TranslucentWindow.m

   1 //
   2 //  TranslucentView.m
   3 //
   4 //  Created by Takashi T. Hamada on Thu Nov 01 2000.
   5 //  Copyright (c) 2000,2001 Takashi T. Hamada. All rights reserved.
   6 //
   7 //  Modifications:
   8 //  bb 26.06.2002 - removed the _transparency method
   9 //
  10
  11 #import "TranslucentWindow.h"
  12
  13
  14 @implementation TranslucentWindow
  15
  16 //-------------------------------------------------------------
  17 // set the transparency
  18 //-------------------------------------------------------------
  19 //- (float)_transparency
  20 //{
  21 //    return 0.9999999999;
  22 //}
  23
  24
  25
  26 // Not much here, just calling the following private API.
  27 extern void _NSSetWindowOpacity(int windowNumber, BOOL isOpaque);
  28
  29
  30 //-------------------------------------------------------------
  31 // make the window (pseudo) transparent
  32 //-------------------------------------------------------------
  33 - initWithContentRect:(NSRect)contentRect styleMask:(unsigned int)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag
  34 {
  35     if (self = [super initWithContentRect:contentRect styleMask:aStyle backing:bufferingType defer:flag])
  36         _NSSetWindowOpacity([self windowNumber], NO);
  37
  38     [self setAcceptsMouseMovedEvents:YES];      // for dragging itself by receiving the mouse events
  39
  40     return self;
  41 }
  42
  43
  44 //-------------------------------------------------------------
  45 // no shadow is needed
  46 //-------------------------------------------------------------
  47 - (BOOL)hasShadow
  48 {
  49     return NO;
  50 }
  51
  52
  53 //-------------------------------------------------------------
  54 // For displaying the tooltips with transparent window
  55 //-------------------------------------------------------------
  56 - (BOOL)canBecomeKeyWindow
  57 {
  58     return YES;
  59 }
  60
  61 @end