kolourpaint/tools/selection/text/kpToolText_InputMethodEvents.cpp

   1
   2 /*
   3    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
   4    Copyright (c) 2005 Kazuki Ohta <mover@hct.zaq.ne.jp>
   5    All rights reserved.
   6
   7    Redistribution and use in source and binary forms, with or without
   8    modification, are permitted provided that the following conditions
   9    are met:
  10
  11    1. Redistributions of source code must retain the above copyright
  12       notice, this list of conditions and the following disclaimer.
  13    2. Redistributions in binary form must reproduce the above copyright
  14       notice, this list of conditions and the following disclaimer in the
  15       documentation and/or other materials provided with the distribution.
  16
  17    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27 */
  28
  29 #define DEBUG_KP_TOOL_TEXT 0
  30
  31
  32 #include <kpToolText.h>
  33 #include <kpToolTextPrivate.h>
  34
  35 #include <qevent.h>
  36 #include <qlist.h>
  37
  38 #include <kdebug.h>
  39 #include <klocale.h>
  40
  41 #include <kpBug.h>
  42 #include <kpDocument.h>
  43 #include <kpTextSelection.h>
  44 #include <kpToolTextBackspaceCommand.h>
  45 #include <kpToolTextChangeStyleCommand.h>
  46 #include <kpToolSelectionCreateCommand.h>
  47 #include <kpToolSelectionEnvironment.h>
  48 #include <kpToolTextDeleteCommand.h>
  49 #include <kpToolTextEnterCommand.h>
  50 #include <kpToolTextInsertCommand.h>
  51 #include <kpToolWidgetOpaqueOrTransparent.h>
  52 #include <kpView.h>
  53 #include <kpViewManager.h>
  54
  55
  56 // COMPAT: Need to update InputMethod support.
  57 //
  58 // This code needs lots of updating not just to Qt/KDE4 but also to changes
  59 // in KolourPaint internals.
  60 #if 0
  61
  62 void kpToolText::imStartEvent (QIMEvent *e)
  63 {
  64 #if DEBUG_KP_TOOL_TEXT && 1
  65     kDebug () << "kpToolText::imStartEvent() text='" << e->text ()
  66                << " cursorPos=" << e->cursorPos ()
  67                << " selectionLength=" << e->selectionLength ()
  68                << endl;
  69 #endif
  70
  71     kpTextSelection *textSel = document ()->textSelection ();
  72     if (hasBegunDraw() || !textSel)
  73     {
  74         e->ignore();
  75         return;
  76     }
  77
  78     d->IMStartCursorRow = viewManager ()->textCursorRow ();
  79     d->IMStartCursorCol = viewManager ()->textCursorCol ();
  80     d->IMPreeditStr.clear ();
  81 }
  82
  83 void kpToolText::imComposeEvent (QIMEvent *e)
  84 {
  85 #if DEBUG_KP_TOOL_TEXT && 1
  86     kDebug () << "kpToolText::imComposeEvent() text='" << e->text ()
  87                << " cursorPos=" << e->cursorPos ()
  88                << " selectionLength=" << e->selectionLength ()
  89                << endl;
  90 #endif
  91
  92     kpTextSelection *textSel = document ()->textSelection ();
  93     if (hasBegunDraw() || !textSel)
  94     {
  95         e->ignore();
  96         return;
  97     }
  98
  99     // remove old preedit
 100     if (d->IMPreeditStr.length() > 0 )
 101     {
 102         // set cursor at the start input point
 103         viewManager ()->setTextCursorPosition (d->IMStartCursorRow, d->IMStartCursorCol);
 104         for (unsigned int i = 0; i < d->IMPreeditStr.length(); i++)
 105         {
 106             if (!d->deleteCommand)
 107             {
 108                 if (hasBegunShape ())
 109                     endShape (currentPoint (), normalizedRect ());
 110
 111                 d->deleteCommand = new kpToolTextDeleteCommand (i18n ("Text: Delete"),
 112                     viewManager ()->textCursorRow (), viewManager ()->textCursorCol (),
 113                     kpToolTextDeleteCommand::AddDeleteNow,
 114                     environ ()->commandEnvironment ());
 115                 commandHistory ()->addCommand (d->deleteCommand, false/*no exec*/);
