e4cbab0301
Brightness control is implemented by rendering content with transparent background, providing background as a separate item behind the content and adjusting opacity of the content item according to the selected brightness.
320 lines
9.3 KiB
C++
320 lines
9.3 KiB
C++
/*
|
|
* Copyright (C) 2015-2020 Jolla Ltd.
|
|
* Copyright (C) 2015-2020 Slava Monich <slava.monich@jolla.com>
|
|
*
|
|
* You may use this file under the terms of the BSD license as follows:
|
|
*
|
|
* 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.
|
|
* 3. Neither the names of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "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 COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
#include "BooksPaintContext.h"
|
|
|
|
#include "HarbourDebug.h"
|
|
|
|
#include "ZLImage.h"
|
|
#include "ZLTextStyle.h"
|
|
#include "ZLStringUtil.h"
|
|
#include "image/ZLQtImageManager.h"
|
|
|
|
#include <QPainter>
|
|
#include <QFontMetrics>
|
|
#include <QFontDatabase>
|
|
#include <QImage>
|
|
|
|
static const std::string HELVETICA = "Helvetica";
|
|
|
|
BooksPaintContext::BooksPaintContext() :
|
|
iPainter(NULL), iWidth(0), iHeight(0),
|
|
iSpaceWidth(0), iDescent(0), iInvertColors(false)
|
|
{
|
|
}
|
|
|
|
BooksPaintContext::BooksPaintContext(int aWidth, int aHeight) :
|
|
iPainter(NULL), iWidth(aWidth), iHeight(aHeight),
|
|
iSpaceWidth(0), iDescent(0), iInvertColors(false)
|
|
{
|
|
}
|
|
|
|
BooksPaintContext::~BooksPaintContext()
|
|
{
|
|
}
|
|
|
|
void BooksPaintContext::beginPaint(QPainter *aPainter)
|
|
{
|
|
iPainter = aPainter;
|
|
iPainter->setFont(iFont);
|
|
}
|
|
|
|
void BooksPaintContext::endPaint()
|
|
{
|
|
iPainter = NULL;
|
|
}
|
|
|
|
void BooksPaintContext::fillFamiliesList(std::vector<std::string> &families) const
|
|
{
|
|
QFontDatabase db;
|
|
const QStringList qFamilies = db.families();
|
|
bool helveticaFlag = false;
|
|
for (QStringList::ConstIterator it = qFamilies.begin(); it != qFamilies.end(); ++it) {
|
|
std::string family = it->toUtf8().constData();
|
|
helveticaFlag |= (family == HELVETICA);
|
|
families.push_back(family);
|
|
}
|
|
if (!helveticaFlag) {
|
|
families.push_back(HELVETICA);
|
|
}
|
|
}
|
|
|
|
const std::string BooksPaintContext::realFontFamilyName(std::string &fontFamily) const
|
|
{
|
|
QString fullName = QFontInfo(QFont(QString::fromUtf8(fontFamily.c_str()))).family();
|
|
if (fullName.isNull() || fullName.isEmpty()) {
|
|
return HELVETICA;
|
|
}
|
|
return fullName.toStdString();
|
|
}
|
|
|
|
void BooksPaintContext::setFont(const std::string& family, int size, bool bold, bool italic)
|
|
{
|
|
bool fontChanged = false;
|
|
|
|
if (!family.empty()) {
|
|
QString qtFamily(QString::fromStdString(family));
|
|
if (iFont.family() != qtFamily) {
|
|
iFont.setFamily(qtFamily);
|
|
fontChanged = true;
|
|
}
|
|
}
|
|
|
|
if (iFont.pointSize() != size) {
|
|
iFont.setPointSize(size);
|
|
fontChanged = true;
|
|
}
|
|
|
|
if ((iFont.weight() != (bold ? QFont::Bold : QFont::Normal))) {
|
|
iFont.setWeight(bold ? QFont::Bold : QFont::Normal);
|
|
fontChanged = true;
|
|
}
|
|
|
|
if (iFont.italic() != italic) {
|
|
iFont.setItalic(italic);
|
|
fontChanged = true;
|
|
}
|
|
|
|
if (fontChanged) {
|
|
QFontMetrics fontMetrics(iFont);
|
|
iSpaceWidth = fontMetrics.width(QString(" "));
|
|
iDescent = fontMetrics.descent();
|
|
if (iPainter) {
|
|
iPainter->setFont(iFont);
|
|
}
|
|
}
|
|
}
|
|
|
|
void BooksPaintContext::setColor(ZLColor color, LineStyle style)
|
|
{
|
|
if (iPainter) {
|
|
iPainter->setPen(QPen(qtColor(color), 1, (style == SOLID_LINE) ?
