Detailed Description

This is the main application base class for the MinGfx Toolkit.

Create a Subclass:

To create your own graphics application, you should create a subclass of GraphicsApp and then override some key functions:

User Input: To get input from the keyboard and mouse, override OnMouseMove() and/or the other On...() functions.
Drawing Graphics: To draw graphics override one or more of the Draw*() functions.
- DrawUsingNanoVG() is the right place to make 2D drawing calls using the nanovg library.
- DrawUsingOpenGL() is the right place to make 2D or 3D drawing calls using OpenGL. This includes drawing using the Mesh, QuickShapes, DefaultShader, ShaderProgram, and all other MinGfx classes since these are all based on OpenGL.
- InitNanoGUI() is the right place to create nanogui windows to add a 2D user interface to your app.
- InitOpenGL() is the right place to load textures, meshes, shaders, and other graphics objects that can only be created after the OpenGL context exists.
Physics, Animation, AI, etc.: Override the UpdateSimulation() function to do other non-graphics calculations required by your program. This is called automatically once per frame.

Keep in mind that internally the app uses a rendering loop that looks something like this:

InitNanoGUI(); // your hook for initializing NanoGUI widgets
InitOpenGL();  // your hook for initializing OpenGL graphics
while (!program_ready_to_close) {
    // user input
    internal_get_input_events_from_operating_system();
    OnMouseMove();  // your hook for processing input
    On*();          // all other event callbacks -- your hook for processing input
 
    // phyics, etc.
    UpdateSimulation(); // your hook for physics, animation, AI, etc.
 
    // draw graphics
    internal_render_gui_elements_using_nanogui();
    DrawUsingNanoVG(); // your hook for drawing 2D vector graphics
    DrawUsingOpenGL(); // your hook for 2D/3D rendering with OpenGL
}

A Complete Example with GUI Widgets

If you wish to add some buttons, sliders, etc. in your application, you can do this inside GraphicsApp by accessing the NanoGUI library. You will need to pass NanoGUI a nanogui::screen object, which you can get from the screen() function. NanoGui setup should be done in the constructor, like this:

#include <mingfx.h>
using namespace mingfx;
 
class MyApp : public GraphcisApp {
public:
   MyApp() : GraphicsApp(1024,768, "My Amazing App") {
   }
   
   virtual ~MyApp() {}
 
   void InitNanoGUI() {
       // Setup the GUI window
       nanogui::Window *window = new nanogui::Window(screen(), "My GUI Panel");
       window->setPosition(Eigen::Vector2i(10, 10));
       window->setSize(Eigen::Vector2i(400,200));
       window->setLayout(new nanogui::GroupLayout());
 
       nanogui::Button pause_btn = new nanogui::Button(window, "Pause");
       pause_btn->setCallback(std::bind(&MyApp::OnPauseBtnPressed, this));
       pause_btn->setTooltip("Toggle playback.");
 
       screen()->performLayout();
   }
 
   void InitOpenGL() {
       glClearColor(0.0, 0.0, 0.0, 1);
   }
 
   // this callback is for the nanogui pause_btn defined above
   void OnPauseBtnPressed() {
       std::cout << "Pause pressed." << std::endl;  
   }
   
   // this callback is built into the base GraphicsApp class
   void OnMouseMove(const Point2 &pos, const Vector2 &delta) {
       std::cout << "Mouse moved to " << pos << std::endl;
   }
 
   void DrawUsingOpenGL() {
       Matrix4 model = Matrix4::Translation(Vector3(-1,0,0)) * Matrix4::Scale(Vector3(0.5, 0.5, 0.5));
       Matrix4 view = Matrix4::LookAt(Point3(0,0,3), Point3(0,0,0), Vector3(0,1,0));
       Matrix4 proj = Matrix4::Perspective(60.0, aspect_ratio(), 0.1, 10.0);
       quick_shapes_.DrawCube(model, view, proj, Color(1,1,1));
   }
 
private:
   QuickShapes quick_shapes_;
};
 
 
int main(int argc, const char *argv[]) {
   MyApp app;
   app.Run();
   return 0;
}

Definition at line 135 of file graphics_app.h.

