File indexing completed on 2024-04-28 04:20:21

 /*
    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
    Copyright (c) 2011 Martin Koller <kollix@aon.at>
    All rights reserved.
 
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:
 
    1. Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in the
       documentation and/or other materials provided with the distribution.
 
    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 #define DEBUG_STATUS_BAR (DEBUG_KP_MAIN_WINDOW && 0)
 
 
 #include "mainWindow/kpMainWindow.h"
 #include "kpMainWindowPrivate.h"
 
 #include <QLabel>
 #include <QStatusBar>
 #include <QString>
 
 #include "kpLogCategories.h"
 #include "kpDefs.h"
 #include "document/kpDocument.h"
 #include "tools/kpTool.h"
 #include "views/manager/kpViewManager.h"
 #include "kpViewScrollableContainer.h"
 #include "views/kpZoomedView.h"
 
 #include <KSqueezedTextLabel>
 #include <KLocalizedString>
 
 //---------------------------------------------------------------------
 
 // private
 void kpMainWindow::addPermanentStatusBarItem (int id, int maxTextLen)
 {
     QStatusBar *sb = statusBar ();
 
     QLabel *label = new QLabel (sb);
     label->setAlignment (Qt::AlignCenter);
     label->setFixedHeight (label->fontMetrics ().height () + 2);
     int maxWidth = label->fontMetrics().horizontalAdvance(QLatin1Char ('8')) * maxTextLen;
     // add some margins
     maxWidth += label->fontMetrics ().height ();
     label->setFixedWidth (maxWidth);
 
     // Permanent --> place on the right
     sb->addPermanentWidget (label);
 
     d->statusBarLabels.append (label);
     Q_ASSERT (d->statusBarLabels.at(id) == label);
 }
 
 //---------------------------------------------------------------------
 
 // private
 void kpMainWindow::createStatusBar ()
 {
     QStatusBar *sb = statusBar();
 
     // 9999 pixels "ought to be enough for anybody"
     const int maxDimenLength = 4;
 
     d->statusBarMessageLabel = new KSqueezedTextLabel(sb);
     // this is done to have the same height as the other labels in status bar; done like in kstatusbar.cpp
     d->statusBarMessageLabel->setFixedHeight(d->statusBarMessageLabel->fontMetrics().height() + 2);
     d->statusBarMessageLabel->setTextElideMode(Qt::ElideRight);  // this is the reason why we explicitly set a widget
     sb->addWidget(d->statusBarMessageLabel, 1/*stretch*/);
 
     addPermanentStatusBarItem (StatusBarItemShapePoints,
                                (maxDimenLength + 1/*,*/ + maxDimenLength) * 2 + 3/* - */);
     addPermanentStatusBarItem (StatusBarItemShapeSize,
                                (1/*+/-*/ + maxDimenLength) * 2 + 1/*x*/);
 
     QString numSample = i18n("%1 x %2", 5000, 5000);  // localized string; can e.g. be "5 000"
     addPermanentStatusBarItem(StatusBarItemDocSize, numSample.length());
 
     addPermanentStatusBarItem(StatusBarItemDocDepth, 5/*XXbpp*/);
 
     addPermanentStatusBarItem (StatusBarItemZoom,
                                5/*1600%*/);
 
     d->statusBarShapeLastPointsInitialised = false;
     d->statusBarShapeLastSizeInitialised = false;
     d->statusBarCreated = true;
 }
 
 //---------------------------------------------------------------------
 
 // private slot
 void kpMainWindow::setStatusBarMessage (const QString &message)
 {
 #if DEBUG_STATUS_BAR && 1
     qCDebug(kpLogMainWindow) << "kpMainWindow::setStatusBarMessage("
                << message
                << ") ok=" << d->statusBarCreated;
 #endif
 
     if (!d->statusBarCreated) {
         return;
     }
 
     d->statusBarMessageLabel->setText (message);
 }
 
 //---------------------------------------------------------------------
 
 // private slot
 void kpMainWindow::setStatusBarShapePoints (const QPoint &startPoint,
                                             const QPoint &endPoint)
 {
 #if DEBUG_STATUS_BAR && 0
     qCDebug(kpLogMainWindow) << "kpMainWindow::setStatusBarShapePoints("
                << startPoint << "," << endPoint
                << ") ok=" << d->statusBarCreated;
 #endif
 
     if (!d->statusBarCreated) {
         return;
     }
 
     if (d->statusBarShapeLastPointsInitialised &&
         startPoint == d->statusBarShapeLastStartPoint &&
         endPoint == d->statusBarShapeLastEndPoint)
     {
     #if DEBUG_STATUS_BAR && 0
         qCDebug(kpLogMainWindow) << "\tNOP";
     #endif
         return;
     }
 
