From 141ad1e5ae7588906d8474dfdead5762370ce222 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sat, 18 Feb 2012 16:37:45 +0000
Subject: Added basic map widget

---
 src/mapwidget.cc | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 src/mapwidget.cc

(limited to 'src/mapwidget.cc')

diff --git a/src/mapwidget.cc b/src/mapwidget.cc
new file mode 100644
index 0000000..3c0d846
--- /dev/null
+++ b/src/mapwidget.cc
@@ -0,0 +1,73 @@
+/*
+   mapwidget.cc
+   This file is part of the Project::OSiRiON zone editor 
+   and is distributed under the terms and conditions of 
+   the GNU General Public License version 2
+*/
+
+#include <mapwidget.h>
+
+#include <QPainter>
+#include <QWheelEvent>
+
+namespace editor
+{
+
+MapWidget::MapWidget(QWidget *parent) : QWidget(parent)
+{
+	setMinimumSize(128,128);
+	
+	// zoom sucks but it works
+	mapwidget_zoom = 4;
+}
+
+void MapWidget::wheelEvent(QWheelEvent *event)
+{
+	if (event->orientation() == Qt::Vertical) {
+		mapwidget_zoom += event->delta() / 120;
+		if (mapwidget_zoom < 1)
+			mapwidget_zoom = 1;
+		else if (mapwidget_zoom > 64) {
+			mapwidget_zoom = 64;
+		}
+		repaint();
+		event->accept();
+	}
+}
+
+void MapWidget::paintEvent(QPaintEvent *event)
+{
+	QPen pen(Qt::blue, 1, Qt::SolidLine);
+	QPainter painter(this);
+	
+	painter.setPen(pen);
+
+	// mapwidget_zoom is used to scale from game units to screen coorinates	
+	// 1 grid square is 128 game units
+	// gridsize is the size of one grid square in screen coordinates
+	int gridsize = 128 / mapwidget_zoom;
+	
+	int x = width() / 2;
+	while (x > 0) {
+		painter.drawLine(x, 0, x, height());
+		x -= gridsize;
+	}
+	x = width() / 2 + gridsize;
+	while (x <= width()) {
+		painter.drawLine(x, 0, x, height());
+		x += gridsize;
+	}
+	
+	int y = height() / 2;
+	while (y > 0) {
+		painter.drawLine(0, y, width(), y);
+		y -= gridsize;
+	}
+	y = height() / 2 + gridsize;
+	while (y <= height()) {
+		painter.drawLine(0, y, width(), y);
+		y += gridsize;
+	}
+}
+
+}
-- 
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