void kpTool::endInternal ()
{
if (m_began)
{
// before we can stop using the tool, we must stop the current drawing operation (if any)
if (hasBegunShape ())
endShapeInternal (m_currentPoint, QRect (m_startPoint, m_currentPoint).normalize ());
// call user virtual func
end ();
// clear leftover statusbar messages
setUserMessage ();
setUserShapePoints (currentPoint ());
// we've stopped using the tool...
m_began = false;
// and so we can't be drawing with it
m_beganDraw = false;
if (m_mainWindow)
{
kpToolToolBar *tb = m_mainWindow->toolToolBar ();
if (tb)
{
tb->hideAllToolWidgets ();
}
}
}
}
// protected
void kpAbstractImageSelectionTool::changeImageSelectionTransparency (
const QString &name,
const kpImageSelectionTransparency &newTrans,
const kpImageSelectionTransparency &oldTrans)
{
#if DEBUG_KP_TOOL_SELECTION
qCDebug(kpLogTools) << "CALL(" << name << ")";
#endif
kpSetOverrideCursorSaver cursorSaver (Qt::WaitCursor);
if (hasBegunShape ())
endShapeInternal ();
kpAbstractImageSelection *imageSel = document ()->imageSelection ();
if (imageSel->hasContent () && newTrans.isTransparent ())
environ ()->flashColorSimilarityToolBarItem ();
imageSel->setTransparency (newTrans);
// We _must_ add the command even if kpAbstractImageSelection::setTransparency()
// above did not change the selection transparency mask at all.
// Consider the following case:
//
// 0. Ensure that selection transparency is opaque and any
// color other than red is the background color. Ensure that
// the color similarity setting is 0.
//
// 1. Select a solid red rectangle and pull it off.
//
// 2. Switch to transparent and set red as the background color.
// [the selection is now invisible as red is the background
// color, which is the same as the contents of the selection]
//
// 3. Invert Colors.
// [the selection is now cyan, red is still the background color]
//
// 4. Change the background color to green.
// [the selection transparency mask does not change so the
// selection is still cyan; green is the background color]
//
// 5. Undo
//
// If no transparency command were added for Step 4., the Undo
// in Step 5. would take us straight to the state after Step 2.,
// where we would expect the red selection to be invisible. However,
// as the background color was changed to green in Step 4. and was not
// undone, the red selection is not invisible when it should be -- Undo
// has moved us to an incorrect state.
//
// KDE3: Copy this comment into the KDE 3 branch.
commandHistory ()->addCommand (new kpToolImageSelectionTransparencyCommand (
name,
newTrans, oldTrans,
environ ()->commandEnvironment ()),
false/*no exec*/);
}
void kpTool::mousePressEvent (QMouseEvent *e)
{
#if DEBUG_KP_TOOL && 1
kdDebug () << "kpTool::mousePressEvent pos=" << e->pos ()
<< " btnStateBefore=" << (int) e->state ()
<< " btnStateAfter=" << (int) e->stateAfter ()
<< " button=" << (int) e->button ()
<< " beganDraw=" << m_beganDraw << endl;
#endif
// state of all the buttons - not just the one that triggered the event (button())
Qt::ButtonState buttonState = e->stateAfter ();
if (m_mainWindow && e->button () == Qt::MidButton)
{
const QString text = QApplication::clipboard ()->text (QClipboard::Selection);
#if DEBUG_KP_TOOL && 1
kdDebug () << "\tMMB pasteText='" << text << "'" << endl;
#endif
if (!text.isEmpty ())
{
if (hasBegunShape ())
{
#if DEBUG_KP_TOOL && 1
kdDebug () << "\t\thasBegunShape - end" << endl;
#endif
endShapeInternal (m_currentPoint,
QRect (m_startPoint, m_currentPoint).normalize ());
}
if (viewUnderCursor ())
{
m_mainWindow->pasteTextAt (text,
viewUnderCursor ()->transformViewToDoc (e->pos ()),
true/*adjust topLeft so that cursor isn't
on top of resize handle*/);
}
return;
}
}
int mb = mouseButton (buttonState);
#if DEBUG_KP_TOOL && 1
kdDebug () << "\tmb=" << mb << " m_beganDraw=" << m_beganDraw << endl;
#endif
if (mb == -1 && !m_beganDraw) return; // ignore
if (m_beganDraw)
{
if (mb == -1 || mb != m_mouseButton)
{
#if DEBUG_KP_TOOL && 1
kdDebug () << "\tCancelling operation as " << mb << " == -1 or != " << m_mouseButton << endl;
#endif
kpView *view = viewUnderStartPoint ();
if (!view)
{
kdError () << "kpTool::mousePressEvent() cancel without a view under the start point!" << endl;
}
// if we get a mousePressEvent when we're drawing, then the other
// mouse button must have been pressed
m_currentPoint = view ? view->transformViewToDoc (e->pos ()) : QPoint (-1, -1);
m_currentViewPoint = view ? e->pos () : QPoint (-1, -1);
cancelShapeInternal ();
}
return;
}
kpView *view = viewUnderCursor ();
if (!view)
{
kdError () << "kpTool::mousePressEvent() without a view under the cursor!" << endl;
}
#if DEBUG_KP_TOOL && 1
if (view)
kdDebug () << "\tview=" << view->name () << endl;
#endif
// let user know what mouse button is being used for entire draw
m_mouseButton = mouseButton (buttonState);
m_shiftPressed = (buttonState & Qt::ShiftButton);
m_controlPressed = (buttonState & Qt::ControlButton);
m_altPressed = (buttonState & Qt::AltButton);
m_startPoint = m_currentPoint = view ? view->transformViewToDoc (e->pos ()) : QPoint (-1, -1);
m_currentViewPoint = view ? e->pos () : QPoint (-1, -1);
m_viewUnderStartPoint = view;
m_lastPoint = QPoint (-1, -1);
#if DEBUG_KP_TOOL && 1
kdDebug () << "\tBeginning draw @ " << m_currentPoint << endl;
#endif
beginDrawInternal ();
draw (m_currentPoint, m_lastPoint, QRect (m_currentPoint, m_currentPoint));
m_lastPoint = m_currentPoint;
}
