Java example source code file (GTKEngine.java)
The GTKEngine.java Java example source code/*
* Copyright (c) 2005, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.java.swing.plaf.gtk;
import java.awt.*;
import java.awt.image.*;
import java.util.HashMap;
import javax.swing.*;
import javax.swing.plaf.synth.*;
import com.sun.java.swing.plaf.gtk.GTKConstants.ArrowType;
import com.sun.java.swing.plaf.gtk.GTKConstants.ExpanderStyle;
import com.sun.java.swing.plaf.gtk.GTKConstants.Orientation;
import com.sun.java.swing.plaf.gtk.GTKConstants.PositionType;
import com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType;
import com.sun.java.swing.plaf.gtk.GTKConstants.TextDirection;
import sun.awt.image.SunWritableRaster;
import sun.swing.ImageCache;
/**
* GTKEngine delegates all painting job to native GTK libraries.
*
* Painting with GTKEngine looks like this:
* First, startPainting() is called. It prepares an offscreen buffer of the
* required size.
* Then, any number of paintXXX() methods can be called. They effectively ignore
* the Graphics parameter and draw to the offscreen buffer.
* Finally, finishPainting() should be called. It fills the data buffer passed
* in with the image data.
*
* @author Josh Outwater
*/
class GTKEngine {
final static GTKEngine INSTANCE = new GTKEngine();
/** Size of the image cache */
private static final int CACHE_SIZE = 50;
/** This enum mirrors that in gtk2_interface.h */
static enum WidgetType {
BUTTON, CHECK_BOX, CHECK_BOX_MENU_ITEM, COLOR_CHOOSER,
COMBO_BOX, COMBO_BOX_ARROW_BUTTON, COMBO_BOX_TEXT_FIELD,
DESKTOP_ICON, DESKTOP_PANE, EDITOR_PANE, FORMATTED_TEXT_FIELD,
HANDLE_BOX, HPROGRESS_BAR,
HSCROLL_BAR, HSCROLL_BAR_BUTTON_LEFT, HSCROLL_BAR_BUTTON_RIGHT,
HSCROLL_BAR_TRACK, HSCROLL_BAR_THUMB,
HSEPARATOR, HSLIDER, HSLIDER_TRACK, HSLIDER_THUMB, HSPLIT_PANE_DIVIDER,
INTERNAL_FRAME, INTERNAL_FRAME_TITLE_PANE, IMAGE, LABEL, LIST, MENU,
MENU_BAR, MENU_ITEM, MENU_ITEM_ACCELERATOR, OPTION_PANE, PANEL,
PASSWORD_FIELD, POPUP_MENU, POPUP_MENU_SEPARATOR,
RADIO_BUTTON, RADIO_BUTTON_MENU_ITEM, ROOT_PANE, SCROLL_PANE,
SPINNER, SPINNER_ARROW_BUTTON, SPINNER_TEXT_FIELD,
SPLIT_PANE, TABBED_PANE, TABBED_PANE_TAB_AREA, TABBED_PANE_CONTENT,
TABBED_PANE_TAB, TABLE, TABLE_HEADER, TEXT_AREA, TEXT_FIELD, TEXT_PANE,
TITLED_BORDER,
TOGGLE_BUTTON, TOOL_BAR, TOOL_BAR_DRAG_WINDOW, TOOL_BAR_SEPARATOR,
TOOL_TIP, TREE, TREE_CELL, VIEWPORT, VPROGRESS_BAR,
VSCROLL_BAR, VSCROLL_BAR_BUTTON_UP, VSCROLL_BAR_BUTTON_DOWN,
VSCROLL_BAR_TRACK, VSCROLL_BAR_THUMB,
VSEPARATOR, VSLIDER, VSLIDER_TRACK, VSLIDER_THUMB,
VSPLIT_PANE_DIVIDER
}
/**
* Representation of GtkSettings properties.
* When we need more settings we can add them here and
* to all implementations of getGTKSetting().
*/
static enum Settings {
GTK_FONT_NAME,
GTK_ICON_SIZES
}
/* Custom regions are needed for representing regions that don't exist
* in the original Region class.
*/
static class CustomRegion extends Region {
/*
* TITLED_BORDER Region is mapped to GtkFrame class which can draw
* titled borders around components.
