File indexing completed on 2024-12-22 04:07:24

 
 /*
    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
    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_KP_TOOL_SELECTION 0
 
 
 #include "kpToolSelectionDestroyCommand.h"
 #include "kpLogCategories.h"
 #include "layers/selections/kpAbstractSelection.h"
 #include "layers/selections/image/kpAbstractImageSelection.h"
 #include "environments/commands/kpCommandEnvironment.h"
 #include "kpDefs.h"
 #include "document/kpDocument.h"
 #include "layers/selections/text/kpTextSelection.h"
 #include "views/manager/kpViewManager.h"
 
 //---------------------------------------------------------------------
 
 kpToolSelectionDestroyCommand::kpToolSelectionDestroyCommand (const QString &name,
         bool pushOntoDocument,
         kpCommandEnvironment *environ)
     : kpNamedCommand (name, environ),
       m_pushOntoDocument (pushOntoDocument),
       m_oldSelectionPtr (nullptr),
       m_textRow(0), m_textCol(0)
 {
 }
 
 //---------------------------------------------------------------------
 
 kpToolSelectionDestroyCommand::~kpToolSelectionDestroyCommand ()
 {
     delete m_oldSelectionPtr;
 }
 
 //---------------------------------------------------------------------
 
 // public virtual [base kpCommand]
 kpCommandSize::SizeType kpToolSelectionDestroyCommand::size () const
 {
     return ImageSize (m_oldDocImage) +
            SelectionSize (m_oldSelectionPtr);
 }
 
 //---------------------------------------------------------------------
 
 // public virtual [base kpCommand]
 void kpToolSelectionDestroyCommand::execute ()
 {
 #if DEBUG_KP_TOOL_SELECTION
     qCDebug(kpLogCommands) << "kpToolSelectionDestroyCommand::execute () CALLED";
 #endif
 
     kpDocument *doc = document ();
     Q_ASSERT (doc);
     Q_ASSERT (doc->selection ());
 
     m_textRow = viewManager ()->textCursorRow ();
     m_textCol = viewManager ()->textCursorCol ();
 
     Q_ASSERT (!m_oldSelectionPtr);
     m_oldSelectionPtr = doc->selection ()->clone ();
 
     if (m_pushOntoDocument)
     {
         m_oldDocImage = doc->getImageAt (doc->selection ()->boundingRect ());
         doc->selectionPushOntoDocument ();
     }
     else {
         doc->selectionDelete ();
     }
 
     environ ()->somethingBelowTheCursorChanged ();
 }
 
 //---------------------------------------------------------------------
 
 // public virtual [base kpCommand]
 void kpToolSelectionDestroyCommand::unexecute ()
 {
 #if DEBUG_KP_TOOL_SELECTION
     qCDebug(kpLogCommands) << "kpToolSelectionDestroyCommand::unexecute () CALLED";
 #endif
 
     kpDocument *doc = document ();
     Q_ASSERT (doc);
 
     if (doc->selection ())
     {
         // not error because it's possible that the user dragged out a new
         // region (without pulling image), and then CTRL+Z
     #if DEBUG_KP_TOOL_SELECTION
         qCDebug(kpLogCommands) << "kpToolSelectionDestroyCommand::unexecute() already has sel region";
     #endif
 
         if (doc->selection ()->hasContent ())
         {
             Q_ASSERT (!"kpToolSelectionDestroyCommand::unexecute() already has sel content");
             return;
         }
     }
 
     Q_ASSERT (m_oldSelectionPtr);
 
     if (m_pushOntoDocument)
     {
     #if DEBUG_KP_TOOL_SELECTION
         qCDebug(kpLogCommands) << "\tunpush oldDocImage onto doc first";
     #endif
         doc->setImageAt (m_oldDocImage, m_oldSelectionPtr->topLeft ());
     }
 
 #if DEBUG_KP_TOOL_SELECTION
     qCDebug(kpLogCommands) << "\tsetting selection to: rect=" << m_oldSelectionPtr->boundingRect ()
                << " hasContent=" << m_oldSelectionPtr->hasContent ();
 #endif
     kpAbstractImageSelection *imageSel =
         dynamic_cast <kpAbstractImageSelection *> (m_oldSelectionPtr);
     kpTextSelection *textSel =
         dynamic_cast <kpTextSelection *> (m_oldSelectionPtr);
     if (imageSel)
     {
         if (imageSel->transparency () != environ ()->imageSelectionTransparency ()) {
             environ ()->setImageSelectionTransparency (imageSel->transparency ());
         }
         if (dynamic_cast <kpTextSelection *> (doc->selection())) {
             doc->selectionPushOntoDocument();
         }
     }
     else if (textSel)
     {
         if (textSel->textStyle () != environ ()->textStyle ()) {
             environ ()->setTextStyle (textSel->textStyle ());
         }
         if (dynamic_cast <kpAbstractImageSelection *> (doc->selection())) {
             doc->selectionPushOntoDocument();
         }
     }
     else {
         Q_ASSERT (!"Unknown selection type");
     }
 
     viewManager ()->setTextCursorPosition (m_textRow, m_textCol);
     doc->setSelection (*m_oldSelectionPtr);
 
     environ ()->somethingBelowTheCursorChanged ();
 
     delete m_oldSelectionPtr;
     m_oldSelectionPtr = nullptr;
 }