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291 lines
7.8 KiB
291 lines
7.8 KiB
/*
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"qtSimpleGraph" - Проект для изучения машинной графики на основе последовательного рисования примитивов
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Copyright (c) 2020 Проскурнев Артем Сергеевич
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Этот файл — часть проекта qtSimpleGraph.
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qtSimpleGraph - свободная программа: вы можете перераспространять ее и/или
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изменять ее на условиях Стандартной общественной лицензии GNU в том виде,
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в каком она была опубликована Фондом свободного программного обеспечения;
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либо версии 3 лицензии, либо (по вашему выбору) любой более поздней
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версии.
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Весы распространяется в надежде, что она будет полезной,
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но БЕЗО ВСЯКИХ ГАРАНТИЙ; даже без неявной гарантии ТОВАРНОГО ВИДА
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или ПРИГОДНОСТИ ДЛЯ ОПРЕДЕЛЕННЫХ ЦЕЛЕЙ. Подробнее см. в Стандартной
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общественной лицензии GNU.
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Вы должны были получить копию Стандартной общественной лицензии GNU
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вместе с этой программой. Если это не так, см.
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<http://www.gnu.org/licenses/>.
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This file is part of qtSimpleGraph.
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qtSimpleGraph is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Vesi is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Vesi. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qtsgraph.h"
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void QTSGraph::Delay(int ms)
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{
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QTime dieTime= QTime::currentTime().addMSecs(ms);
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while (QTime::currentTime() < dieTime)
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QCoreApplication::processEvents(QEventLoop::AllEvents, 50);
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}
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void QTSGraph::Ellipse(int x1, int y1, int x2, int y2)
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{
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QPainter painter(&Canvas);
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painter.setPen(Pen);
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painter.setBrush(Brush);
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painter.drawEllipse(x1, y1, abs(x2-x1), abs(y2-y1));
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update();
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}
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QRgb QTSGraph::GetPixel(int x, int y)
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{
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return Canvas.toImage().pixelColor(x, y).rgba();
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}
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QTSGraph::QTSGraph(int w, int h, int x, int y, QWidget *parent)
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: QMainWindow(parent)
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{
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if(x < 0 || y < 0)
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{
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QDesktopWidget desktop;
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QRect rect = desktop.availableGeometry(desktop.primaryScreen()); // прямоугольник с размерами экрана
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QPoint center = rect.center(); //координаты центра экрана
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x = center.x() - w / 2;
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y = center.y() - h / 2;
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}
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this->setGeometry(x, y, w, h);
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this->setMinimumHeight(h);
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this->setMinimumWidth(w);
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this->setMaximumHeight(h);
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this->setMaximumWidth(w);
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this->setWindowTitle("Рисунок");
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Canvas = QPixmap(w, h);
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Canvas.fill(Qt::white);
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QRgb DefaultColor = 0x00000000;
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Pen = QPen(QBrush(QColor(DefaultColor)), 1);
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Font = QFont();
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Brush = QBrush(QColor(DefaultColor),Qt::NoBrush);
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ResetInterval = 1000;
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ResetTimer = new QTimer();
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connect(ResetTimer, SIGNAL(timeout()), this, SLOT(slotResetTimer()));
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ResetTimer->start(ResetInterval);
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StartTimer = new QTimer();
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connect(StartTimer, SIGNAL(timeout()), this, SLOT(slotStartTimer()));
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StartTimer->start(500);
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}
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QTSGraph::~QTSGraph()
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{
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// Деструктор
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}
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void QTSGraph::Circle(int x, int y, int radius)
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{
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QPainter painter(&Canvas);
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painter.setPen(Pen);
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painter.setBrush(Brush);
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painter.drawEllipse(x - radius, y - radius, radius * 2, radius * 2);
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update();
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}
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bool QTSGraph::MouseClicked()
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{
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QCoreApplication::processEvents(QEventLoop::AllEvents, 50);
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bool m = EventMouseClicked;
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EventMouseClicked = false;
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return m;
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}
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void QTSGraph::OutTextXY(int x, int y, std::string caption)
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{
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QPainter painter(&Canvas);
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painter.setPen(Pen);
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painter.setFont(Font);
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double r, b, sa, ca, sb, cb, xn, yn;
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b = TextDirection*3.14159/180;
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r = sqrt(x * x + y * y);
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sa = y / r;
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ca = x / r;
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sb = sin(b);
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cb = cos(b);
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xn = r * (ca * cb - sa * sb);
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yn = r * (sa * cb + sb * ca);
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painter.translate(x - xn, y - yn);
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painter.rotate(TextDirection);
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painter.drawText(x, y, QString::fromStdString(caption));
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//painter.rotate(-TextDirection);
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update();
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}
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void QTSGraph::PutPixel(int x, int y, QRgb c, int PenWidth)
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{
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QPainter painter(&Canvas);
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painter.setPen(QPen(QBrush(QColor(c)), PenWidth));
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painter.drawPoint(x, y);
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update();
