Пример #1
0
 /**
  * Sets the receiver's text.
  *
  * <p>The string can contain both regular text and hyperlinks. A hyperlink is delimited by an
  * anchor tag, &lt;A&gt; and &lt;/A&gt;. Within an anchor, a single HREF attribute is supported.
  * When a hyperlink is selected, the text field of the selection event contains either the text of
  * the hyperlink or the value of its HREF, if one was specified. In the rare case of identical
  * hyperlinks within the same string, the HREF attribute can be used to distinguish between them.
  * The string may include the mnemonic character and line delimiters. The only delimiter the HREF
  * attribute supports is the quotation mark (").
  *
  * <p>Mnemonics are indicated by an '&amp;' that causes the next character to be the mnemonic. The
  * receiver can have a mnemonic in the text preceding each link. When the user presses a key
  * sequence that matches the mnemonic, focus is assigned to the link that follows the text.
  * Mnemonics in links and in the trailing text are ignored. On most platforms, the mnemonic
  * appears underlined but may be emphasised in a platform specific manner. The mnemonic indicator
  * character '&amp;' can be escaped by doubling it in the string, causing a single '&amp;' to be
  * displayed.
  *
  * @param string the new text
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the text is null
  *     </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 setText(String string) {
   checkWidget();
   if (string == null) error(SWT.ERROR_NULL_ARGUMENT);
   if (string.equals(text)) return;
   text = string;
   layout.setText(parse(string));
   focusIndex = offsets.length > 0 ? 0 : -1;
   selection.x = selection.y = -1;
   boolean enabled = (state & DISABLED) == 0;
   TextStyle linkStyle = new TextStyle(null, enabled ? linkColor : disabledColor, null);
   linkStyle.underline = true;
   int[] bidiSegments = new int[offsets.length * 2];
   for (int i = 0; i < offsets.length; i++) {
     Point point = offsets[i];
     layout.setStyle(linkStyle, point.x, point.y);
     bidiSegments[i * 2] = point.x;
     bidiSegments[i * 2 + 1] = point.y + 1;
   }
   layout.setSegments(bidiSegments);
   TextStyle mnemonicStyle = new TextStyle(null, null, null);
   mnemonicStyle.underline = true;
   for (int i = 0; i < mnemonics.length; i++) {
     int mnemonic = mnemonics[i];
     if (mnemonic != -1) {
       layout.setStyle(mnemonicStyle, mnemonic, mnemonic);
     }
   }
   redraw();
 }
Пример #2
0
 public Point computeSize(int wHint, int hHint, boolean changed) {
   checkWidget();
   Point size = computeSize(handle, wHint, hHint, changed);
   if ((style & SWT.ARROW) == 0) {
     int border = getBorderWidth();
     size.x += border * 2;
     size.y += border * 2;
   }
   return size;
 }
Пример #3
0
 public Point computeSize(int wHint, int hHint, boolean changed) {
   checkWidget();
   Point size = super.computeSize(wHint, hHint, changed);
   if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0;
   if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0;
   boolean scrollable = OS.gtk_notebook_get_scrollable(handle);
   OS.gtk_notebook_set_scrollable(handle, false);
   Point notebookSize = computeNativeSize(handle, wHint, hHint, changed);
   OS.gtk_notebook_set_scrollable(handle, scrollable);
   size.x = Math.max(notebookSize.x, size.x);
   size.y = Math.max(notebookSize.y, size.y);
   return size;
 }
Пример #4
0
  public Point computeSize(int wHint, int hHint, boolean changed) {
    checkWidget();
    Point size = null;
    if (orientation == SWT.HORIZONTAL) {
      size = new Point(DEFAULT_WIDTH, DEFAULT_HEIGHT);
    } else {
      size = new Point(DEFAULT_HEIGHT, DEFAULT_WIDTH);
    }
    if (wHint != SWT.DEFAULT) size.x = wHint;
    if (hHint != SWT.DEFAULT) size.y = hHint;