 116             }
 117             else
 118                 d->deleteCommand->addDelete ();
 119         }
 120     }
 121
 122     // insert new preedit
 123     d->IMPreeditStr = e->text();
 124     if (d->IMPreeditStr.length() > 0)
 125     {
 126         if (!d->insertCommand)
 127         {
 128             if (hasBegunShape ())
 129                 endShape (currentPoint (), normalizedRect ());
 130
 131             d->insertCommand = new kpToolTextInsertCommand (i18n ("Text: Write"),
 132                                                            viewManager ()->textCursorRow (), viewManager ()->textCursorCol (),
 133                                                            d->IMPreeditStr,
 134                                                            environ ()->commandEnvironment ());
 135             commandHistory ()->addCommand (d->insertCommand, false/*no exec*/);
 136         }
 137         else
 138             d->insertCommand->addText (d->IMPreeditStr);
 139     }
 140
 141     // set cursor pos
 142     if (d->IMStartCursorRow >= 0)
 143     {
 144         int row = d->IMStartCursorRow;
 145         int col = d->IMStartCursorCol + e->cursorPos () /* + e->selectionLength()*/;
 146         viewManager ()->setTextCursorPosition (row, col, true /* update MicroFocusHint */);
 147     }
 148 }
 149
 150 void kpToolText::imEndEvent (QIMEvent *e)
 151 {
 152 #if DEBUG_KP_TOOL_TEXT && 1
 153     kDebug () << "kpToolText::imEndEvent() text='" << e->text ()
 154                << " cursorPos=" << e->cursorPos ()
 155                << " selectionLength=" << e->selectionLength ()
 156                << endl;
 157 #endif
 158
 159     kpTextSelection *textSel = document ()->textSelection ();
 160     if (hasBegunDraw() || !textSel)
 161     {
 162         e->ignore();
 163         return;
 164     }
 165
 166     // remove old preedit
 167     if (d->IMPreeditStr.length() > 0 )
 168     {
 169         // set cursor at the start input point
 170         viewManager ()->setTextCursorPosition (d->IMStartCursorRow, d->IMStartCursorCol);
 171         for (unsigned int i = 0; i < d->IMPreeditStr.length(); i++)
 172         {
 173             if (!d->deleteCommand)
 174             {
 175                 if (hasBegunShape ())
 176                     endShape (currentPoint (), normalizedRect ());
 177
 178                 d->deleteCommand = new kpToolTextDeleteCommand (i18n ("Text: Delete"),
 179                     viewManager ()->textCursorRow (),
 180                     viewManager ()->textCursorCol (),
 181                     kpToolTextDeleteCommand::AddDeleteNow,
 182                     environ ()->commandEnvironment ());
 183                 commandHistory ()->addCommand (d->deleteCommand, false/*no exec*/);
 184             }
 185             else
 186                 d->deleteCommand->addDelete ();
 187         }
 188     }
 189     d->IMPreeditStr.clear ();
 190
 191     // commit string
 192     QString inputStr = e->text();
 193     if (inputStr.length() > 0)
 194     {
 195         if (!d->insertCommand)
 196         {
 197             if (hasBegunShape ())
 198                 endShape (currentPoint (), normalizedRect ());
 199
 200             d->insertCommand = new kpToolTextInsertCommand (i18n ("Text: Write"),
 201                                                            viewManager ()->textCursorRow (), viewManager ()->textCursorCol (),
 202                                                            inputStr,
 203                                                            environ ()->commandEnvironment ());
 204             commandHistory ()->addCommand (d->insertCommand, false/*no exec*/);
 205         }
 206         else
 207             d->insertCommand->addText (inputStr);
 208     }
 209 }
 210
 211 #endif  // COMPAT