants.PRESSED) == SynthConstants.PRESSED) {
                shadowType = GTKConstants.SHADOW_IN;
            }
            else {
                shadowType = GTKConstants.SHADOW_OUT;
            }
            engine.paintBox(context, g, gtkState,  shadowType, detail,
                            x, y, w, h);
        }

        // focus
        if ((state & SynthConstants.FOCUSED) == SynthConstants.FOCUSED) {
            if (interiorFocus) {
                x += xThickness + focusPad;
                y += yThickness + focusPad;
                w -= 2 * (xThickness + focusPad);
                h -= 2 * (yThickness + focusPad);
            }
            else {
                x -= totalFocusSize;
                y -= totalFocusSize;
                w += 2 * totalFocusSize;
                h += 2 * totalFocusSize;
            }
            engine.paintFocus(context, g, gtkState, detail, x, y, w, h);
        }
    }


    //
    // ARROW_BUTTON
    //
    private void paintArrowButtonForeground(SynthContext context,
                                            GTKEngine engine, Graphics g,
                                            int x, int y, int w, int h) {
        int state = GTKLookAndFeel.synthStateToGTKState(
                           Region.ARROW_BUTTON, context.getComponentState());
        int shadowType;

        if (state == SynthConstants.PRESSED) {
            shadowType = GTKConstants.SHADOW_OUT;
        }
        else {
            shadowType = GTKConstants.SHADOW_IN;
        }
        int direction = ((SynthArrowButton)context.getComponent()).
                        getDirection();
        switch (direction) {
        case SwingConstants.NORTH:
            direction = GTKConstants.ARROW_UP;
            break;
        case SwingConstants.SOUTH:
            direction = GTKConstants.ARROW_DOWN;
            break;
        case SwingConstants.EAST:
            direction = GTKConstants.ARROW_RIGHT;
            break;
        case SwingConstants.WEST:
            direction = GTKConstants.ARROW_LEFT;
            break;
        }
        Component c = context.getComponent();
        String name = c.getName();
        String detail = "arrow";

        if (name == "ScrollBar.button") {
            if (c.getParent() instanceof JScrollBar) {
                if (((JScrollBar)c.getParent()).getOrientation() ==
                                   SwingConstants.HORIZONTAL) {
                    detail = "hscrollbar";
                }
                else {
                    detail = "vscrollbar";
                }
            }
        }

        // Note quite sure what their algorithm is, but this works pretty
        // good.
        int size = Math.min(w / 2, h / 2);
        x += (w - size) / 2;
        y += (h - size) / 2;

        engine.paintArrow(context, g, state, shadowType, direction,
                          detail, x, y, size, size);
    }

    private void paintArrowButtonBackground(SynthContext context,
                                            GTKEngine engine, Graphics g,
                                            int x, int y, int w, int h) {
        Component c = context.getComponent();
        String name = c.getName();
        String detail = "button";

        if (name == "ScrollBar.button") {
            if (c.getParent() instanceof JScrollBar) {
                if (((JScrollBar)c.getParent()).getOrientation() ==
                                   SwingConstants.HORIZONTAL) {
                    detail = "hscrollbar";
                }
                else {
                    detail = "vscrollbar";
                }
            }
        } else if ("Spinner.previousButton" == name ||
                   "Spinner.nextButton" == name) {
            detail = "spinbutton";
        }
        paintButtonBackground(context, engine, g, x, y, w, h, detail);
    }

    //
    // CHECK_BUTTON 
    //
    private void paintCheckButtonBackground(SynthContext context,
                                            GTKEngine engine, Graphics g,
                                            int x, int y, int w, int h) {
        int gtkState = GTKLookAndFeel.synthStateToGTKState(
                context.getRegion(), context.getComponentState());

        if ((gtkState & SynthConstants.MOUSE_OVER) != 0) {
            engine.paintFlatBoxNormal(context, g, SynthConstants.MOUSE_OVER,
                                "checkbutton", x, y, w, h);
        }
    }


    //
    // CHECK_BUTTON_MENU_ITEM
    //
    public void paintCheckButtonMenuItemBackground(SynthContext context,
                                            GTKEngine engine, Graphics g,
                                            int x, int y, int w, int h) {
        int gtkState = GTKLookAndFeel.synthStateToGTKState(
                context.getRegion(), context.getComponentState());
        if ((context.getComponentState() & SynthConstants.MOUSE_OVER) != 0) {
            engine.paintBox(context, g, gtkState, GTKConstants.SHADOW_OUT,
                "menuitem", x, y, w, h);
        }
    }


    //
    // LIST
    //
    private void paintListBackground(SynthContext context,
                                    GTKEngine engine, Graphics g,
                                    int x, int y, int w, int h) {
        int state = GTKLookAndFeel.synthStateToGTKState(
                Region.LIST, context.getComponentState());

        if (context.getComponent().getName() == "ComboBox.list") {
            // Paint it's shadow.
        }
        engine.paintFlatBoxText(context, g, state, "base", x, y, w, h);

