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
|
// SizePreview.cpp
//
// Part of KVIEWSHELL - A framework for multipage text/gfx viewers
//
// (C) 2002 Stefan Kebekus
// Distributed under the GPL
// Add header files alphabetically
#include <config.h>
#include <kdebug.h>
#include <krandomsequence.h>
#include <tqevent.h>
#include <tqpainter.h>
#include "sizePreview.h"
#include "simplePageSize.h"
SizePreview::SizePreview( TQWidget *parent, const char *name, WFlags)
: TQWidget( parent, name, WStaticContents | WNoAutoErase )
{
// Set a sane default
_width = _height = 50.0;
orientation = 0; // Portrait
}
void SizePreview::setSize(const SimplePageSize& size)
{
_width = size.width().getLength_in_mm();
_height = size.height().getLength_in_mm();
if (_width < 50.0)
_width = 50.0;
if (_width > 1200.0)
_width = 1200.0;
if (_height < 50.0)
_height = 50.0;
if (_height > 1200.0)
_height = 1200.0;
update();
}
void SizePreview::resizeEvent(TQResizeEvent*)
{
update();
}
void SizePreview::paintEvent( TQPaintEvent * )
{
int displayedWidth, displayedHeight;
// Figure the width and height of the displayed page. Tricky.
if (orientation == 0) {
displayedWidth = (int)(height() * (_width/_height) + 0.5);
displayedHeight = (int)(width() * (_height/_width) + 0.5);
} else {
displayedHeight = (int)(height() * (_width/_height) + 0.5);
displayedWidth = (int)(width() * (_height/_width) + 0.5);
}
if (displayedWidth <= width())
displayedHeight = height();
else
displayedWidth = width();
int hOffset = (width()-displayedWidth)/2;
int vOffset = (height()-displayedHeight)/2;
// Now draw the graphics
pixmap.resize(width(), height());
TQPainter p(&pixmap);
p.fillRect(rect(), colorGroup().background());
p.setPen(Qt::black);
p.setBrush(Qt::white);
p.drawRect(hOffset, vOffset, displayedWidth, displayedHeight);
// mark the textbox; we assume 25mm margin
int margin = (int)(25.0*displayedWidth/_width + 0.5);
TQRect textBox(hOffset+margin, vOffset+margin, displayedWidth-2*margin, displayedHeight-2*margin);
p.setPen(Qt::lightGray);
p.drawRect(textBox);
// Draw some dummy "text", represented by black lines
int lineSpacing = (int)(7.0*displayedWidth/_width + 0.5); // equiv. 7 mm
if (lineSpacing <= 3)
lineSpacing = 3;
int interWordSpace = (int)(4.0*displayedWidth/_width + 0.5); // equiv. 4 mm
if (interWordSpace <= 1)
interWordSpace = 2;
KRandomSequence rnd(1); // to generate word widths
p.setClipRect(textBox);
p.setPen(Qt::black);
int count = 1; // Counts lines
for (int y = vOffset+margin+lineSpacing; y <= vOffset+displayedHeight-margin; y += lineSpacing) {
// We start each line with its own seed.
// This means that the random sequence for each line is always the same, and this
// results in a more steady picture when the widget is resized.
rnd.setSeed(count);
// Every 10th line the end of a paragraph
int endParagraph;
if (count++ % 10 == 0)
endParagraph = (int)(50.0*displayedWidth/_width + 0.5);
else
endParagraph = 0;
for(int x = hOffset+margin; x <= hOffset+displayedWidth-margin-endParagraph; ) {
double wordWidthMM = rnd.getDouble()*30.0+10.0;
int wordWidth = (int)(wordWidthMM*displayedWidth/_width + 0.5);
p.drawLine(x, y, x+wordWidth, y);
x += wordWidth+interWordSpace+1;
}
}
p.end();
// Copy the pixmap onto the widget
bitBlt(this, rect().topLeft(), &pixmap, rect(), CopyROP);
return;
}
void SizePreview::setOrientation(int ori)
{
orientation = ori;
update();
}
#include "sizePreview.moc"
|