*/
static Region TITLED_BORDER = new CustomRegion("TitledBorder");
private CustomRegion(String name) {
super(name, null, false);
}
}
private static HashMap<Region, Object> regionToWidgetTypeMap;
private ImageCache cache = new ImageCache(CACHE_SIZE);
private int x0, y0, w0, h0;
private Graphics graphics;
private Object[] cacheArgs;
private native void native_paint_arrow(
int widgetType, int state, int shadowType, String detail,
int x, int y, int width, int height, int arrowType);
private native void native_paint_box(
int widgetType, int state, int shadowType, String detail,
int x, int y, int width, int height, int synthState, int dir);
private native void native_paint_box_gap(
int widgetType, int state, int shadowType, String detail,
int x, int y, int width, int height,
int gapSide, int gapX, int gapWidth);
private native void native_paint_check(
int widgetType, int synthState, String detail,
int x, int y, int width, int height);
private native void native_paint_expander(
int widgetType, int state, String detail,
int x, int y, int width, int height, int expanderStyle);
private native void native_paint_extension(
int widgetType, int state, int shadowType, String detail,
int x, int y, int width, int height, int placement);
private native void native_paint_flat_box(
int widgetType, int state, int shadowType, String detail,
int x, int y, int width, int height, boolean hasFocus);
private native void native_paint_focus(
int widgetType, int state, String detail,
int x, int y, int width, int height);
private native void native_paint_handle(
int widgetType, int state, int shadowType, String detail,
int x, int y, int width, int height, int orientation);
private native void native_paint_hline(
int widgetType, int state, String detail,
int x, int y, int width, int height);
private native void native_paint_option(
int widgetType, int synthState, String detail,
int x, int y, int width, int height);
private native void native_paint_shadow(
int widgetType, int state, int shadowType, String detail,
int x, int y, int width, int height, int synthState, int dir);
private native void native_paint_slider(
int widgetType, int state, int shadowType, String detail,
int x, int y, int width, int height, int orientation);
private native void native_paint_vline(
int widgetType, int state, String detail,
int x, int y, int width, int height);
private native void native_paint_background(
int widgetType, int state, int x, int y, int width, int height);
private native Object native_get_gtk_setting(int property);
private native void nativeSetRangeValue(int widgetType, double value,
double min, double max,
double visible);
private native void nativeStartPainting(int w, int h);
private native int nativeFinishPainting(int[] buffer, int width, int height);
private native void native_switch_theme();
static {
// Make sure the awt toolkit is loaded so we have access to native
// methods.
Toolkit.getDefaultToolkit();
// Initialize regionToWidgetTypeMap
regionToWidgetTypeMap = new HashMap<Region, Object>(50);
regionToWidgetTypeMap.put(Region.ARROW_BUTTON, new WidgetType[] {
WidgetType.SPINNER_ARROW_BUTTON,
WidgetType.COMBO_BOX_ARROW_BUTTON,
WidgetType.HSCROLL_BAR_BUTTON_LEFT,
WidgetType.HSCROLL_BAR_BUTTON_RIGHT,