#include <graphics_app.h>

Public Member Functions
	GraphicsApp (int width, int height, const std::string &caption)
	Constructs a new app but does not yet run it. More...

virtual	~GraphicsApp ()
	The destructor will shutdown the graphics system and window. More...

virtual void	OnMouseMove (const Point2 &pos, const Vector2 &delta)
	If the mouse has moved in the past frame and no mouse buttons are currently pressed, then this callback function will be called to report the new position of the mouse to you. More...

virtual void	OnLeftMouseDown (const Point2 &pos)
	If the mouse button was pressed down since the last frame, then this function will be called to notify you. More...

virtual void	OnLeftMouseDrag (const Point2 &pos, const Vector2 &delta)
	If the mouse button is held down and the mouse has moved in the past frame then this function will be called to tell you that a "dragging" operation is happening. More...

virtual void	OnLeftMouseUp (const Point2 &pos)
	If the mouse button was released since the last frame, then this function will be called to notify you. More...

virtual void	OnMiddleMouseDown (const Point2 &pos)
	If the mouse button was pressed down since the last frame, then this function will be called to notify you. More...

virtual void	OnMiddleMouseDrag (const Point2 &pos, const Vector2 &delta)
	If the mouse button is held down and the mouse has moved in the past frame then this function will be called to tell you that a "dragging" operation is happening. More...

virtual void	OnMiddleMouseUp (const Point2 &pos)
	If the mouse button was released since the last frame, then this function will be called to notify you. More...

virtual void	OnRightMouseDown (const Point2 &pos)
	If the mouse button was pressed down since the last frame, then this function will be called to notify you. More...

virtual void	OnRightMouseDrag (const Point2 &pos, const Vector2 &delta)
	If the mouse button is held down and the mouse has moved in the past frame then this function will be called to tell you that a "dragging" operation is happening. More...

virtual void	OnRightMouseUp (const Point2 &pos)
	If the mouse button was released since the last frame, then this function will be called to notify you. More...

virtual void	OnKeyDown (const char *c, int modifiers)
	Transforms a keyboard down event into the actual character typed. More...

virtual void	OnKeyRepeat (const char *c, int modifiers)
	Transforms a keyboard repeat event into the actual character typed. More...

virtual void	OnKeyUp (const char *c, int modifiers)
	Transforms a keyboard up event into the actual character typed. More...

virtual void	OnSpecialKeyDown (int key, int scancode, int modifiers)
	The values for key, scancode, and modifiers are documented here: http://www.glfw.org/docs/latest/group__keys.html. More...

virtual void	OnSpecialKeyRepeat (int key, int scancode, int modifiers)
	The values for key, scancode, and modifiers are documented here: http://www.glfw.org/docs/latest/group__keys.html. More...

virtual void	OnSpecialKeyUp (int key, int scancode, int modifiers)
	The values for key, scancode, and modifiers are documented here: http://www.glfw.org/docs/latest/group__keys.html. More...

virtual void	OnWindowResize (int new_width, int new_height)
	Override this to respond when the graphics window and/or framebuffer are resized, either by the user dragging the window or through a call to ResizeWindow(). More...

virtual void	Run ()
	After creating a new GraphicsApp, call this to start the app's mainloop. More...

virtual void	InitNanoGUI ()
	Called at the beginning of the Run() method. More...

virtual void	InitOpenGL ()
	Override this to initialize the OpenGL context with textures, vertex buffers, etc. More...

virtual void	UpdateSimulation (double dt)
	Called once per frame. More...

virtual void	DrawUsingNanoVG (NVGcontext *ctx)
	Override this to draw graphics using the nanovg vector graphics library, which provides an easy way to draw 2D shapes to the screen. More...

virtual void	DrawUsingOpenGL ()
	Override this to draw graphics using raw OpenGL 2D or 3D graphics calls. More...

virtual bool	IsKeyDown (int key)
	True if the specified is is currently held down. Uses the GLFW key codes found here: http://www.glfw.org/docs/latest/group__keys.html. More...

virtual bool	IsLeftMouseDown ()
	True if the left mouse button is currently held down. More...

virtual bool	IsMiddleMouseDown ()
	True if the middle mouse button is currently held down. More...

virtual bool	IsRightMouseDown ()
	True if the right mouse button is currently held down. More...

virtual int	window_width ()
	Returns the current width of the client area of the window in pixels. More...

virtual int	window_height ()
	Returns the current height of the client area of the window in pixels. More...

virtual int	framebuffer_width ()
	Returns the current width of the framebuffer in pixels. More...

virtual int	framebuffer_height ()
	Returns the current height of the framebuffer in pixels. More...

virtual float	aspect_ratio ()
	Returns width/height for the current shape of the window. More...

