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koffice/kword/KWFrameViewManager.cpp

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/* This file is part of the KOffice project
* Copyright (C) 2005 Thomas Zander <zander@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; version 2.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "KWDocument.h"
#include "KWFrameViewManager.h"
#include <KWFrameView.h>
#include <KWFrame.h>
#include <KWFrameSet.h>
#include <kdebug.h>
#include <kcursor.h>
#include <tqcursor.h>
#include <tqtimer.h>
#include "tqpopupmenu.h"
#include <algorithm>
KWFrameViewManager::KWFrameViewManager() : TQObject() {
setName("KWFrameViewManager");
m_queueRequested = false;
m_blockEvents = false;
}
KWFrameViewManager::KWFrameViewManager(KWDocument *doc) {
m_queueRequested = false;
m_blockEvents = true;
TQPtrListIterator<KWFrameSet> frameSets = doc->framesetsIterator();
while(frameSets.current()) {
slotFrameSetAdded(*frameSets);
++frameSets;
}
m_blockEvents = false;
connect(doc, TQT_SIGNAL( sigFrameSetAdded(KWFrameSet*)), TQT_SLOT( slotFrameSetAdded(KWFrameSet*)));
connect(doc, TQT_SIGNAL( sigFrameSetRemoved(KWFrameSet*)), TQT_SLOT( slotFrameSetRemoved(KWFrameSet*)));
recalculateFrameCache();
}
KWFrameViewManager::~KWFrameViewManager() {
TQValueListIterator<FrameEvent *> events = m_frameEvents.begin();
while(events != m_frameEvents.end()) {
delete (*events);
++events;
}
}
void KWFrameViewManager::addKWFramesListener(KWFramesListener *listener) {
m_framesListener.append(listener);
}
void KWFrameViewManager::removeKWFramesListener(KWFramesListener *listener) {
m_framesListener.remove(listener);
}
void KWFrameViewManager::slotFrameSetAdded(KWFrameSet *fs) {
if(! m_blockEvents)
m_frameEvents.append(new FrameEvent(FrameEvent::FrameSetAdded, fs));
connect(fs, TQT_SIGNAL( sigFrameAdded(KWFrame*)), TQT_SLOT( slotFrameAdded(KWFrame *)));
connect(fs, TQT_SIGNAL( sigFrameRemoved(KWFrame*)), TQT_SLOT( slotFrameRemoved(KWFrame *)));
connect(fs, TQT_SIGNAL( sigNameChanged(KWFrameSet*)), TQT_SLOT( slotFrameSetRenamed(KWFrameSet *)));
TQPtrListIterator<KWFrame> frames = fs->frameIterator();
while(frames.current()) {
KWFrame *f = frames.current();
slotFrameAdded(f);
++frames;
}
requestFireEvents();
}
void KWFrameViewManager::slotFrameSetRemoved(KWFrameSet *fs) {
if(! m_blockEvents)
m_frameEvents.append(new FrameEvent(FrameEvent::FrameSetRemoved, fs));
disconnect(fs, TQT_SIGNAL( sigFrameAdded(KWFrame*)), this, TQT_SLOT( slotFrameAdded(KWFrame *)));
disconnect(fs, TQT_SIGNAL( sigFrameRemoved(KWFrame*)), this, TQT_SLOT( slotFrameRemoved(KWFrame *)));
disconnect(fs, TQT_SIGNAL( sigNameChanged(KWFrameSet*)), this, TQT_SLOT( slotFrameSetRenamed(KWFrameSet *)));
TQPtrListIterator<KWFrame> frames = fs->frameIterator();
while(frames.current()) {
KWFrame *f = frames.current();
slotFrameRemoved(f);
++frames;
}
requestFireEvents();
}
void KWFrameViewManager::slotFrameAdded(KWFrame *f) {
if(! m_blockEvents)
m_frameEvents.append(new FrameEvent(FrameEvent::FrameAdded, f));
m_frames.append(new KWFrameView(this, f));
requestFireEvents();
}
void KWFrameViewManager::slotFrameRemoved(KWFrame *f) {
if(! m_blockEvents)
m_frameEvents.append(new FrameEvent(FrameEvent::FrameRemoved, f));
TQValueListIterator<KWFrameView *> frames = m_frames.begin();
while(frames != m_frames.end()) {
KWFrameView *fv = *frames;
if(fv->frame() == f) {
if(fv->selected())
m_frameEvents.append(new FrameEvent(FrameEvent::FrameSelectionChanged));
m_frames.remove(frames);
delete fv;
break;
}
++frames;
}
requestFireEvents();
}
void KWFrameViewManager::slotFrameMoved(KWFrame *f, double previousYPosition) {
Q_UNUSED(previousYPosition); // to be used for the page caches to mark them dirty
if(! m_blockEvents)
m_frameEvents.append(new FrameEvent(FrameEvent::FrameMoved, f));
// TODO; KWFrameList update??
