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767 lines
19 KiB
767 lines
19 KiB
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/*
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Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define DEBUG_KP_VIEW_MANAGER 0
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#include <kpviewmanager.h>
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#include <tqapplication.h>
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#include <tqtimer.h>
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#include <kdebug.h>
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#include <kpdefs.h>
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#include <kpdocument.h>
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#include <kpmainwindow.h>
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#include <kpselection.h>
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#include <kptemppixmap.h>
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#include <kptool.h>
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#include <kpview.h>
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kpViewManager::kpViewManager (kpMainWindow *mainWindow)
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: m_textCursorBlinkTimer (0),
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m_textCursorRow (-1),
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m_textCursorCol (-1),
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m_textCursorBlinkState (true),
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m_mainWindow (mainWindow),
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m_tempPixmap (0),
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m_viewUnderCursor (0),
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m_selectionBorderVisible (false),
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m_selectionBorderFinished (false)
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{
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m_queueUpdatesCounter = m_fastUpdatesCounter = 0;
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}
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// private
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kpDocument *kpViewManager::document () const
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{
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return m_mainWindow ? m_mainWindow->document () : 0;
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}
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kpViewManager::~kpViewManager ()
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{
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unregisterAllViews ();
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delete m_tempPixmap; m_tempPixmap = 0;
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}
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void kpViewManager::registerView (kpView *view)
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::registerView (" << view << ")" << endl;
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#endif
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if (view && m_views.findRef (view) < 0)
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "\tadded view" << endl;
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#endif
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view->setCursor (m_cursor);
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m_views.append (view);
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}
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else
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "\tignored register view attempt" << endl;
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#endif
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}
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}
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void kpViewManager::unregisterView (kpView *view)
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{
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if (view)
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{
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if (view == m_viewUnderCursor)
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m_viewUnderCursor = 0;
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view->unsetCursor ();
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m_views.removeRef (view);
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}
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}
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void kpViewManager::unregisterAllViews ()
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{
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// no autoDelete
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m_views.clear ();
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}
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// public
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const kpTempPixmap *kpViewManager::tempPixmap () const
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{
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return m_tempPixmap;
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}
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// public
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void kpViewManager::setTempPixmap (const kpTempPixmap &tempPixmap)
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{
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#if DEBUG_KP_VIEW_MANAGER
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kdDebug () << "kpViewManager::setTempPixmap(isBrush="
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<< tempPixmap.isBrush ()
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<< ",topLeft=" << tempPixmap.topLeft ()
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<< ",pixmap.rect=" << tempPixmap.pixmap ().rect ()
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<< ")" << endl;
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#endif
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TQRect oldRect;
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if (m_tempPixmap)
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{
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oldRect = m_tempPixmap->rect ();
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delete m_tempPixmap;
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m_tempPixmap = 0;
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}
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m_tempPixmap = new kpTempPixmap (tempPixmap);
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setQueueUpdates ();
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if (oldRect.isValid ())
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updateViews (oldRect);
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updateViews (m_tempPixmap->rect ());
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restoreQueueUpdates ();
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}
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// public
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void kpViewManager::invalidateTempPixmap ()
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{
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if (!m_tempPixmap)
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return;
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TQRect oldRect = m_tempPixmap->rect ();
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delete m_tempPixmap;
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m_tempPixmap = 0;
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updateViews (oldRect);
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}
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// public
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bool kpViewManager::selectionBorderVisible () const
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{
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return m_selectionBorderVisible;
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}
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// public
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void kpViewManager::setSelectionBorderVisible (bool yes)
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{
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if (m_selectionBorderVisible == yes)
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return;
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m_selectionBorderVisible = yes;
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if (document () && document ()->selection ())
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updateViews (document ()->selection ()->boundingRect ());
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}
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// public
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bool kpViewManager::selectionBorderFinished () const
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{
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return m_selectionBorderFinished;
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}
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// public
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void kpViewManager::setSelectionBorderFinished (bool yes)
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{
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if (m_selectionBorderFinished == yes)
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return;
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m_selectionBorderFinished = yes;
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if (document () && document ()->selection ())
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updateViews (document ()->selection ()->boundingRect ());
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}
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bool kpViewManager::textCursorEnabled () const
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{
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return (bool) m_textCursorBlinkTimer;
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}
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void kpViewManager::setTextCursorEnabled (bool yes)
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::setTextCursorEnabled(" << yes << ")" << endl;
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#endif
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if (yes == textCursorEnabled ())
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return;
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delete m_textCursorBlinkTimer;
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m_textCursorBlinkTimer = 0;
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setFastUpdates ();
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setQueueUpdates ();
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m_textCursorBlinkState = true;
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if (yes)
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{
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m_textCursorBlinkTimer = new TQTimer (this);
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connect (m_textCursorBlinkTimer, TQT_SIGNAL (timeout ()),
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this, TQT_SLOT (slotTextCursorBlink ()));
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slotTextCursorBlink ();
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}
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// TODO: What if !yes - shouldn't it clear the cursor?