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}
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int QTSGraph::ReadKey()
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{
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if(IDPressedKey == -1)
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{
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while(!KeyPressed() && this->isVisible())
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Delay(1);
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}
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int t = IDPressedKey;
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IDPressedKey = -1;
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return t;
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}
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int QTSGraph::ReadMouseButton()
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{
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if(IDMouseButton == -1)
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{
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while(!MouseClicked() && this->isVisible())
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Delay(1);
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}
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int t = IDMouseButton;
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IDMouseButton = -1;
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return t;
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}
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void QTSGraph::Rectangle(int x1, int y1, int x2, int y2)
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{
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QPainter painter(&Canvas);
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painter.setPen(Pen);
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painter.setBrush(Brush);
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painter.drawRect(x1, y1, x2 - x1, y2 - y1);
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update();
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}
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void QTSGraph::SetColor(const QColor &c)
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{
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Pen.setColor(c);
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}
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void QTSGraph::SetColor(const QRgb c)
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{
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Pen.setColor(QColor(c));
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}
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void QTSGraph::SetFillStyle(int Pattern, QRgb Color)
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{
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Brush.setStyle(Qt::BrushStyle(Pattern));
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Brush.setColor(QColor(Color));
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}
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void QTSGraph::SetPenStyle(int PenWidth, int PenStyle)
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{
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Pen.setWidth(PenWidth);
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Pen.setStyle(Qt::PenStyle(PenStyle));
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}
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void QTSGraph::SetPenWidth(int PenWidth)
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{
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Pen.setWidth(PenWidth);
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}
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void QTSGraph::SetTextStyle(int idFont, int Direction, int CharSize)
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{
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QString f;
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if(idFont == 0) f = "serif";
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else if(idFont == 1) f = "sans";
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else if(idFont == 3) f = "mono";
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TextDirection = Direction;
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Font.setFamily(f);
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Font.setPointSize(CharSize);
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}
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void QTSGraph::Line(int x1, int y1, int x2, int y2)
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{
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QPainter painter(&Canvas);
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painter.setPen(Pen);
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painter.drawLine(x1, y1, x2, y2);
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update();
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}
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bool QTSGraph::KeyPressed()
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{
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QCoreApplication::processEvents(QEventLoop::AllEvents, 50);
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bool m = EventKeyPressed;
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EventKeyPressed = false;
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return m;
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}
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void QTSGraph::slotStartTimer()
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{
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StartTimer->stop();
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PaintBox();
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}
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void QTSGraph::slotResetTimer()
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{
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ResetTimer->stop();
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EventKeyPressed = false;
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EventMouseClicked = false;
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}
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void QTSGraph::paintEvent(QPaintEvent *event)
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{
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QPainter p(this);
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p.drawPixmap(0, 0, Canvas);
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}
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void QTSGraph::mousePressEvent(QMouseEvent *event)
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{
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ResetTimer->stop();
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EventMouseClicked = true;
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if (event->buttons() & Qt::LeftButton)
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{
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// Левая кнопка
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IDMouseButton = 1;
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}
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else if (event->buttons() & Qt::RightButton)
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{
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// Правая кнопка
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IDMouseButton = 2;
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}
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else if (event->buttons() & Qt::MiddleButton)
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{
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// Средняя кнопка
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IDMouseButton = 3;
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}
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ResetTimer->start(ResetInterval);
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}
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void QTSGraph::keyPressEvent(QKeyEvent *event)
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{
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ResetTimer->stop();
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EventKeyPressed = true;
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IDPressedKey = event->key();
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if (IDPressedKey == Qt::Key_Escape)
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{
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// Нажатие Esc
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}
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ResetTimer->start(ResetInterval);
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}
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void QTSGraph::closeEvent(QCloseEvent *event)
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{
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//Закрытие окна
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delete ResetTimer;
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delete StartTimer;
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exit(0);
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}
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