    return size;
  }
Пример #5
0
 public Point computeSize(int wHint, int hHint, boolean changed) {
   checkWidget();
   Point e = getTotalSize(image, text);
   if (wHint == SWT.DEFAULT) {
     e.x += leftMargin + rightMargin;
   } else {
     e.x = wHint;
   }
   if (hHint == SWT.DEFAULT) {
     e.y += topMargin + bottomMargin;
   } else {
     e.y = hHint;
   }
   return e;
 }
Пример #6
0
 LRESULT WM_MOUSEMOVE(int /*long*/ wParam, int /*long*/ lParam) {
   LRESULT result = super.WM_MOUSEMOVE(wParam, lParam);
   if (OS.COMCTL32_MAJOR < 6) {
     int x = OS.GET_X_LPARAM(lParam);
     int y = OS.GET_Y_LPARAM(lParam);
     if (OS.GetKeyState(OS.VK_LBUTTON) < 0) {
       int oldSelection = selection.y;
       selection.y = layout.getOffset(x, y, null);
       if (selection.y != oldSelection) {
         int newSelection = selection.y;
         if (oldSelection > newSelection) {
           int temp = oldSelection;
           oldSelection = newSelection;
           newSelection = temp;
         }
         Rectangle rect = layout.getBounds(oldSelection, newSelection);
         redraw(rect.x, rect.y, rect.width, rect.height, false);
       }
     } else {
       for (int j = 0; j < offsets.length; j++) {
         Rectangle[] rects = getRectangles(j);
         for (int i = 0; i < rects.length; i++) {
           Rectangle rect = rects[i];
           if (rect.contains(x, y)) {
             setCursor(display.getSystemCursor(SWT.CURSOR_HAND));
             return result;
           }
         }
       }
       setCursor(null);
     }
   }
   return result;
 }
Пример #7
0
 /**
  * Sets the receiver's text.
  *
  * <p>The string can contain both regular text and hyperlinks. A hyperlink is delimited by an
  * anchor tag, &lt;A&gt; and &lt;/A&gt;. Within an anchor, a single HREF attribute is supported.
  * When a hyperlink is selected, the text field of the selection event contains either the text of
  * the hyperlink or the value of its HREF, if one was specified. In the rare case of identical
  * hyperlinks within the same string, the HREF attribute can be used to distinguish between them.
  * The string may include the mnemonic character and line delimiters. The only delimiter the HREF
  * attribute supports is the quotation mark (").
  *
  * <p>Mnemonics are indicated by an '&amp;' that causes the next character to be the mnemonic. The
  * receiver can have a mnemonic in the text preceding each link. When the user presses a key
  * sequence that matches the mnemonic, focus is assigned to the link that follows the text.
  * Mnemonics in links and in the trailing text are ignored. On most platforms, the mnemonic
  * appears underlined but may be emphasised in a platform specific manner. The mnemonic indicator
  * character '&amp;' can be escaped by doubling it in the string, causing a single '&amp;' to be
  * displayed.
  *
  * @param string the new text
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the text is null
  *     </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 setText(String string) {
   checkWidget();
   if (string == null) error(SWT.ERROR_NULL_ARGUMENT);
   if (string.equals(text)) return;
   text = string;
   if (OS.COMCTL32_MAJOR >= 6) {
     boolean enabled = OS.IsWindowEnabled(handle);
     /*
      * Bug in Windows.  For some reason, when SetWindowText()
      * is used to set the text of a link control to the empty
      * string, the old text remains.  The fix is to set the
      * text to a space instead.
      */
     if (string.length() == 0) string = " "; // $NON-NLS-1$
     TCHAR buffer = new TCHAR(getCodePage(), string, true);
     OS.SetWindowText(handle, buffer);
     parse(text);
     enableWidget(enabled);
   } else {
     layout.setText(parse(text));
     focusIndex = offsets.length > 0 ? 0 : -1;
     selection.x = selection.y = -1;
     int bits = OS.GetWindowLong(handle, OS.GWL_STYLE);
     if (offsets.length > 0) {
       bits |= OS.WS_TABSTOP;
     } else {
       bits &= ~OS.WS_TABSTOP;
     }
     OS.SetWindowLong(handle, OS.GWL_STYLE, bits);
     boolean enabled = OS.IsWindowEnabled(handle);
     TextStyle linkStyle = new TextStyle(null, enabled ? linkColor : disabledColor, null);
     linkStyle.underline = true;
     for (int i = 0; i < offsets.length; i++) {
       Point point = offsets[i];
       layout.setStyle(linkStyle, point.x, point.y);
     }
     TextStyle mnemonicStyle = new TextStyle(null, null, null);
