void updateImages(boolean enabled) {
if ((style & SWT.SEPARATOR) != 0) return;
long /*int*/ hwnd = parent.handle;
TBBUTTONINFO info = new TBBUTTONINFO();
info.cbSize = TBBUTTONINFO.sizeof;
info.dwMask = OS.TBIF_IMAGE;
OS.SendMessage(hwnd, OS.TB_GETBUTTONINFO, id, info);
if (info.iImage == OS.I_IMAGENONE && image == null) return;
ImageList imageList = parent.getImageList();
ImageList hotImageList = parent.getHotImageList();
ImageList disabledImageList = parent.getDisabledImageList();
if (info.iImage == OS.I_IMAGENONE) {
Rectangle bounds = image.getBounds();
int listStyle = parent.style & SWT.RIGHT_TO_LEFT;
if (imageList == null) {
imageList = display.getImageListToolBar(listStyle, bounds.width, bounds.height);
}
if (disabledImageList == null) {
disabledImageList =
display.getImageListToolBarDisabled(listStyle, bounds.width, bounds.height);
}
if (hotImageList == null) {
hotImageList = display.getImageListToolBarHot(listStyle, bounds.width, bounds.height);
}
Image disabled = disabledImage;
if (disabledImage == null) {
if (disabledImage2 != null) disabledImage2.dispose();
disabledImage2 = null;
disabled = image;
if (!enabled) {
disabled = disabledImage2 = new Image(display, image, SWT.IMAGE_DISABLE);
}
}
/*
* Bug in Windows. When a tool item with the style
* BTNS_CHECK or BTNS_CHECKGROUP is selected and then
* disabled, the item does not draw using the disabled
* image. The fix is to assign the disabled image in
* all image lists.
*/
Image image2 = image, hot = hotImage;
if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
if (!enabled) image2 = hot = disabled;
}
info.iImage = imageList.add(image2);
disabledImageList.add(disabled);
hotImageList.add(hot != null ? hot : image2);
parent.setImageList(imageList);
parent.setDisabledImageList(disabledImageList);
parent.setHotImageList(hotImageList);
} else {
Image disabled = null;
if (disabledImageList != null) {
if (image != null) {
if (disabledImage2 != null) disabledImage2.dispose();
disabledImage2 = null;
disabled = disabledImage;
if (disabledImage == null) {
disabled = image;
if (!enabled) {
disabled = disabledImage2 = new Image(display, image, SWT.IMAGE_DISABLE);
}
}
}
disabledImageList.put(info.iImage, disabled);
}
/*
* Bug in Windows. When a tool item with the style
* BTNS_CHECK or BTNS_CHECKGROUP is selected and then
* disabled, the item does not draw using the disabled
* image. The fix is to use the disabled image in all
* image lists.
*/
Image image2 = image, hot = hotImage;
if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
if (!enabled) image2 = hot = disabled;
}
if (imageList != null) imageList.put(info.iImage, image2);
if (hotImageList != null) {
hotImageList.put(info.iImage, hot != null ? hot : image2);
}
if (image == null) info.iImage = OS.I_IMAGENONE;
}
/*
* Bug in Windows. If the width of an item has already been
* calculated, the tool bar control will not recalculate it to
* include the space for the image. The fix is to set the width
* to zero, forcing the control recalculate the width for the item.
*/
info.dwMask |= OS.TBIF_SIZE;
info.cx = 0;
OS.SendMessage(hwnd, OS.TB_SETBUTTONINFO, id, info);
long /*int*/ hFont = OS.SendMessage(hwnd, OS.WM_GETFONT, 0, 0);
OS.SendMessage(hwnd, OS.WM_SETFONT, hFont, 0);
parent.layoutItems();
}
/**
* Sets the control that is used to fill the bounds of the item when the item is a <code>SEPARATOR
* </code>.
*
* @param control the new control
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the control has been disposed
* <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setControl(Control control) {
checkWidget();
if (control != null) {
if (control.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if (control.parent != parent) error(SWT.ERROR_INVALID_PARENT);
}
if ((style & SWT.SEPARATOR) == 0) return;
this.control = control;
/*
* Feature in Windows. When a tool bar wraps, tool items
* with the style BTNS_SEP are used as wrap points. This
* means that controls that are placed on top of separator
* items are not positioned properly. Also, vertical tool
* bars are implemented using TB_SETROWS to set the number
* of rows. When a control is placed on top of a separator,
* the height of the separator does not grow. The fix in
* both cases is to change the tool item style from BTNS_SEP
* to BTNS_BUTTON, causing the item to wrap like a tool item
* button. The new tool item button is disabled to avoid key
* traversal and the image is set to I_IMAGENONE to avoid
* getting the first image from the image list.
*/
if ((parent.style & (SWT.WRAP | SWT.VERTICAL)) != 0) {
boolean changed = false;
long /*int*/ hwnd = parent.handle;
TBBUTTONINFO info = new TBBUTTONINFO();
info.cbSize = TBBUTTONINFO.sizeof;
info.dwMask = OS.TBIF_STYLE | OS.TBIF_STATE;
OS.SendMessage(hwnd, OS.TB_GETBUTTONINFO, id, info);
if (control == null) {
if ((info.fsStyle & OS.BTNS_SEP) == 0) {
changed = true;
info.fsStyle &= ~(OS.BTNS_BUTTON | OS.BTNS_SHOWTEXT);
info.fsStyle |= OS.BTNS_SEP;
if ((state & DISABLED) != 0) {
info.fsState &= ~OS.TBSTATE_ENABLED;
} else {
info.fsState |= OS.TBSTATE_ENABLED;
}
}
} else {
if ((info.fsStyle & OS.BTNS_SEP) != 0) {
changed = true;
info.fsStyle &= ~OS.BTNS_SEP;
info.fsStyle |= OS.BTNS_BUTTON | OS.BTNS_SHOWTEXT;
info.fsState &= ~OS.TBSTATE_ENABLED;
info.dwMask |= OS.TBIF_IMAGE;
info.iImage = OS.I_IMAGENONE;
}
}
if (changed) {
OS.SendMessage(hwnd, OS.TB_SETBUTTONINFO, id, info);
/*
* Bug in Windows. When TB_SETBUTTONINFO changes the
* style of a tool item from BTNS_SEP to BTNS_BUTTON
* and the tool bar is wrapped, the tool bar does not
* redraw properly. Windows uses separator items as
* wrap points and sometimes draws etching above or
* below and entire row. The fix is to redraw the
* tool bar.
*/
if (OS.SendMessage(hwnd, OS.TB_GETROWS, 0, 0) > 1) {
OS.InvalidateRect(hwnd, null, true);
}
}
}
resizeControl();
}