Initial commit for the locale viewmodule.

src/modules/locale/timezonewidget/timezonewidget.cpp

@@ -0,0 +1,193 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2014, Teo Mrnjavac <teo@kde.org>
+ *
+ *   Originally from the Manjaro Installation Framework
+ *   by Roland Singer <roland@manjaro.org>
+ *   Copyright (C) 2007 Free Software Foundation, Inc.
+ *
+ *   Calamares 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 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares 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 Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "timezonewidget.h"
+
+TimeZoneWidget::TimeZoneWidget(QWidget *parent) :
+    QWidget(parent)
+{
+    setMouseTracking(false);
+    setCursor(Qt::PointingHandCursor);
+
+    // Font
+    font.setFamily("Cantarell");
+    font.setPointSize(12);
+    font.setBold(false);
+
+    // Images
+    background = QImage(":/images/bg.png").scaled(X_SIZE, Y_SIZE, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
+    pin = QImage(":/images/pin.png");
+
+    // Set size
+    setMinimumSize(background.size());
+    setMaximumSize(background.size());
+
+    // Zone images
+    QStringList zones = QString(ZONES).split(" ", QString::SkipEmptyParts);
+    for (int i = 0; i < zones.size(); ++i)
+        timeZoneImages.append(QImage(":/images/timezone_" + zones.at(i) + ".png").scaled(X_SIZE, Y_SIZE, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+}
+
+
+void TimeZoneWidget::setCurrentLocation(QString region, QString zone) {
+    QHash<QString, QList<LocaleGlobal::Location> > hash = LocaleGlobal::getLocations();
+
+    if (!hash.contains(region))
+        return;
+
+    QList<LocaleGlobal::Location> locations = hash.value(region);
+    for (int i = 0; i < locations.size(); ++i) {
+        if (locations.at(i).zone == zone) {
+            setCurrentLocation(locations.at(i));
+            break;
+        }
+    }
+}
+
+
+
+void TimeZoneWidget::setCurrentLocation(LocaleGlobal::Location location) {
+    currentLocation = location;
+
+    // Set zone
+    QPoint pos = getLocationPosition(currentLocation.longitude, currentLocation.latitude);
+
+    for (int i = 0; i < timeZoneImages.size(); ++i) {
+        QImage zone = timeZoneImages[i];
+
+        // If not transparent set as current
+        if (zone.pixel(pos) != RGB_TRANSPARENT) {
+            currentZoneImage = zone;
+            break;
+        }
+    }
+
+    // Repaint widget
+    repaint();
+}
+
+
+
+//###
+//### Private
+//###
+
+
+QPoint TimeZoneWidget::getLocationPosition(double longitude, double latitude) {
+    const int width = this->width();
+    const int height = this->height();
+
+    double x = (width / 2.0 + (width / 2.0) * longitude / 180.0) + MAP_X_OFFSET * width;
+    double y = (height / 2.0 - (height / 2.0) * latitude / 90.0) + MAP_Y_OFFSET * height;
+
+    if (x < 0)
+        x = width+x;
+    if (x >= width)
+        x -= width;
+    if (y < 0)
+        y = height+y;
+    if (y >= height)
+        y -= height;
+
+    return QPoint((int)x, (int)y);
+}
+
+
+
+void TimeZoneWidget::paintEvent(QPaintEvent*) {
+    const int width = this->width();
+    const int height = this->height();
+    QFontMetrics fontMetrics(font);
+    QPainter painter(this);
+
+    painter.setRenderHint(QPainter::Antialiasing);
+    painter.setFont(font);
+
+    // Draw background
+    painter.drawImage(0, 0, background);
+
+    // Draw zone image
+    painter.drawImage(0, 0, currentZoneImage);
+
+    // Draw pin
+    QPoint point = getLocationPosition(currentLocation.longitude, currentLocation.latitude);
+    painter.drawImage(point.x() - pin.width()/2, point.y() - pin.height()/2, pin);
+
+    // Draw text and box
+    const int textWidth = fontMetrics.width(currentLocation.zone);
+    const int textHeight = fontMetrics.height();
+
+    QRect rect = QRect(point.x() - textWidth/2 - 5, point.y() - textHeight - 8, textWidth + 10, textHeight - 2);
+
+    if (rect.x() <= 5)
+        rect.moveLeft(5);
+    if (rect.right() >= width-5)
+        rect.moveRight(width - 5);
+    if (rect.y() <= 5)
+        rect.moveTop(5);
+    if (rect.y() >= height-5)
+        rect.moveBottom(height-5);
+
+    painter.setPen(QPen()); // no pen
+    painter.setBrush(QColor(40, 40, 40));
+    painter.drawRoundedRect(rect, 3, 3);
+    painter.setPen(Qt::white);
+    painter.drawText(rect.x() + 5, rect.bottom() - 4, currentLocation.zone);
+
+    painter.end();
+}
+
+
+
+void TimeZoneWidget::mousePressEvent(QMouseEvent *event) {
+    if (event->button() != Qt::LeftButton)
+        return;
+
+    // Set nearest location
+    int nX = 999999, mX = event->pos().x();
+    int nY = 999999, mY = event->pos().y();
+    QHash<QString, QList<LocaleGlobal::Location> > hash = LocaleGlobal::getLocations();
+    QHash<QString, QList<LocaleGlobal::Location> >::iterator iter = hash.begin();
+
+    while (iter != hash.end()) {
+        QList<LocaleGlobal::Location> locations = iter.value();
+
+        for (int i = 0; i < locations.size(); ++i) {
+            LocaleGlobal::Location loc = locations[i];
+            QPoint locPos = getLocationPosition(loc.longitude, loc.latitude);
+
+            if ((abs(mX - locPos.x()) + abs(mY - locPos.y())  <  abs(mX - nX) + abs(mY - nY))) {
+                currentLocation = loc;
+                nX = locPos.x();
+                nY = locPos.y();
+            }
+        }
+
+        ++iter;
+    }
+
+    // Set zone image and repaint widget
+    setCurrentLocation(currentLocation);
+
+    // Emit signal
+    emit locationChanged(currentLocation);
+}