Weather: Text painting object.

Signed-off-by: Luiz Agostini <luiz.agostini@openbossa.org>

3 files changed, 120 insertions, 2 deletions

diff --git a/weather/painttextitem.cpp b/weather/painttextitem.cpp
new file mode 100644
index 0000000..7356815
--- /dev/null
+++ b/weather/painttextitem.cpp
@@ -0,0 +1,67 @@
+#include "painttextitem.h"
+#include <QPainter>
+#include <QDebug>
+
+TextPainter::TextPainter(int fontSize, QColor color, const QString &text)
+    : m_pen(color)
+    , m_brush(color)
+    , m_text(text)
+    , m_quoted(false)
+    , m_maxWidth(-1)
+{
+    m_font.setFamily("Nokia Sans");
+    m_font.setPixelSize(fontSize);
+    m_font.setStyleStrategy(QFont::PreferAntialias);
+    m_pen.setJoinStyle(Qt::RoundJoin);
+}
+
+int TextPainter::width() const
+{
+    QFontMetrics m(m_font);
+    int result = 0;
+    if (m_quoted)
+        result += 2 * m.width('"');
+    QString text = m_maxWidth > 0 ? m.elidedText(m_text, Qt::ElideRight, m_maxWidth - result)
+                                  : m_text;
+    return result + m.width(text);
+}
+
+void TextPainter::paint(QPainter *painter)
+{
+    QFontMetrics m(m_font);
+    QString text;
+    if (m_quoted) {
+        int quote = 2 * m.width('"');
+        text = m_maxWidth > 0 ? m.elidedText(m_text, Qt::ElideRight, m_maxWidth - quote) : m_text;
+        text = '"' + text + '"';
+    } else
+        text = m_maxWidth > 0 ? m.elidedText(m_text, Qt::ElideRight, m_maxWidth) : m_text;
+    painter->setFont(m_font);
+    painter->setPen(m_pen);
+    painter->setBrush(m_brush);
+
+    painter->drawText(QPointF(m_pos.x(), m_pos.y() + m.ascent()), text);
+}
+
+void TextPainter::locateAtCenter(TextPainter *item, qreal left, qreal top, qreal width)
+{
+    item->setPos(left + (width - item->width()) / 2, top);
+}
+
+void TextPainter::locateAtCenter(QList<TextPainter*> items, qreal left, qreal top, qreal width)
+{
+    static const int margin = 5;
+
+    if (items.isEmpty())
+        return;
+
+    int itemsWidth = (items.count() - 1) * margin;
+    for (int i = 0; i < items.count(); ++i)
+        itemsWidth += items[i]->width();
+
+    left += (width - itemsWidth) / 2;
+    for (int i = 0; i < items.count(); ++i) {
+        items[i]->setPos(left, top);
+        left += items[i]->width() + margin;
+    }
+}
diff --git a/weather/painttextitem.h b/weather/painttextitem.h
new file mode 100644
index 0000000..9811226
--- /dev/null
+++ b/weather/painttextitem.h
@@ -0,0 +1,49 @@
+#ifndef PAINTTEXTITEM_H
+#define PAINTTEXTITEM_H
+
+#include <QFont>
+#include <QPen>
+#include <QBrush>
+#include <QFontMetrics>
+#include <QGraphicsItem>
+
+class TextPainter
+{
+public:
+    TextPainter(int fontSize, QColor color, const QString &text);
+    QFont &font() { return m_font; }
+    QPen &pen() { return m_pen; }
+    QBrush &brush() { return m_brush; }
+
+    const QString text() const { return m_text; }
+    void setText(const QString &text) { m_text = text; }
+
+    QPointF pos() const { return m_pos; }
+    void setPos(QPointF pos) { m_pos = pos; }
+    void setPos(qreal x, qreal y) { setPos(QPointF(x, y)); }
+
+    bool quoted() const { return m_quoted; }
+    void setQuoted(bool quoted) { m_quoted = quoted; }
+
+    int maxWidth() const { return m_maxWidth; }
+    void setMaxWidth(int width) { m_maxWidth = width; }
+
+    int width() const;
+    int height() const { return QFontMetrics(m_font).height(); }
+
+    void paint(QPainter *painter);
+
+    static void locateAtCenter(QList<TextPainter*> items, qreal left, qreal top, qreal width);
+    static void locateAtCenter(TextPainter *item, qreal left, qreal top, qreal width);
+
+private:
+    QFont m_font;
+    QPen m_pen;
+    QBrush m_brush;
+    QString m_text;
+    QPointF m_pos;
+    bool m_quoted;
+    int m_maxWidth;
+};
+
+#endif // PAINTTEXTITEM_H
diff --git a/weather/weather.pro b/weather/weather.pro
index 1af84b2..bbbdddf 100644
--- a/weather/weather.pro
+++ b/weather/weather.pro
@@ -49,7 +49,8 @@ HEADERS += mainview.h \
     contentlist.h \
     citylist.h \
     citymanager.h \
-    addcitytool.h
+    addcitytool.h \
+    painttextitem.h
 SOURCES += mainview.cpp \
     main.cpp \
     settings.cpp \
@@ -71,4 +72,5 @@ SOURCES += mainview.cpp \
     contentlist.cpp \
     citylist.cpp \
     citymanager.cpp \
-    addcitytool.cpp
+    addcitytool.cpp \
+    painttextitem.cpp