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44fa9b9932
* Qt drawing works with freetype. needs polish and testing non-freetype drawing doesn't work still * make the Qt rendering anti-aliased * non-freetype fonts work in Qt With the giant caveat that you need a QGuiApplication to use fonts. We try to detect that * cleanup * changes in response to review * add qt support to CI builds * fix VS build problem * try resolving a linux link error * Update linux_build.yml * Update linux_build.yml * another attempt to get the linux CI builds working * getting closer? * Update linux_build.yml * disable the qt CI builds on windows
137 lines
4.3 KiB
C++
137 lines
4.3 KiB
C++
//
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// @@ All Rights Reserved @@
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// This file is part of the RDKit.
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// The contents are covered by the terms of the BSD license
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// which is included in the file license.txt, found at the root
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// of the RDKit source tree.
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//
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// Original author: David Cosgrove (AstraZeneca)
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// 19th June 2014
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//
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#include "MolDraw2DQt.h"
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#ifdef RDK_BUILD_FREETYPE_SUPPORT
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#include <GraphMol/MolDraw2D/DrawTextFTQt.h>
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#else
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#include <GraphMol/MolDraw2D/DrawTextQt.h>
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#endif
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#include <QPainter>
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#include <QString>
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using namespace boost;
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using namespace std;
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namespace RDKit {
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// ****************************************************************************
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MolDraw2DQt::MolDraw2DQt(int width, int height, QPainter &qp, int panelWidth,
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int panelHeight, bool noFreetype)
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: MolDraw2D(width, height, panelWidth, panelHeight), d_qp(qp) {
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initDrawing();
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initTextDrawer(noFreetype);
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}
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void MolDraw2DQt::initDrawing() {
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d_qp.setRenderHint(QPainter::RenderHint::Antialiasing);
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}
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void MolDraw2DQt::initTextDrawer(bool noFreetype) {
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double max_fnt_sz = drawOptions().maxFontSize;
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double min_fnt_sz = drawOptions().minFontSize;
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if (noFreetype) {
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text_drawer_.reset(new DrawTextQt(max_fnt_sz, min_fnt_sz, d_qp));
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} else {
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#ifdef RDK_BUILD_FREETYPE_SUPPORT
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try {
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text_drawer_.reset(new DrawTextFTQt(max_fnt_sz, min_fnt_sz,
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drawOptions().fontFile, d_qp));
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} catch (std::runtime_error &e) {
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BOOST_LOG(rdWarningLog)
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<< e.what() << std::endl
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<< "Falling back to native Qt text handling." << std::endl;
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text_drawer_.reset(new DrawTextQt(max_fnt_sz, min_fnt_sz, d_qp));
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}
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#else
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text_drawer_.reset(new DrawTextQt(max_fnt_sz, min_fnt_sz, d_qp));
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#endif
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}
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}
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// ****************************************************************************
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void MolDraw2DQt::setColour(const DrawColour &col) {
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MolDraw2D::setColour(col);
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QColor this_col(int(255.0 * col.r), int(255.0 * col.g), int(255.0 * col.b),
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int(255.0 * col.a));
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QPen pen(this_col);
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pen.setJoinStyle(Qt::RoundJoin);
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d_qp.setPen(pen);
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QBrush brush(this_col);
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brush.setStyle(Qt::SolidPattern);
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d_qp.setBrush(brush);
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}
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// ****************************************************************************
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void MolDraw2DQt::drawLine(const Point2D &cds1, const Point2D &cds2) {
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Point2D c1 = getDrawCoords(cds1);
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Point2D c2 = getDrawCoords(cds2);
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const DashPattern &dashes = dash();
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QPen pen = d_qp.pen();
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if (dashes.size()) {
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QVector<qreal> dd;
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for (unsigned int di = 0; di < dashes.size(); ++di) dd << dashes[di];
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pen.setDashPattern(dd);
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} else {
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pen.setStyle(Qt::SolidLine);
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}
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pen.setWidth(lineWidth());
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d_qp.setPen(pen);
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d_qp.drawLine(QPointF(c1.x, c1.y), QPointF(c2.x, c2.y));
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}
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// ****************************************************************************
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// draw the char, with the bottom left hand corner at cds
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void MolDraw2DQt::drawChar(char c, const Point2D &cds) {
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QRectF br = d_qp.boundingRect(0, 0, 100, 100, Qt::AlignLeft | Qt::AlignBottom,
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QString(c));
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d_qp.drawText(QRectF(cds.x, cds.y - br.height(), br.width(), br.height()),
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Qt::AlignLeft | Qt::AlignBottom, QString(c), &br);
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}
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// ****************************************************************************
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void MolDraw2DQt::drawPolygon(const vector<Point2D> &cds) {
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PRECONDITION(cds.size() >= 3, "must have at least three points");
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d_qp.save();
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QBrush brush = d_qp.brush();
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if (fillPolys())
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brush.setStyle(Qt::SolidPattern);
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else
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brush.setStyle(Qt::NoBrush);
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d_qp.setBrush(brush);
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QPointF *points = new QPointF[cds.size()];
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for (unsigned int i = 0; i < cds.size(); ++i) {
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Point2D lc = getDrawCoords(cds[i]);
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points[i] = QPointF(lc.x, lc.y);
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}
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d_qp.drawConvexPolygon(points, cds.size());
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d_qp.restore();
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delete[] points;
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}
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// ****************************************************************************
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void MolDraw2DQt::clearDrawing() {
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QColor this_col(int(255.0 * drawOptions().backgroundColour.r),
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int(255.0 * drawOptions().backgroundColour.g),
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int(255.0 * drawOptions().backgroundColour.b),
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int(255.0 * drawOptions().backgroundColour.a));
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d_qp.setBackground(QBrush(this_col));
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d_qp.fillRect(offset().x, offset().y, width(), height(), this_col);
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}
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} // namespace RDKit
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