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ToolbarItem.java
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ToolbarItem.java
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/*******************************************************************************
* Copyright (c) 2010, Lukasz Milewski and others. All rights reserved. This
* program and the accompanying materials are made available under the terms of
* the Eclipse Public License v1.0 which accompanies this distribution, and is
* available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors: Lukasz Milewski <lukasz.milewski@gmail.com> - Initial API and
* implementation
*******************************************************************************/
package org.eclipse.nebula.widgets.nebulatoolbar;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Pattern;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Widget;
/**
* Default ToolbarItem implementation. Draw item using two different styles,
* Vista and 7.
*
* @author Lukasz Milewski <lukasz.milewski@gmail.com>
* @since 25 May 2009
*/
public class ToolbarItem extends Item
{
protected SelectionListener selectionListener;
protected boolean hovered = false;
protected Image image;
protected Menu menu;
private NebulaToolbar parent;
protected boolean pushedDown = false;
protected boolean selected = false;
protected int style;
protected String text = "";
protected String tooltip = "";
protected int width;
/**
* Parameterized constructor with all fields.
*
* @param parent Parent widget, should be NebulaToolbar
* @param action Selection listener
* @param text Text
* @param tooltip Tooltip text
* @param image Image
* @param style Style of item
*/
public ToolbarItem(Widget parent, SelectionListener action, String text, String tooltip, Image image, int style)
{
this(parent, style);
this.selectionListener = action;
this.text = text;
this.tooltip = tooltip;
this.image = image;
this.style = style;
((NebulaToolbar) parent).addItem(this);
}
/**
* Parameterized constructor.
*
* @param parent Parent widget, should be NebulaToolbar
* @param style Style of item
*/
public ToolbarItem(Widget parent, int style)
{
super(parent, style);
this.parent = (NebulaToolbar) parent;
this.style = style;
((NebulaToolbar) parent).addItem(this);
}
/**
* Calculate size of item.
*/
public void calculateSize()
{
Image calcSizeImage = new Image(Display.getDefault(), 1, 1);
GC gc = new GC(calcSizeImage);
gc.setAdvanced(true);
gc.setAntialias(SWT.OFF);
gc.setFont(parent.getFont());
width = 10;
if (image != null)
{
width += image.getImageData().width;
}
if (text.length() > 0)
{
width += getTextWidth(gc, text) + 9;
}
gc.dispose();
calcSizeImage.dispose();
}
/**
* Returns context menu.
*
* @return Menu
*/
public Menu getContextMenu()
{
return menu;
}
/**
* Returns item image.
*
* @return Image
*/
public Image getImage()
{
return image;
}
/**
* Returns SelectionListener.
* TODO should be replaced with array of listeners
*
* @return SelectionListener
*/
public SelectionListener getSelectionListener()
{
return selectionListener;
}
/**
* Returns style of item.
*
* @return Style
*/
public int getStyle()
{
return style;
}
/**
* Returns text of item.
*
* @return Text
*/
public String getText()
{
return text;
}
/**
* Returns text width.
*
* @param text Text
* @return Width
*/
private int getTextWidth(GC gc, String text)
{
if (text.endsWith(" "))
{
return gc.textExtent(text).x;
}
return gc.textExtent(text).x;
}
/**
* Returns tooltip text of item.
*
* @return Tooltip text
*/
public String getTooltip()
{
return tooltip;
}
/**
* Returns width of item.
*
* @return Width
*/
public int getWidth()
{
return width;
}
/**
* Returns hovered state of item.
*
* @return Hovered state
*/
public boolean isHovered()
{
return hovered;
}
/**
* Returns pushed down state of item.
*
* @return Pushed down state
*/
public boolean isPushedDown()
{
return pushedDown;
}
/**
* Returns selected state of item.
*
* @return Selected state
*/
public boolean isSelected()
{
return selected;
}
/**
* Returns visibility of item.
*
* @return Visibility
*/
public boolean isVisible()
{
return true;
}
/**
* Paint item on graphical canvas.
*
* @param gc GC
* @param x Left position
* @param y Top position
*/
public void paint(GC gc, int x, int y)
{
if (parent.getMode() == NebulaToolbar.MODE_VISTA)
{
paintVista(gc, x, y);
}
else
{
paintSeven(gc, x, y);
}
}
/**
* Paint item on graphical canvas using Windows 7 style.
