kolourpaint/views/kpView_Events.cpp

   1
   2 /*
   3    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
   4    Copyright (c) 2005 Kazuki Ohta <mover@hct.zaq.ne.jp>
   5    All rights reserved.
   6
   7    Redistribution and use in source and binary forms, with or without
   8    modification, are permitted provided that the following conditions
   9    are met:
  10
  11    1. Redistributions of source code must retain the above copyright
  12       notice, this list of conditions and the following disclaimer.
  13    2. Redistributions in binary form must reproduce the above copyright
  14       notice, this list of conditions and the following disclaimer in the
  15       documentation and/or other materials provided with the distribution.
  16
  17    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27 */
  28
  29
  30 #define DEBUG_KP_VIEW 0
  31 #define DEBUG_KP_VIEW_RENDERER ((DEBUG_KP_VIEW && 1) || 0)
  32
  33
  34 #include <kpView.h>
  35 #include <kpViewPrivate.h>
  36
  37 #include <QKeyEvent>
  38 #include <QMouseEvent>
  39
  40 #include <kpTool.h>
  41
  42
  43 // protected virtual [base QWidget]
  44 void kpView::mouseMoveEvent (QMouseEvent *e)
  45 {
  46 #if DEBUG_KP_VIEW && 0
  47     kDebug () << "kpView(" << objectName () << ")::mouseMoveEvent ("
  48                << e->x () << "," << e->y () << ")"
  49                << endl;
  50 #endif
  51
  52     // TODO: This is wrong if you leaveEvent the mainView by mouseMoving on the
  53     //       mainView, landing on top of the thumbnailView cleverly put on top
  54     //       of the mainView.
  55     setHasMouse (rect ().contains (e->pos ()));
  56
  57     if (tool ())
  58         tool ()->mouseMoveEvent (e);
  59
  60     e->accept ();
  61 }
  62
  63 // protected virtual [base QWidget]
  64 void kpView::mousePressEvent (QMouseEvent *e)
  65 {
  66 #if DEBUG_KP_VIEW && 0
  67     kDebug () << "kpView(" << objectName () << ")::mousePressEvent ("
  68                << e->x () << "," << e->y () << ")"
  69                << endl;
  70 #endif
  71
  72     setHasMouse (true);
  73
  74     if (tool ())
  75         tool ()->mousePressEvent (e);
  76
  77     e->accept ();
  78 }
  79
  80 // protected virtual [base QWidget]
  81 void kpView::mouseReleaseEvent (QMouseEvent *e)
  82 {
  83 #if DEBUG_KP_VIEW && 0
  84     kDebug () << "kpView(" << objectName () << ")::mouseReleaseEvent ("
  85                << e->x () << "," << e->y () << ")"
  86                << endl;
  87 #endif
  88
  89     setHasMouse (rect ().contains (e->pos ()));
  90
  91     if (tool ())
  92         tool ()->mouseReleaseEvent (e);
  93
  94     e->accept ();
  95 }
  96
  97
  98 // public virtual [base QWidget]
  99 void kpView::wheelEvent (QWheelEvent *e)
 100 {
 101     if (tool ())
 102         tool ()->wheelEvent (e);
 103 }
 104
 105
 106 // protected virtual [base QWidget]
 107 void kpView::keyPressEvent (QKeyEvent *e)
 108 {
 109 #if DEBUG_KP_VIEW && 0
 110     kDebug () << "kpView(" << objectName () << ")::keyPressEvent()";
 111 #endif
 112
 113     if (tool ())
 114         tool ()->keyPressEvent (e);
 115
 116     e->accept ();
 117 }
 118
 119 // protected virtual [base QWidget]
 120 void kpView::keyReleaseEvent (QKeyEvent *e)
 121 {
 122 #if DEBUG_KP_VIEW && 0
 123     kDebug () << "kpView(" << objectName () << ")::keyReleaseEvent()";
 124 #endif
 125
 126     if (tool ())
 127         tool ()->keyReleaseEvent (e);
 128
 129     e->accept ();
 130 }
 131
 132
 133 // COMPAT: Need to update InputMethod support.
