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package org.eclipse.swt.widgets;
/*
* Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
* This file is made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*/
import org.eclipse.swt.internal.carbon.OS;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
public class Label extends Control {
String text = "";
Image image;
boolean isImage;
public Label (Composite parent, int style) {
super (parent, checkStyle (style));
}
static int checkStyle (int style) {
if ((style & SWT.SEPARATOR) != 0) return style;
return checkBits (style, SWT.LEFT, SWT.CENTER, SWT.RIGHT, 0, 0, 0);
}
public Point computeSize (int wHint, int hHint, boolean changed) {
checkWidget();
int width = 0, height = 0;
if ((style & SWT.SEPARATOR) != 0) {
if ((style & SWT.HORIZONTAL) != 0) {
width = DEFAULT_WIDTH;
height = 3;
} else {
width = 3;
height = DEFAULT_HEIGHT;
}
} else {
if (isImage && image != null) {
Rectangle r = image.getBounds();
width = r.width;
height = r.height;
} else {
int [] ptr = new int [1];
int [] actualSize = new int [1];
OS.GetControlData (handle, (short)0 , OS.kControlStaticTextCFStringTag, 4, ptr, actualSize);
if (ptr [0] != 0) {
org.eclipse.swt.internal.carbon.Point bounds = new org.eclipse.swt.internal.carbon.Point ();
short [] baseLine = new short [1];
boolean wrap = false;
if ((style & SWT.WRAP) != 0 && wHint != SWT.DEFAULT) {
wrap = true;
bounds.h = (short) wHint;
}
// NEEDS work - only works for default font
OS.GetThemeTextDimensions (ptr [0], (short)OS.kThemeSystemFont, OS.kThemeStateActive, wrap, bounds, baseLine);
width = bounds.h;
height = bounds.v;
OS.CFRelease (ptr [0]);
} else {
width = DEFAULT_WIDTH;
height = DEFAULT_HEIGHT;
}
}
}
if (wHint != SWT.DEFAULT) width = wHint;
if (hHint != SWT.DEFAULT) height = hHint;
return new Point (width, height);
}
void createHandle () {
state |= GRAB;
int [] outControl = new int [1];
int window = OS.GetControlOwner (parent.handle);
if ((style & SWT.SEPARATOR) != 0) {
OS.CreateSeparatorControl (window, null, outControl);
} else {
OS.CreateStaticTextControl (window, null, 0, null, outControl);
}
if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES);
handle = outControl [0];
}
void drawBackground (int control) {
if ((style & SWT.SEPARATOR) != 0) {
drawBackground (control, background);
}
}
void drawWidget (int control, int damageRgn, int visibleRgn, int theEvent) {
if (isImage && image != null) {
GCData data = new GCData ();
data.paintEvent = theEvent;
data.visibleRgn = visibleRgn;
GC gc = GC.carbon_new (this, data);
gc.drawImage (image, 0, 0);
gc.dispose ();
}
super.drawWidget (control, damageRgn, visibleRgn, theEvent);
}
public int getAlignment () {
checkWidget();
if ((style & SWT.SEPARATOR) != 0) return SWT.LEFT;
if ((style & SWT.CENTER) != 0) return SWT.CENTER;
if ((style & SWT.RIGHT) != 0) return SWT.RIGHT;
return SWT.LEFT;
}
public int getBorderWidth () {
checkWidget();
return (style & SWT.BORDER) != 0 ? 1 : 0;
}
public Image getImage () {
checkWidget();
return image;
}
String getNameText () {
return getText ();
}
public String getText () {
checkWidget();
if ((style & SWT.SEPARATOR) != 0) return "";
return text;
}
public void setAlignment (int alignment) {
checkWidget();
if ((style & SWT.SEPARATOR) != 0) return;
}
public void setImage (Image image) {
checkWidget();
if ((style & SWT.SEPARATOR) != 0) return;
this.image = image;
isImage = true;
redraw ();
}
public void setText (String string) {
checkWidget();
if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
if ((style & SWT.SEPARATOR) != 0) return;
isImage = false;
text = string;
char [] buffer = new char [text.length ()];
text.getChars (0, buffer.length, buffer, 0);
int i=0, j=0;
while (i < buffer.length) {
if ((buffer [j++] = buffer [i++]) == Mnemonic) {
if (i == buffer.length) {continue;}
if (buffer [i] == Mnemonic) {i++; continue;}
j--;
}
}
int ptr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, j);
if (ptr == 0) error (SWT.ERROR_CANNOT_SET_TEXT);
OS.SetControlData (handle, 0 , OS.kControlStaticTextCFStringTag, 4, new int[]{ptr});
OS.CFRelease (ptr);
redraw ();
}
}
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