     QLabel *statusBarLabel = d->statusBarLabels.at (StatusBarItemShapePoints);
     if (startPoint == KP_INVALID_POINT)
     {
         statusBarLabel->setText (QString());
     }
     else if (endPoint == KP_INVALID_POINT)
     {
         statusBarLabel->setText (i18n ("%1,%2",
                                       startPoint.x (),
                                       startPoint.y ()));
     }
     else
     {
         statusBarLabel->setText (i18n ("%1,%2 - %3,%4",
                                       startPoint.x (),
                                       startPoint.y (),
                                       endPoint.x (),
                                       endPoint.y ()));
     }
 
     d->statusBarShapeLastStartPoint = startPoint;
     d->statusBarShapeLastEndPoint = endPoint;
     d->statusBarShapeLastPointsInitialised = true;
 }
 
 //---------------------------------------------------------------------
 
 // private slot
 void kpMainWindow::setStatusBarShapeSize (const QSize &size)
 {
 #if DEBUG_STATUS_BAR && 0
     qCDebug(kpLogMainWindow) << "kpMainWindow::setStatusBarShapeSize("
                << size
                << ") ok=" << d->statusBarCreated;
 #endif
 
     if (!d->statusBarCreated) {
         return;
     }
 
     if (d->statusBarShapeLastSizeInitialised &&
         size == d->statusBarShapeLastSize)
     {
     #if DEBUG_STATUS_BAR && 0
         qCDebug(kpLogMainWindow) << "\tNOP";
     #endif
         return;
     }
 
     QLabel *statusBarLabel = d->statusBarLabels.at (StatusBarItemShapeSize);
     if (size == KP_INVALID_SIZE)
     {
         statusBarLabel->setText (QString());
     }
     else
     {
         statusBarLabel->setText (i18n ("%1x%2",
                                       size.width (),
                                       size.height ()));
     }
 
     d->statusBarShapeLastSize = size;
     d->statusBarShapeLastSizeInitialised = true;
 }
 
 //---------------------------------------------------------------------
 
 // private slot
 void kpMainWindow::setStatusBarDocSize (const QSize &size)
 {
 #if DEBUG_STATUS_BAR && 0
     qCDebug(kpLogMainWindow) << "kpMainWindow::setStatusBarDocSize("
                << size
                << ") ok=" << d->statusBarCreated;
 #endif
 
     if (!d->statusBarCreated) {
         return;
     }
 
     QLabel *statusBarLabel = d->statusBarLabels.at (StatusBarItemDocSize);
     if (size == KP_INVALID_SIZE)
     {
         statusBarLabel->setText (QString());
     }
     else
     {
         statusBarLabel->setText (i18n ("%1 x %2",
                                       size.width (),
                                       size.height ()));
     }
 }
 
 //---------------------------------------------------------------------
 
 // private slot
 void kpMainWindow::setStatusBarDocDepth (int depth)
 {
 #if DEBUG_STATUS_BAR && 0
     qCDebug(kpLogMainWindow) << "kpMainWindow::setStatusBarDocDepth("
                << depth
                << ") ok=" << d->statusBarCreated;
 #endif
 
     if (!d->statusBarCreated) {
         return;
     }
 
     QLabel *statusBarLabel = d->statusBarLabels.at (StatusBarItemDocDepth);
     if (depth <= 0)
     {
         statusBarLabel->setText (QString());
     }
     else
     {
         statusBarLabel->setText (i18n ("%1bpp", depth));
     }
 }
 
 //---------------------------------------------------------------------
 
 // private slot
 void kpMainWindow::setStatusBarZoom (int zoom)
 {
 #if DEBUG_STATUS_BAR && 0
     qCDebug(kpLogMainWindow) << "kpMainWindow::setStatusBarZoom("
                << zoom
                << ") ok=" << d->statusBarCreated;
 #endif
 
     if (!d->statusBarCreated) {
         return;
     }
 
     QLabel *statusBarLabel = d->statusBarLabels.at (StatusBarItemZoom);
     if (zoom <= 0)
     {
         statusBarLabel->setText (QString());
     }
     else
     {
         statusBarLabel->setText (i18n ("%1%", zoom));
     }
 }
 