// update our caches..
requestFireEvents();
}
void KWFrameViewManager::slotFrameResized(KWFrame *f) {
if(! m_blockEvents)
m_frameEvents.append(new FrameEvent(FrameEvent::FrameResized, f));
// update our caches..
requestFireEvents();
}
void KWFrameViewManager::slotFrameSelectionChanged() {
if(! m_blockEvents)
m_frameEvents.append(new FrameEvent(FrameEvent::FrameSelectionChanged));
// update our caches..
requestFireEvents();
}
void KWFrameViewManager::slotFrameSetRenamed(KWFrameSet *fs) {
if(! m_blockEvents)
m_frameEvents.append(new FrameEvent(FrameEvent::FrameSetRenamed, fs));
requestFireEvents();
}
void KWFrameViewManager::requestFireEvents() {
if(m_queueRequested && !m_blockEvents)
return;
m_queueRequested = true;
TQTimer::singleShot ( 0, this, TQT_SLOT(fireEvents()) );
}
void KWFrameViewManager::fireEvents() {
m_queueRequested = false;
if(m_frameEvents.isEmpty())
return;
recalculateFrameCache();
TQValueList<FrameEvent *> copy(m_frameEvents);
m_frameEvents.clear();
TQValueList<KWFrame*> resizedFrames;
TQValueList<KWFrame*> movedFrames;
TQValueList<KWFramesListener *> listenersCopy(m_framesListener);
bool selectionChangedFired=false;
TQValueListIterator<FrameEvent *> events = copy.begin();
while(events != copy.end()) {
FrameEvent *event = *events;
// emit based.
if(!selectionChangedFired && event->m_action == FrameEvent::FrameSelectionChanged) {
emit sigFrameSelectionChanged();
selectionChangedFired = true; // only fire ones.
} else if(event->m_action == FrameEvent::FrameSetRenamed) {
TQPtrListIterator<KWFrame> frames = event->m_frameSet->frameIterator();
for(;frames.current();++frames) {
if(view(frames.current())->selected()) {
emit sigFrameSetRenamed();
break;
}
}
} else if(event->m_action == FrameEvent::FrameResized) {
resizedFrames.append(event->m_frame);
} else if(event->m_action == FrameEvent::FrameMoved) {
movedFrames.append(event->m_frame);
}
// listener based
TQValueListIterator<KWFramesListener *> listeners = listenersCopy.begin();
while(listeners != listenersCopy.end()) {
if(event->m_action == FrameEvent::FrameRemoved)
(*listeners)->frameRemoved(event->m_frame);
else if(event->m_action == FrameEvent::FrameAdded)
(*listeners)->frameAdded(event->m_frame);
else if(event->m_action == FrameEvent::FrameSetRemoved)
(*listeners)->frameSetRemoved(event->m_frameSet);
else if(event->m_action == FrameEvent::FrameSetAdded)
(*listeners)->frameSetAdded(event->m_frameSet);
++listeners;
}
delete event;
events = copy.remove(events);
}
if(resizedFrames.count() > 0)
emit sigFrameResized(resizedFrames);
if(movedFrames.count() > 0)
emit sigFrameMoved(movedFrames);
}
void KWFrameViewManager::recalculateFrameCache() {
// TODO :) design and implement a cache...
