X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fpainter.cpp;h=5bd5ae412eb7681f78d133e7f170b4bb4e733da5;hb=e06428cc60e07d9ef33af8b559d60f23894130fb;hp=0dfdf3c76471920a33ae7e679524f80bc8ebd73a;hpb=043ecf4d074909ba2f7f53237962f9eaa72f19c2;p=architektonas diff --git a/src/painter.cpp b/src/painter.cpp index 0dfdf3c..5bd5ae4 100644 --- a/src/painter.cpp +++ b/src/painter.cpp @@ -13,36 +13,39 @@ // #include "painter.h" - +#include "global.h" #include "mathconstants.h" // Set class variable defaults -Vector Painter::origin(-10.0, -10.0); -double Painter::zoom = 1.0; -Vector Painter::screenSize(200.0, 200.0); +//Vector Painter::origin(-10.0, -10.0); +//double Painter::zoom = 1.0; +//Vector Painter::screenSize(200.0, 200.0); Painter::Painter(QPainter * p/*= NULL*/): painter(p) { } + Painter::~Painter() { } + 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)); } + 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: @@ -66,6 +69,7 @@ The way we calculate the Cartesian to Qt shows the 2nd (origin is cartesian) to */ } + void Painter::SetRenderHint(int hint) { if (!painter) @@ -74,6 +78,27 @@ void Painter::SetRenderHint(int hint) painter->setRenderHint((QPainter::RenderHint)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) @@ -82,23 +107,26 @@ void Painter::SetBrush(QBrush brush) painter->setBrush(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); } -void Painter::DrawAngledText(Vector center, double angle, QString text) + +void Painter::DrawAngledText(Vector center, double angle, QString text, double size) { if (!painter) return; @@ -111,28 +139,22 @@ void Painter::DrawAngledText(Vector center, double angle, QString text) // 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, -100, 200, 200); // 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. - // If zoomable, this is incorrect: - // (Added zoom, so this is correct now :-) - int yOffset = -12 * zoom; + // 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 * Global::zoom * size; // Fix text so it isn't upside down... if ((angle > PI * 0.5) && (angle < PI * 1.5)) { angle += PI; - yOffset = 12 * zoom; + yOffset = 12.0 * Global::zoom * size; } -#if 0 - Vector offset = CartesianToQtCoords(Vector(0, yOffset)); - textBox.translate(offset.x, offset.y); -#else textBox.translate(0, yOffset); -#endif painter->save(); painter->translate(center.x, center.y); // Angles are backwards in the Qt coord system, so we flip ours... @@ -142,11 +164,36 @@ void Painter::DrawAngledText(Vector center, double angle, QString text) painter->restore(); } + +// +// 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(); +} + + void Painter::DrawArc(Vector center, double radius, double startAngle, double span) { 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); @@ -154,21 +201,73 @@ void Painter::DrawArc(Vector center, double radius, double startAngle, double sp painter->drawArc(rectangle, angle1, angle2); } + void Painter::DrawEllipse(Vector center, double axis1, double axis2) { // 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); } + // 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::DrawHandle(Vector center) { 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 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) @@ -179,6 +278,7 @@ void Painter::DrawLine(int x1, int y1, int x2, int y2) painter->drawLine(v1.x, v1.y, v2.x, v2.y); } + void Painter::DrawLine(Vector v1, Vector v2) { if (!painter) @@ -189,6 +289,7 @@ void Painter::DrawLine(Vector v1, Vector v2) painter->drawLine(QPointF(v1.x, v1.y), QPointF(v2.x, v2.y)); } + void Painter::DrawPoint(int x, int y) { if (!painter) @@ -198,6 +299,8 @@ void Painter::DrawPoint(int x, int y) painter->drawPoint(v.x, v.y); } + +// The rect passed in is in Qt coordinates... void Painter::DrawRoundedRect(QRectF rect, double radiusX, double radiusY) { if (!painter) @@ -206,6 +309,34 @@ void Painter::DrawRoundedRect(QRectF rect, double radiusX, double radiusY) painter->drawRoundedRect(rect, radiusX, 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) + 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)); + painter->drawRect(screenRect); +} + + void Painter::DrawText(QRectF rect, int type, QString text) { if (!painter) @@ -213,3 +344,62 @@ void Painter::DrawText(QRectF rect, int type, QString text) painter->drawText(rect, (Qt::AlignmentFlag)type, 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 + double angle = Vector(head - tail).Angle(); + double orthoAngle = angle + (PI / 2.0); + Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle)); + Vector unit = Vector(head - tail).Unit(); + + Point p1 = head - (unit * 9.0 * size); + Point p2 = p1 + (orthogonal * 3.0 * size); + Point p3 = p1 - (orthogonal * 3.0 * size); + + Point p4 = CartesianToQtCoords(head); + Point p5 = CartesianToQtCoords(p2); + Point p6 = CartesianToQtCoords(p3); + + arrow << QPointF(p4.x, p4.y) << QPointF(p5.x, p5.y) << QPointF(p6.x, p6.y); + + 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, Global::screenSize.x, screenPoint.y); + painter->drawLine(screenPoint.x, 0, screenPoint.x, Global::screenSize.y); +} + + +void Painter::DrawInformativeText(QString text) +{ + painter->setFont(*Global::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); +} +