 //---------------------------------------------------------------------
 
 void kpMainWindow::recalculateStatusBarMessage ()
 {
 #if DEBUG_STATUS_BAR && 1
     qCDebug(kpLogMainWindow) << "kpMainWindow::recalculateStatusBarMessage()";
 #endif
     QString scrollViewMessage = d->scrollView->statusMessage ();
 #if DEBUG_STATUS_BAR && 1
     qCDebug(kpLogMainWindow) << "\tscrollViewMessage=" << scrollViewMessage;
     qCDebug(kpLogMainWindow) << "\tresizing doc? " << !d->scrollView->newDocSize ().isEmpty ();
     qCDebug(kpLogMainWindow) << "\tviewUnderCursor? "
                << (d->viewManager && d->viewManager->viewUnderCursor ());
 #endif
 
     // HACK: To work around kpViewScrollableContainer's unreliable
     //       status messages (which in turn is due to Qt not updating
     //       QWidget::underMouse() on drags and we needing to hack around it)
     if (!scrollViewMessage.isEmpty () &&
         d->scrollView->newDocSize ().isEmpty () &&
         d->viewManager && d->viewManager->viewUnderCursor ())
     {
     #if DEBUG_STATUS_BAR && 1
         qCDebug(kpLogMainWindow) << "\t\tnot resizing & viewUnderCursor - message is wrong - clearing";
     #endif
         d->scrollView->blockSignals (true);
         d->scrollView->clearStatusMessage ();
         d->scrollView->blockSignals (false);
 
         scrollViewMessage.clear ();
     #if DEBUG_STATUS_BAR && 1
         qCDebug(kpLogMainWindow) << "\t\t\tdone";
     #endif
     }
 
     if (!scrollViewMessage.isEmpty ())
     {
         setStatusBarMessage (scrollViewMessage);
     }
     else
     {
         const kpTool *t = tool ();
         if (t)
         {
             setStatusBarMessage (t->userMessage ());
         }
         else
         {
             setStatusBarMessage ();
         }
     }
 }
 
 //---------------------------------------------------------------------
 
 // private slot
 void kpMainWindow::recalculateStatusBarShape ()
 {
 #if DEBUG_STATUS_BAR && 0
     qCDebug(kpLogMainWindow) << "kpMainWindow::recalculateStatusBarShape()";
 #endif
 
     QSize docResizeTo = d->scrollView->newDocSize ();
 #if DEBUG_STATUS_BAR && 0
     qCDebug(kpLogMainWindow) << "\tdocResizeTo=" << docResizeTo;
 #endif
     if (docResizeTo.isValid ())
     {
         const QPoint startPoint (d->document->width (), d->document->height ());
     #if DEBUG_STATUS_BAR && 0
         qCDebug(kpLogMainWindow) << "\thavedMovedFromOrgSize="
                    << d->scrollView->haveMovedFromOriginalDocSize ();
     #endif
         if (!d->scrollView->haveMovedFromOriginalDocSize ())
         {
             setStatusBarShapePoints (startPoint);
             setStatusBarShapeSize ();
         }
         else
         {
             const int newWidth = docResizeTo.width ();
             const int newHeight = docResizeTo.height ();
 
             setStatusBarShapePoints (startPoint, QPoint (newWidth, newHeight));
             const QPoint sizeAsPoint (QPoint (newWidth, newHeight) - startPoint);
             setStatusBarShapeSize (QSize (sizeAsPoint.x (), sizeAsPoint.y ()));
         }
     }
     else
     {
         const kpTool *t = tool ();
     #if DEBUG_STATUS_BAR && 0
         qCDebug(kpLogMainWindow) << "\ttool=" << t;
     #endif
         if (t)
         {
             setStatusBarShapePoints (t->userShapeStartPoint (),
                                      t->userShapeEndPoint ());
             setStatusBarShapeSize (t->userShapeSize ());
         }
         else
         {
             setStatusBarShapePoints ();
             setStatusBarShapeSize ();
         }
     }
 }
 
 //---------------------------------------------------------------------
 
 // private slot
 void kpMainWindow::recalculateStatusBar ()
 {
 #if DEBUG_STATUS_BAR && 1
     qCDebug(kpLogMainWindow) << "kpMainWindow::recalculateStatusBar() ok="
                << d->statusBarCreated;
 #endif
 
     if (!d->statusBarCreated) {
         return;
     }
 
     recalculateStatusBarMessage ();
     recalculateStatusBarShape ();
 
     if (d->document)
     {
         setStatusBarDocSize (QSize (d->document->width (), d->document->height ()));
         setStatusBarDocDepth (d->document->image ().depth ());
     }
     else
     {
         setStatusBarDocSize ();
         setStatusBarDocDepth ();
     }
 
     if (d->mainView)
     {
         setStatusBarZoom (d->mainView->zoomLevelX ());
     }
     else
     {
         setStatusBarZoom ();
     }
 }
 
 //---------------------------------------------------------------------