WidgetType.VSCROLL_BAR_BUTTON_UP,
WidgetType.VSCROLL_BAR_BUTTON_DOWN});
regionToWidgetTypeMap.put(Region.BUTTON, WidgetType.BUTTON);
regionToWidgetTypeMap.put(Region.CHECK_BOX, WidgetType.CHECK_BOX);
regionToWidgetTypeMap.put(Region.CHECK_BOX_MENU_ITEM,
WidgetType.CHECK_BOX_MENU_ITEM);
regionToWidgetTypeMap.put(Region.COLOR_CHOOSER, WidgetType.COLOR_CHOOSER);
regionToWidgetTypeMap.put(Region.FILE_CHOOSER, WidgetType.OPTION_PANE);
regionToWidgetTypeMap.put(Region.COMBO_BOX, WidgetType.COMBO_BOX);
regionToWidgetTypeMap.put(Region.DESKTOP_ICON, WidgetType.DESKTOP_ICON);
regionToWidgetTypeMap.put(Region.DESKTOP_PANE, WidgetType.DESKTOP_PANE);
regionToWidgetTypeMap.put(Region.EDITOR_PANE, WidgetType.EDITOR_PANE);
regionToWidgetTypeMap.put(Region.FORMATTED_TEXT_FIELD, new WidgetType[] {
WidgetType.FORMATTED_TEXT_FIELD, WidgetType.SPINNER_TEXT_FIELD});
regionToWidgetTypeMap.put(GTKRegion.HANDLE_BOX, WidgetType.HANDLE_BOX);
regionToWidgetTypeMap.put(Region.INTERNAL_FRAME,
WidgetType.INTERNAL_FRAME);
regionToWidgetTypeMap.put(Region.INTERNAL_FRAME_TITLE_PANE,
WidgetType.INTERNAL_FRAME_TITLE_PANE);
regionToWidgetTypeMap.put(Region.LABEL, new WidgetType[] {
WidgetType.LABEL, WidgetType.COMBO_BOX_TEXT_FIELD});
regionToWidgetTypeMap.put(Region.LIST, WidgetType.LIST);
regionToWidgetTypeMap.put(Region.MENU, WidgetType.MENU);
regionToWidgetTypeMap.put(Region.MENU_BAR, WidgetType.MENU_BAR);
regionToWidgetTypeMap.put(Region.MENU_ITEM, WidgetType.MENU_ITEM);
regionToWidgetTypeMap.put(Region.MENU_ITEM_ACCELERATOR,
WidgetType.MENU_ITEM_ACCELERATOR);
regionToWidgetTypeMap.put(Region.OPTION_PANE, WidgetType.OPTION_PANE);
regionToWidgetTypeMap.put(Region.PANEL, WidgetType.PANEL);
regionToWidgetTypeMap.put(Region.PASSWORD_FIELD,
WidgetType.PASSWORD_FIELD);
regionToWidgetTypeMap.put(Region.POPUP_MENU, WidgetType.POPUP_MENU);
regionToWidgetTypeMap.put(Region.POPUP_MENU_SEPARATOR,
WidgetType.POPUP_MENU_SEPARATOR);
regionToWidgetTypeMap.put(Region.PROGRESS_BAR, new WidgetType[] {
WidgetType.HPROGRESS_BAR, WidgetType.VPROGRESS_BAR});
regionToWidgetTypeMap.put(Region.RADIO_BUTTON, WidgetType.RADIO_BUTTON);
regionToWidgetTypeMap.put(Region.RADIO_BUTTON_MENU_ITEM,
WidgetType.RADIO_BUTTON_MENU_ITEM);
regionToWidgetTypeMap.put(Region.ROOT_PANE, WidgetType.ROOT_PANE);
regionToWidgetTypeMap.put(Region.SCROLL_BAR, new WidgetType[] {
WidgetType.HSCROLL_BAR, WidgetType.VSCROLL_BAR});
regionToWidgetTypeMap.put(Region.SCROLL_BAR_THUMB, new WidgetType[] {
WidgetType.HSCROLL_BAR_THUMB, WidgetType.VSCROLL_BAR_THUMB});
regionToWidgetTypeMap.put(Region.SCROLL_BAR_TRACK, new WidgetType[] {
WidgetType.HSCROLL_BAR_TRACK, WidgetType.VSCROLL_BAR_TRACK});
regionToWidgetTypeMap.put(Region.SCROLL_PANE, WidgetType.SCROLL_PANE);
regionToWidgetTypeMap.put(Region.SEPARATOR, new WidgetType[] {
WidgetType.HSEPARATOR, WidgetType.VSEPARATOR});
regionToWidgetTypeMap.put(Region.SLIDER, new WidgetType[] {
WidgetType.HSLIDER, WidgetType.VSLIDER});
regionToWidgetTypeMap.put(Region.SLIDER_THUMB, new WidgetType[] {
WidgetType.HSLIDER_THUMB, WidgetType.VSLIDER_THUMB});
regionToWidgetTypeMap.put(Region.SLIDER_TRACK, new WidgetType[] {
WidgetType.HSLIDER_TRACK, WidgetType.VSLIDER_TRACK});
regionToWidgetTypeMap.put(Region.SPINNER, WidgetType.SPINNER);