virtual Point2	PixelsToNormalizedDeviceCoords (const Point2 &pointInPixels)
	Transforms a point in viewport coordinates (pixels where top left = (0,0) and bottom right = (window_width()-1, window_height()-1)) to normalized device coordinates, (top left = (-1,1) bottom right (1,-1)). More...

virtual Point2	NormalizedDeviceCoordsToPixels (const Point2 &pointInNDC)
	Transforms a point in normalized device coordinates (top left = (-1,1) bottom right (1,-1)) to pixels (top left = (0,0), bottom right = (window width-1, window height-1)) More...

virtual Vector2	PixelsToNormalizedDeviceCoords (const Vector2 &vectorInPixels)
	Transforms a vector in viewport coordinates (pixels where top left = (0,0) and bottom right = (window width-1, window height-1)) to normalized device coordinates, (top left = (-1,1) bottom right (1,-1)). More...

virtual Vector2	NormalizedDeviceCoordsToPixels (const Vector2 &pointInNDC)
	Transforms a vector in normalized device coordinates (top left = (-1,1) bottom right (1,-1)) to pixels (top left = (0,0), bottom right = (window width-1, window height-1)) More...

virtual float	ReadZValueAtPixel (const Point2 &pointInPixels, unsigned int whichBuffer=GL_BACK)
	Returns the z buffer value under the specified pixel. z will be 0 at the near plane and +1 at the far plane. More...

virtual nanogui::Screen *	screen ()
	Access to the underlying NanoGUI Screen object. More...

virtual GLFWwindow *	window ()
	Access to the underlying GLFWwindow object. More...

virtual void	ResizeWindow (int new_width, int new_height)
	Cause the graphics windows to resize programmatically rather than by dragging on the corner manually. More...

virtual void	InitGraphicsContext ()
	Users cannot make any graphics calls (e.g., setting the clear color, saving mesh data to the GPU) until the graphics context is initialized by calling this method. More...

Constructor & Destructor Documentation

◆ GraphicsApp()

mingfx::GraphicsApp::GraphicsApp	(	int	width,
		int	height,
		const std::string &	caption
	)

Constructs a new app but does not yet run it.

Parameters

width	The width of the client area of the window in pixels.
height	The height of the client area of the window in pixels.
caption	The caption for the window's title bar.

◆ ~GraphicsApp()

virtual mingfx::GraphicsApp::~GraphicsApp ( )

virtual

The destructor will shutdown the graphics system and window.

Member Function Documentation

◆ aspect_ratio()

virtual float mingfx::GraphicsApp::aspect_ratio ( )

virtual

Returns width/height for the current shape of the window.

◆ DrawUsingNanoVG()

virtual void mingfx::GraphicsApp::DrawUsingNanoVG ( NVGcontext * ctx )

inlinevirtual

Override this to draw graphics using the nanovg vector graphics library, which provides an easy way to draw 2D shapes to the screen.

Definition at line 311 of file graphics_app.h.

◆ DrawUsingOpenGL()

virtual void mingfx::GraphicsApp::DrawUsingOpenGL ( )

inlinevirtual

Override this to draw graphics using raw OpenGL 2D or 3D graphics calls.

Definition at line 317 of file graphics_app.h.

◆ framebuffer_height()

virtual int mingfx::GraphicsApp::framebuffer_height ( )

virtual

Returns the current height of the framebuffer in pixels.

Note that on some displays (e.g., Mac Retina) the framebuffer is larger than the window.

◆ framebuffer_width()

virtual int mingfx::GraphicsApp::framebuffer_width ( )

virtual

Returns the current width of the framebuffer in pixels.

Note that on some displays (e.g., Mac Retina) the framebuffer is larger than the window.

◆ InitGraphicsContext()

virtual void mingfx::GraphicsApp::InitGraphicsContext ( )

virtual

Users cannot make any graphics calls (e.g., setting the clear color, saving mesh data to the GPU) until the graphics context is initialized by calling this method.

It is called automatically by the Run() method before calling the InitNanoGUI() and InitOpenGL() methods. So, users should place all of their graphics initialization code inside one of those two methods.

◆ InitNanoGUI()

virtual void mingfx::GraphicsApp::InitNanoGUI ( )

inlinevirtual

Called at the beginning of the Run() method.

Override this to initialize any NanoGUI graphics related properties including 2D windows, buttons, sliders, etc...

IMPORTANT: Put any NanoGUI initialization code here, NOT in the constructors of the classes that you create, or, create your classes from within this function. The graphics calls will fail if the OpenGL context has not yet been initialized, and it is not guaranteed to be initialized until this function has been called.

