org.eclipse.swt.widgets.Tree.hooks()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中org.eclipse.swt.widgets.Tree.hooks()方法的一些代码示例，展示了Tree.hooks()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Tree.hooks()方法的具体详情如下：
包路径：org.eclipse.swt.widgets.Tree
类名称：Tree
方法名：hooks

Tree.hooks介绍

暂无

代码示例

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

boolean isCustomToolTip () {
  return hooks (SWT.MeasureItem);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

@Override
void enableDrag (boolean enabled) {
  int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
  if (enabled && hooks (SWT.DragDetect)) {
    bits &= ~OS.TVS_DISABLEDRAGDROP;
  } else {
    bits |= OS.TVS_DISABLEDRAGDROP;
  }
  OS.SetWindowLong (handle, OS.GWL_STYLE, bits);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

@Override
LRESULT WM_HSCROLL (int /*long*/ wParam, int /*long*/ lParam) {
  boolean fixScroll = false;
  if ((style & SWT.DOUBLE_BUFFERED) != 0) {
    fixScroll = (style & SWT.VIRTUAL) != 0 || hooks (SWT.EraseItem) || hooks (SWT.PaintItem);
  }
  if (fixScroll) {
    style &= ~SWT.DOUBLE_BUFFERED;
    if (explorerTheme) {
      OS.SendMessage (handle, OS.TVM_SETEXTENDEDSTYLE, OS.TVS_EX_DOUBLEBUFFER, 0);
    }
  }
  LRESULT result = super.WM_HSCROLL (wParam, lParam);
  if (fixScroll) {
    style |= SWT.DOUBLE_BUFFERED;
    if (explorerTheme) {
      OS.SendMessage (handle, OS.TVM_SETEXTENDEDSTYLE, OS.TVS_EX_DOUBLEBUFFER, OS.TVS_EX_DOUBLEBUFFER);
    }
  }
  if (result != null) return result;
  return result;
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

void redraw (int columnIndex) {
  if (parent.ignoreRedraw || !isDrawing()) return;
  /* redraw the full item if columnIndex == -1 */
  NSOutlineView outlineView = (NSOutlineView) parent.view;
  NSRect rect;
  if (columnIndex == -1 || parent.hooks (SWT.MeasureItem) || parent.hooks (SWT.EraseItem) || parent.hooks (SWT.PaintItem)) {
    rect = outlineView.rectOfRow (outlineView.rowForItem (handle));
  } else {
    int index;
    if (parent.columnCount == 0) {
      index = (parent.style & SWT.CHECK) != 0 ? 1 : 0;
    } else {
      if (0 <= columnIndex && columnIndex < parent.columnCount) {
        index = parent.indexOf (parent.columns[columnIndex].nsColumn);
      } else {
        return;
      }
    }
    rect = outlineView.frameOfCellAtColumn (index, outlineView.rowForItem (handle));
  }
  outlineView.setNeedsDisplayInRect (rect);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

case OS.SB_PAGEDOWN:
case OS.SB_PAGEUP:
  fixScroll = (style & SWT.VIRTUAL) != 0 || hooks (SWT.EraseItem) || hooks (SWT.PaintItem);
  break;

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

void highlightSelectionInClipRect(long /*int*/ id, long /*int*/ sel, long /*int*/ rect) {
  if (hooks (SWT.EraseItem)) return;
  if ((style & SWT.HIDE_SELECTION) != 0 && !hasFocus()) return;
  NSRect clipRect = new NSRect ();
  OS.memmove (clipRect, rect, NSRect.sizeof);
  callSuper (id, sel, clipRect);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

void redraw () {
  if (parent.currentItem == this || !parent.getDrawing ()) return;
  int /*long*/ hwnd = parent.handle;
  if (!OS.IsWindowVisible (hwnd)) return;
  /*
  * When there are no columns and the tree is not
  * full selection, redraw only the text.  This is
  * an optimization to reduce flashing.
  */
  boolean full = (parent.style & (SWT.FULL_SELECTION | SWT.VIRTUAL)) != 0;
  if (!full) {
    full = parent.columnCount != 0;
    if (!full) {
      if (parent.hooks (SWT.EraseItem) || parent.hooks (SWT.PaintItem)) {
        full = true;
      }
    }
  }
  RECT rect = new RECT ();
  if (OS.TreeView_GetItemRect (hwnd, handle, rect, !full)) {
    OS.InvalidateRect (hwnd, rect, true);
  }
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