*
* @param gc GC
* @param x Left position
* @param y Top position
*/
private void paintSeven(GC gc, int x, int y)
{
int imageX = x + 5;
int imageY = y + 4;
int imageWidth = 0;
if (image != null)
{
imageWidth = image.getImageData().width;
}
if (pushedDown)
{
imageX++;
imageY++;
}
int textX = imageX + imageWidth + 5;
int textY = imageY;
Color defaultForegroundColor = gc.getForeground();
Color darkBorder = new Color(gc.getDevice(), 179, 196, 216);
Color lightBorder = new Color(gc.getDevice(), 252, 253, 254);
if (pushedDown)
{
darkBorder.dispose();
darkBorder = new Color(gc.getDevice(), 181, 197, 217);
}
if (pushedDown || hovered || selected)
{
gc.setAntialias(SWT.ON);
gc.setForeground(darkBorder);
gc.drawRoundRectangle(x, y, width - 1, 23, 4, 4);
if (!pushedDown)
{
gc.setForeground(lightBorder);
gc.drawRoundRectangle(x + 1, y + 1, width - 3 + (pushedDown ? 1 : 0), 21 + (pushedDown ? 1 : 0), 4, 4);
}
if (pushedDown || hovered)
{
Color c1 = null;
Color c2 = null;
Color c3 = null;
Color c4 = null;
if (pushedDown)
{
c1 = new Color(gc.getDevice(), 201, 212, 228);
c2 = new Color(gc.getDevice(), 216, 228, 241);
c3 = new Color(gc.getDevice(), 207, 219, 236);
c4 = new Color(gc.getDevice(), 207, 220, 237);
}
else
{
c1 = new Color(gc.getDevice(), 248, 251, 254);
c2 = new Color(gc.getDevice(), 237, 242, 250);
c3 = new Color(gc.getDevice(), 215, 228, 244);
c4 = new Color(gc.getDevice(), 193, 210, 232);
}
int middle = y + 12;
int pattLeft = x + 1 + (!pushedDown ? 1 : 0);
int pattTop = y + 1 + (!pushedDown ? 1 : 0);
int pattWidth = width - (2 + (!pushedDown ? 2 : 0));
int pattHeight = y + 22 + (pushedDown ? 1 : 0);
Pattern patternTop = new Pattern(gc.getDevice(), 0, pattTop, 0, middle, c1, c2);
Pattern patternBtm = new Pattern(gc.getDevice(), 0, middle, 0, pattHeight, c3, c4);
gc.setBackgroundPattern(patternTop);
gc.fillRoundRectangle(pattLeft, pattTop, pattWidth, middle, 4, 4);
gc.setBackgroundPattern(patternBtm);
gc.fillRoundRectangle(pattLeft, middle, pattWidth, pattHeight - middle, 4, 4);
gc.fillRectangle(pattLeft, middle, pattWidth, 5);
gc.setBackgroundPattern(null);
patternTop.dispose();
patternBtm.dispose();
c1.dispose();
c2.dispose();
c3.dispose();
c4.dispose();
}
}
if (image != null)
{
gc.drawImage(image, imageX, imageY);
}
if (text.length() > 0)
{
Font systemFont = null;
Font defaultFont = gc.getFont();
boolean adv = gc.getAdvanced();
if (style == NebulaToolbar.CHEVRON)
{
systemFont = new Font(gc.getDevice(), "System", 8, 0); // TODO change that
gc.setFont(systemFont);
gc.setAdvanced(false);
textX -= 1;
textY -= 2;
}
gc.setForeground(defaultForegroundColor); // TODO change that
gc.drawText(text, textX, textY, true);
if (systemFont != null)
{
gc.setAdvanced(adv);
gc.setFont(defaultFont);
systemFont.dispose();
}
}
gc.setForeground(defaultForegroundColor);
darkBorder.dispose();
lightBorder.dispose();
}
/**
* Paint item on graphical canvas using Windows Vista style.
