kolourpaint/kpThumbnail.cpp

   1
   2 /*
   3    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
   4    All rights reserved.
   5
   6    Redistribution and use in source and binary forms, with or without
   7    modification, are permitted provided that the following conditions
   8    are met:
   9
  10    1. Redistributions of source code must retain the above copyright
  11       notice, this list of conditions and the following disclaimer.
  12    2. Redistributions in binary form must reproduce the above copyright
  13       notice, this list of conditions and the following disclaimer in the
  14       documentation and/or other materials provided with the distribution.
  15
  16    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 */
  27
  28
  29 #define DEBUG_KP_THUMBNAIL 0
  30
  31
  32 #include <kpThumbnail.h>
  33
  34 #include <QAction>
  35 #include <QLayout>
  36
  37 #include <kdebug.h>
  38 #include <klocale.h>
  39
  40 #include <kpDefs.h>
  41 #include <kpDocument.h>
  42 #include <kpMainWindow.h>
  43 #include <kpThumbnailView.h>
  44 #include <kpTool.h>
  45
  46
  47 struct kpThumbnailPrivate
  48 {
  49     kpMainWindow *mainWindow;
  50     kpThumbnailView *view;
  51     QHBoxLayout *lay;
  52 };
  53
  54 kpThumbnail::kpThumbnail (kpMainWindow *parent)
  55     : kpSubWindow (parent),
  56       d (new kpThumbnailPrivate ())
  57 {
  58     Q_ASSERT (parent);
  59
  60     d->mainWindow = parent;
  61     d->view = 0;
  62     d->lay = new QHBoxLayout (this);
  63
  64
  65     setMinimumSize (64, 64);
  66
  67
  68     updateCaption ();
  69 }
  70
  71 kpThumbnail::~kpThumbnail ()
  72 {
  73     delete d;
  74 }
  75
  76
  77 // public
  78 kpThumbnailView *kpThumbnail::view () const
  79 {
  80     return d->view;
  81 }
  82
  83 // public
  84 void kpThumbnail::setView (kpThumbnailView *view)
  85 {
  86 #if DEBUG_KP_THUMBNAIL
  87     kDebug () << "kpThumbnail::setView(" << view << ")";
  88 #endif
  89
  90     if (d->view == view)
  91         return;
  92
  93
  94     if (d->view)
  95     {
  96         disconnect (d->view, SIGNAL (destroyed ()),
  97                     this, SLOT (slotViewDestroyed ()));
  98         disconnect (d->view, SIGNAL (zoomLevelChanged (int, int)),
  99                     this, SLOT (updateCaption ()));
 100
 101         d->lay->removeWidget (d->view);
 102     }
 103
 104     d->view = view;
 105
 106     if (d->view)
 107     {
 108         connect (d->view, SIGNAL (destroyed ()),
 109                  this, SLOT (slotViewDestroyed ()));
 110         connect (d->view, SIGNAL (zoomLevelChanged (int, int)),
 111                  this, SLOT (updateCaption ()));
 112
 113         Q_ASSERT (d->view->parent () == this);
 114         d->lay->addWidget (d->view, Qt::AlignCenter);
 115
 116         d->view->show ();
 117     }
 118
 119     updateCaption ();
 120 }
 121
 122
 123 // public slot
 124 void kpThumbnail::updateCaption ()
 125 {
 126     setWindowTitle (view () ? view ()->caption () : i18n ("Thumbnail"));
 127 }
 128
 129
 130 // protected slot
 131 void kpThumbnail::slotViewDestroyed ()
 132 {
 133 #if DEBUG_KP_THUMBNAIL
 134     kDebug () << "kpThumbnail::slotViewDestroyed()";
 135 #endif
 136
 137     d->view = 0;
 138     updateCaption ();
 139 }
 140
 141
 142 // protected virtual [base QWidget]
 143 void kpThumbnail::resizeEvent (QResizeEvent *e)
 144 {
 145 #if DEBUG_KP_THUMBNAIL
 146     kDebug () << "kpThumbnail::resizeEvent(" << width ()
 147                << "," << height () << ")" << endl;
 148 #endif
 149
 150     QWidget::resizeEvent (e);
 151
 152     // updateVariableZoom ();  TODO: is below a good idea since this commented out?
 153
 154     if (d->mainWindow)
 155     {
 156         d->mainWindow->notifyThumbnailGeometryChanged ();
 157
 158         if (d->mainWindow->tool ())
 159             d->mainWindow->tool ()->somethingBelowTheCursorChanged ();
 160     }
 161 }
 162
 163 // protected virtual [base QWidget]
 164 void kpThumbnail::moveEvent (QMoveEvent * /*e*/)
 165 {
 166     if (d->mainWindow)
 167         d->mainWindow->notifyThumbnailGeometryChanged ();
 168 }
 169
 170 // protected virtual [base QWidget]
 171 void kpThumbnail::closeEvent (QCloseEvent *e)
 172 {
 173     QWidget::closeEvent (e);
 174
 175     emit windowClosed ();
 176 }
 177
 178
 179 #include <kpThumbnail.moc>