void updateFullSelection () {
  if ((style & SWT.FULL_SELECTION) != 0) {
    int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits;
    if ((newBits & OS.TVS_FULLROWSELECT) != 0) {
      if (!OS.IsWindowEnabled (handle) || findImageControl () != null) {
        if (!explorerTheme) newBits &= ~OS.TVS_FULLROWSELECT;
      }
    } else {
      if (OS.IsWindowEnabled (handle) && findImageControl () == null) {
        if (!hooks (SWT.EraseItem) && !hooks (SWT.PaintItem)) {
          newBits |= OS.TVS_FULLROWSELECT;
        }
      }
    }
    if (newBits != oldBits) {
      OS.SetWindowLong (handle, OS.GWL_STYLE, newBits);
      OS.InvalidateRect (handle, null, true);
    }
  }
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

void setFont (NSFont font) {
  super.setFont (font);
  setItemHeight (null, font, !hooks (SWT.MeasureItem));
  view.setNeedsDisplay (true);
  clearCachedWidth (items);
  setScrollWidth ();
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

TreeItem getItemInPixels (Point point) {
  TVHITTESTINFO lpht = new TVHITTESTINFO ();
  lpht.x = point.x;
  lpht.y = point.y;
  OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht);
  if (lpht.hItem != 0) {
    int flags = OS.TVHT_ONITEM;
    if ((style & SWT.FULL_SELECTION) != 0) {
      flags |= OS.TVHT_ONITEMRIGHT | OS.TVHT_ONITEMINDENT;
    } else {
      if (hooks (SWT.MeasureItem)) {
        lpht.flags &= ~(OS.TVHT_ONITEMICON | OS.TVHT_ONITEMLABEL);
        if (hitTestSelection (lpht.hItem, lpht.x, lpht.y)) {
          lpht.flags |= OS.TVHT_ONITEMICON | OS.TVHT_ONITEMLABEL;
        }
      }
    }
    if ((lpht.flags & flags) != 0) return _getItem (lpht.hItem);
  }
  return null;
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

LRESULT CDDS_PREPAINT (NMTVCUSTOMDRAW nmcd, int /*long*/ wParam, int /*long*/ lParam) {
  if (explorerTheme) {
    if ((OS.IsWindowEnabled (handle) && hooks (SWT.EraseItem)) || findImageControl () != null) {
      RECT rect = new RECT ();
      OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom);
      drawBackground (nmcd.hdc, rect);
    }
  }
  return new LRESULT (OS.CDRF_NOTIFYITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

if (!hooks (SWT.MeasureItem) && !hooks (SWT.EraseItem) && !hooks (SWT.PaintItem)) {
  customDraw = false;

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

NSSize cellSize (long /*int*/ id, long /*int*/ sel) {
  NSSize size = super.cellSize(id, sel);
  NSCell cell = new NSCell(id);
  NSImage image = cell.image();
  if (image != null) size.width += imageBounds.width + IMAGE_GAP;
  if (hooks(SWT.MeasureItem)) {
    long /*int*/ [] outValue = new long /*int*/ [1];
    OS.object_getInstanceVariable(id, Display.SWT_ROW, outValue);
    TreeItem item = (TreeItem) display.getWidget (outValue [0]);
    OS.object_getInstanceVariable(id, Display.SWT_COLUMN, outValue);
    long /*int*/ tableColumn = outValue[0];
    int columnIndex = 0;
    for (int i=0; i<columnCount; i++) {
      if (columns [i].nsColumn.id == tableColumn) {
        columnIndex = i;
        break;
      }
    }
    sendMeasureItem (item, cell.isHighlighted(), columnIndex, size);
  }
  return size;
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