*
* @param gc GC
* @param x Left position
* @param y Top position
*/
private void paintVista(GC gc, int x, int y)
{
Display display = parent.getDisplay();
int imageX = x + 5;
int imageY = y + 4;
int imageWidth = 0;
if (image != null)
{
imageWidth = image.getImageData().width;
}
if (pushedDown)
{
imageX++;
imageY++;
}
int textX = imageX + imageWidth + 5;
int textY = imageY;
int alphaTop = 75;
int alphaBottom = 5;
int borderAlphaDark = 0;
int borderAlphaLight = 0;
Color defaultForegroundColor = gc.getForeground();
Color lightBorder = display.getSystemColor(SWT.COLOR_WHITE);
if (pushedDown)
{
borderAlphaDark = 150;
borderAlphaLight = 75;
lightBorder = display.getSystemColor(SWT.COLOR_BLACK);
alphaTop = 75;
}
else if (hovered)
{
borderAlphaDark = 100;
borderAlphaLight = 150;
}
else if (selected)
{
borderAlphaDark = 65;
borderAlphaLight = 105;
}
if (pushedDown || hovered || selected)
{
gc.setAntialias(SWT.ON);
gc.setAlpha(borderAlphaDark);
gc.setForeground(display.getSystemColor(SWT.COLOR_BLACK));
gc.drawRoundRectangle(x, y, width - 1, 23, 4, 4);
gc.setAlpha(borderAlphaLight);
gc.setForeground(lightBorder);
gc.drawRoundRectangle(x + 1, y + 1, width - 3 + (pushedDown ? 1 : 0), 21 + (pushedDown ? 1 : 0), 4, 4);
gc.setAlpha(255);
if (pushedDown || hovered)
{
int pattHeight = y + 22;
if (pushedDown)
{
pattHeight = y + 16;
}
Pattern pattern = new Pattern(gc.getDevice(), 0, y + 2, 0, pattHeight, lightBorder, alphaTop, lightBorder, alphaBottom);
gc.setBackgroundPattern(pattern);
gc.fillRoundRectangle(x + 2, y + 2, width - 4 + (pushedDown ? 1 : 0), pattHeight - 5, 4, 4);
gc.setBackgroundPattern(null);
pattern.dispose();
}
}
if (image != null)
{
gc.drawImage(image, imageX, imageY);
}
if (text.length() > 0)
{
Font systemFont = null;
Font defaultFont = gc.getFont();
if (style == NebulaToolbar.CHEVRON)
{
systemFont = new Font(gc.getDevice(), "System", 8, 0); // TODO change that
gc.setFont(systemFont);
textX -= 1;
textY -= 2;
}
gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
gc.drawText(text, textX, textY, true);
if (systemFont != null)
{
gc.setFont(defaultFont);
systemFont.dispose();
}
}
gc.setForeground(defaultForegroundColor);
}
/**
* Set SelectionListener
* TODO should be replaced with array of listeners
*
* @param selectionListener SelectionListener
*/
public void setSelectionListener(SelectionListener selectionListener)
{
this.selectionListener = selectionListener;
}
/**
* Sets context menu.
*
* @param menu New context menu
*/
public void setContextMenu(Menu menu)
{
this.menu = menu;
}
/**
* Sets hovered state of item.
*
* @param hovered New hovered state
*/
public void setHovered(boolean hovered)
{
this.hovered = hovered;
}
/**
* Sets image.
*
* @param image New image
*/
public void setImage(Image image)
{
this.image = image;
calculateSize();
}
/**
* Sets pushed down state of item.
*
* @param pushedDown New pushed down state
*/
public void setPushedDown(boolean pushedDown)
{
this.pushedDown = pushedDown;
}
/**
* Sets selected state of item.
*
* @param selected New selected state
*/
public void setSelected(boolean selected)
{
this.selected = selected;
}
/**
* Sets style of item.
*
* @param style New style
*/
public void setStyle(int style)
{
this.style = style;
}
/**
* Sets text.
*
* @param text New text
*/
public void setText(String text)
{
this.text = text;
calculateSize();
}
/**
* Sets tooltip text of item.
*
* @param tooltip New tooltip text
*/
public void setTooltip(String tooltip)
{
this.tooltip = tooltip;
}
/**
* Sets visibility of item.
* TODO visibility state is not currently handled.
*
* @param visible New visibility
*/
public void setVisible(boolean visible)
{
// TODO Should and will be implemented along JFace stuff
}
}