     mnemonicStyle.underline = true;
     for (int i = 0; i < mnemonics.length; i++) {
       int mnemonic = mnemonics[i];
       if (mnemonic != -1) {
         layout.setStyle(mnemonicStyle, mnemonic, mnemonic);
       }
     }
     redraw();
   }
 }
Пример #8
0
 @Override
 long /*int*/ gtk_button_press_event(long /*int*/ widget, long /*int*/ event) {
   long /*int*/ result = super.gtk_button_press_event(widget, event);
   if (result != 0) return result;
   GdkEventButton gdkEvent = new GdkEventButton();
   OS.memmove(gdkEvent, event, GdkEventButton.sizeof);
   if (gdkEvent.button == 1 && gdkEvent.type == OS.GDK_BUTTON_PRESS) {
     if (focusIndex != -1) setFocus();
     int x = (int) gdkEvent.x;
     int y = (int) gdkEvent.y;
     if ((style & SWT.MIRRORED) != 0) x = getClientWidth() - x;
     int offset = layout.getOffset(x, y, null);
     int oldSelectionX = selection.x;
     int oldSelectionY = selection.y;
     selection.x = offset;
     selection.y = -1;
     if (oldSelectionX != -1 && oldSelectionY != -1) {
       if (oldSelectionX > oldSelectionY) {
         int temp = oldSelectionX;
         oldSelectionX = oldSelectionY;
         oldSelectionY = temp;
       }
       Rectangle rect = layout.getBounds(oldSelectionX, oldSelectionY);
       redraw(rect.x, rect.y, rect.width, rect.height, false);
     }
     for (int j = 0; j < offsets.length; j++) {
       Rectangle[] rects = getRectangles(j);
       for (int i = 0; i < rects.length; i++) {
         Rectangle rect = rects[i];
         if (rect.contains(x, y)) {
           focusIndex = j;
           redraw();
           return result;
         }
       }
     }
   }
   return result;
 }
Пример #9
0
 LRESULT WM_LBUTTONDOWN(int /*long*/ wParam, int /*long*/ lParam) {
   LRESULT result = super.WM_LBUTTONDOWN(wParam, lParam);
   if (result == LRESULT.ZERO) return result;
   if (OS.COMCTL32_MAJOR < 6) {
     if (focusIndex != -1) setFocus();
     int x = OS.GET_X_LPARAM(lParam);
     int y = OS.GET_Y_LPARAM(lParam);
     int offset = layout.getOffset(x, y, null);
     int oldSelectionX = selection.x;
     int oldSelectionY = selection.y;
     selection.x = offset;
     selection.y = -1;
     if (oldSelectionX != -1 && oldSelectionY != -1) {
       if (oldSelectionX > oldSelectionY) {
         int temp = oldSelectionX;
         oldSelectionX = oldSelectionY;
         oldSelectionY = temp;
       }
       Rectangle rect = layout.getBounds(oldSelectionX, oldSelectionY);
       redraw(rect.x, rect.y, rect.width, rect.height, false);
     }
     for (int j = 0; j < offsets.length; j++) {
       Rectangle[] rects = getRectangles(j);
       for (int i = 0; i < rects.length; i++) {
         Rectangle rect = rects[i];
         if (rect.contains(x, y)) {
           if (j != focusIndex) {
             redraw();
           }
           focusIndex = mouseDownIndex = j;
           return result;
         }
       }
     }
   }
   return result;
 }
Пример #10
0
 @Override
 long /*int*/ gtk_motion_notify_event(long /*int*/ widget, long /*int*/ event) {
   long /*int*/ result = super.gtk_motion_notify_event(widget, event);
   if (result != 0) return result;
   GdkEventMotion gdkEvent = new GdkEventMotion();
   OS.memmove(gdkEvent, event, GdkEventMotion.sizeof);
   int x = (int) gdkEvent.x;
   int y = (int) gdkEvent.y;
   if ((style & SWT.MIRRORED) != 0) x = getClientWidth() - x;
   if ((gdkEvent.state & OS.GDK_BUTTON1_MASK) != 0) {
     int oldSelection = selection.y;
     selection.y = layout.getOffset(x, y, null);
     if (selection.y != oldSelection) {
       int newSelection = selection.y;
       if (oldSelection > newSelection) {
         int temp = oldSelection;
         oldSelection = newSelection;
         newSelection = temp;
       }
       Rectangle rect = layout.getBounds(oldSelection, newSelection);
       redraw(rect.x, rect.y, rect.width, rect.height, false);
     }
   } else {
     for (int j = 0; j < offsets.length; j++) {
       Rectangle[] rects = getRectangles(j);
       for (int i = 0; i < rects.length; i++) {
         Rectangle rect = rects[i];
         if (rect.contains(x, y)) {
           setCursor(display.getSystemCursor(SWT.CURSOR_HAND));
           return result;
         }
       }
     }
     setCursor(null);
   }
   return result;
 }
Пример #11
0
  /** Compute the minimum size. */
  private Point getTotalSize(Image image, String text) {
    Point size = new Point(0, 0);