regionToWidgetTypeMap.put(Region.SPLIT_PANE, WidgetType.SPLIT_PANE);
regionToWidgetTypeMap.put(Region.SPLIT_PANE_DIVIDER, new WidgetType[] {
WidgetType.HSPLIT_PANE_DIVIDER, WidgetType.VSPLIT_PANE_DIVIDER});
regionToWidgetTypeMap.put(Region.TABBED_PANE, WidgetType.TABBED_PANE);
regionToWidgetTypeMap.put(Region.TABBED_PANE_CONTENT,
WidgetType.TABBED_PANE_CONTENT);
regionToWidgetTypeMap.put(Region.TABBED_PANE_TAB,
WidgetType.TABBED_PANE_TAB);
regionToWidgetTypeMap.put(Region.TABBED_PANE_TAB_AREA,
WidgetType.TABBED_PANE_TAB_AREA);
regionToWidgetTypeMap.put(Region.TABLE, WidgetType.TABLE);
regionToWidgetTypeMap.put(Region.TABLE_HEADER, WidgetType.TABLE_HEADER);
regionToWidgetTypeMap.put(Region.TEXT_AREA, WidgetType.TEXT_AREA);
regionToWidgetTypeMap.put(Region.TEXT_FIELD, new WidgetType[] {
WidgetType.TEXT_FIELD, WidgetType.COMBO_BOX_TEXT_FIELD});
regionToWidgetTypeMap.put(Region.TEXT_PANE, WidgetType.TEXT_PANE);
regionToWidgetTypeMap.put(CustomRegion.TITLED_BORDER, WidgetType.TITLED_BORDER);
regionToWidgetTypeMap.put(Region.TOGGLE_BUTTON, WidgetType.TOGGLE_BUTTON);
regionToWidgetTypeMap.put(Region.TOOL_BAR, WidgetType.TOOL_BAR);
regionToWidgetTypeMap.put(Region.TOOL_BAR_CONTENT, WidgetType.TOOL_BAR);
regionToWidgetTypeMap.put(Region.TOOL_BAR_DRAG_WINDOW,
WidgetType.TOOL_BAR_DRAG_WINDOW);
regionToWidgetTypeMap.put(Region.TOOL_BAR_SEPARATOR,
WidgetType.TOOL_BAR_SEPARATOR);
regionToWidgetTypeMap.put(Region.TOOL_TIP, WidgetType.TOOL_TIP);
regionToWidgetTypeMap.put(Region.TREE, WidgetType.TREE);
regionToWidgetTypeMap.put(Region.TREE_CELL, WidgetType.TREE_CELL);
regionToWidgetTypeMap.put(Region.VIEWPORT, WidgetType.VIEWPORT);
}
/** Translate Region and JComponent into WidgetType ordinals */
static WidgetType getWidgetType(JComponent c, Region id) {
Object value = regionToWidgetTypeMap.get(id);
if (value instanceof WidgetType) {
return (WidgetType)value;
}
WidgetType[] widgets = (WidgetType[])value;
if (c == null ) {
return widgets[0];
}
if (c instanceof JScrollBar) {
return (((JScrollBar)c).getOrientation() == JScrollBar.HORIZONTAL) ?
widgets[0] : widgets[1];
} else if (c instanceof JSeparator) {
JSeparator separator = (JSeparator)c;
/* We should return correrct WidgetType if the seperator is inserted
* in Menu/PopupMenu/ToolBar. BugID: 6465603
*/
if (separator.getParent() instanceof JPopupMenu) {
return WidgetType.POPUP_MENU_SEPARATOR;
} else if (separator.getParent() instanceof JToolBar) {
return WidgetType.TOOL_BAR_SEPARATOR;
}
return (separator.getOrientation() == JSeparator.HORIZONTAL) ?
widgets[0] : widgets[1];
} else if (c instanceof JSlider) {
return (((JSlider)c).getOrientation() == JSlider.HORIZONTAL) ?
widgets[0] : widgets[1];
} else if (c instanceof JProgressBar) {
return (((JProgressBar)c).getOrientation() == JProgressBar.HORIZONTAL) ?
widgets[0] : widgets[1];
} else if (c instanceof JSplitPane) {
return (((JSplitPane)c).getOrientation() == JSplitPane.HORIZONTAL_SPLIT) ?
widgets[1] : widgets[0];
} else if (id == Region.LABEL) {
/*
* For all ListCellRenderers we will use COMBO_BOX_TEXT_FIELD widget
* type because we can get correct insets. List items however won't be
* drawn as a text entry (see GTKPainter.paintLabelBackground).