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restoreQueueUpdates ();
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restoreFastUpdates ();
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}
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int kpViewManager::textCursorRow () const
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{
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bool handledErrors = false;
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if (m_mainWindow)
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{
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kpDocument *doc = m_mainWindow->document ();
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if (doc)
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{
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kpSelection *sel = doc->selection ();
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if (sel && sel->isText ())
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{
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if (m_textCursorRow >= (int) sel->textLines ().size ())
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::textCursorRow() row="
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<< m_textCursorRow
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<< endl;
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#endif
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(const_cast <kpViewManager *> (this))->m_textCursorRow =
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sel->textLines ().size () - 1;
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}
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handledErrors = true;
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}
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}
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}
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if (!handledErrors)
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::textCursorRow() no mw, doc or text sel" << endl;
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#endif
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(const_cast <kpViewManager *> (this))->m_textCursorRow = -1;
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}
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return m_textCursorRow;
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}
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int kpViewManager::textCursorCol () const
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{
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int row = textCursorRow ();
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if (row < 0)
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return -1;
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bool handledErrors = false;
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if (m_mainWindow)
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{
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kpDocument *doc = m_mainWindow->document ();
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if (doc)
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{
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kpSelection *sel = doc->selection ();
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if (sel && sel->isText ())
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{
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if (m_textCursorCol > (int) sel->textLines () [row].length ())
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::textCursorRow() col="
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<< m_textCursorCol
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<< endl;
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#endif
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(const_cast <kpViewManager *> (this))->m_textCursorCol =
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sel->textLines () [row].length ();
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}
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handledErrors = true;
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}
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}
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}
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if (!handledErrors)
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::textCursorCol() no mw, doc or text sel" << endl;
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#endif
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(const_cast <kpViewManager *> (this))->m_textCursorCol = -1;
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}
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return m_textCursorCol;
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}
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void kpViewManager::setTextCursorPosition (int row, int col, bool isUpdateMicroFocusHint)
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{
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if (row == m_textCursorRow && col == m_textCursorCol)
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return;
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setFastUpdates ();
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setQueueUpdates ();
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m_textCursorBlinkState = false;
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updateTextCursor ();
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m_textCursorRow = row;
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m_textCursorCol = col;
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m_textCursorBlinkState = true;
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updateTextCursor ();
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restoreQueueUpdates ();
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restoreFastUpdates ();
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if (isUpdateMicroFocusHint)
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{
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kpDocument *doc = m_mainWindow->document ();
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if (!doc)
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return;
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kpSelection *sel = doc->selection ();
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if (!sel || !sel->isText ())
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return;
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if (m_viewUnderCursor)
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{
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// TODO: Fix code duplication: kpViewManager::{setTextCursorPosition,updateTextCursor}() & kpView::paintEventDrawSelection()
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TQPoint topLeft = sel->pointForTextRowCol (m_textCursorRow, m_textCursorCol);
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if (topLeft != KP_INVALID_POINT)
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{
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// TODO: I think you need to consider zooming e.g. try editing
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// text at 800% or with focus set to the thumbnail.
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// kpSelection/kpDocument works fully in unzoomed
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// coordinates unlike the view (which is zoomed and can
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// change size).
