X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fpainter.cpp;h=5bd5ae412eb7681f78d133e7f170b4bb4e733da5;hb=e06428cc60e07d9ef33af8b559d60f23894130fb;hp=308cab6b7bd87ed587cb884ae52113f1173abaad;hpb=bb8d0671717bac2c5350e34024273381be1d8175;p=architektonas diff --git a/src/painter.cpp b/src/painter.cpp index 308cab6..5bd5ae4 100644 --- a/src/painter.cpp +++ b/src/painter.cpp @@ -13,14 +13,14 @@ // #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) @@ -37,7 +37,7 @@ 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)); } @@ -45,7 +45,7 @@ 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: @@ -79,6 +79,26 @@ 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) @@ -88,21 +108,21 @@ 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); } @@ -119,19 +139,19 @@ 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)) { angle += PI; - yOffset = 12.0 * zoom * size; + yOffset = 12.0 * Global::zoom * size; } textBox.translate(0, yOffset); @@ -145,11 +165,35 @@ 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(); +} + + 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); @@ -162,7 +206,7 @@ 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); } @@ -171,11 +215,59 @@ void Painter::DrawEllipse(Vector center, double axis1, double axis2) 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) @@ -208,7 +300,7 @@ void Painter::DrawPoint(int x, int y) } -// This is drawn in Qt coordinates... +// The rect passed in is in Qt coordinates... void Painter::DrawRoundedRect(QRectF rect, double radiusX, double radiusY) { if (!painter) @@ -218,9 +310,8 @@ void Painter::DrawRoundedRect(QRectF rect, double radiusX, double radiusY) } -// This is drawn partially in Cartesian coordinates, and partially in Qt -// coordinates. The rect itself is in Cartesian but we want to pad it by a set -// number of pixels. +// 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) @@ -257,6 +348,9 @@ 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 @@ -278,3 +372,34 @@ 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, 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); +} +