kde-workspace/kcontrol/keyboard/flags.cpp
2014-11-13 19:30:51 +02:00

299 lines
8.1 KiB
C++

/*
* Copyright (C) 2010 Andriy Rysin (rysin@kde.org)
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "flags.h"
#include <kdebug.h>
#include <kstandarddirs.h>
#include <kiconloader.h>
#include <kglobalsettings.h>
#include <klocalizedstring.h>
#include <plasma/svg.h>
#include <plasma/paintutils.h>
#include <QtCore/QStringList>
#include <QtGui/QPixmap>
#include <QtGui/QPainter>
#include <QtGui/QIcon>
#include <math.h>
#include "x11_helper.h"
//for text handling
#include "keyboard_config.h"
#include "xkb_rules.h"
static const int FLAG_MAX_WIDTH = 21;
static const int FLAG_MAX_HEIGHT = 14;
static const char flagTemplate[] = "l10n/%1/flag.png";
Flags::Flags():
svg(NULL)
{
transparentPixmap = new QPixmap(FLAG_MAX_WIDTH, FLAG_MAX_HEIGHT);
transparentPixmap->fill(Qt::transparent);
}
Flags::~Flags()
{
if( svg != NULL ) {
disconnect(svg, SIGNAL(repaintNeeded()), this, SLOT(themeChanged()));
delete svg;
}
delete transparentPixmap;
}
const QIcon Flags::getIcon(const QString& layout)
{
if( ! iconMap.contains(layout) ) {
iconMap[ layout ] = createIcon(layout);
}
return iconMap[ layout ];
}
QIcon Flags::createIcon(const QString& layout)
{
QIcon icon;
if( ! layout.isEmpty() ) {
if( layout == "epo" ) {
QString file = KStandardDirs::locate("data", "kcmkeyboard/pics/epo.png");
icon.addFile(file);
}
else {
QString countryCode = getCountryFromLayoutName( layout );
if( ! countryCode.isEmpty() ) {
QString file = KStandardDirs::locate("locale", QString(flagTemplate).arg(countryCode));
// kDebug() << "Creating icon for" << layout << "with" << file;
icon.addFile(file);
}
}
}
return icon;
}
//static
//const QStringList NON_COUNTRY_LAYOUTS = QString("ara,brai,epo,latam,mao").split(",");
QString Flags::getCountryFromLayoutName(const QString& layout) const
{
QString countryCode = layout;
if( countryCode == "nec_vndr/jp" )
return "jp";
// if( NON_COUNTRY_LAYOUTS.contain(layout) )
if( countryCode.length() > 2 )
return "";
return countryCode;
}
//TODO: move this to some other class?
QString Flags::getShortText(const LayoutUnit& layoutUnit, const KeyboardConfig& keyboardConfig)
{
if( layoutUnit.isEmpty() )
return QString("--");
QString layoutText = layoutUnit.layout;
foreach(const LayoutUnit& lu, keyboardConfig.layouts) {
if( layoutUnit.layout == lu.layout && layoutUnit.variant == lu.variant ) {
layoutText = lu.getDisplayName();
break;
}
}
//TODO: good autolabel
// if( layoutText == layoutUnit.layout && layoutUnit.getDisplayName() != layoutUnit.layout ) {
// layoutText = layoutUnit.getDisplayName();
// }
return layoutText;
}
QString Flags::getFullText(const LayoutUnit& layoutUnit, const KeyboardConfig& keyboardConfig, const Rules* rules)
{
QString shortText = Flags::getShortText(layoutUnit, keyboardConfig);
QString longText = Flags::getLongText(layoutUnit, rules);
return i18nc("short layout label - full layout name", "%1 - %2", shortText, longText);
}
static QString getDisplayText(const QString& layout, const QString& variant, const Rules* rules)
{
if( variant.isEmpty() )
return layout;
if( rules == NULL || rules->version == "1.0" )
return i18nc("layout - variant", "%1 - %2", layout, variant);
return variant;
}
QString Flags::getLongText(const LayoutUnit& layoutUnit, const Rules* rules)
{
if( rules == NULL ) {
return getDisplayText(layoutUnit.layout, layoutUnit.variant, rules);
}
QString layoutText = layoutUnit.layout;
const LayoutInfo* layoutInfo = rules->getLayoutInfo(layoutUnit.layout);
if( layoutInfo != NULL ) {
layoutText = layoutInfo->description;
if( ! layoutUnit.variant.isEmpty() ) {
const VariantInfo* variantInfo = layoutInfo->getVariantInfo(layoutUnit.variant);
