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/*
Copyright © 2008-13 Qtrac Ltd. All rights reserved.
This program or module is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, either version 2 of
the License, or (at your option) any later version. This program is
distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
*/
#include "generic.hpp"
#include <QMimeData>
#include <QRectF>
#include <QPainter>
#include <QPen>
#include <QPixmapCache>
#include <QUrl>
const QSize SwatchSize(24, 24);
void scaleRect(int dpi, QRectF *rect)
{
if (dpi == POINTS_PER_INCH)
return;
qreal x1;
qreal y1;
qreal x2;
qreal y2;
rect->getCoords(&x1, &y1, &x2, &y2);
qreal factor = dpi / static_cast<qreal>(POINTS_PER_INCH);
x1 *= factor;
y1 *= factor;
x2 *= factor;
y2 *= factor;
rect->setCoords(x1, y1, x2, y2);
}
int pointValueForPixelOffset(const double dpi, int px)
{
const double inches = px / dpi;
return qRound(inches * POINTS_PER_INCH);
}
int pixelOffsetForPointValue(const double dpi, int pt)
{
const double inches = pt / static_cast<double>(POINTS_PER_INCH);
return qRound(inches * dpi);
}
QRectF rectForMargins(const int width, const int height, const int top,
const int bottom, const int left, const int right)
{
return QRectF(QPointF(left, top),
QPointF(width - right, height - bottom));
}
Ranges unorderedRange(int end, int start)
{
Q_ASSERT(end >= start);
Ranges ranges;
while (start < end)
ranges.insert(start++);
return ranges;
}
QPixmap colorSwatch(const QColor &color)
{
QString key = QString("COLORSWATCH:%1").arg(color.name());
QPixmap pixmap(SwatchSize);
#if QT_VERSION >= 0x040600
if (!QPixmapCache::find(key, &pixmap)) {
#else
if (!QPixmapCache::find(key, pixmap)) {
#endif
pixmap.fill(Qt::transparent);
{
QPainter painter(&pixmap);
painter.setRenderHints(QPainter::Antialiasing);
painter.setPen(Qt::NoPen);
painter.setBrush(color);
painter.drawEllipse(0, 0, SwatchSize.width(),
SwatchSize.height());
}
QPixmapCache::insert(key, pixmap);
}
return pixmap;
}
QPixmap brushSwatch(const Qt::BrushStyle style, const QColor &color)
{
QString key = QString("BRUSHSTYLESWATCH:%1:%2:%3")
.arg(static_cast<int>(style)).arg(color.name()).arg(color.alpha());
QPixmap pixmap(SwatchSize);
#if QT_VERSION >= 0x040600
if (!QPixmapCache::find(key, &pixmap)) {
#else
if (!QPixmapCache::find(key, pixmap)) {
#endif
pixmap.fill(Qt::transparent);
{
QPainter painter(&pixmap);
painter.setRenderHint(QPainter::Antialiasing);
painter.setPen(Qt::NoPen);
painter.setBrush(QBrush(color, style));
painter.drawRect(0, 0, SwatchSize.width(),
SwatchSize.height());
}
QPixmapCache::insert(key, pixmap);
}
return pixmap;
}
QPixmap penStyleSwatch(const Qt::PenStyle style, const QColor &color)
{
QString key = QString("PENSTYLESWATCH:%1:%2")
.arg(static_cast<int>(style)).arg(color.name());
QPixmap pixmap(SwatchSize);
#if QT_VERSION >= 0x040600
if (!QPixmapCache::find(key, &pixmap)) {
#else
if (!QPixmapCache::find(key, pixmap)) {
#endif
pixmap.fill(Qt::transparent);
{
QPainter painter(&pixmap);
QPen pen(style);
pen.setColor(color);
pen.setWidth(2);
painter.setPen(pen);
const int Y = SwatchSize.height() / 2;
painter.drawLine(0, Y, SwatchSize.width(), Y);
}
QPixmapCache::insert(key, pixmap);
}
return pixmap;
}
const TextBoxList getTextBoxes(PdfPage page, const QRectF &rect)
{
TextBoxList boxes;
foreach (Poppler::TextBox *box, page->textList()) {
PdfTextBox box_ptr(box);
if (rect.isEmpty() || rect.contains(box_ptr->boundingBox()))
boxes.append(box_ptr);
}
return boxes;
}
const QString strippedFilename(const QString &filename)
{
const QString FilePrefix("file://");
QString filename_ = filename;
if (filename_.startsWith(FilePrefix))
filename_ = filename_.mid(FilePrefix.length());
#ifdef Q_WS_WIN
if (filename_.startsWith("/"))
filename_ = filename_.mid(1);
#endif
return filename_.trimmed();
}
const QStringList droppedFilenames(const QMimeData *mimeData)
{
QStringList filenames;
QString text = mimeData->text();
if (!text.isEmpty()) {
filenames = text.split("\n");
for (int i = 0; i < filenames.count(); ++i)
filenames[i] = strippedFilename(filenames.at(i));
}
else {
foreach (const QUrl &url, mimeData->urls())
filenames << strippedFilename(url.toString());
}
return filenames;
}
// Returns a copy of pageRect reduced if necessary to have the same
// aspect ratio as pixmapSize.
const QRect resizeRect(const QRect &pageRect, const QSize &pixmapSize)
{
double ratio = pixmapSize.width() /
static_cast<double>(pixmapSize.height());
double height = pageRect.height();
double width = ratio * height;
if (width > pageRect.width()) {
width = pageRect.width();
height = width / ratio;
}
QRect rect(pageRect);
rect.setWidth(width);
rect.setHeight(height);
return rect;
}
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