 134 #if 0
 135
 136 // private virtual
 137 void kpView::imStartEvent (QIMEvent *e)
 138 {
 139 #if DEBUG_KP_VIEW && 1
 140     kDebug () << "kpView(" << objectName () << ")::imStartEvent";
 141 #endif
 142
 143     if (tool ())
 144         tool ()->imStartEvent (e);
 145     e->accept ();
 146 }
 147
 148 // private virtual
 149 void kpView::imComposeEvent (QIMEvent *e)
 150 {
 151 #if DEBUG_KP_VIEW && 1
 152     kDebug () << "kpView(" << objectName () << ")::imComposeEvent";
 153 #endif
 154
 155     if (tool ())
 156         tool ()->imComposeEvent (e);
 157     e->accept ();
 158 }
 159
 160 // private virtual
 161 void kpView::imEndEvent (QIMEvent *e)
 162 {
 163 #if DEBUG_KP_VIEW && 1
 164     kDebug () << "kpView(" << objectName () << ")::imEndEvent";
 165 #endif
 166
 167     if (tool ())
 168         tool ()->imEndEvent (e);
 169     e->accept ();
 170 }
 171
 172 #endif  // COMPAT
 173
 174
 175 // protected virtual [base QWidget]
 176 bool kpView::event (QEvent *e)
 177 {
 178 #if DEBUG_KP_VIEW
 179     kDebug () << "kpView::event() invoking kpTool::event()";
 180 #endif
 181     if (tool () && tool ()->viewEvent (e))
 182     {
 183     #if DEBUG_KP_VIEW
 184         kDebug () << "\tkpView::event() - tool said eat event, ret true";
 185     #endif
 186         return true;
 187     }
 188
 189 #if DEBUG_KP_VIEW
 190     kDebug () << "\tkpView::event() - no tool or said false, call QWidget::event()";
 191 #endif
 192     return QWidget::event (e);
 193 }
 194
 195
 196 // protected virtual [base QWidget]
 197 void kpView::focusInEvent (QFocusEvent *e)
 198 {
 199 #if DEBUG_KP_VIEW && 0
 200     kDebug () << "kpView(" << objectName () << ")::focusInEvent()";
 201 #endif
 202     if (tool ())
 203         tool ()->focusInEvent (e);
 204 }
 205
 206 // protected virtual [base QWidget]
 207 void kpView::focusOutEvent (QFocusEvent *e)
 208 {
 209 #if DEBUG_KP_VIEW && 0
 210     kDebug () << "kpView(" << objectName () << ")::focusOutEvent()";
 211 #endif
 212     if (tool ())
 213         tool ()->focusOutEvent (e);
 214 }
 215
 216
 217 // protected virtual [base QWidget]
 218 void kpView::enterEvent (QEvent *e)
 219 {
 220 #if DEBUG_KP_VIEW && 0
 221     kDebug () << "kpView(" << objectName () << ")::enterEvent()";
 222 #endif
 223
 224     // Don't call setHasMouse(true) as it displays the brush cursor (if
 225     // active) when dragging open a menu and then dragging
 226     // past the extents of the menu due to Qt sending us an EnterEvent.
 227     // We're already covered by MouseMoveEvent anyway.
 228     //
 229     // But disabling this causes a more serious problem: RMB on a text
 230     // box and Esc.  We have no other reliable way to determine if the
 231     // mouse is still above the view (user could have moved mouse out
 232     // while RMB menu was up) and hence the cursor is not updated.
 233     setHasMouse (true);
 234
 235     if (tool ())
 236         tool ()->enterEvent (e);
 237 }
 238
 239 // protected virtual [base QWidget]
 240 void kpView::leaveEvent (QEvent *e)
 241 {
 242 #if DEBUG_KP_VIEW && 0
 243     kDebug () << "kpView(" << objectName () << ")::leaveEvent()";
 244 #endif
 245
 246     setHasMouse (false);
 247     if (tool ())
 248         tool ()->leaveEvent (e);
 249 }
 250
 251
 252 // protected virtual [base QWidget]
 253 void kpView::dragEnterEvent (QDragEnterEvent *)
 254 {
 255 #if DEBUG_KP_VIEW && 1
 256     kDebug () << "kpView(" << objectName () << ")::dragEnterEvent()";
 257 #endif
 258
 259     setHasMouse (true);
 260 }
 261
 262 // protected virtual [base QWidget]
 263 void kpView::dragLeaveEvent (QDragLeaveEvent *)
 264 {
 265 #if DEBUG_KP_VIEW && 1
 266     kDebug () << "kpView(" << objectName () << ")::dragLeaveEvent";
 267 #endif
 268
 269     setHasMouse (false);
 270 }
 271
 272
 273 // protected virtual [base QWidget]
 274 void kpView::resizeEvent (QResizeEvent *e)
 275 {
 276 #if DEBUG_KP_VIEW && 1
 277     kDebug () << "kpView(" << objectName () << ")::resizeEvent("
 278                << e->size ()
 279                << " vs actual=" << size ()
 280                << ") old=" << e->oldSize () << endl;
 281 #endif
 282
 283     QWidget::resizeEvent (e);
 284
 285     emit sizeChanged (width (), height ());
 286     emit sizeChanged (size ());
 287 }