package org.eclipse.swt.widgets; | |
/* | |
* (c) Copyright IBM Corp. 2000, 2001. | |
* All Rights Reserved | |
*/ | |
import org.eclipse.swt.internal.photon.*; | |
import org.eclipse.swt.*; | |
import org.eclipse.swt.graphics.*; | |
import org.eclipse.swt.events.*; | |
public class Slider extends Control { | |
public Slider (Composite parent, int style) { | |
super (parent, checkStyle (style)); | |
} | |
static int checkStyle (int style) { | |
return checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0); | |
} | |
public void addSelectionListener (SelectionListener listener) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); | |
TypedListener typedListener = new TypedListener(listener); | |
addListener (SWT.Selection,typedListener); | |
addListener (SWT.DefaultSelection,typedListener); | |
} | |
public Point computeSize (int wHint, int hHint, boolean changed) { | |
//NOT DONE - hard coding value to be the same as list's scrollbars | |
int width = 17, height = 100; | |
if ((style & SWT.HORIZONTAL) != 0) { | |
width = 100; height = 17; | |
} | |
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) { | |
state |= HANDLE; | |
Display display = getDisplay (); | |
int clazz = display.PtScrollbar; | |
int parentHandle = parent.handle; | |
int [] args = { | |
OS.Pt_ARG_MAXIMUM, 100, 0, | |
OS.Pt_ARG_PAGE_INCREMENT, 10, 0, | |
OS.Pt_ARG_SLIDER_SIZE, 10, 0, | |
OS.Pt_ARG_ORIENTATION, (style & SWT.HORIZONTAL) != 0 ? OS.Pt_HORIZONTAL : OS.Pt_VERTICAL, 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 getIncrement () { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_INCREMENT, 0, 0}; | |
OS.PtGetResources (handle, args.length / 3, args); | |
return args [1]; | |
} | |
public int getMinimum () { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_MINIMUM, 0, 0}; | |
OS.PtGetResources (handle, args.length / 3, args); | |
return args [1]; | |
} | |
public int getMaximum () { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_MAXIMUM, 0, 0}; | |
OS.PtGetResources (handle, args.length / 3, args); | |
return args [1]; | |
} | |
public int getPageIncrement () { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_PAGE_INCREMENT, 0, 0}; | |
OS.PtGetResources (handle, args.length / 3, args); | |
return args [1]; | |
} | |
public int getSelection () { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_SCROLL_POSITION, 0, 0}; | |
OS.PtGetResources (handle, args.length / 3, args); | |
return args [1]; | |
} | |
public Point getSize () { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_WIDTH, 0, 0, OS.Pt_ARG_HEIGHT, 0, 0}; | |
OS.PtGetResources (handle, args.length / 3, args); | |
return new Point (args [1], args [4]); | |
} | |
public int getThumb () { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_SLIDER_SIZE, 0, 0}; | |
OS.PtGetResources (handle, args.length / 3, args); | |
return args [1]; | |
} | |
void hookEvents () { | |
int windowProc = getDisplay ().windowProc; | |
OS.PtAddCallback (handle, OS.Pt_CB_SCROLL_MOVE, windowProc, SWT.Selection); | |
} | |
int processPaint (int damage) { | |
OS.PtSuperClassDraw (OS.PtScrollbar (), handle, damage); | |
return super.processPaint (damage); | |
} | |
int processSelection (int info) { | |
if (info == 0) return OS.Pt_CONTINUE; | |
PtCallbackInfo_t cbinfo = new PtCallbackInfo_t (); | |
OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof); | |
if (cbinfo.cbdata == 0) return OS.Pt_CONTINUE; | |
PtScrollbarCallback_t cb = new PtScrollbarCallback_t (); | |
OS.memmove (cb, cbinfo.cbdata, PtScrollbarCallback_t.sizeof); | |
Event event = new Event (); | |
switch (cb.action) { | |
case OS.Pt_SCROLL_DRAGGED: | |
event.detail = SWT.DRAG; | |
break; | |
case OS.Pt_SCROLL_TO_MIN: | |
event.detail = SWT.HOME; | |
break; | |
case OS.Pt_SCROLL_TO_MAX: | |
event.detail = SWT.END; | |
break; | |
case OS.Pt_SCROLL_INCREMENT: | |
event.detail = SWT.ARROW_DOWN; | |
break; | |
case OS.Pt_SCROLL_DECREMENT : | |
event.detail = SWT.ARROW_UP; | |
break; | |
case OS.Pt_SCROLL_PAGE_DECREMENT: | |
event.detail = SWT.PAGE_UP; | |
break; | |
case OS.Pt_SCROLL_PAGE_INCREMENT: | |
event.detail = SWT.PAGE_DOWN; | |
break; | |
} | |
sendEvent(SWT.Selection, event); | |
return OS.Pt_CONTINUE; | |
} | |
public void removeSelectionListener (SelectionListener listener) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); | |
if (eventTable == null) return; | |
eventTable.unhook (SWT.Selection, listener); | |
eventTable.unhook (SWT.DefaultSelection,listener); | |
} | |
public void setIncrement (int value) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_INCREMENT, value, 0}; | |
OS.PtSetResources (handle, args.length / 3, args); | |
} | |
public void setMaximum (int value) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_MAXIMUM, value - 1, 0}; | |
OS.PtSetResources (handle, args.length / 3, args); | |
} | |
public void setMinimum (int value) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_MINIMUM, value, 0}; | |
OS.PtSetResources (handle, args.length / 3, args); | |
} | |
public void setPageIncrement (int value) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_PAGE_INCREMENT, value, 0}; | |
OS.PtSetResources (handle, args.length / 3, args); | |
} | |
public void setSelection (int value) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_SCROLL_POSITION, value, 0}; | |
OS.PtSetResources (handle, args.length / 3, args); | |
} | |
public void setThumb (int value) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
int [] args = {OS.Pt_ARG_SLIDER_SIZE, value, 0}; | |
OS.PtSetResources (handle, args.length / 3, args); | |
} | |
public void setValues (int selection, int minimum, int maximum, int thumb, int increment, int pageIncrement) { | |
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); | |
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); | |
if (selection < 0) return; | |
if (minimum < 0) return; | |
if (maximum < 0) return; | |
if (thumb < 1) return; | |
if (maximum - minimum - thumb < 0) return; | |
if (increment < 1) return; | |
if (pageIncrement < 1) return; | |
int [] args = { | |
OS.Pt_ARG_SCROLL_POSITION, selection, 0, | |
OS.Pt_ARG_INCREMENT, increment, 0, | |
OS.Pt_ARG_PAGE_INCREMENT, pageIncrement, 0, | |
OS.Pt_ARG_SLIDER_SIZE, thumb, 0, | |
OS.Pt_ARG_MINIMUM, minimum, 0, | |
OS.Pt_ARG_MAXIMUM, maximum - 1, 0, | |
}; | |
OS.PtSetResources (handle, args.length / 3, args); | |
} | |
} |