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
|
/*
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.
*/
#ifndef __kpselection_h__
#define __kpselection_h__
#include <qbitmap.h>
#include <qdatastream.h>
#include <qobject.h>
#include <qpixmap.h>
#include <qpoint.h>
#include <qpointarray.h>
#include <qvaluevector.h>
#include <qrect.h>
#include <qstring.h>
#include <kpcolor.h>
#include <kppixmapfx.h>
#include <kpselectiontransparency.h>
#include <kptextstyle.h>
class QSize;
/*
* Holds a selection - will also be used for the clipboard
* so that we can retain the border.
*/
class kpSelection : public QObject
{
Q_OBJECT
public:
enum Type
{
Rectangle,
Ellipse,
Points,
Text
};
// (for any)
kpSelection (const kpSelectionTransparency &transparency = kpSelectionTransparency ());
// (for Rectangle & Ellipse)
kpSelection (Type type, const QRect &rect, const QPixmap &pixmap = QPixmap (),
const kpSelectionTransparency &transparency = kpSelectionTransparency ());
kpSelection (Type type, const QRect &rect, const kpSelectionTransparency &transparency);
// (for Text)
kpSelection (const QRect &rect, const QValueVector <QString> &textLines_, const kpTextStyle &textStyle_);
// (for Points)
kpSelection (const QPointArray &points, const QPixmap &pixmap = QPixmap (),
const kpSelectionTransparency &transparency = kpSelectionTransparency ());
kpSelection (const QPointArray &points, const kpSelectionTransparency &transparency);
kpSelection (const kpSelection &rhs);
kpSelection &operator= (const kpSelection &rhs);
friend QDataStream &operator<< (QDataStream &stream, const kpSelection &selection);
friend QDataStream &operator>> (QDataStream &stream, kpSelection &selection);
void readFromStream (QDataStream &stream,
const kpPixmapFX::WarnAboutLossInfo &wali =
kpPixmapFX::WarnAboutLossInfo ());
~kpSelection ();
private:
void calculatePoints ();
public:
Type type () const;
bool isRectangular () const;
bool isText () const;
// returns either i18n ("Selection") or i18n ("Text")
QString name () const;
int size () const;
QBitmap maskForOwnType (bool nullForRectangular = false) const;
// synonyms
QPoint topLeft () const;
QPoint point () const;
int x () const;
int y () const;
void moveBy (int dx, int dy);
void moveTo (int dx, int dy);
void moveTo (const QPoint &topLeftPoint);
// synonyms
QPointArray points () const;
QPointArray pointArray () const;
QRect boundingRect () const;
int width () const;
int height () const;
// (for non-rectangular selections, may return false even if
// kpView::onSelectionResizeHandle())
bool contains (const QPoint &point) const;
bool contains (int x, int y);
// (Avoid using for text selections since text selection may
// require a background for antialiasing purposes - use paint()
// instead, else no antialising)
QPixmap *pixmap () const;
void setPixmap (const QPixmap &pixmap);
bool usesBackgroundPixmapToPaint () const;
private:
void paintOpaqueText (QPixmap *destPixmap, const QRect &docRect) const;
QPixmap transparentForegroundTextPixmap () const;
public:
// (<docRect> is the document rectangle that <*destPixmap> represents)
void paint (QPixmap *destPixmap, const QRect &docRect) const;
private:
void calculateTextPixmap ();
public:
static QString textForTextLines (const QValueVector <QString> &textLines_);
QString text () const; // textLines() as one long string
QValueVector <QString> textLines () const;
void setTextLines (const QValueVector <QString> &textLines_);
static int textBorderSize ();
QRect textAreaRect () const;
bool pointIsInTextBorderArea (const QPoint &globalPoint) const;
bool pointIsInTextArea (const QPoint &globalPoint) const;
void textResize (int width, int height);
// TODO: Enforce in kpSelection, not just in kpToolSelection & when pasting
// (in kpMainWindow).
// Be more robust when external enforcement fails.
static int minimumWidthForTextStyle (const kpTextStyle &);
static int minimumHeightForTextStyle (const kpTextStyle &);
static QSize minimumSizeForTextStyle (const kpTextStyle &);
static int preferredMinimumWidthForTextStyle (const kpTextStyle &textStyle);
static int preferredMinimumHeightForTextStyle (const kpTextStyle &textStyle);
static QSize preferredMinimumSizeForTextStyle (const kpTextStyle &textStyle);
int minimumWidth () const;
int minimumHeight () const;
QSize minimumSize () const;
int textRowForPoint (const QPoint &globalPoint) const;
int textColForPoint (const QPoint &globalPoint) const;
QPoint pointForTextRowCol (int row, int col);
kpTextStyle textStyle () const;
void setTextStyle (const kpTextStyle &textStyle);
// TODO: ret val inconstent with pixmap()
// - fix when merge with kpTempPixmap
QPixmap opaquePixmap () const; // same as pixmap()
private:
void calculateTransparencyMask ();
public:
// Returns opaquePixmap() after applying kpSelectionTransparency
QPixmap transparentPixmap () const;
kpSelectionTransparency transparency () const;
// Returns whether or not the selection changed due to setting the
// transparency info. If <checkTransparentPixmapChanged> is set,
// it will try harder to return false (although the check is
// expensive).
bool setTransparency (const kpSelectionTransparency &transparency,
bool checkTransparentPixmapChanged = false);
private:
void flipPoints (bool horiz, bool vert);
public:
void flip (bool horiz, bool vert);
signals:
void changed (const QRect &docRect);
private:
// OPT: use implicit sharing
Type m_type;
QRect m_rect;
QPointArray m_points;
QPixmap *m_pixmap;
QValueVector <QString> m_textLines;
kpTextStyle m_textStyle;
kpSelectionTransparency m_transparency;
QBitmap m_transparencyMask;
private:
// There is no need to maintain binary compatibility at this stage.
// The d-pointer is just so that you can experiment without recompiling
// the kitchen sink.
class kpSelectionPrivate *d;
};
#endif // __kpselection_h__
|
