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