Definition at line 284 of file graphics_app.h.

◆ InitOpenGL()

virtual void mingfx::GraphicsApp::InitOpenGL ( )

inlinevirtual

Override this to initialize the OpenGL context with textures, vertex buffers, etc.

that you will use later inside DrawUsingOpenGL(). This InitOpenGL() function is called once on program startup just after the OpenGL drawing context is created.

IMPORTANT: Put any OpenGL initialization code here, NOT in the constructors of the classes that you create, or, create your classes from within this function. The graphics calls will fail if the OpenGL context has not yet been initialized, and it is not guaranteed to be initialized until this function has been called.

Definition at line 297 of file graphics_app.h.

◆ IsKeyDown()

virtual bool mingfx::GraphicsApp::IsKeyDown ( int key )

virtual

True if the specified is is currently held down. Uses the GLFW key codes found here: http://www.glfw.org/docs/latest/group__keys.html.

◆ IsLeftMouseDown()

virtual bool mingfx::GraphicsApp::IsLeftMouseDown ( )

virtual

True if the left mouse button is currently held down.

◆ IsMiddleMouseDown()

virtual bool mingfx::GraphicsApp::IsMiddleMouseDown ( )

virtual

True if the middle mouse button is currently held down.

◆ IsRightMouseDown()

virtual bool mingfx::GraphicsApp::IsRightMouseDown ( )

virtual

True if the right mouse button is currently held down.

◆ NormalizedDeviceCoordsToPixels() [1/2]

virtual Point2 mingfx::GraphicsApp::NormalizedDeviceCoordsToPixels ( const Point2 & pointInNDC )

virtual

Transforms a point in normalized device coordinates (top left = (-1,1) bottom right (1,-1)) to pixels (top left = (0,0), bottom right = (window width-1, window height-1))

◆ NormalizedDeviceCoordsToPixels() [2/2]

virtual Vector2 mingfx::GraphicsApp::NormalizedDeviceCoordsToPixels ( const Vector2 & pointInNDC )

virtual

Transforms a vector in normalized device coordinates (top left = (-1,1) bottom right (1,-1)) to pixels (top left = (0,0), bottom right = (window width-1, window height-1))

◆ OnKeyDown()

virtual void mingfx::GraphicsApp::OnKeyDown	(	const char *	c,
		int	modifiers
	)

inlinevirtual

Transforms a keyboard down event into the actual character typed.

Parameters

c	The character for the key that was pressed.
modifiers	If any modifiers (Alt, Ctrl, Shift, etc.) were held at the same time, then these are encoded in this int. See the detailed description here: http://www.glfw.org/docs/latest/group__mods.html

Definition at line 225 of file graphics_app.h.

◆ OnKeyRepeat()

virtual void mingfx::GraphicsApp::OnKeyRepeat	(	const char *	c,
		int	modifiers
	)

inlinevirtual

Transforms a keyboard repeat event into the actual character typed.

Parameters

c	The character for the key that was pressed.
modifiers	If any modifiers (Alt, Ctrl, Shift, etc.) were held at the same time, then these are encoded in this int. See the detailed description here: http://www.glfw.org/docs/latest/group__mods.html

Definition at line 233 of file graphics_app.h.

◆ OnKeyUp()

virtual void mingfx::GraphicsApp::OnKeyUp	(	const char *	c,
		int	modifiers
	)

inlinevirtual

Transforms a keyboard up event into the actual character typed.

Parameters

c	The character for the key that was pressed.
modifiers	If any modifiers (Alt, Ctrl, Shift, etc.) were held at the same time, then these are encoded in this int. See the detailed description here: http://www.glfw.org/docs/latest/group__mods.html

Definition at line 241 of file graphics_app.h.

◆ OnLeftMouseDown()

virtual void mingfx::GraphicsApp::OnLeftMouseDown ( const Point2 & pos )

inlinevirtual

If the mouse button was pressed down since the last frame, then this function will be called to notify you.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width(), window_height()) is the bottom right corner.

Definition at line 174 of file graphics_app.h.

◆ OnLeftMouseDrag()

virtual void mingfx::GraphicsApp::OnLeftMouseDrag	(	const Point2 &	pos,
		const Vector2 &	delta
	)

inlinevirtual

If the mouse button is held down and the mouse has moved in the past frame then this function will be called to tell you that a "dragging" operation is happening.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width(), window_height()) is the bottom right corner.
delta	This is the change in the position of the mouse in pixels since the last frame.

Definition at line 187 of file graphics_app.h.