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//
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// To fix it here, I think you should call
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// m_viewUnderCursor->transformDocToView(TQRect). However,
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// the rest of the InputMethod support still needs to
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// audited for this.
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//
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// [Bug #27]
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m_viewUnderCursor->updateMicroFocusHint(TQRect (topLeft.x (), topLeft.y (), 1, sel->textStyle ().fontMetrics ().height ()));
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}
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}
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}
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}
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bool kpViewManager::textCursorBlinkState () const
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{
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return m_textCursorBlinkState;
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}
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void kpViewManager::setTextCursorBlinkState (bool on)
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{
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if (on == m_textCursorBlinkState)
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return;
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m_textCursorBlinkState = on;
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updateTextCursor ();
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}
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// protected
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void kpViewManager::updateTextCursor ()
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{
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#if DEBUG_KP_VIEW_MANAGER && 0
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kdDebug () << "kpViewManager::updateTextCursor()" << endl;
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#endif
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if (!m_mainWindow)
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return;
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kpDocument *doc = m_mainWindow->document ();
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if (!doc)
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return;
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kpSelection *sel = doc->selection ();
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if (!sel || !sel->isText ())
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return;
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// TODO: Fix code duplication: kpViewManager::{setTextCursorPosition,updateTextCursor}() & kpView::paintEventDrawSelection()
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TQPoint topLeft = sel->pointForTextRowCol (m_textCursorRow, m_textCursorCol);
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if (topLeft != KP_INVALID_POINT)
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{
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setFastUpdates ();
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updateViews (TQRect (topLeft.x (), topLeft.y (), 1, sel->textStyle ().fontMetrics ().height ()));
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restoreFastUpdates ();
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}
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}
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// protected slot
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void kpViewManager::slotTextCursorBlink ()
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{
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#if DEBUG_KP_VIEW_MANAGER && 0
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kdDebug () << "kpViewManager::slotTextCursorBlink() cursorBlinkState="
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<< m_textCursorBlinkState << endl;
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#endif
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if (m_textCursorBlinkTimer)
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{
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m_textCursorBlinkTimer->start (TQApplication::cursorFlashTime () / 2,
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true/*single shot*/);
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}
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updateTextCursor ();
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m_textCursorBlinkState = !m_textCursorBlinkState;
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}
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void kpViewManager::setCursor (const TQCursor &cursor)
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{
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for (TQPtrList <kpView>::const_iterator it = m_views.begin ();
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it != m_views.end ();
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it++)
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{
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(*it)->setCursor (cursor);
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}
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m_cursor = cursor;
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}
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void kpViewManager::unsetCursor ()
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{
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for (TQPtrList <kpView>::const_iterator it = m_views.begin ();
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it != m_views.end ();
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it++)
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{
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(*it)->unsetCursor ();
