src/qeffects.h

   1 //Added by qt3to4:
   2 #include <QEvent>
   3 #include <QCloseEvent>
   4 #include <QPaintEvent>
   5 #if 0
   6
   7 // Note: this file has been copied from the Qt source.
   8 // Those classes are normally used internally in Qt
   9 // but we need them for immitate the roll-over effect of QComboBox.
  10 //
  11 // Some class definitions have been moved from qeffects.cpp to this file.
  12 // They are framed with the comment "MOVED FROM qeffect.cpp"
  13
  14 /****************************************************************************
  15 ** $Id: qt/qeffects_p.h   3.3.4   edited May 27 2003 $
  16 **
  17 ** Definition of QEffects functions
  18 **
  19 ** Created : 000621
  20 **
  21 ** Copyright (C) 2000 Trolltech AS.  All rights reserved.
  22 **
  23 ** This file is part of the widgets module of the Qt GUI Toolkit.
  24 **
  25 ** This file may be distributed under the terms of the Q Public License
  26 ** as defined by Trolltech AS of Norway and appearing in the file
  27 ** LICENSE.QPL included in the packaging of this file.
  28 **
  29 ** This file may be distributed and/or modified under the terms of the
  30 ** GNU General Public License version 2 as published by the Free Software
  31 ** Foundation and appearing in the file LICENSE.GPL included in the
  32 ** packaging of this file.
  33 **
  34 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
  35 ** licenses may use this file in accordance with the Qt Commercial License
  36 ** Agreement provided with the Software.
  37 **
  38 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  39 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  40 **
  41 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
  42 **   information about Qt Commercial License Agreements.
  43 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
  44 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
  45 **
  46 ** Contact info@trolltech.com if any conditions of this licensing are
  47 ** not clear to you.
  48 **
  49 **********************************************************************/
  50
  51 #ifndef QEFFECTS_P_H
  52 #define QEFFECTS_P_H
  53
  54
  55 //
  56 //  W A R N I N G
  57 //  -------------
  58 //
  59 // This file is not part of the Qt API.  It exists for the convenience
  60 // of qeffects.cpp, qcombobox.cpp, qpopupmenu.cpp and qtooltip.cpp.
  61 // This header file may change from version to version without notice,
  62 // or even be removed.
  63 //
  64 // We mean it.
  65 //
  66 //
  67
  68 #ifndef QT_H
  69 #include "qnamespace.h"
  70 #endif // QT_H
  71
  72 #ifndef QT_NO_EFFECTS
  73 class QWidget;
  74
  75 struct QEffects
  76 {
  77         enum Direction {
  78                 LeftScroll      = 0x0001,
  79                 RightScroll     = 0x0002,
  80                 UpScroll        = 0x0004,
  81                 DownScroll      = 0x0008
  82         };
  83
  84         typedef uint DirFlags;
  85 };
  86
  87 extern void Q_EXPORT qScrollEffect( QWidget*, QEffects::DirFlags dir = QEffects::DownScroll, int time = -1 );
  88 extern void Q_EXPORT qFadeEffect( QWidget*, int time = -1 );
  89
  90
  91 /******************* MOVED FROM qeffect.cpp: */
  92
  93 #include "qpointer.h"
  94 #include "qdatetime.h"
  95 #include "qtimer.h"
  96 #include "qpixmap.h"
  97 #include "qimage.h"
  98
  99 /*
 100   Internal class to get access to protected QWidget-members
 101 */
 102
 103 class QAccessWidget : public QWidget
 104 {
 105         friend class QAlphaWidget;
 106         friend class QRollEffect;
 107         public:
 108                 QAccessWidget( QWidget* parent=0, const char* name=0, WFlags f = 0 )
 109         : QWidget( parent, name, f ) {}
 110 };
 111
 112 /*
 113   Internal class QAlphaWidget.
 114
 115   The QAlphaWidget is shown while the animation lasts
 116   and displays the pixmap resulting from the alpha blending.
 117 */
 118
 119 class QAlphaWidget: public QWidget, private QEffects
 120 {
 121         Q_OBJECT
 122         public:
 123                 QAlphaWidget( QWidget* w, WFlags f = 0 );
 124
 125                 void run( int time );
 126
 127         protected:
 128                 void paintEvent( QPaintEvent* e );
 129                 void closeEvent( QCloseEvent* );
 130                 bool eventFilter( QObject* o, QEvent* e );
 131                 void alphaBlend();
 132
 133         protected slots:
 134                 void render();
 135
 136         private:
 137                 QPixmap pm;
 138                 double alpha;
 139                 QImage back;
 140                 QImage front;
 141                 QImage mixed;
 142                 QPointer<QAccessWidget> widget;
 143                 int duration;
 144                 int elapsed;
 145                 bool showWidget;
 146                 QTimer anim;
 147                 QTime checkTime;
 148 };
 149
 150 /*
 151   Internal class QRollEffect
 152
 153   The QRollEffect widget is shown while the animation lasts
 154   and displays a scrolling pixmap.
 155 */
 156
 157 class QRollEffect : public QWidget, private QEffects
 158 {
 159         Q_OBJECT
 160         public:
 161                 QRollEffect( QWidget* w, WFlags f, DirFlags orient );
 162
 163                 void run( int time );
 164
 165         protected:
 166                 void paintEvent( QPaintEvent* );
 167                 bool eventFilter( QObject*, QEvent* );
 168                 void closeEvent( QCloseEvent* );
 169
 170         private slots:
 171                 void scroll();
 172
 173         private:
 174                 QPointer<QAccessWidget> widget;
 175
 176                 int currentHeight;
 177                 int currentWidth;
 178                 int totalHeight;
 179                 int totalWidth;
 180
 181                 int duration;
 182                 int elapsed;
 183                 bool done;
 184                 bool showWidget;
 185                 int orientation;
 186
 187                 QTimer anim;
 188                 QTime checkTime;
 189
 190                 QPixmap pm;
 191 };
 192
 193 /******************************/
 194
 195 #endif // QT_NO_EFFECTS
 196
 197 #endif // QEFFECTS_P_H
 198
 199 #endif // #if 0