◆ OnLeftMouseUp()

virtual void mingfx::GraphicsApp::OnLeftMouseUp ( const Point2 & pos )

inlinevirtual

If the mouse button was released since the last frame, then this function will be called to notify you.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width()-1, window_height()-1) is the bottom right corner.

Definition at line 196 of file graphics_app.h.

◆ OnMiddleMouseDown()

virtual void mingfx::GraphicsApp::OnMiddleMouseDown ( const Point2 & pos )

inlinevirtual

If the mouse button was pressed down since the last frame, then this function will be called to notify you.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width(), window_height()) is the bottom right corner.

Definition at line 200 of file graphics_app.h.

◆ OnMiddleMouseDrag()

virtual void mingfx::GraphicsApp::OnMiddleMouseDrag	(	const Point2 &	pos,
		const Vector2 &	delta
	)

inlinevirtual

If the mouse button is held down and the mouse has moved in the past frame then this function will be called to tell you that a "dragging" operation is happening.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width(), window_height()) is the bottom right corner.
delta	This is the change in the position of the mouse in pixels since the last frame.

Definition at line 203 of file graphics_app.h.

◆ OnMiddleMouseUp()

virtual void mingfx::GraphicsApp::OnMiddleMouseUp ( const Point2 & pos )

inlinevirtual

If the mouse button was released since the last frame, then this function will be called to notify you.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width()-1, window_height()-1) is the bottom right corner.

Definition at line 206 of file graphics_app.h.

◆ OnMouseMove()

virtual void mingfx::GraphicsApp::OnMouseMove	(	const Point2 &	pos,
		const Vector2 &	delta
	)

inlinevirtual

If the mouse has moved in the past frame and no mouse buttons are currently pressed, then this callback function will be called to report the new position of the mouse to you.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width(), window_height()) is the bottom right corner.
delta	This is the change in the position of the mouse in pixels since the last frame.

Definition at line 165 of file graphics_app.h.

◆ OnRightMouseDown()

virtual void mingfx::GraphicsApp::OnRightMouseDown ( const Point2 & pos )

inlinevirtual

If the mouse button was pressed down since the last frame, then this function will be called to notify you.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width(), window_height()) is the bottom right corner.

Definition at line 210 of file graphics_app.h.

◆ OnRightMouseDrag()

virtual void mingfx::GraphicsApp::OnRightMouseDrag	(	const Point2 &	pos,
		const Vector2 &	delta
	)

inlinevirtual

If the mouse button is held down and the mouse has moved in the past frame then this function will be called to tell you that a "dragging" operation is happening.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width(), window_height()) is the bottom right corner.
delta	This is the change in the position of the mouse in pixels since the last frame.

Definition at line 213 of file graphics_app.h.

◆ OnRightMouseUp()

virtual void mingfx::GraphicsApp::OnRightMouseUp ( const Point2 & pos )

inlinevirtual

If the mouse button was released since the last frame, then this function will be called to notify you.

Parameters

pos	This is the current position of the mouse in pixels, where (0,0) is at the top left corner of the screen and (window_width()-1, window_height()-1) is the bottom right corner.

Definition at line 216 of file graphics_app.h.

◆ OnSpecialKeyDown()

virtual void mingfx::GraphicsApp::OnSpecialKeyDown	(	int	key,
		int	scancode,
		int	modifiers
	)

inlinevirtual

The values for key, scancode, and modifiers are documented here: http://www.glfw.org/docs/latest/group__keys.html.

Definition at line 247 of file graphics_app.h.

◆ OnSpecialKeyRepeat()

virtual void mingfx::GraphicsApp::OnSpecialKeyRepeat	(	int	key,
		int	scancode,
		int	modifiers
	)

inlinevirtual

The values for key, scancode, and modifiers are documented here: http://www.glfw.org/docs/latest/group__keys.html.

Definition at line 251 of file graphics_app.h.

◆ OnSpecialKeyUp()

virtual void mingfx::GraphicsApp::OnSpecialKeyUp	(	int	key,
		int	scancode,
		int	modifiers
	)

inlinevirtual

The values for key, scancode, and modifiers are documented here: http://www.glfw.org/docs/latest/group__keys.html.

Definition at line 255 of file graphics_app.h.

◆ OnWindowResize()

virtual void mingfx::GraphicsApp::OnWindowResize	(	int	new_width,
		int	new_height
	)

inlinevirtual

Override this to respond when the graphics window and/or framebuffer are resized, either by the user dragging the window or through a call to ResizeWindow().