// list of frames sorted on y-coord, with an additional list containing a jump-index
kdDebug(31001) << "recalculateFrameCache " << m_frames.count() << " frames are currently registred" << endl;
}
KWFrameView *KWFrameViewManager::view(const KoPoint &point, SelectionType selected, bool borderOnly) const {
TQValueVector<KWFrameView*> framesThatAreHit = framesAt(point, borderOnly);
bool foundCycleFrame = false;
TQValueVector<KWFrameView*>::iterator sortedFrames = framesThatAreHit.begin();
while(sortedFrames != framesThatAreHit.end()) {
if(selected == nextUnselected) {
if((*sortedFrames)->selected() )
foundCycleFrame = true;
else if(foundCycleFrame && !(*sortedFrames)->selected() )
return *sortedFrames;
}
else if(selected == frameOnTop)
return *sortedFrames;
else { // not cycle, so simply a selected check.
if((*sortedFrames)->selected() == (selected == KWFrameViewManager::selected ))
return *sortedFrames;
}
++sortedFrames;
}
if(selected == nextUnselected && framesThatAreHit.count() > 0)
return framesThatAreHit[0];
return 0;
}
TQValueVector<KWFrameView*> KWFrameViewManager::framesAt(const KoPoint &point, bool borderOnly) const {
TQValueVector<KWFrameView*> framesThatAreHit;
// This is probably the slowest and worst way to do it, mark this for optimalisation!
for(TQValueListConstIterator<KWFrameView*> frames = m_frames.begin();
frames != m_frames.end(); ++frames) {
if(! (*frames)->frame()->frameSet()->isVisible())
continue;
if(borderOnly && (*frames)->isBorderHit(point) ||
!borderOnly && (*frames)->tqcontains(point))
framesThatAreHit.append(*frames);
}
// sort on z-ordering; top on first
std::sort(framesThatAreHit.begin(), framesThatAreHit.end(), compareFrameViewZOrder);
return framesThatAreHit;
}
KWFrameView *KWFrameViewManager::view(const KWFrame *frame) const {
// This is probably the slowest and worst way to do it, mark this for optimalisation!
TQValueListConstIterator<KWFrameView*> frames = m_frames.begin();
while(frames != m_frames.end()) {
if((*frames)->frame() == frame)
return *frames;
++frames;
}
return 0;
}
bool KWFrameViewManager::compareFrameViewZOrder(KWFrameView *f1, KWFrameView *f2) {
return f1->frame()->zOrder() >= f2->frame()->zOrder();
}
TQCursor KWFrameViewManager::mouseCursor( const KoPoint &point, int keyState ) const {
KWFrameView *view = 0;
TQValueVector<KWFrameView*> framesThatAreHit = framesAt(point);
TQValueVector<KWFrameView*>::iterator sortedFrames = framesThatAreHit.begin();
MouseMeaning meaning;
while(sortedFrames != framesThatAreHit.end()) {
meaning = (*sortedFrames)->mouseMeaning(point, keyState);
if(meaning != MEANING_NONE) {
view = (*sortedFrames);
break;
}
++sortedFrames;
}
if(view == 0)
return TQCursor(); // default arrow tqshape
KWFrameSet*frameSet = view->frame()->frameSet();
switch ( meaning ) {
case MEANING_NONE:
return TQt::ibeamCursor; // default cursor in margins
case MEANING_MOUSE_INSIDE:
return TQCursor(); // default arrow tqshape
case MEANING_MOUSE_INSIDE_TEXT:
return TQt::ibeamCursor;
case MEANING_MOUSE_OVER_LINK:
return TQt::PointingHandCursor;
case MEANING_MOUSE_OVER_FOOTNOTE:
return TQt::PointingHandCursor;
case MEANING_MOUSE_MOVE:
return TQt::sizeAllCursor;
case MEANING_MOUSE_SELECT:
return KCursor::handCursor();
case MEANING_ACTIVATE_PART:
return KCursor::handCursor();
case MEANING_TOPLEFT:
case MEANING_BOTTOMRIGHT:
return TQt::sizeFDiagCursor;
case MEANING_LEFT:
case MEANING_RIGHT:
return TQt::sizeHorCursor;
case MEANING_BOTTOMLEFT:
case MEANING_TOPRIGHT:
return TQt::sizeBDiagCursor;
case MEANING_TOP:
case MEANING_BOTTOM:
if ( frameSet->isProtectSize() || frameSet->isMainFrameset())
