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package org.eclipse.swt.widgets;
/*
* Licensed Materials - Property of IBM,
* (c) Copyright IBM Corp. 1998, 2001 All Rights Reserved
*/
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.photon.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
public class Label extends Control {
Image image;
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) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
int border = getBorderWidth ();
int width = border * 2, height = border * 2;
if ((style & SWT.SEPARATOR) != 0) {
if ((style & SWT.HORIZONTAL) != 0) {
width += DEFAULT_WIDTH; height += 3;
} else {
width += 3; height += DEFAULT_HEIGHT;
}
if (wHint != SWT.DEFAULT) width = wHint + (border * 2);
if (hHint != SWT.DEFAULT) height = hHint + (border * 2);
return new Point (width, height);
}
PhDim_t dim = new PhDim_t();
if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidget (handle);
OS.PtWidgetPreferredSize(handle, dim);
width = dim.w; height = dim.h;
if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) {
PhRect_t rect = new PhRect_t ();
PhArea_t area = new PhArea_t ();
rect.lr_x = (short) (wHint - 1);
rect.lr_y = (short) (hHint - 1);
OS.PtSetAreaFromWidgetCanvas (handle, rect, area);
if (wHint != SWT.DEFAULT) width = area.size_w;
if (hHint != SWT.DEFAULT) height = area.size_h;
}
return new Point (width, height);
}
void createHandle (int index) {
Display display = getDisplay ();
int parentHandle = parent.handle;
if ((style & SWT.SEPARATOR) != 0) {
int clazz = display.PtSeparator;
int orientation = (style & SWT.HORIZONTAL) != 0 ? OS.Pt_SEP_HORIZONTAL : OS.Pt_SEP_VERTICAL;
int type = OS.Pt_ETCHED_IN;
if ((style & (SWT.SHADOW_OUT)) != 0) type = OS.Pt_ETCHED_OUT;
int [] args = {
OS.Pt_ARG_SEP_FLAGS, orientation, OS.Pt_SEP_VERTICAL | OS.Pt_SEP_HORIZONTAL,
OS.Pt_ARG_SEP_TYPE, type, 0,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
handle = OS.PtCreateWidget (clazz, parentHandle, args.length / 3, args);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
return;
}
int clazz = display.PtLabel;
int alignment = OS.Pt_LEFT;
if ((style & SWT.CENTER) != 0) alignment = OS.Pt_CENTER;
if ((style & SWT.RIGHT) != 0) alignment = OS.Pt_RIGHT;
int [] args = {
OS.Pt_ARG_HORIZONTAL_ALIGNMENT, alignment, 0,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
handle = OS.PtCreateWidget (clazz, parentHandle, args.length / 3, args);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
}
public int getAlignment () {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
if ((style & SWT.SEPARATOR) != 0) return 0;
if ((style & SWT.LEFT) != 0) return SWT.LEFT;
if ((style & SWT.CENTER) != 0) return SWT.CENTER;
if ((style & SWT.RIGHT) != 0) return SWT.RIGHT;
return SWT.LEFT;
}
public Image getImage () {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
return image;
}
String getNameText () {
return getText ();
}
public String getText () {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
if ((style & SWT.SEPARATOR) != 0) return "";
int [] args = {
OS.Pt_ARG_TEXT_STRING, 0, 0,
OS.Pt_ARG_ACCEL_KEY, 0, 0,
};
OS.PtGetResources (handle, args.length / 3, args);
if (args [1] == 0) return "";
int length = OS.strlen (args [1]);
byte [] buffer = new byte [length];
OS.memmove (buffer, args [1], length);
char [] result = Converter.mbcsToWcs (null, buffer);
int count = 0;
int mnemonic = 0;
if (args [4] != 0) {
int length2 = OS.strlen (args [4]);
if (length2 > 0) {
byte [] buffer2 = new byte [length2];
OS.memmove (buffer2, args [4], length2);
char [] result2 = Converter.mbcsToWcs (null, buffer2);
if (result2.length > 0) mnemonic = result2 [0];
}
}
if (mnemonic != 0) count++;
for (int i=0; i<result.length-1; i++)
if (result [i] == Mnemonic) count++;
char [] newResult = result;
if ((count != 0) || (mnemonic != 0)) {
newResult = new char [result.length + count];
int i = 0, j = 0;
while (i < result.length) {
if ((mnemonic != 0) && (result [i] == mnemonic)) {
if (j < newResult.length) newResult [j++] = Mnemonic;
mnemonic = 0;
}
if ((newResult [j++] = result [i++]) == Mnemonic)
if (j < newResult.length) newResult [j++] = Mnemonic;
}
}
return new String (newResult);
}
int processPaint (int damage) {
int clazz = OS.PtLabel ();
if ((style & SWT.SEPARATOR) != 0) clazz = OS.PtSeparator ();
OS.PtSuperClassDraw (clazz, handle, damage);
return super.processPaint (damage);
}
void releaseWidget () {
super.releaseWidget ();
image = null;
}
public void setAlignment (int alignment) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
if ((style & SWT.SEPARATOR) != 0) return;
if ((alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER)) == 0) return;
style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER);
style |= alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER);
int [] args = {OS.Pt_ARG_HORIZONTAL_ALIGNMENT, OS.Pt_LEFT, 0};
if ((style & SWT.CENTER) != 0) args [1] = OS.Pt_CENTER;
if ((style & SWT.RIGHT) != 0) args [1] = OS.Pt_RIGHT;
OS.PtSetResources (handle, args.length / 3, args);
}
public boolean setFocus () {
return false;
}
public void setImage (Image image) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
if ((style & SWT.SEPARATOR) != 0) return;
this.image = image;
int imageHandle = 0;
if (image != null) imageHandle = copyPhImage (image.handle);
int [] args = {
OS.Pt_ARG_LABEL_IMAGE, imageHandle, 0,
OS.Pt_ARG_LABEL_TYPE, OS.Pt_IMAGE, 0
};
OS.PtSetResources (handle, args.length / 3, args);
if (imageHandle != 0) OS.free (imageHandle);
}
public void setText (String string) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
if ((style & SWT.SEPARATOR) != 0) return;
char [] text = new char [string.length ()];
string.getChars (0, text.length, text, 0);
int i=0, j=0;
char mnemonic=0;
while (i < text.length) {
if ((text [j++] = text [i++]) == Mnemonic) {
if (i == text.length) {continue;}
if (text [i] == Mnemonic) {i++; continue;}
if (mnemonic == 0) mnemonic = text [i];
j--;
}
}
while (j < text.length) text [j++] = 0;
byte [] buffer = Converter.wcsToMbcs (null, text, true);
int ptr = OS.malloc (buffer.length);
OS.memmove (ptr, buffer, buffer.length);
int ptr2 = 0;
if (mnemonic != 0) {
byte [] buffer2 = Converter.wcsToMbcs (null, new char []{mnemonic}, true);
ptr2 = OS.malloc (buffer2.length);
OS.memmove (ptr2, buffer2, buffer2.length);
}
int [] args = {
OS.Pt_ARG_TEXT_STRING, ptr, 0,
OS.Pt_ARG_LABEL_TYPE, OS.Pt_Z_STRING, 0,
OS.Pt_ARG_ACCEL_KEY, ptr2, 0,
};
OS.PtSetResources (handle, args.length / 3, args);
OS.free (ptr);
OS.free (ptr2);
}
}
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