X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fpainter.cpp;h=853d3502690a494afdeb3635925d275fa087e6c8;hb=1d17841ed1d003060250dc2ef8dd6785fa02a07f;hp=73e5bf6e5fc539cca3984500d1822f9383fde030;hpb=7b7c8ec7d7f5379e09a8b7392f465f41639b0c79;p=architektonas diff --git a/src/painter.cpp b/src/painter.cpp index 73e5bf6..853d350 100644 --- a/src/painter.cpp +++ b/src/painter.cpp @@ -13,16 +13,9 @@ // #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); - - Painter::Painter(QPainter * p/*= NULL*/): painter(p) { } @@ -33,16 +26,16 @@ 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)); + // Convert regular Cartesian coordinates to the inverted Y-axis Qt + // coordinates at the current origin and zoom level. + 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: @@ -51,12 +44,12 @@ origin is -10, -10 and zoom level is 2 (200%) 1st, invert the Y: 10, 10 -> 10, 90 2nd, add origin: 10, 90 -> 0, 80 (no, not right--err, yes, it is) -3rd, aply zoom: 0, 80 -> 0, 40 +3rd, apply zoom: 0, 80 -> 0, 40 or, is it: 1st, invert the Y: 10, 10 -> 10, 90 -2nd, aply zoom: 10, 90 -> 5, 45 +2nd, apply zoom: 10, 90 -> 5, 45 3rd, add origin: 5, 45 -> -5, 35 it depends on whether or not origin is in Qt coords or cartesian. If Qt, then the 1st @@ -74,6 +67,24 @@ 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 +93,23 @@ 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; @@ -111,29 +122,24 @@ 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(); -// NOTE: SCREEN_ZOOM is a kludge to make things look right at screen resolution... - QRectF textBox(-100.0 * zoom * SCREEN_ZOOM, -100.0 * zoom * SCREEN_ZOOM, 200.0 * zoom * SCREEN_ZOOM, 200.0 * zoom * SCREEN_ZOOM); // 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 :-) - float yOffset = -12.0 * zoom * SCREEN_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; + float yOffset = -8.0 * 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 * SCREEN_ZOOM; + angle += HALF_TAU; +// yOffset = 12.0 * Global::zoom * size; + yOffset = 8.0 * 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... @@ -143,11 +149,54 @@ 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()).horizontalAdvance(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()).horizontalAdvance(text); + int textHeight = QFontMetrics(painter->font()).height(); + Point measured((double)textWidth / Global::zoom, (double)textHeight / Global::zoom); + + 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); @@ -157,20 +206,127 @@ 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); } // 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) { + 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 object handles without regard for zoom level; +// we don't want our object handle size to depend on the zoom level! +void Painter::DrawSmallHandle(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), 2.0, 2.0); +} + +// 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 + QTR_TAU; + 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) +{ + 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 + QTR_TAU; + 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) @@ -191,6 +347,22 @@ void Painter::DrawLine(Vector v1, Vector v2) painter->drawLine(QPointF(v1.x, v1.y), QPointF(v2.x, v2.y)); } +void Painter::DrawHLine(double ypos) +{ + double width = Global::screenSize.x / Global::zoom; + Vector v1 = CartesianToQtCoords(Vector(Global::origin.x, ypos)); + Vector v2 = CartesianToQtCoords(Vector(Global::origin.x + width, ypos)); + painter->drawLine(QPointF(v1.x, v1.y), QPointF(v2.x, v2.y)); +} + +void Painter::DrawVLine(double xpos) +{ + double height = Global::screenSize.y / Global::zoom; + Vector v1 = CartesianToQtCoords(Vector(xpos, Global::origin.y)); + Vector v2 = CartesianToQtCoords(Vector(xpos, Global::origin.y + height)); + painter->drawLine(QPointF(v1.x, v1.y), QPointF(v2.x, v2.y)); +} + void Painter::DrawPoint(int x, int y) { if (!painter) @@ -200,6 +372,7 @@ 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) @@ -208,6 +381,31 @@ 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) @@ -216,20 +414,22 @@ void Painter::DrawText(QRectF rect, int type, QString text) painter->drawText(rect, (Qt::AlignmentFlag)type, text); } -void Painter::DrawArrowhead(Vector head, Vector tail) +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); + double orthoAngle = angle + QTR_TAU; Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle)); Vector unit = Vector(head - tail).Unit(); -// NOTE: SCREEN_ZOOM is a kludge to make things look right at scale... - Point p1 = head - (unit * 9.0 * SCREEN_ZOOM); - Point p2 = p1 + (orthogonal * 3.0 * SCREEN_ZOOM); - Point p3 = p1 - (orthogonal * 3.0 * SCREEN_ZOOM); + 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); @@ -240,3 +440,34 @@ void Painter::DrawArrowhead(Vector head, Vector tail) 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) +{ + if (!painter) + return; + + 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, 0xD7))); + painter->drawRoundedRect(textRect, 7.0, 7.0); + + pen = QPen(QColor(0x00, 0x5F, 0xDF)); + painter->setPen(pen); + painter->drawText(bounds, Qt::AlignVCenter, text); +}