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}
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m_cursor = TQCursor ();
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}
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kpView *kpViewManager::viewUnderCursor (bool usingTQt) const
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{
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if (!usingTQt)
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{
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kpViewManager *nonConstThis = const_cast <kpViewManager *> (this);
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if (m_viewUnderCursor && nonConstThis->m_views.findRef (m_viewUnderCursor) < 0)
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{
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kdError () << "kpViewManager::viewUnderCursor(): invalid view" << endl;
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nonConstThis->m_viewUnderCursor = 0;
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}
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return m_viewUnderCursor;
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}
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else
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{
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for (TQPtrList <kpView>::const_iterator it = m_views.begin ();
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it != m_views.end ();
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it++)
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{
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if ((*it)->hasMouse ())
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return (*it);
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}
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return 0;
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}
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}
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void kpViewManager::setViewUnderCursor (kpView *view)
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::setViewUnderCursor ("
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<< (view ? view->name () : "(none)") << ")"
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<< " old=" << (m_viewUnderCursor ? m_viewUnderCursor->name () : "(none)")
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<< endl;
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#endif
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if (view == m_viewUnderCursor)
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return;
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m_viewUnderCursor = view;
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if (!m_viewUnderCursor)
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{
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// Hide the brush if the mouse cursor just left the view
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if (m_tempPixmap && m_tempPixmap->isBrush ())
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "\thiding brush pixmap since cursor left view" << endl;
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#endif
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updateViews (m_tempPixmap->rect ());
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}
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}
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else
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{
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if (m_mainWindow && m_mainWindow->tool ())
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{
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "\tnotify tool that something changed below cursor" << endl;
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#endif
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m_mainWindow->tool ()->somethingBelowTheCursorChanged ();
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}
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}
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}
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// public
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kpView *kpViewManager::activeView () const
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{
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for (TQPtrList <kpView>::const_iterator it = m_views.begin ();
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it != m_views.end ();
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it++)
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{
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if ((*it)->isActiveWindow ())
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return (*it);
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}
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return 0;
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}
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// public
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bool kpViewManager::queueUpdates () const
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{
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return (m_queueUpdatesCounter > 0);
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}
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// public
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void kpViewManager::setQueueUpdates ()
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{
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m_queueUpdatesCounter++;
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::setQueueUpdates() counter="
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<< m_queueUpdatesCounter << endl;
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#endif
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}
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// public
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void kpViewManager::restoreQueueUpdates ()
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{