    if (image != null) {
      Rectangle r = image.getBounds();
      size.x += r.width;
      size.y += r.height;
    }

    GC gc = new GC(this);
    if (text != null && text.length() > 0) {
      Point e = gc.textExtent(text, DRAW_FLAGS);
      size.x += e.x;
      size.y = Math.max(size.y, e.y);
      if (image != null) size.x += GAP;
    } else {
      size.y = Math.max(size.y, gc.getFontMetrics().getHeight());
    }
    gc.dispose();

    return size;
  }
 private void updatePoint(MouseEvent e) {
   p.x = e.x;
   p.y = e.y;
 }
Пример #13
0
  void onPaint(PaintEvent event) {
    Rectangle rect = getClientArea();
    if (rect.width == 0 || rect.height == 0) return;

    boolean shortenText = false;
    String t = text;
    Image img = image;
    int availableWidth = Math.max(0, rect.width - (leftMargin + rightMargin));
    Point extent = getTotalSize(img, t);
    if (extent.x > availableWidth) {
      img = null;
      extent = getTotalSize(img, t);
      if (extent.x > availableWidth) {
        shortenText = true;
      }
    }

    GC gc = event.gc;
    String[] lines = text == null ? null : splitString(text);

    // shorten the text
    if (shortenText) {
      extent.x = 0;
      for (int i = 0; i < lines.length; i++) {
        Point e = gc.textExtent(lines[i], DRAW_FLAGS);
        if (e.x > availableWidth) {
          lines[i] = shortenText(gc, lines[i], availableWidth);
          extent.x = Math.max(extent.x, getTotalSize(null, lines[i]).x);
        } else {
          extent.x = Math.max(extent.x, e.x);
        }
      }
      if (appToolTipText == null) {
        super.setToolTipText(text);
      }
    } else {
      super.setToolTipText(appToolTipText);
    }

    // determine horizontal position
    int x = rect.x + leftMargin;
    if (align == SWT.CENTER) {
      x = (rect.width - extent.x) / 2;
    }
    if (align == SWT.RIGHT) {
      x = rect.width - rightMargin - extent.x;
    }

