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75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
#ifndef SCANTARGETWIDGET_H
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#define SCANTARGETWIDGET_H
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#include <QOpenGLWidget>
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#include "../../Outputs/OpenGL/ScanTarget.hpp"
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#include "../../Machines/ScanProducer.hpp"
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#include "../../ClockReceiver/VSyncPredictor.hpp"
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class ScanTargetWidget : public QOpenGLWidget {
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public:
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ScanTargetWidget(QWidget *parent = nullptr);
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~ScanTargetWidget();
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/// Sets the current scan producer; this scan producer will be
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/// handed a suitable scan target as soon as one exists.
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void setScanProducer(MachineTypes::ScanProducer *);
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/// Destructs the current scan target
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void stop();
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struct MouseDelegate {
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virtual void setMouseIsCaptured(bool) = 0;
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virtual void moveMouse(QPoint) = 0;
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virtual void setButtonPressed(int index, bool isPressed) = 0;
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};
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/// If a delegate is assigned then this widget will respond to clicks by capturing
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/// the mouse, unless and until either ::stop() is called or ctrl+escape is pressed.
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/// Mouse events can be tracked by the main window while the mouse is captured.
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void setMouseDelegate(MouseDelegate *);
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/// @returns @c true if the mouse is currently captured; @c false otherwise.
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bool isMouseCaptured();
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protected:
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void initializeGL() override;
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void resizeGL(int w, int h) override;
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void paintGL() override;
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void mousePressEvent(QMouseEvent *) override;
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void mouseReleaseEvent(QMouseEvent *) override;
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void mouseMoveEvent(QMouseEvent *) override;
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void keyPressEvent(QKeyEvent *) override;
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void releaseMouse();
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void setMouseButtonPressed(Qt::MouseButton, bool);
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private:
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// This should be created only once there's an OpenGL context. So it
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// can't be done at creation time.
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std::unique_ptr<Outputs::Display::OpenGL::ScanTarget> scanTarget;
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Time::VSyncPredictor vsyncPredictor;
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bool isConnected = false;
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GLuint framebuffer = 0;
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MachineTypes::ScanProducer *producer = nullptr;
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Time::Nanos requestedRedrawTime = 0;
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void setDefaultClearColour();
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int rawWidth = 0, rawHeight = 0;
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int scaledWidth = 0, scaledHeight = 0;
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float outputScale = 1.0f;
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void resize();
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MouseDelegate *mouseDelegate = nullptr;
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bool mouseIsCaptured = false;
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private slots:
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void vsync();
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};
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#endif // SCANTARGETWIDGET_H
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