*/
if (c instanceof ListCellRenderer) {
return widgets[1];
} else {
return widgets[0];
}
} else if (id == Region.TEXT_FIELD) {
String name = c.getName();
if (name != null && name.startsWith("ComboBox")) {
return widgets[1];
} else {
return widgets[0];
}
} else if (id == Region.FORMATTED_TEXT_FIELD) {
String name = c.getName();
if (name != null && name.startsWith("Spinner")) {
return widgets[1];
} else {
return widgets[0];
}
} else if (id == Region.ARROW_BUTTON) {
if (c.getParent() instanceof JScrollBar) {
Integer prop = (Integer)
c.getClientProperty("__arrow_direction__");
int dir = (prop != null) ?
prop.intValue() : SwingConstants.WEST;
switch (dir) {
case SwingConstants.WEST:
return WidgetType.HSCROLL_BAR_BUTTON_LEFT;
case SwingConstants.EAST:
return WidgetType.HSCROLL_BAR_BUTTON_RIGHT;
case SwingConstants.NORTH:
return WidgetType.VSCROLL_BAR_BUTTON_UP;
case SwingConstants.SOUTH:
return WidgetType.VSCROLL_BAR_BUTTON_DOWN;
default:
return null;
}
} else if (c.getParent() instanceof JComboBox) {
return WidgetType.COMBO_BOX_ARROW_BUTTON;
} else {
return WidgetType.SPINNER_ARROW_BUTTON;
}
}
return null;
}
private static int getTextDirection(SynthContext context) {
TextDirection dir = TextDirection.NONE;
JComponent comp = context.getComponent();
if (comp != null) {
ComponentOrientation co = comp.getComponentOrientation();
if (co != null) {
dir = co.isLeftToRight() ?
TextDirection.LTR : TextDirection.RTL;
}
}
return dir.ordinal();
}
public void paintArrow(Graphics g, SynthContext context,
Region id, int state, ShadowType shadowType, ArrowType direction,
String detail, int x, int y, int w, int h) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_arrow(widget, state, shadowType.ordinal(),
detail, x - x0, y - y0, w, h, direction.ordinal());
}
public void paintBox(Graphics g, SynthContext context,
Region id, int state, ShadowType shadowType,
String detail, int x, int y, int w, int h) {
int gtkState =
GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int synthState = context.getComponentState();
int dir = getTextDirection(context);
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_box(widget, gtkState, shadowType.ordinal(),
detail, x - x0, y - y0, w, h, synthState, dir);
}
public void paintBoxGap(Graphics g, SynthContext context,
Region id, int state, ShadowType shadowType,
String detail, int x, int y, int w, int h,
PositionType boxGapType, int tabBegin, int size) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_box_gap(widget, state, shadowType.ordinal(), detail,
x - x0, y - y0, w, h, boxGapType.ordinal(), tabBegin, size);
}
public void paintCheck(Graphics g, SynthContext context,
Region id, String detail, int x, int y, int w, int h) {
int synthState = context.getComponentState();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_check(widget, synthState, detail, x - x0, y - y0, w, h);
}
public void paintExpander(Graphics g, SynthContext context,
Region id, int state, ExpanderStyle expanderStyle, String detail,
int x, int y, int w, int h) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_expander(widget, state, detail, x - x0, y - y0, w, h,
expanderStyle.ordinal());
}
public void paintExtension(Graphics g, SynthContext context,
Region id, int state, ShadowType shadowType, String detail,
int x, int y, int w, int h, PositionType placement, int tabIndex) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_extension(widget, state, shadowType.ordinal(), detail,
x - x0, y - y0, w, h, placement.ordinal());
}
public void paintFlatBox(Graphics g, SynthContext context,
Region id, int state, ShadowType shadowType, String detail,
int x, int y, int w, int h, ColorType colorType) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_flat_box(widget, state, shadowType.ordinal(), detail,
x - x0, y - y0, w, h,
context.getComponent().hasFocus());
}
public void paintFocus(Graphics g, SynthContext context,
Region id, int state, String detail, int x, int y, int w, int h) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_focus(widget, state, detail, x - x0, y - y0, w, h);
}
public void paintHandle(Graphics g, SynthContext context,
Region id, int state, ShadowType shadowType, String detail,
int x, int y, int w, int h, Orientation orientation) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_handle(widget, state, shadowType.ordinal(), detail,
x - x0, y - y0, w, h, orientation.ordinal());
}
public void paintHline(Graphics g, SynthContext context,
Region id, int state, String detail, int x, int y, int w, int h) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_hline(widget, state, detail, x - x0, y - y0, w, h);
}