NSRect expansionRect;
if (rect.width != 0 && rect.height != 0) {
  if (hooks(SWT.MeasureItem)) {
    expansionRect = cellRect;
    NSSize cellSize = cell.cellSize();
  if (hooks(SWT.MeasureItem)) {
    expansionRect = cellRect;
    NSSize cellSize = cell.cellSize();

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

boolean canDragRowsWithIndexes_atPoint(long /*int*/ id, long /*int*/ sel, long /*int*/ rowIndexes, NSPoint mouseDownPoint) {
  if (!super.canDragRowsWithIndexes_atPoint(id, sel, rowIndexes, mouseDownPoint)) return false;
  
  // If the current row is not selected and the user is not attempting to modify the selection, select the row first.
  NSTableView widget = (NSTableView)view;
  long /*int*/ row = widget.rowAtPoint(mouseDownPoint);
  long /*int*/ modifiers = NSApplication.sharedApplication().currentEvent().modifierFlags();
  
  boolean drag = (state & DRAG_DETECT) != 0 && hooks (SWT.DragDetect);
  if (drag) {
    if (!widget.isRowSelected(row) && (modifiers & (OS.NSCommandKeyMask | OS.NSShiftKeyMask | OS.NSAlternateKeyMask | OS.NSControlKeyMask)) == 0) {
      NSIndexSet set = (NSIndexSet)new NSIndexSet().alloc();
      set = set.initWithIndex(row);
      widget.selectRowIndexes (set, false);
      set.release();
    }
  }
  
  // The clicked row must be selected to initiate a drag.
  return (widget.isRowSelected(row) && drag) || !hasFocus();
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

boolean hitTestSelection (int /*long*/ hItem, int x, int y) {
  if (hItem == 0) return false;
  TreeItem item = _getItem (hItem);
  if (item == null) return false;
  if (!hooks (SWT.MeasureItem)) return false;
  boolean result = false;

  //BUG? - moved columns, only hittest first column
  //BUG? - check drag detect
  int [] order = new int [1], index = new int [1];

  int /*long*/ hDC = OS.GetDC (handle);
  int /*long*/ oldFont = 0, newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0);
  if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont);
  int /*long*/ hFont = item.fontHandle (order [index [0]]);
  if (hFont != -1) hFont = OS.SelectObject (hDC, hFont);
  int state = (int)/*64*/OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED);
  int detail = (state & OS.TVIS_SELECTED) != 0 ? SWT.SELECTED : 0;
  Event event = sendMeasureItemEvent (item, order [index [0]], hDC, detail);
  if (event.getBoundsInPixels ().contains (x, y)) result = true;
  if (newFont != 0) OS.SelectObject (hDC, oldFont);
  OS.ReleaseDC (handle, hDC);
//    if (isDisposed () || item.isDisposed ()) return false;
  return result;
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

sendMeasure = cached;
if (sendMeasure && parent.hooks (SWT.MeasureItem)) {
  gc.setFont (font);
  Event event = new Event ();

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

void sendMeasureEvent (long /*int*/ cell, long /*int*/ width, long /*int*/ height) {
  if (!ignoreSize && OS.GTK_IS_CELL_RENDERER_TEXT (cell) && hooks (SWT.MeasureItem)) {
    long /*int*/ iter = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX2);
    TreeItem item = null;

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

void sendMeasureEvent (int /*long*/ cell, int /*long*/ width, int /*long*/ height) {
  if (!ignoreSize && OS.GTK_IS_CELL_RENDERER_TEXT (cell) && hooks (SWT.MeasureItem)) {
    int /*long*/ iter = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX2);
    TreeItem item = null;

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

void sendMeasureEvent (int /*long*/ cell, int /*long*/ width, int /*long*/ height) {
  if (!ignoreSize && OS.GTK_IS_CELL_RENDERER_TEXT (cell) && hooks (SWT.MeasureItem)) {
    int /*long*/ iter = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX2);
    TreeItem item = null;

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