mirror of
https://github.com/tumic0/GPXSee.git
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99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
#include <QFont>
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#include <QFontMetrics>
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#include <QImage>
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#include <QPainter>
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#include "textpointitem.h"
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#define FLAGS (Qt::AlignCenter | Qt::TextWordWrap | Qt::TextDontClip)
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#define MAX_TEXT_WIDTH 8
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#define MIN_BOX_WIDTH 2
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static void expand(QRect &rect, int width)
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{
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rect.adjust(-(width/2 - rect.width()/2), 0, width/2 - rect.width()/2, 0);
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}
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TextPointItem::TextPointItem(const QPoint &point, const QString *text,
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const QFont *font, const QImage *img, const QColor *color,
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const QColor *bgColor) : TextItem(font ? text : 0), _font(font), _img(img),
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_color(color), _bgColor(bgColor)
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{
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if (_text) {
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QFontMetrics fm(*_font);
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int limit = _font->pixelSize() * MAX_TEXT_WIDTH;
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_textRect = fm.boundingRect(QRect(0, 0, limit, 0), FLAGS, *_text);
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_textRect.adjust(0, 0, 1, 1);
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if (_bgColor && _textRect.width() < _font->pixelSize() * MIN_BOX_WIDTH)
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expand(_textRect, _font->pixelSize() * MIN_BOX_WIDTH);
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}
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setPos(point);
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}
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void TextPointItem::setPos(const QPoint &point)
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{
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QPainterPath shape;
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QRect iconRect;
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if (_img) {
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iconRect = QRect(QPoint(point.x() - _img->width()/2, point.y()
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- _img->height()/2), _img->size());
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_textRect.moveTopLeft(QPoint(point.x() + _img->width(), point.y()
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- _textRect.height()/2));
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} else
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_textRect.moveCenter(point);
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_rect = _textRect | iconRect;
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shape.addRect(_rect);
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_shape = shape;
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}
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void TextPointItem::paint(QPainter *painter) const
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{
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if (_img)
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painter->drawImage(QPoint(_rect.left(), _rect.center().y()
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- _img->height()/2), *_img);
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if (_text) {
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if (_bgColor) {
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painter->setPen(*_color);
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painter->setBrush(*_bgColor);
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painter->drawRect(_textRect);
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painter->setBrush(Qt::NoBrush);
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painter->setFont(*_font);
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painter->drawText(_textRect, FLAGS, *_text);
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} else {
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QImage img(_textRect.size(), QImage::Format_ARGB32_Premultiplied);
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img.fill(Qt::transparent);
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QPainter ip(&img);
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ip.setPen(Qt::white);
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ip.setFont(*_font);
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ip.drawText(img.rect(), FLAGS, *_text);
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painter->drawImage(_textRect.x() - 1, _textRect.y() - 1, img);
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painter->drawImage(_textRect.x() + 1, _textRect.y() + 1, img);
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painter->drawImage(_textRect.x() - 1, _textRect.y() + 1, img);
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painter->drawImage(_textRect.x() + 1, _textRect.y() - 1, img);
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painter->drawImage(_textRect.x(), _textRect.y() - 1, img);
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painter->drawImage(_textRect.x(), _textRect.y() + 1, img);
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painter->drawImage(_textRect.x() - 1, _textRect.y(), img);
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painter->drawImage(_textRect.x() + 1, _textRect.y(), img);
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if (_color) {
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painter->setFont(*_font);
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painter->setPen(*_color);
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painter->drawText(_textRect, FLAGS, *_text);
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} else {
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img.invertPixels();
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painter->drawImage(_textRect, img);
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}
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}
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}
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//painter->setPen(Qt::red);
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//painter->drawRect(_rect);
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}
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