QString variantText = variantInfo != NULL ? variantInfo->description : layoutUnit.variant;
layoutText = getDisplayText(layoutText, variantText, rules);
}
}
return layoutText;
}
static
QString getPixmapKey(const KeyboardConfig& keyboardConfig)
{
switch(keyboardConfig.indicatorType) {
case KeyboardConfig::SHOW_FLAG:
return "_fl";
case KeyboardConfig::SHOW_LABEL_ON_FLAG:
return "_bt";
case KeyboardConfig::SHOW_LABEL:
return "_lb";
}
return "_"; // should not happen
}
void Flags::drawLabel(QPainter& painter, const QString& layoutText, bool flagShown)
{
QFont font = painter.font();
QRect rect = painter.window();
// int fontSize = layoutText.length() == 2
// ? height * 7 / 10
// : height * 5 / 10;
int fontSize = rect.height();// * 7 /10;
font.setPixelSize(fontSize);
font.setWeight(QFont::DemiBold);
QFontMetrics fm = painter.fontMetrics();
int width = fm.width(layoutText);
if( width > rect.width() * 2 / 3 ) {
fontSize = round( (double)fontSize * ((double)rect.width()*2/3) / width );
}
int smallestReadableSize = KGlobalSettings::smallestReadableFont().pixelSize();
if( fontSize < smallestReadableSize ) {
fontSize = smallestReadableSize;
}
font.setPixelSize(fontSize);
#ifdef DONT_USE_PLASMA
painter.setFont(font);
painter.setPen(Qt::white);
painter.drawText(QRect(rect).adust(1,1,0,0), Qt::AlignCenter | Qt::AlignHCenter, layoutText);
painter.setPen(Qt::black);
painter.drawText(rect, Qt::AlignCenter | Qt::AlignHCenter, layoutText);
#else
// we init svg so that we get notification about theme change
getSvg();
QColor textColor = flagShown ? Qt::black : Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor);
QColor shadowColor = flagShown ? Qt::white : Plasma::Theme::defaultTheme()->color(Plasma::Theme::BackgroundColor);
QPoint offset = QPoint(0, 0);
// QPixmap pixmap = Plasma::PaintUtils::texturedText(layoutText, font, svg);
QPixmap labelPixmap = Plasma::PaintUtils::shadowText(layoutText, font, textColor, shadowColor, offset, 3);
int y = round((rect.height() - labelPixmap.height()) / 2.0);
int x = round((rect.width() - labelPixmap.width()) / 2.0);
painter.drawPixmap(QPoint(x, y), labelPixmap);
#endif
}
const QIcon Flags::getIconWithText(const LayoutUnit& layoutUnit, const KeyboardConfig& keyboardConfig)
{
QString keySuffix(getPixmapKey(keyboardConfig));
QString key(layoutUnit.toString() + keySuffix);
if( iconOrTextMap.contains(key) ) {
return iconOrTextMap[ key ];
}
if( keyboardConfig.indicatorType == KeyboardConfig::SHOW_FLAG ) {
QIcon icon = getIcon(layoutUnit.layout);
if( ! icon.isNull() ) {
iconOrTextMap[ key ] = icon;
return icon;
}
}
QString layoutText = Flags::getShortText(layoutUnit, keyboardConfig);
const QSize TRAY_ICON_SIZE(21, 14);
QPixmap pixmap = QPixmap(TRAY_ICON_SIZE);
pixmap.fill(Qt::transparent);
QPainter painter(&pixmap);
// p.setRenderHint(QPainter::SmoothPixmapTransform);
// p.setRenderHint(QPainter::Antialiasing);
if( keyboardConfig.indicatorType == KeyboardConfig::SHOW_LABEL_ON_FLAG ) {
QIcon iconf = createIcon(layoutUnit.layout);
iconf.paint(&painter, painter.window(), Qt::AlignCenter);
}
drawLabel(painter, layoutText, keyboardConfig.isFlagShown());
painter.end();
QIcon icon(pixmap);
iconOrTextMap[ key ] = icon;
return icon;
}
Plasma::Svg* Flags::getSvg()
{
if( svg == NULL ) {
svg = new Plasma::Svg;
svg->setImagePath("widgets/labeltexture");
svg->setContainsMultipleImages(true);
connect(svg, SIGNAL(repaintNeeded()), this, SLOT(themeChanged()));
}
return svg;
}
void Flags::themeChanged()
{
// kDebug() << "Theme changed, new text color" << Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor);
clearCache();
emit pixmapChanged();
}
void Flags::clearCache()
{
// kDebug() << "Clearing flag pixmap cache";
iconOrTextMap.clear();
}