|
|
Qt::SolidLine : Qt::DashLine));
|
|
}
|
|
}
|
|
|
|
void BooksPaintContext::setFillColor(ZLColor color, FillStyle style)
|
|
{
|
|
if (iPainter) {
|
|
iPainter->setBrush(QBrush(qtColor(color), (style == SOLID_FILL) ?
|
|
Qt::SolidPattern : Qt::Dense4Pattern));
|
|
}
|
|
}
|
|
|
|
int BooksPaintContext::stringWidth(const char *str, int len, bool) const
|
|
{
|
|
QFontMetrics fontMetrics(iFont);
|
|
return fontMetrics.width(QString::fromUtf8(str, len));
|
|
}
|
|
|
|
int BooksPaintContext::spaceWidth() const
|
|
{
|
|
return iSpaceWidth;
|
|
}
|
|
|
|
int BooksPaintContext::descent() const
|
|
{
|
|
return iDescent;
|
|
}
|
|
|
|
int BooksPaintContext::stringHeight() const
|
|
{
|
|
return iFont.pointSize() + 2;
|
|
}
|
|
|
|
void BooksPaintContext::drawString(int x, int y, const char* str, int len, bool rtl)
|
|
{
|
|
if (iPainter) {
|
|
QString qStr = QString::fromUtf8(str, len);
|
|
iPainter->setLayoutDirection(rtl ? Qt::RightToLeft : Qt::LeftToRight);
|
|
iPainter->drawText(x, y, qStr);
|
|
}
|
|
}
|
|
|
|
void BooksPaintContext::drawImage(int x, int y, const ZLImageData& image)
|
|
{
|
|
if (iPainter) {
|
|
const QImage* qImage = ((ZLQtImageData&)image).image();
|
|
if (qImage) {
|
|
iPainter->drawImage(x, y - image.height(), *qImage);
|
|
}
|
|
}
|
|
}
|
|
|
|
void BooksPaintContext::drawImage(int x, int y, const ZLImageData& image,
|
|
int width, int height, ScalingType type)
|
|
{
|
|
if (iPainter) {
|
|
const QImage* qImage = ((ZLQtImageData&)image).image();
|
|
if (qImage) {
|
|
const QImage scaled = qImage->scaled(
|
|
QSize(imageWidth(image, width, height, type),
|
|
imageHeight(image, width, height, type)),
|
|
Qt::KeepAspectRatio,
|
|
Qt::SmoothTransformation);
|
|
iPainter->drawImage(x, y - scaled.height(), scaled);
|
|
}
|
|
}
|
|
}
|
|
|
|
void BooksPaintContext::drawLine(int x0, int y0, int x1, int y1)
|
|
{
|
|
if (iPainter) {
|
|
iPainter->drawPoint(x0, y0);
|
|
iPainter->drawLine(x0, y0, x1, y1);
|
|
iPainter->drawPoint(x1, y1);
|
|
}
|
|
}
|
|
|
|
void BooksPaintContext::fillRectangle(int x0, int y0, int x1, int y1)
|
|
{
|
|
if (iPainter) {
|
|
if (x1 < x0) {
|
|
int tmp = x1;
|
|
x1 = x0;
|
|
x0 = tmp;
|
|
}
|
|
if (y1 < y0) {
|
|
int tmp = y1;
|
|
y1 = y0;
|
|
y0 = tmp;
|
|
}
|
|
iPainter->fillRect(x0, y0, x1-x0+1, y1-y0+1, iPainter->brush());
|
|
}
|
|
}
|
|
|
|
void BooksPaintContext::drawFilledCircle(int x, int y, int r)