public void paintOption(Graphics g, SynthContext context,
Region id, String detail, int x, int y, int w, int h) {
int synthState = context.getComponentState();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_option(widget, synthState, detail, x - x0, y - y0, w, h);
}
public void paintShadow(Graphics g, SynthContext context,
Region id, int state, ShadowType shadowType, String detail,
int x, int y, int w, int h) {
int gtkState =
GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int synthState = context.getComponentState();
int dir = getTextDirection(context);
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_shadow(widget, gtkState, shadowType.ordinal(), detail,
x - x0, y - y0, w, h, synthState, dir);
}
public void paintSlider(Graphics g, SynthContext context,
Region id, int state, ShadowType shadowType, String detail,
int x, int y, int w, int h, Orientation orientation) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_slider(widget, state, shadowType.ordinal(), detail,
x - x0, y - y0, w, h, orientation.ordinal());
}
public void paintVline(Graphics g, SynthContext context,
Region id, int state, String detail, int x, int y, int w, int h) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_vline(widget, state, detail, x - x0, y - y0, w, h);
}
public void paintBackground(Graphics g, SynthContext context,
Region id, int state, Color color, int x, int y, int w, int h) {
state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
int widget = getWidgetType(context.getComponent(), id).ordinal();
native_paint_background(widget, state, x - x0, y - y0, w, h);
}
private final static ColorModel[] COLOR_MODELS = {
// Transparency.OPAQUE
new DirectColorModel(24, 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000),
// Transparency.BITMASK
new DirectColorModel(25, 0x00ff0000, 0x0000ff00, 0x000000ff, 0x01000000),
// Transparency.TRANSLUCENT
ColorModel.getRGBdefault(),
};
private final static int[][] BAND_OFFSETS = {
{ 0x00ff0000, 0x0000ff00, 0x000000ff }, // OPAQUE
{ 0x00ff0000, 0x0000ff00, 0x000000ff, 0x01000000 }, // BITMASK
{ 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 } // TRANSLUCENT
};
/**
* Paint a cached image identified by its size and a set of additional
* arguments, if there's one.
*
* @return true if a cached image has been painted, false otherwise
*/
public boolean paintCachedImage(Graphics g,
int x, int y, int w, int h, Object... args) {
if (w <= 0 || h <= 0) {
return true;
}
// look for cached image
Image img = cache.getImage(getClass(), null, w, h, args);
if (img != null) {
g.drawImage(img, x, y, null);
return true;
}
return false;
}
/*
* Allocate a native offscreen buffer of the specified size.
*/
public void startPainting(Graphics g,
int x, int y, int w, int h, Object... args) {
nativeStartPainting(w, h);
x0 = x;
y0 = y;
w0 = w;
h0 = h;
graphics = g;
cacheArgs = args;
}
/**
* Convenience method that delegates to finishPainting() with
* caching enabled.
*/
public void finishPainting() {
finishPainting(true);
}
/**
* Called to indicate that painting is finished. We create a new
* BufferedImage from the offscreen buffer, (optionally) cache it,
* and paint it.
*/
public void finishPainting(boolean useCache) {
DataBufferInt dataBuffer = new DataBufferInt(w0 * h0);
// Note that stealData() requires a markDirty() afterwards
// since we modify the data in it.
int transparency =
nativeFinishPainting(SunWritableRaster.stealData(dataBuffer, 0),
w0, h0);
SunWritableRaster.markDirty(dataBuffer);
int[] bands = BAND_OFFSETS[transparency - 1];
WritableRaster raster = Raster.createPackedRaster(
dataBuffer, w0, h0, w0, bands, null);
ColorModel cm = COLOR_MODELS[transparency - 1];
Image img = new BufferedImage(cm, raster, false, null);
if (useCache) {
cache.setImage(getClass(), null, w0, h0, cacheArgs, img);
}
graphics.drawImage(img, x0, y0, null);
}
/**
* Notify native layer of theme change, and flush cache
*/
public void themeChanged() {
synchronized(sun.awt.UNIXToolkit.GTK_LOCK) {
native_switch_theme();
}
cache.flush();
}
/* GtkSettings enum mirrors that in gtk2_interface.h */
public Object getSetting(Settings property) {
synchronized(sun.awt.UNIXToolkit.GTK_LOCK) {
return native_get_gtk_setting(property.ordinal());
}
}
/**
* Sets up the GtkAdjustment values for the native GtkRange widget
* associated with the given region (e.g. SLIDER, SCROLL_BAR).
*/
void setRangeValue(SynthContext context, Region id,
double value, double min, double max, double visible) {
int widget = getWidgetType(context.getComponent(), id).ordinal();
nativeSetRangeValue(widget, value, min, max, visible);
}
}
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