Example #1
0
 Point computeSize(GC gc) {
   int width = 0, height = 0;
   if ((style & SWT.SEPARATOR) != 0) {
     if ((parent.style & SWT.HORIZONTAL) != 0) {
       width = getWidth();
       height = DEFAULT_HEIGHT;
     } else {
       width = DEFAULT_WIDTH;
       height = getWidth();
     }
     if (control != null) {
       height = Math.max(height, control.getMinimumHeight());
     }
     return new Point(width, height);
   }
   int[] argList = {
     OS.XmNmarginHeight, 0,
     OS.XmNmarginWidth, 0,
     OS.XmNshadowThickness, 0,
   };
   OS.XtGetValues(handle, argList, argList.length / 2);
   int marginHeight = argList[1], marginWidth = argList[3];
   int shadowThickness = argList[5];
   if ((parent.style & SWT.FLAT) != 0) {
     shadowThickness = Math.min(2, display.buttonShadowThickness);
   }
   if (text.length() != 0 || image != null) {
     int textWidth = 0, textHeight = 0;
     if (text.length() != 0) {
       int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC;
       Point textExtent = gc.textExtent(text, flags);
       textWidth = textExtent.x;
       textHeight = textExtent.y;
     }
     int imageWidth = 0, imageHeight = 0;
     if (image != null) {
       Rectangle rect = image.getBounds();
       imageWidth = rect.width;
       imageHeight = rect.height;
     }
     if ((parent.style & SWT.RIGHT) != 0) {
       width = imageWidth + textWidth;
       height = Math.max(imageHeight, textHeight);
       if (imageWidth != 0 && textWidth != 0) width += 2;
     } else {
       height = imageHeight + textHeight;
       if (imageHeight != 0 && textHeight != 0) height += 2;
       width = Math.max(imageWidth, textWidth);
     }
   } else {
     width = DEFAULT_WIDTH;
     height = DEFAULT_HEIGHT;
   }
   if ((style & SWT.DROP_DOWN) != 0) {
     width += 12;
   }
   if (width != 0) {
     width += (marginWidth + shadowThickness) * 2 + 2;
   } else {
     width = DEFAULT_WIDTH;
   }
   if (height != 0) {
     height += (marginHeight + shadowThickness) * 2 + 2;
   } else {
     height = DEFAULT_HEIGHT;
   }
   return new Point(width, height);
 }
Example #2
0
  int XmNexposureCallback(int w, int client_data, int call_data) {
    if ((style & SWT.SEPARATOR) != 0) return 0;
    int xDisplay = OS.XtDisplay(handle);
    if (xDisplay == 0) return 0;
    int xWindow = OS.XtWindow(handle);
    if (xWindow == 0) return 0;
    int[] argList = {
      OS.XmNcolormap, 0,
      OS.XmNwidth, 0,
      OS.XmNheight, 0,
    };
    OS.XtGetValues(handle, argList, argList.length / 2);
    int width = argList[3], height = argList[5];

    Image currentImage = image;
    boolean enabled = getEnabled();

    if ((parent.style & SWT.FLAT) != 0) {
      boolean hasCursor = hasCursor();

      /* Set the shadow thickness */
      int thickness = 0;
      if (set || (hasCursor && enabled)) {
        thickness = Math.min(2, display.buttonShadowThickness);
      }
      argList = new int[] {OS.XmNshadowThickness, thickness};
      OS.XtSetValues(handle, argList, argList.length / 2);

      /* Determine if hot image should be used */
      if (enabled && hasCursor && hotImage != null) {
        currentImage = hotImage;
      }
    }

    GCData data = new GCData();
    data.device = display;
    data.display = xDisplay;
    data.drawable = xWindow;
    data.font = parent.font;
    data.colormap = argList[1];
    int xGC = OS.XCreateGC(xDisplay, xWindow, 0, null);
    if (xGC == 0) SWT.error(SWT.ERROR_NO_HANDLES);
    GC gc = GC.motif_new(xGC, data);

    XmAnyCallbackStruct cb = new XmAnyCallbackStruct();
    OS.memmove(cb, call_data, XmAnyCallbackStruct.sizeof);
    if (cb.event != 0) {
      XExposeEvent xEvent = new XExposeEvent();
      OS.memmove(xEvent, cb.event, XExposeEvent.sizeof);
      Rectangle rect = new Rectangle(xEvent.x, xEvent.y, xEvent.width, xEvent.height);
      gc.setClipping(rect);
    }

    if (!enabled) {
      currentImage = disabledImage;
      if (currentImage == null && image != null) {
        currentImage = new Image(display, image, SWT.IMAGE_DISABLE);
      }
      Color disabledColor = display.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW);
      gc.setForeground(disabledColor);
    } else {
      gc.setForeground(parent.getForeground());
    }
    gc.setBackground(parent.getBackground());

    int textX = 0, textY = 0, textWidth = 0, textHeight = 0;
    if (text.length() != 0) {
      int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC;
      Point textExtent = gc.textExtent(text, flags);
      textWidth = textExtent.x;
      textHeight = textExtent.y;
    }
    int imageX = 0, imageY = 0, imageWidth = 0, imageHeight = 0;
    if (currentImage != null) {
      Rectangle imageBounds = currentImage.getBounds();
      imageWidth = imageBounds.width;
      imageHeight = imageBounds.height;
    }

    int spacing = 0;
    if (textWidth != 0 && imageWidth != 0) spacing = 2;
    if ((parent.style & SWT.RIGHT) != 0) {
      imageX = (width - imageWidth - textWidth - spacing) / 2;
      imageY = (height - imageHeight) / 2;
      textX = spacing + imageX + imageWidth;
      textY = (height - textHeight) / 2;
    } else {
      imageX = (width - imageWidth) / 2;
      imageY = (height - imageHeight - textHeight - spacing) / 2;
      textX = (width - textWidth) / 2;
      textY = spacing + imageY + imageHeight;
    }

    if ((style & SWT.DROP_DOWN) != 0) {
      textX -= 6;
      imageX -= 6;
    }
    if (textWidth > 0) {
      int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC | SWT.DRAW_TRANSPARENT;
      gc.drawText(text, textX, textY, flags);
    }
    if (imageWidth > 0) gc.drawImage(currentImage, imageX, imageY);
    if ((style & SWT.DROP_DOWN) != 0) {
      int startX = width - 12, startY = (height - 2) / 2;
      int[] arrow = {startX, startY, startX + 3, startY + 3, startX + 6, startY};
      gc.setBackground(parent.getForeground());
      gc.fillPolygon(arrow);
      gc.drawPolygon(arrow);
    }
    gc.dispose();
    OS.XFreeGC(xDisplay, xGC);

    if (!enabled && disabledImage == null) {
      if (currentImage != null) currentImage.dispose();
    }
    return 0;
  }