summaryrefslogtreecommitdiffstats
path: root/kolourpaint/tools/kptoolfloodfill.cpp
blob: 5a59cd5b828c1f115b865acd3f4ad3697b0bbf20 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261

/*
   Copyright (c) 2003,2004,2005 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_FLOOD_FILL 0


#include <kptoolfloodfill.h>

#include <tqapplication.h>
#include <tqcursor.h>
#include <tqpainter.h>
#include <tqpixmap.h>

#include <kdebug.h>
#include <tdelocale.h>

#include <kpcommandhistory.h>
#include <kpdefs.h>
#include <kpdocument.h>
#include <kpmainwindow.h>
#include <kpview.h>
#include <kpviewmanager.h>


/*
 * kpToolFloodFill
 */

kpToolFloodFill::kpToolFloodFill (kpMainWindow *mainWindow)
    : kpTool (i18n ("Flood Fill"), i18n ("Fills regions in the image"),
              TQt::Key_F,
              mainWindow, "tool_flood_fill"),
      m_currentCommand (0)
{
}

kpToolFloodFill::~kpToolFloodFill ()
{
}

TQString kpToolFloodFill::haventBegunDrawUserMessage () const
{
    return i18n ("Click to fill a region.");
}

void kpToolFloodFill::begin ()
{
    setUserMessage (haventBegunDrawUserMessage ());
}

// virtual
void kpToolFloodFill::beginDraw ()
{
#if DEBUG_KP_TOOL_FLOOD_FILL && 1
    kdDebug () << "kpToolFloodFill::beginDraw()" << endl;
#endif

    TQApplication::setOverrideCursor (TQt::waitCursor);

    // Flood Fill is an expensive CPU operation so we only fill at a
    // mouse click (beginDraw ()), not on mouse move (virtually draw())
    m_currentCommand = new kpToolFloodFillCommand (m_currentPoint.x (), m_currentPoint.y (),
                                                   color (m_mouseButton), processedColorSimilarity (),
                                                   mainWindow ());

    if (m_currentCommand->prepareColorToChange ())
    {
    #if DEBUG_KP_TOOL_FLOOD_FILL && 1
        kdDebug () << "\tperforming new-doc-corner-case check" << endl;
    #endif
        if (document ()->url ().isEmpty () && !document ()->isModified ())
        {
            m_currentCommand->setFillEntirePixmap ();
            m_currentCommand->execute ();
        }
        else if (m_currentCommand->prepare ())
        {
            m_currentCommand->execute ();
        }
        else
        {
            kdError () << "kpToolFloodFill::beginDraw() could not fill!" << endl;
        }
    }
    else
    {
        kdError () << "kpToolFloodFill::beginDraw() could not prepareColorToChange!" << endl;
    }

    TQApplication::restoreOverrideCursor ();

    setUserMessage (cancelUserMessage ());
}

// virtual
void kpToolFloodFill::draw (const TQPoint &thisPoint, const TQPoint &, const TQRect &)
{
    setUserShapePoints (thisPoint);
}

// virtual
void kpToolFloodFill::cancelShape ()
{
#if 0
    endDraw (TQPoint (), TQRect ());
    mainWindow ()->commandHistory ()->undo ();
#else
    m_currentCommand->unexecute ();

    delete m_currentCommand;
    m_currentCommand = 0;
#endif

    setUserMessage (i18n ("Let go of all the mouse buttons."));
}

void kpToolFloodFill::releasedAllButtons ()
{
    setUserMessage (haventBegunDrawUserMessage ());
}

// virtual
void kpToolFloodFill::endDraw (const TQPoint &, const TQRect &)
{
    mainWindow ()->commandHistory ()->addCommand (m_currentCommand,
        false /* no exec - we already did it up there */);

    // don't delete
    m_currentCommand = 0;
    setUserMessage (haventBegunDrawUserMessage ());
}


/*
 * kpToolFloodFillCommand
 */

kpToolFloodFillCommand::kpToolFloodFillCommand (int x, int y,
                                                const kpColor &color, int processedColorSimilarity,
                                                kpMainWindow *mainWindow)
    : kpCommand (mainWindow),
      kpFloodFill (document ()->pixmap (), x, y, color, processedColorSimilarity),
      m_fillEntirePixmap (false)
{
}

kpToolFloodFillCommand::~kpToolFloodFillCommand ()
{
}


// public virtual [base kpCommand]
TQString kpToolFloodFillCommand::name () const
{
    return i18n ("Flood Fill");
}

// public virtual [base kpCommand]
int kpToolFloodFillCommand::size () const
{
    return kpFloodFill::size () + kpPixmapFX::pixmapSize (m_oldPixmap);
}


void kpToolFloodFillCommand::setFillEntirePixmap (bool yes)
{
    m_fillEntirePixmap = yes;
}


// virtual
void kpToolFloodFillCommand::execute ()
{
#if DEBUG_KP_TOOL_FLOOD_FILL && 1
    kdDebug () << "kpToolFloodFillCommand::execute() m_fillEntirePixmap=" << m_fillEntirePixmap << endl;
#endif

    kpDocument *doc = document ();
    if (!doc)
        return;


    if (m_fillEntirePixmap)
    {
        doc->fill (kpFloodFill::color ());
    }
    else
    {
        TQRect rect = kpFloodFill::boundingRect ();
        if (rect.isValid ())
        {
            TQApplication::setOverrideCursor (TQCursor::waitCursor);

            m_oldPixmap = doc->getPixmapAt (rect);

            kpFloodFill::fill ();
            doc->slotContentsChanged (rect);

            TQApplication::restoreOverrideCursor ();
        }
        else
        {
        #if DEBUG_KP_TOOL_FLOOD_FILL && 1
            kdDebug () << "\tinvalid boundingRect - must be NOP case" << endl;
        #endif
        }
    }
}

// virtual
void kpToolFloodFillCommand::unexecute ()
{
    kpDocument *doc = document ();
    if (!doc)
        return;


    if (m_fillEntirePixmap)
    {
        doc->fill (kpFloodFill::colorToChange ());
    }
    else
    {
        TQRect rect = kpFloodFill::boundingRect ();
        if (rect.isValid ())
        {
            doc->setPixmapAt (m_oldPixmap, rect.topLeft ());

            m_oldPixmap.resize (0, 0);

            doc->slotContentsChanged (rect);
        }
    }
}

#include <kptoolfloodfill.moc>