    // draw a background image behind the text
    try {
      if (backgroundImage != null) {
        // draw a background image behind the text
        Rectangle imageRect = backgroundImage.getBounds();
        // tile image to fill space
        gc.setBackground(getBackground());
        gc.fillRectangle(rect);
        int xPos = 0;
        while (xPos < rect.width) {
          int yPos = 0;
          while (yPos < rect.height) {
            gc.drawImage(backgroundImage, xPos, yPos);
            yPos += imageRect.height;
          }
          xPos += imageRect.width;
        }
      } else if (gradientColors != null) {
        // draw a gradient behind the text
        final Color oldBackground = gc.getBackground();
        if (gradientColors.length == 1) {
          if (gradientColors[0] != null) gc.setBackground(gradientColors[0]);
          gc.fillRectangle(0, 0, rect.width, rect.height);
        } else {
          final Color oldForeground = gc.getForeground();
          Color lastColor = gradientColors[0];
          if (lastColor == null) lastColor = oldBackground;
          int pos = 0;
          for (int i = 0; i < gradientPercents.length; ++i) {
            gc.setForeground(lastColor);
            lastColor = gradientColors[i + 1];
            if (lastColor == null) lastColor = oldBackground;
            gc.setBackground(lastColor);
            if (gradientVertical) {
              final int gradientHeight = (gradientPercents[i] * rect.height / 100) - pos;
              gc.fillGradientRectangle(0, pos, rect.width, gradientHeight, true);
              pos += gradientHeight;
            } else {
              final int gradientWidth = (gradientPercents[i] * rect.width / 100) - pos;
              gc.fillGradientRectangle(pos, 0, gradientWidth, rect.height, false);
              pos += gradientWidth;
            }
          }
          if (gradientVertical && pos < rect.height) {
            gc.setBackground(getBackground());
            gc.fillRectangle(0, pos, rect.width, rect.height - pos);
          }
          if (!gradientVertical && pos < rect.width) {
            gc.setBackground(getBackground());
            gc.fillRectangle(pos, 0, rect.width - pos, rect.height);
          }
          gc.setForeground(oldForeground);
        }
        gc.setBackground(oldBackground);
      } else {
        if (background != null || (getStyle() & SWT.DOUBLE_BUFFERED) == 0) {
          gc.setBackground(getBackground());
          gc.fillRectangle(rect);
        }
      }
    } catch (SWTException e) {
      if ((getStyle() & SWT.DOUBLE_BUFFERED) == 0) {
        gc.setBackground(getBackground());
        gc.fillRectangle(rect);
      }
    }

    // draw border
    int style = getStyle();
    if ((style & SWT.SHADOW_IN) != 0 || (style & SWT.SHADOW_OUT) != 0) {
      paintBorder(gc, rect);
    }

    /*
     * Compute text height and image height. If image height is more than
     * the text height, draw image starting from top margin. Else draw text
     * starting from top margin.
     */
    Rectangle imageRect = null;
    int lineHeight = 0, textHeight = 0, imageHeight = 0;

    if (img != null) {
      imageRect = img.getBounds();
      imageHeight = imageRect.height;
    }
    if (lines != null) {
      lineHeight = gc.getFontMetrics().getHeight();
      textHeight = lines.length * lineHeight;
    }

    int imageY = 0, midPoint = 0, lineY = 0;
    if (imageHeight > textHeight) {
      if (topMargin == DEFAULT_MARGIN && bottomMargin == DEFAULT_MARGIN)
        imageY = rect.y + (rect.height - imageHeight) / 2;
      else imageY = topMargin;
      midPoint = imageY + imageHeight / 2;
      lineY = midPoint - textHeight / 2;
    } else {
      if (topMargin == DEFAULT_MARGIN && bottomMargin == DEFAULT_MARGIN)
        lineY = rect.y + (rect.height - textHeight) / 2;
      else lineY = topMargin;
      midPoint = lineY + textHeight / 2;
      imageY = midPoint - imageHeight / 2;
    }

    // draw the image
    if (img != null) {
      gc.drawImage(
          img, 0, 0, imageRect.width, imageHeight, x, imageY, imageRect.width, imageHeight);
      x += imageRect.width + GAP;
      extent.x -= imageRect.width + GAP;
    }

    // draw the text
    if (lines != null) {
      gc.setForeground(getForeground());
      for (int i = 0; i < lines.length; i++) {
        int lineX = x;
        if (lines.length > 1) {
          if (align == SWT.CENTER) {
            int lineWidth = gc.textExtent(lines[i], DRAW_FLAGS).x;
            lineX = x + Math.max(0, (extent.x - lineWidth) / 2);
          }
          if (align == SWT.RIGHT) {
            int lineWidth = gc.textExtent(lines[i], DRAW_FLAGS).x;
            lineX = Math.max(x, rect.x + rect.width - rightMargin - lineWidth);
          }
        }
        gc.drawText(lines[i], lineX, lineY, DRAW_FLAGS);
        lineY += lineHeight;
      }
    }
  }