Definition at line 261 of file graphics_app.h.

◆ PixelsToNormalizedDeviceCoords() [1/2]

virtual Point2 mingfx::GraphicsApp::PixelsToNormalizedDeviceCoords ( const Point2 & pointInPixels )

virtual

Transforms a point in viewport coordinates (pixels where top left = (0,0) and bottom right = (window_width()-1, window_height()-1)) to normalized device coordinates, (top left = (-1,1) bottom right (1,-1)).

◆ PixelsToNormalizedDeviceCoords() [2/2]

virtual Vector2 mingfx::GraphicsApp::PixelsToNormalizedDeviceCoords ( const Vector2 & vectorInPixels )

virtual

Transforms a vector in viewport coordinates (pixels where top left = (0,0) and bottom right = (window width-1, window height-1)) to normalized device coordinates, (top left = (-1,1) bottom right (1,-1)).

◆ ReadZValueAtPixel()

virtual float mingfx::GraphicsApp::ReadZValueAtPixel	(	const Point2 &	pointInPixels,
		unsigned int	whichBuffer = `GL_BACK`
	)

virtual

Returns the z buffer value under the specified pixel. z will be 0 at the near plane and +1 at the far plane.

◆ ResizeWindow()

virtual void mingfx::GraphicsApp::ResizeWindow	(	int	new_width,
		int	new_height
	)

virtual

Cause the graphics windows to resize programmatically rather than by dragging on the corner manually.

◆ Run()

virtual void mingfx::GraphicsApp::Run ( )

virtual

After creating a new GraphicsApp, call this to start the app's mainloop.

Each time through the mainloop the app will: 1. respond any user input events by calling the On*() callback methods, 2. call UpdateSimulation(), and 3. call the two Draw*() methods. Note that Run() does not return until the user closes the app and the program is ready to shutdown.

◆ screen()

virtual nanogui::Screen* mingfx::GraphicsApp::screen ( )

virtual

Access to the underlying NanoGUI Screen object.

◆ UpdateSimulation()

virtual void mingfx::GraphicsApp::UpdateSimulation ( double dt )

inlinevirtual

Called once per frame.

Override this and fill it in to update your simulation code or any other updates you need to make to your model that are timed rather than in response to user input.

Parameters

dt	is the elapsed time since the last call.

Definition at line 306 of file graphics_app.h.

◆ window()

virtual GLFWwindow* mingfx::GraphicsApp::window ( )

virtual

Access to the underlying GLFWwindow object.

◆ window_height()

virtual int mingfx::GraphicsApp::window_height ( )

virtual

Returns the current height of the client area of the window in pixels.

◆ window_width()

virtual int mingfx::GraphicsApp::window_width ( )

virtual

Returns the current width of the client area of the window in pixels.

The documentation for this class was generated from the following file:

src/graphics_app.h

Detailed Description

Public Member Functions

Constructor & Destructor Documentation

◆ GraphicsApp()

◆ ~GraphicsApp()

Member Function Documentation

◆ aspect_ratio()

◆ DrawUsingNanoVG()

◆ DrawUsingOpenGL()

◆ framebuffer_height()

◆ framebuffer_width()

◆ InitGraphicsContext()

◆ InitNanoGUI()

◆ InitOpenGL()

◆ IsKeyDown()

◆ IsLeftMouseDown()

◆ IsMiddleMouseDown()

◆ IsRightMouseDown()

◆ NormalizedDeviceCoordsToPixels() [1/2]

◆ NormalizedDeviceCoordsToPixels() [2/2]

◆ OnKeyDown()

◆ OnKeyRepeat()

◆ OnKeyUp()

◆ OnLeftMouseDown()

◆ OnLeftMouseDrag()

◆ OnLeftMouseUp()

◆ OnMiddleMouseDown()

◆ OnMiddleMouseDrag()

◆ OnMiddleMouseUp()

◆ OnMouseMove()

◆ OnRightMouseDown()

◆ OnRightMouseDrag()

◆ OnRightMouseUp()

◆ OnSpecialKeyDown()

◆ OnSpecialKeyRepeat()

◆ OnSpecialKeyUp()

◆ OnWindowResize()

◆ PixelsToNormalizedDeviceCoords() [1/2]

◆ PixelsToNormalizedDeviceCoords() [2/2]

◆ ReadZValueAtPixel()

◆ ResizeWindow()

◆ Run()

◆ screen()

◆ UpdateSimulation()

◆ window()

◆ window_height()

◆ window_width()