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m_queueUpdatesCounter--;
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#if DEBUG_KP_VIEW_MANAGER && 1
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kdDebug () << "kpViewManager::restoreQueueUpdates() counter="
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<< m_queueUpdatesCounter << endl;
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#endif
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if (m_queueUpdatesCounter < 0)
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{
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kdError () << "kpViewManager::restoreQueueUpdates() counter="
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<< m_queueUpdatesCounter;
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}
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if (m_queueUpdatesCounter <= 0)
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{
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for (TQPtrList <kpView>::const_iterator it = m_views.begin ();
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it != m_views.end ();
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it++)
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{
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(*it)->updateQueuedArea ();
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}
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}
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}
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// public
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bool kpViewManager::fastUpdates () const
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{
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|
return (m_fastUpdatesCounter > 0);
|
|
}
|
|
|
|
// public
|
|
void kpViewManager::setFastUpdates ()
|
|
{
|
|
m_fastUpdatesCounter++;
|
|
#if DEBUG_KP_VIEW_MANAGER && 0
|
|
kdDebug () << "kpViewManager::setFastUpdates() counter="
|
|
<< m_fastUpdatesCounter << endl;
|
|
#endif
|
|
}
|
|
|
|
// public
|
|
void kpViewManager::restoreFastUpdates ()
|
|
{
|
|
m_fastUpdatesCounter--;
|
|
#if DEBUG_KP_VIEW_MANAGER && 0
|
|
kdDebug () << "kpViewManager::restoreFastUpdates() counter="
|
|
<< m_fastUpdatesCounter << endl;
|
|
#endif
|
|
if (m_fastUpdatesCounter < 0)
|
|
{
|
|
kdError () << "kpViewManager::restoreFastUpdates() counter="
|
|
<< m_fastUpdatesCounter;
|
|
}
|
|
}
|
|
|
|
|
|
void kpViewManager::updateView (kpView *v)
|
|
{
|
|
updateView (v, TQRect (0, 0, v->width (), v->height ()));
|
|
}
|
|
|
|
void kpViewManager::updateView (kpView *v, const TQRect &viewRect)
|
|
{
|
|
if (!queueUpdates ())
|
|
{
|
|
if (fastUpdates ())
|
|
v->tqrepaint (viewRect, false/*no erase*/);
|
|
else
|
|
v->update (viewRect);
|
|
}
|
|
else
|
|
v->addToQueuedArea (viewRect);
|
|
}
|
|
|
|
void kpViewManager::updateView (kpView *v, int x, int y, int w, int h)
|
|
{
|
|
updateView (v, TQRect (x, y, w, h));
|
|
}
|
|
|
|
void kpViewManager::updateView (kpView *v, const TQRegion &viewRegion)
|
|
{
|
|
if (!queueUpdates ())
|
|
{
|
|
if (fastUpdates ())
|
|
v->tqrepaint (viewRegion, false/*no erase*/);
|
|
else
|
|
v->update (viewRegion.boundingRect ());
|
|
}
|
|
else
|
|
v->addToQueuedArea (viewRegion);
|
|
}
|
|
|
|
void kpViewManager::updateViewRectangleEdges (kpView *v, const TQRect &viewRect)
|
|
{
|
|
if (viewRect.height () <= 0 || viewRect.width () <= 0)
|
|
return;
|
|
|
|
// Top line
|
|
updateView (v, TQRect (viewRect.x (), viewRect.y (),
|
|
viewRect.width (), 1));
|
|
|
|
if (viewRect.height () >= 2)
|
|
{
|
|
// Bottom line
|
|
updateView (v, TQRect (viewRect.x (), viewRect.bottom (),
|
|
viewRect.width (), 1));
|
|
|
|
if (viewRect.height () > 2)
|
|
{
|
|
// Left line
|
|
updateView (v, TQRect (viewRect.x (), viewRect.y () + 1,
|
|
1, viewRect.height () - 2));
|
|
|
|
if (viewRect.width () >= 2)
|
|
{
|
|
// Right line
|
|
updateView (v, TQRect (viewRect.right (), viewRect.y () + 1,
|
|
1, viewRect.height () - 2));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void kpViewManager::updateViews ()
|
|
{
|
|
kpDocument *doc = document ();
|
|
if (doc)
|
|
updateViews (TQRect (0, 0, doc->width (), doc->height ()));
|
|
}
|
|
|
|
void kpViewManager::updateViews (const TQRect &docRect)
|
|
{
|
|
#if DEBUG_KP_VIEW_MANAGER && 0
|
|
kdDebug () << "kpViewManager::updateViews (" << docRect << ")" << endl;
|
|
#endif
|
|
|
|
for (TQPtrList <kpView>::const_iterator it = m_views.begin ();
|
|
it != m_views.end ();
|
|
it++)
|
|
{
|
|
kpView *view = *it;
|
|
|
|
#if DEBUG_KP_VIEW_MANAGER && 0
|
|
kdDebug () << "\tupdating view " << view->name () << endl;
|
|
#endif
|
|
if (view->zoomLevelX () % 100 == 0 && view->zoomLevelY () % 100 == 0)
|
|
{
|
|
#if DEBUG_KP_VIEW_MANAGER && 0
|
|
kdDebug () << "\t\tviewRect=" << view->transformDocToView (docRect) << endl;
|
|
#endif
|
|
updateView (view, view->transformDocToView (docRect));
|
|
}
|
|
else
|
|
{
|
|
TQRect viewRect = view->transformDocToView (docRect);
|
|
|
|
int diff = tqRound (double (TQMAX (view->zoomLevelX (), view->zoomLevelY ())) / 100.0) + 1;
|
|
|
|
TQRect newRect = TQRect (viewRect.x () - diff,
|
|
viewRect.y () - diff,
|
|
viewRect.width () + 2 * diff,
|
|
viewRect.height () + 2 * diff)
|
|
.intersect (TQRect (0, 0, view->width (), view->height ()));
|
|
|
|
#if DEBUG_KP_VIEW_MANAGER && 0
|
|
kdDebug () << "\t\tviewRect (+compensate)=" << newRect << endl;
|
|
#endif
|
|
updateView (view, newRect);
|
|
}
|
|
}
|
|
}
|
|
|
|
void kpViewManager::updateViews (int x, int y, int w, int h)
|
|
{
|
|
updateViews (TQRect (x, y, w, h));
|
|
}
|
|
|
|
|
|
void kpViewManager::adjustViewsToEnvironment ()
|
|
{
|
|
#if DEBUG_KP_VIEW_MANAGER && 1
|
|
kdDebug () << "kpViewManager::adjustViewsToEnvironment()"
|
|
<< " numViews=" << m_views.count ()
|
|
<< endl;
|
|
#endif
|
|
for (TQPtrList <kpView>::const_iterator it = m_views.begin ();
|
|
it != m_views.end ();
|
|
it++)
|
|
{
|
|
kpView *view = *it;
|
|
|
|
#if DEBUG_KP_VIEW_MANAGER && 1
|
|
kdDebug () << "\tview: " << view->name ()
|
|
<< endl;
|
|
#endif
|
|
view->adjustToEnvironment ();
|
|
}
|
|
}
|
|
|
|
#include <kpviewmanager.moc>
|
|
|