    }

    //
    // MENU_BAR
    //
    private Insets getMenuBarInsets(SynthContext context, Insets insets) {
        GTKStyle style = (GTKStyle)context.getStyle();
        int internalPadding = style.getClassSpecificIntValue(context,
                                                       "internal-padding", 1);
        int xThickness = style.getXThickness();
        int yThickness = style.getYThickness();
        insets.top = insets.bottom = internalPadding + yThickness;
        insets.left = insets.right = internalPadding + xThickness;
        return insets;
    }

    private void paintMenuBarBackground(SynthContext context,
                                        GTKEngine engine, Graphics g,
                                        int x, int y, int w, int h) {
        GTKStyle style = (GTKStyle)context.getStyle();
        int shadowType = style.getClassSpecificIntValue(context,
                "shadow-type", GTKConstants.SHADOW_OUT);
        int gtkState = GTKLookAndFeel.synthStateToGTKState(
                context.getRegion(), context.getComponentState());

        engine.paintBox(context, g, gtkState, shadowType, "menubar",
                x, y, w, h);
    }

    //
    // MENU
    //
    private void paintMenuBackground(SynthContext context,
                                     GTKEngine engine, Graphics g,
                                     int x, int y, int w, int h) {
        int gtkState = GTKLookAndFeel.synthStateToGTKState(
                context.getRegion(), context.getComponentState());
        if (gtkState == SynthConstants.MOUSE_OVER) {
            engine.paintBox(context, g, gtkState, GTKConstants.SHADOW_OUT,
                "menuitem", x, y, w, h);
        }
    }

    //
    // MENU_ITEM
    //
    private Insets getMenuItemInsets(SynthContext context, Insets insets) {
        GTKStyle style = (GTKStyle)context.getStyle();
        int internalPadding = style.getClassSpecificIntValue(context,
                                                       "internal-padding", 1);
        int xThickness = style.getXThickness();
        int yThickness = style.getYThickness();
        insets.top = insets.bottom = internalPadding + yThickness;
        insets.left = insets.right = internalPadding + xThickness;
        return insets;
    }

    private void paintMenuItemBackground(SynthContext context,
                                     GTKEngine engine, Graphics g,
                                     int x, int y, int w, int h) {
        int gtkState = GTKLookAndFeel.synthStateToGTKState(
                context.getRegion(), context.getComponentState());
        if ((context.getComponentState() & SynthConstants.MOUSE_OVER) != 0) {
            engine.paintBox(context, g, gtkState, GTKConstants.SHADOW_OUT,
                "menuitem", x, y, w, h);
        }
    }

    private Insets getPopupMenuInsets(SynthContext context, Insets insets) {
        insets.left = insets.right = insets.top = insets.bottom = 2;
        return insets;
    }
    
    private void paintPopupMenuBackground(SynthContext context,
                                        GTKEngine engine, Graphics g,
                                        int x, int y, int w, int h) {
        int gtkState = GTKLookAndFeel.synthStateToGTKState(
                context.getRegion(), context.getComponentState());
        engine.paintBox(context, g, gtkState, GTKConstants.SHADOW_OUT,
                "menu", x, y, w, h);

        GTKStyle style = (GTKStyle)context.getStyle();
        int xThickness = style.getXThickness();
        int yThickness = style.getYThickness();

        engine.paintBackground(context, g, gtkState, style.getGTKColor(
               context.getComponent(), context.getRegion(), gtkState,
               GTKColorType.BACKGROUND), x + xThickness, y + yThickness,
               w - xThickness - xThickness, h - yThickness - yThickness);
    }

    //
    // PROGRESS_BAR
    //
    private Insets getProgressBarInsets(SynthContext context, Insets insets) {
        GTKStyle style = (GTKStyle)context.getStyle();
        insets.left = insets.right = style.getXThickness();
        insets.top = insets.bottom = style.getYThickness();
        return insets;
    }

    private void paintProgressBarBackground(SynthContext context,
                                            GTKEngine engine, Graphics g,
                                            int x, int y, int w, int h) {
        GTKStyle style = (GTKStyle)context.getStyle();
        w -= style.getXThickness();
        h -= style.getYThickness();
        // Draw the trough.
        engine.paintBox(context, g, SynthConstants.ENABLED,
                            GTKConstants.SHADOW_IN, "trough", x, y, w, h);

    }

    private void paintProgressBarForeground(SynthContext context,
                                            GTKEngine engine, Graphics g,
                                            int x, int y, int w, int h) {
        // Draw the actual progress of the progress bar.
        if (w != 0 || h != 0) {
            engine.paintBox(context, g, SynthConstants.ENABLED,
                GTKConstants.SHADOW_OUT, "bar", x, y, w, h);
        }
    }

    private void paintScrollPaneBackground(SynthContext context,
                                           GTKEngine engine, Graphics g,
                                           int x, int y, int w, int h) {
        engine.paintShadow(context, g, SynthConstants.ENABLED,
                           GTKConstants.SHADOW_IN, "scrolled_window",
                           x, y, w, h);
    }