summaryrefslogtreecommitdiffstats
path: root/ksnapshot/regiongrabber.cpp
blob: 74ac960abb68dbdff6c445315a7885c3252e78d5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
/*
  Copyright (C) 2003 Nadeem Hasan <nhasan@kde.org>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or ( at your option ) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Library General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this library; see the file COPYING.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  Boston, MA 02110-1301, USA.
*/

#include "regiongrabber.h"

#include <tqapplication.h>
#include <tqpainter.h>
#include <tqpalette.h>
#include <tqstyle.h>
#include <tqtimer.h>
#include <tqtooltip.h>

#include <kglobalsettings.h>

SizeTip::SizeTip( TQWidget *parent, const char *name )
    : TQLabel( parent, name, WStyle_Customize | WX11BypassWM |
      WStyle_StaysOnTop | WStyle_NoBorder | WStyle_Tool )
{
  setMargin( 2 );
  setIndent( 0 );
  setFrameStyle( TQFrame::Plain | TQFrame::Box );

  setPalette( TQToolTip::palette() );
}

void SizeTip::setTip( const TQRect &rect )
{
  TQString tip = TQString( "%1x%2" ).tqarg( rect.width() )
      .tqarg( rect.height() );

  setText( tip );
  adjustSize();

  positionTip( rect );
}

void SizeTip::positionTip( const TQRect &rect )
{
  TQRect tipRect = tqgeometry();
  tipRect.moveTopLeft( TQPoint( 0, 0 ) );

  if ( rect.intersects( tipRect ) )
  {
    TQRect deskR = KGlobalSettings::desktopGeometry( TQPoint( 0, 0 ) );

    tipRect.moveCenter( TQPoint( deskR.width()/2, deskR.height()/2 ) );
    if ( !rect.contains( tipRect, true ) && rect.intersects( tipRect ) )
      tipRect.moveBottomRight( tqgeometry().bottomRight() );
  }

  move( tipRect.topLeft() );
}

RegionGrabber::RegionGrabber()
  : TQWidget( 0, 0, WStyle_Customize | WX11BypassWM ),
    mouseDown( false ), sizeTip( 0L )
{
  sizeTip = new SizeTip( ( TQWidget * )0L );

  tipTimer = new TQTimer( this );
  connect( tipTimer, TQT_SIGNAL( timeout() ), TQT_SLOT( updateSizeTip() ) );

  TQTimer::singleShot( 200, this, TQT_SLOT( initGrabber() ) );
}

RegionGrabber::~RegionGrabber()
{
  delete sizeTip;
}

void RegionGrabber::initGrabber()
{
  pixmap = TQPixmap::grabWindow( qt_xrootwin() );
  setPaletteBackgroundPixmap( pixmap );

  TQDesktopWidget desktopWidget;
  TQRect desktopSize;
  if ( desktopWidget.isVirtualDesktop() )
    desktopSize = desktopWidget.tqgeometry();
  else
    desktopSize = desktopWidget.screenGeometry( qt_xrootwin() );

  setGeometry( desktopSize );
  showFullScreen();

  TQApplication::setOverrideCursor( crossCursor );
}

void RegionGrabber::mousePressEvent( TQMouseEvent *e )
{
  if ( e->button() == Qt::LeftButton )
  {
    mouseDown = true;
    grabRect = TQRect( e->pos(), e->pos() );
  }
}

void RegionGrabber::mouseMoveEvent( TQMouseEvent *e )
{
  if ( mouseDown )
  {
    sizeTip->hide();
    tipTimer->start( 250, true );

    drawRubber();
    grabRect.setBottomRight( e->pos() );
    drawRubber();
  }
}

void RegionGrabber::mouseReleaseEvent( TQMouseEvent *e )
{
  mouseDown = false;
  drawRubber();
  sizeTip->hide();

  grabRect.setBottomRight( e->pos() );
  grabRect = grabRect.normalize();

  TQPixmap region = TQPixmap::grabWindow( winId(), grabRect.x(), grabRect.y(),
      grabRect.width(), grabRect.height() );

  TQApplication::restoreOverrideCursor();

  emit regionGrabbed( region );
}

void RegionGrabber::keyPressEvent( TQKeyEvent *e )
{
  if ( e->key() == Key_Escape )
  {
    TQApplication::restoreOverrideCursor();
    emit regionGrabbed( TQPixmap() );
  }
  else
    e->ignore();
}

void RegionGrabber::updateSizeTip()
{
  TQRect rect = grabRect.normalize();

  sizeTip->setTip( rect );
  sizeTip->show();
}

void RegionGrabber::drawRubber()
{
  TQPainter p;
  p.begin( this );
  p.setRasterOp( NotROP );
  p.setPen( TQPen( color0, 1 ) );
  p.setBrush( NoBrush );

  tqstyle().tqdrawPrimitive( TQStyle::PE_FocusRect, &p, grabRect, tqcolorGroup(),
      TQStyle::Style_Default, TQStyleOption( tqcolorGroup().base() ) );

  p.end();
}

#include "regiongrabber.moc"