package org.eclipse.swt.widgets; | |
/* | |
* (c) Copyright IBM Corp. 2000, 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 /*final*/ class Group extends Composite { | |
public Group (Composite parent, int style) { | |
super (parent, checkStyle (style)); | |
} | |
static int checkStyle (int style) { | |
/* | |
* Even though it is legal to create this widget | |
* with scroll bars, they serve no useful purpose | |
* because they do not automatically scroll the | |
* widget's client area. The fix is to clear | |
* the SWT style. | |
*/ | |
return style & ~(SWT.H_SCROLL | SWT.V_SCROLL); | |
} | |
public Point computeSize (int wHint, int hHint, boolean changed) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
Point titleSize = getTitleSize(); | |
Point size; | |
if (layout != null) { | |
size = layout.computeSize (this, wHint, hHint, changed); | |
} else { | |
size = minimumSize (); | |
} | |
int width = size.x; int height = size.y; | |
if (width == 0) width = DEFAULT_WIDTH; | |
if (height == 0) height = DEFAULT_HEIGHT; | |
if (wHint != SWT.DEFAULT) width = wHint; | |
if (hHint != SWT.DEFAULT) height = hHint; | |
Rectangle trim = computeTrim (0, 0, width, height); | |
width = Math.max (trim.width, titleSize.x + 6); | |
height = trim.height + titleSize.y; | |
return new Point (width, height); | |
} | |
protected void checkSubclass () { | |
if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); | |
} | |
void createHandle (int index) { | |
state |= HANDLE; | |
Display display = getDisplay (); | |
int clazz = display.PtPane; | |
int parentHandle = parent.handle; | |
int [] args = { | |
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 String getText () { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_TITLE, 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 [] unicode = Converter.mbcsToWcs (null, buffer); | |
return new String (unicode); | |
} | |
Point getTitleSize() { | |
int width = 0, height = 0; | |
int [] args = { | |
OS.Pt_ARG_TITLE, 0, 0, | |
OS.Pt_ARG_TITLE_FONT, 0, 0, | |
OS.Pt_ARG_CONTAINER_FLAGS, 0, 0, | |
}; | |
OS.PtGetResources (handle, args.length / 3, args); | |
if ((OS.Pt_ARG_CONTAINER_FLAGS & OS.Pt_SHOW_TITLE) != 0) { | |
PhRect_t rect = new PhRect_t(); | |
if (args [1] != 0) { | |
int length = OS.strlen (args [1]); | |
OS.PfExtentText(rect, null, args [4], args [1], length); | |
} | |
int inset = 4; | |
width = inset + rect.lr_x - rect.ul_x + 1; | |
height = inset + rect.lr_y - rect.ul_y + 1; | |
} | |
return new Point(width, height); | |
} | |
int processPaint (int damage) { | |
OS.PtSuperClassDraw (OS.PtPane (), handle, damage); | |
sendPaintEvent (damage); | |
return OS.Pt_CONTINUE; | |
} | |
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); | |
int flags = OS.Pt_SHOW_TITLE | OS.Pt_ETCH_TITLE_AREA | OS.Pt_GRADIENT_TITLE_AREA; | |
byte [] buffer = Converter.wcsToMbcs (null, string, true); | |
int ptr = OS.malloc (buffer.length); | |
OS.memmove (ptr, buffer, buffer.length); | |
int [] args = { | |
OS.Pt_ARG_TITLE, ptr, 0, | |
OS.Pt_ARG_CONTAINER_FLAGS, string.length () == 0 ? 0 : flags, flags, | |
}; | |
OS.PtSetResources (handle, args.length / 3, args); | |
OS.free (ptr); | |
} | |
} |