return TQt::forbiddenCursor;
return TQt::sizeVerCursor;
case MEANING_RESIZE_COLUMN:
return TQt::splitHCursor;
case MEANING_RESIZE_ROW:
return TQt::splitVCursor;
case MEANING_SELECT_RANGE:
case MEANING_SELECT_COLUMN:
case MEANING_SELECT_ROW:
case MEANING_FORBIDDEN:
return KCursor::handCursor();
}
return TQCursor(); // default arrow tqshape
}
MouseMeaning KWFrameViewManager::mouseMeaning( const KoPoint &point, int keyState) const {
TQValueVector<KWFrameView*> framesThatAreHit = framesAt(point);
TQValueVector<KWFrameView*>::iterator sortedFrames = framesThatAreHit.begin();
while(sortedFrames != framesThatAreHit.end()) {
MouseMeaning answer = (*sortedFrames)->mouseMeaning(point, keyState);
if(answer != MEANING_NONE) {
//kdDebug() << "mouseMeaning at " << point << " is " << answer << endl;
return answer;
}
++sortedFrames;
}
return MEANING_NONE;
}
TQValueList<KWFrameView*> KWFrameViewManager::selectedFrames() const {
TQValueList<KWFrameView*> selectedFrames;
TQValueList<KWFrameView*>::const_iterator frames = m_frames.begin();
for(; frames != m_frames.end(); ++frames )
if( (*frames)->selected() )
selectedFrames.append( *frames );
return selectedFrames;
}
KWFrameView* KWFrameViewManager::selectedFrame() const {
TQValueList<KWFrameView*>::const_iterator frames = m_frames.begin();
for(; frames != m_frames.end(); ++frames )
if( (*frames)->selected() )
return *frames;
return 0;
}
void KWFrameViewManager::showPopup( const KoPoint &point, KWView *view, int keyState, const TQPoint &popupPoint) const {
TQValueVector<KWFrameView*> framesThatAreHit = framesAt(point);
if(framesThatAreHit.count() == 0) {
view->popupMenu("action_popup")->popup(popupPoint);
return;
}
if(keyState == TQt::ControlButton) {
// show the border popup of the top most frame.
framesThatAreHit[0]->showPopup(framesThatAreHit[0]->frame()->topLeft(), view, popupPoint);
return;
}
TQValueVector<KWFrameView*>::iterator iter = framesThatAreHit.begin();
while(iter != framesThatAreHit.end()) {
if( (*iter)->selected() && keyState == TQt::ControlButton ) {
(*iter)->showPopup(point, view, popupPoint);
return;
}
++iter;
}
framesThatAreHit[0]->showPopup(point, view, popupPoint);
}
void KWFrameViewManager::selectFrames(const KoPoint &point, int keyState, bool leftClick) {
MouseMeaning mm = mouseMeaning(point, keyState);
bool multiSelect = mm == MEANING_MOUSE_SELECT || ( keyState & TQt::ControlButton );
SelectionType se = frameOnTop;
if(leftClick && multiSelect)
se = nextUnselected;
KWFrameView *toBeSelected = view(point, se, !multiSelect);
//kdDebug() << "KWFrameViewManager::selectFrames" << point << " got: " << toBeSelected << endl;
if(toBeSelected == 0 || (keyState & TQt::ControlButton) == 0 || ( keyState & TQt::ShiftButton ) &&
!(leftClick && (mm == MEANING_TOPLEFT || mm == MEANING_TOPRIGHT || mm == MEANING_TOP ||
mm == MEANING_LEFT || mm == MEANING_RIGHT || mm == MEANING_MOUSE_MOVE ||
mm == MEANING_BOTTOMLEFT || mm == MEANING_BOTTOM || mm == MEANING_BOTTOMRIGHT))) {
// unselect all
for(TQValueListConstIterator<KWFrameView*> frames = m_frames.begin();
frames != m_frames.end(); ++frames) {
(*frames)->setSelected(false);
}
}
if(toBeSelected == 0)
return;
toBeSelected->setSelected(true, mm);
slotFrameSelectionChanged();
}
// ********** FrameEvent **** */
KWFrameViewManager::FrameEvent::FrameEvent (ActionType action) {
m_action = action;
}
KWFrameViewManager::FrameEvent::FrameEvent (ActionType action, KWFrame *frame) {
m_action = action;
m_frame = frame;
}
KWFrameViewManager::FrameEvent::FrameEvent (ActionType action, KWFrameSet *frameSet) {
m_action = action;
m_frameSet = frameSet;
}
#include "KWFrameViewManager.moc"