X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fpainter.cpp;h=4213261315b7aacb66a4e9420a98061cd6f350e1;hb=e04e3a62d9f98d0cee6a4cf1e23a3019af8a37a7;hp=6cfd91f8ef62641d6584158631c6a3834866532a;hpb=11802354d1ddc5bc571d83d8fc9b600618cb4372;p=architektonas

diff --git a/src/painter.cpp b/src/painter.cpp
index 6cfd91f..4213261 100644
--- a/src/painter.cpp
+++ b/src/painter.cpp
@@ -15,6 +15,7 @@
 #include "painter.h"
 
 #include "mathconstants.h"
+#include "object.h"
 
 
 // Set class variable defaults
@@ -176,6 +177,53 @@ void Painter::DrawHandle(Vector center)
 }
 
 
+// This function is for drawing object handles without regard for zoom level;
+// we don't want our object handle size to depend on the zoom level!
+void Painter::DrawArrowHandle(Vector center, double angle)
+{
+	center = CartesianToQtCoords(center);
+	QPolygonF arrow;
+
+	// Since we're drawing directly on the screen, the Y is inverted. So we use
+	// the mirror of the angle.
+	double orthoAngle = -angle + (PI / 2.0);
+	Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle));
+	Vector unit = Vector(cos(-angle), sin(-angle));
+
+	Point p0 = center + (unit * 6.0);
+	Point p1 = center + (unit * 21.0);
+	Point p1b = center + (unit * 11.0);
+	Point p2 = p1b + (orthogonal * 5.0);
+	Point p3 = p1b - (orthogonal * 5.0);
+
+	painter->drawLine(p0.x, p0.y, p1.x, p1.y);
+	arrow << QPointF(p1.x, p1.y) << QPointF(p2.x, p2.y) << QPointF(p3.x, p3.y);
+
+	painter->drawPolygon(arrow);
+}
+
+
+// This function is for drawing object handles without regard for zoom level;
+// we don't want our object handle size to depend on the zoom level!
+void Painter::DrawArrowToLineHandle(Vector center, double angle)
+{
+	DrawArrowHandle(center, angle);
+	center = CartesianToQtCoords(center);
+
+	// Since we're drawing directly on the screen, the Y is inverted. So we use
+	// the mirror of the angle.
+	double orthoAngle = -angle + (PI / 2.0);
+	Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle));
+	Vector unit = Vector(cos(-angle), sin(-angle));
+
+	Point p1 = center + (unit * 21.0);
+	Point p2 = p1 + (orthogonal * 7.0);
+	Point p3 = p1 - (orthogonal * 7.0);
+
+	painter->drawLine(p2.x, p2.y, p3.x, p3.y);
+}
+
+
 void Painter::DrawLine(int x1, int y1, int x2, int y2)
 {
 	if (!painter)
@@ -208,6 +256,7 @@ void Painter::DrawPoint(int x, int y)
 }
 
 
+// The rect passed in is in Qt coordinates...
 void Painter::DrawRoundedRect(QRectF rect, double radiusX, double radiusY)
 {
 	if (!painter)
@@ -217,6 +266,21 @@ void Painter::DrawRoundedRect(QRectF rect, double radiusX, double radiusY)
 }
 
 
+// The rect passed in is in Cartesian but we want to pad it by a set number of
+// pixels (currently set at 8), so the pad looks the same regardless of zoom.
+void Painter::DrawPaddedRect(QRectF rect)
+{
+	if (!painter)
+		return;
+
+	Vector v1 = CartesianToQtCoords(Vector(rect.x(), rect.y()));
+	Vector v2 = CartesianToQtCoords(Vector(rect.right(), rect.bottom()));
+	QRectF screenRect(QPointF(v1.x, v1.y), QPointF(v2.x, v2.y));
+	screenRect.adjust(-8, 8, 8, -8);	// Left/top, right/bottom
+	painter->drawRect(screenRect);
+}
+
+
 void Painter::DrawRect(QRectF rect)
 {
 	if (!painter)
@@ -240,6 +304,9 @@ void Painter::DrawText(QRectF rect, int type, QString text)
 
 void Painter::DrawArrowhead(Vector head, Vector tail, double size)
 {
+	if (!painter)
+		return;
+
 	QPolygonF arrow;
 
 	// We draw the arrowhead aligned along the line from tail to head
@@ -261,3 +328,34 @@ void Painter::DrawArrowhead(Vector head, Vector tail, double size)
 	painter->drawPolygon(arrow);
 }
 
+
+// Point is given in Cartesian coordinates
+void Painter::DrawCrosshair(Vector point)
+{
+	if (!painter)
+		return;
+
+	Vector screenPoint = CartesianToQtCoords(point);
+	painter->drawLine(0, screenPoint.y, screenSize.x, screenPoint.y);
+	painter->drawLine(screenPoint.x, 0, screenPoint.x, screenSize.y);
+}
+
+
+void Painter::DrawInformativeText(QString text)
+{
+	painter->setFont(*Object::font);
+	QRectF bounds = painter->boundingRect(QRectF(), Qt::AlignVCenter, text);
+	bounds.moveTo(17.0, 17.0);
+	QRectF textRect = bounds;
+	textRect.adjust(-7.0, -7.0, 7.0, 7.0);
+
+	QPen pen = QPen(QColor(0x00, 0xFF, 0x00), 1.0, Qt::SolidLine);
+	painter->setPen(pen);
+	painter->setBrush(QBrush(QColor(0x40, 0xFF, 0x40, 0x9F)));
+	painter->drawRoundedRect(textRect, 7.0, 7.0);
+
+	pen = QPen(QColor(0x00, 0x5F, 0xDF));
+	painter->setPen(pen);
+	painter->drawText(bounds, Qt::AlignVCenter, text);
+}
+