X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fpainter.cpp;h=df1d7d5d1c548a6cfe8014300485362d6f02bce8;hb=0e8f4edf80206248f0ad87a966d69d9ec9da3d2f;hp=bdac361f59b64d7f68b2aca874ac169c0d92837d;hpb=db0a3d91f37031e155cc8eac7cfdec9889f233ee;p=architektonas diff --git a/src/painter.cpp b/src/painter.cpp index bdac361..df1d7d5 100644 --- a/src/painter.cpp +++ b/src/painter.cpp @@ -13,16 +13,8 @@ // #include "painter.h" - -#include "mathconstants.h" -//#include "object.h" #include "global.h" - - -// Set class variable defaults -Vector Painter::origin(-10.0, -10.0); -double Painter::zoom = 1.0; -Vector Painter::screenSize(200.0, 200.0); +#include "mathconstants.h" Painter::Painter(QPainter * p/*= NULL*/): painter(p) @@ -39,7 +31,7 @@ Vector Painter::CartesianToQtCoords(Vector v) { // Convert regular Cartesian coordinates to the inverted Y-axis Qt coordinates // at the current origin and zoom level. - return Vector((v.x - origin.x) * zoom, screenSize.y - ((v.y - origin.y) * zoom)); + return Vector((v.x - Global::origin.x) * Global::zoom, Global::screenSize.y - ((v.y - Global::origin.y) * Global::zoom)); } @@ -47,7 +39,7 @@ Vector Painter::QtToCartesianCoords(Vector v) { // Convert screen location, with inverted Y-axis coordinates, to regular // Cartesian coordinates at the current zoom level. - return Vector((v.x / zoom) + origin.x, ((screenSize.y - v.y) / zoom) + origin.y); + return Vector((v.x / Global::zoom) + Global::origin.x, ((Global::screenSize.y - v.y) / Global::zoom) + Global::origin.y); /* How to do it: @@ -81,6 +73,26 @@ void Painter::SetRenderHint(int hint) } +void Painter::SetPen(QPen pen) +{ + if (!painter) + return; + + painter->setPen(pen); +} + + +void Painter::SetPen(uint32_t color, float size/*= 0*/, int style/*= 0*/) +{ + if (!painter) + return; + + // We can cast style as Qt:PenStyle because they line up 1-to-1 + painter->setPen(QPen(QColor(color >> 16, (color >> 8) & 0xFF, color & 0xFF, 255), + size, (Qt::PenStyle)style)); +} + + void Painter::SetBrush(QBrush brush) { if (!painter) @@ -90,21 +102,21 @@ void Painter::SetBrush(QBrush brush) } -void Painter::SetFont(QFont font) +void Painter::SetBrush(uint32_t color) { if (!painter) return; - painter->setFont(font); + painter->setBrush(QBrush(QColor(color >> 16, (color >> 8) & 0xFF, color & 0xFF, 255))); } -void Painter::SetPen(QPen pen) +void Painter::SetFont(QFont font) { if (!painter) return; - painter->setPen(pen); + painter->setFont(font); } @@ -121,19 +133,19 @@ void Painter::DrawAngledText(Vector center, double angle, QString text, double s // We may need this stuff... If dimension text is large enough. // int textWidth = QFontMetrics(painter->font()).width(text); // int textHeight = QFontMetrics(painter->font()).height(); - QRectF textBox(-100.0 * zoom * size, -100.0 * zoom * size, 200.0 * zoom * size, 200.0 * zoom * size); // x, y, w, h; x/y = upper left corner + QRectF textBox(-100.0 * Global::zoom * size, -100.0 * Global::zoom * size, 200.0 * Global::zoom * size, 200.0 * Global::zoom * size); // x, y, w, h; x/y = upper left corner // This is in pixels. Might not render correctly at all zoom levels. // Need to figure out if dimensions are always rendered at one size // regardless of zoom, or if they have a definite size, and are thus // zoomable. - float yOffset = -12.0 * zoom * size; + float yOffset = -12.0 * Global::zoom * size; // Fix text so it isn't upside down... - if ((angle > PI * 0.5) && (angle < PI * 1.5)) + if ((angle > QTR_TAU) && (angle < THREE_QTR_TAU)) { - angle += PI; - yOffset = 12.0 * zoom * size; + angle += HALF_TAU; + yOffset = 12.0 * Global::zoom * size; } textBox.translate(0, yOffset); @@ -147,11 +159,57 @@ void Painter::DrawAngledText(Vector center, double angle, QString text, double s } +// +// Draw angled text. Draws text using point p as the upper left corner. +// Size is point size, angle is in radians (defaults to 0). +// +void Painter::DrawTextObject(Point p, QString text, double size, double angle/*= 0*/) +{ + if (!painter) + return; + + p = CartesianToQtCoords(p); + painter->setFont(QFont("Arial", Global::zoom * size)); + int textWidth = QFontMetrics(painter->font()).width(text); + int textHeight = QFontMetrics(painter->font()).height(); + + QRectF textBox(0, 0, textWidth, textHeight); + painter->save(); + painter->translate(p.x, p.y); + // Angles are backwards in the Qt coord system, so we flip ours... + painter->rotate(-angle * RADIANS_TO_DEGREES); + painter->drawText(textBox, Qt::AlignLeft | Qt::AlignTop , text); + painter->restore(); +} + + +// +// Return the non-rotated rectangle containing the extents of the text in +// Cartesian coordiates (starting from <0, 0>, the lower left hand side) +// +Rect Painter::MeasureTextObject(QString text, double size) +{ + if (!painter) + return Rect(); + + painter->setFont(QFont("Arial", Global::zoom * size)); + int textWidth = QFontMetrics(painter->font()).width(text); + int textHeight = QFontMetrics(painter->font()).height(); + Point measured((double)textWidth / Global::zoom, (double)textHeight / Global::zoom);// = QtToCartesianCoords(Point(textWidth, textHeight)); +//printf("QFontMetrics w/h=%i/%i, measured=%lf/%lf\n", textWidth, textHeight, measured.x, measured.y); + + return Rect(Point(0, 0), measured); +} + + void Painter::DrawArc(Vector center, double radius, double startAngle, double span) { + if (!painter) + return; + center = CartesianToQtCoords(center); // Need to multiply scalar quantities by the zoom factor as well... - radius *= zoom; + radius *= Global::zoom; QRectF rectangle(QPointF(center.x - radius, center.y - radius), QPointF(center.x + radius, center.y + radius)); int angle1 = (int)(startAngle * RADIANS_TO_DEGREES * 16.0); @@ -162,9 +220,12 @@ void Painter::DrawArc(Vector center, double radius, double startAngle, double sp void Painter::DrawEllipse(Vector center, double axis1, double axis2) { + if (!painter) + return; + // Need to multiply scalar quantities by the zoom factor as well... center = CartesianToQtCoords(center); - painter->drawEllipse(QPointF(center.x, center.y), axis1 * zoom, axis2 * zoom); + painter->drawEllipse(QPointF(center.x, center.y), axis1 * Global::zoom, axis2 * Global::zoom); } @@ -172,22 +233,67 @@ void Painter::DrawEllipse(Vector center, double axis1, double axis2) // we don't want our object handle size to depend on the zoom level! void Painter::DrawHandle(Vector center) { + if (!painter) + return; + center = CartesianToQtCoords(center); + painter->setPen(QPen(Qt::red, 2.0, Qt::DotLine)); painter->setBrush(Qt::NoBrush); painter->drawEllipse(QPointF(center.x, center.y), 4.0, 4.0); } +// This function is for drawing feedback points without regard for zoom level; +// we don't want our feedback point size to depend on the zoom level! +void Painter::DrawCross(Vector point) +{ + if (!painter) + return; + + point = CartesianToQtCoords(point); + painter->setPen(QPen(Qt::red, 2.0, Qt::SolidLine)); + painter->drawLine(point.x - 8.0, point.y, point.x + 8.0, point.y); + painter->drawLine(point.x, point.y - 8.0, point.x, point.y + 8.0); +} + + +// This function is for drawing feedback points without regard for zoom level; +// we don't want our feedback point size to depend on the zoom level! +void Painter::DrawRectCorners(Rect rect) +{ + if (!painter) + return; + + Vector v1 = CartesianToQtCoords(Vector(rect.l, rect.t)); + Vector v2 = CartesianToQtCoords(Vector(rect.r, rect.b)); + v1 += Vector(-8.0, -8.0); + v2 += Vector(+8.0, +8.0); + painter->setPen(QPen(Qt::red, 2.0, Qt::DashLine)); + painter->drawLine(v1.x, v1.y, v1.x + 24, v1.y); + painter->drawLine(v1.x, v1.y, v1.x, v1.y + 24); + painter->drawLine(v2.x, v1.y, v2.x - 24, v1.y); + painter->drawLine(v2.x, v1.y, v2.x, v1.y + 24); + painter->drawLine(v2.x, v2.y, v2.x - 24, v2.y); + painter->drawLine(v2.x, v2.y, v2.x, v2.y - 24); + painter->drawLine(v1.x, v2.y, v1.x + 24, v2.y); + painter->drawLine(v1.x, v2.y, v1.x, v2.y - 24); + +} + + // 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) { + if (!painter) + return; + 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); + double orthoAngle = -angle + QTR_TAU; Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle)); Vector unit = Vector(cos(-angle), sin(-angle)); @@ -208,12 +314,15 @@ void Painter::DrawArrowHandle(Vector center, double angle) // we don't want our object handle size to depend on the zoom level! void Painter::DrawArrowToLineHandle(Vector center, double angle) { + if (!painter) + return; + 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); + double orthoAngle = -angle + QTR_TAU; Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle)); Vector unit = Vector(cos(-angle), sin(-angle)); @@ -312,7 +421,7 @@ void Painter::DrawArrowhead(Vector head, Vector tail, double size) // We draw the arrowhead aligned along the line from tail to head double angle = Vector(head - tail).Angle(); - double orthoAngle = angle + (PI / 2.0); + double orthoAngle = angle + QTR_TAU; Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle)); Vector unit = Vector(head - tail).Unit(); @@ -337,13 +446,16 @@ void Painter::DrawCrosshair(Vector point) return; Vector screenPoint = CartesianToQtCoords(point); - painter->drawLine(0, screenPoint.y, screenSize.x, screenPoint.y); - painter->drawLine(screenPoint.x, 0, screenPoint.x, screenSize.y); + painter->drawLine(0, screenPoint.y, Global::screenSize.x, screenPoint.y); + painter->drawLine(screenPoint.x, 0, screenPoint.x, Global::screenSize.y); } void Painter::DrawInformativeText(QString text) { + if (!painter) + return; + painter->setFont(*Global::font); QRectF bounds = painter->boundingRect(QRectF(), Qt::AlignVCenter, text); bounds.moveTo(17.0, 17.0);