|
|
{
|
|
if (iPainter) {
|
|
iPainter->drawEllipse(x - r, y - r, 2 * r + 1, 2 * r + 1);
|
|
}
|
|
}
|
|
|
|
void BooksPaintContext::clear(ZLColor aColor)
|
|
{
|
|
if (iPainter) {
|
|
iPainter->setCompositionMode(QPainter::CompositionMode_Source);
|
|
iPainter->fillRect(0, 0, iWidth, iHeight, qtColor(aColor));
|
|
iPainter->setCompositionMode(QPainter::CompositionMode_SourceOver);
|
|
}
|
|
}
|
|
|
|
int BooksPaintContext::width() const
|
|
{
|
|
return iWidth;
|
|
}
|
|
|
|
int BooksPaintContext::height() const
|
|
{
|
|
return iHeight;
|
|
}
|
|
|
|
ZLColor BooksPaintContext::realColor(uchar aRed, uchar aGreen, uchar aBlue, uchar aAlpha,
|
|
bool aInvertColors)
|
|
{
|
|
if (aInvertColors) {
|
|
aRed = 255 - aRed;
|
|
aGreen = 255 - aGreen;
|
|
aBlue = 255 - aBlue;
|
|
}
|
|
return ZLColor(aRed, aGreen, aBlue, aAlpha);
|
|
}
|
|
|
|
ZLColor BooksPaintContext::realColor(const std::string& aStyle, bool aInvert)
|
|
{
|
|
static const std::string INTERNAL_HYPERLINK("internal");
|
|
static const std::string EXTERNAL_HYPERLINK("external");
|
|
static const std::string BOOK_HYPERLINK("book");
|
|
unsigned long argb = ZLColor::rgbValue(0);
|
|
|
|
if (ZLStringUtil::startsWith(aStyle, '#')) {
|
|
const size_t len = aStyle.length();
|
|
if (len == 7 || len == 9) {
|
|
int i;
|
|
unsigned long rgb = 0;
|
|
for (i=1; i<7; i++) {
|
|
int nibble = ZLStringUtil::fromHex(aStyle[i]);
|
|
if (nibble >= 0) {
|
|
rgb <<= 4;
|
|
rgb |= nibble;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
if (i == 7) {
|
|
if (len == 9) {
|
|
int a1 = ZLStringUtil::fromHex(aStyle[7]);
|
|
int a2 = ZLStringUtil::fromHex(aStyle[8]);
|
|
if (a1 >= 0 && a2 >= 0) {
|
|
argb = ZLColor::rgbValue(rgb, (a1 << 4) | a2);
|
|
} else {
|
|
argb = ZLColor::rgbValue(rgb);
|
|
}
|
|
} else {
|
|
argb = ZLColor::rgbValue(rgb);
|
|
}
|
|
}
|
|
}
|
|
} else if (aStyle == INTERNAL_HYPERLINK) {
|
|
argb = ZLColor::rgbValue(0x2160b4);
|
|
} else if (aStyle == EXTERNAL_HYPERLINK) {
|
|
argb = ZLColor::rgbValue(0x2160b4);
|
|
} else if (aStyle == BOOK_HYPERLINK) {
|
|
argb = ZLColor::rgbValue(0x174480);
|
|
} else if (aStyle == ZLTextStyle::SELECTION_BACKGROUND) {
|
|
argb = ZLColor::rgbValue(0x3c8bff);
|
|
} else if (aStyle == ZLTextStyle::HIGHLIGHTED_TEXT) {
|
|
argb = ZLColor::rgbValue(0x3c8bff);
|
|
}
|
|
return realColor(ZLColor(argb), aInvert);
|
|
}
|