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// window.h
#pragma once
#include "core/slang-basic.h"
#include "core/slang-func-ptr.h"
#include "platform-api.h"
#include "slang-com-ptr.h"
namespace platform
{
enum class KeyCode : uint32_t
{
None = 0,
Left = 0x25,
Up = 0x26,
Down = 0x28,
Right = 0x27,
Escape = 0x1B,
Return = 0x0D,
Space = 0x20,
Shift = 0x10,
Ctrl = 0x11,
Alt = 0x12,
Backspace = 0x08,
Delete = 0x2E,
Home = 0x24,
End = 0x23,
PageUp = 0x21,
PageDown = 0x22,
Insert = 0x2D,
Tab = 0x09,
A = 0x41,
B = 0x42,
C = 0x43,
D = 0x44,
E = 0x45,
F = 0x46,
G = 0x47,
H = 0x48,
I = 0x49,
J = 0x4A,
K = 0x4B,
L = 0x4C,
M = 0x4D,
N = 0x4E,
O = 0x4F,
P = 0x50,
Q = 0x51,
R = 0x52,
S = 0x53,
T = 0x54,
U = 0x55,
V = 0x56,
W = 0x57,
X = 0x58,
Y = 0x59,
Z = 0x5A,
Semicolon = 0xBA,
Comma = 0xBC,
Dot = 0xBE,
Slash = 0xBF,
Quote = 0xDE,
LBracket = 0xDB,
RBracket = 0xDD,
Backslash = 0xDC,
Minus = 0xBD,
Plus = 0xBB,
Tilde = 0xC0,
Key0 = 0x30,
Key1 = 0x31,
Key2 = 0x32,
Key3 = 0x33,
Key4 = 0x34,
Key5 = 0x35,
Key6 = 0x36,
Key7 = 0x37,
Key8 = 0x38,
Key9 = 0x39,
F1 = 0x70,
F2 = 0x71,
F3 = 0x72,
F4 = 0x73,
F5 = 0x74,
F6 = 0x75,
F7 = 0x76,
F8 = 0x77,
F9 = 0x78,
F10 = 0x79,
F11 = 0x7A,
F12 = 0x7B,
};
struct WindowHandle
{
enum class Type
{
Unknown,
Win32Handle,
NSWindowHandle,
XLibHandle,
};
Type type;
intptr_t handleValues[2];
static WindowHandle fromHwnd(void* hwnd)
{
WindowHandle handle = {};
handle.type = WindowHandle::Type::Win32Handle;
handle.handleValues[0] = (intptr_t)(hwnd);
return handle;
}
static WindowHandle fromNSWindow(void* nswindow)
{
WindowHandle handle = {};
handle.type = WindowHandle::Type::NSWindowHandle;
handle.handleValues[0] = (intptr_t)(nswindow);
return handle;
}
static WindowHandle fromXWindow(void* xdisplay, uint32_t xwindow)
{
WindowHandle handle = {};
handle.type = WindowHandle::Type::XLibHandle;
handle.handleValues[0] = (intptr_t)(xdisplay);
handle.handleValues[1] = xwindow;
return handle;
}
template<typename T>
T convert()
{
T result;
result.type = (decltype(result.type))type;
result.handleValues[0] = handleValues[0];
result.handleValues[1] = handleValues[1];
return result;
}
};
struct ButtonState
{
enum Enum
{
None = 0,
LeftButton = 1,
RightButton = 2,
MiddleButton = 4,
Shift = 8,
Control = 16,
Alt = 32
};
};
struct KeyEventArgs
{
KeyCode key;
wchar_t keyChar; // For KeyPress event
ButtonState::Enum buttons;
bool cancelEvent;
};
struct MouseEventArgs
{
int x, y;
int delta;
ButtonState::Enum buttons;
};
struct Rect
{
int x, y;
int width, height;
};
enum class WindowStyle
{
Default,
FixedSize,
};
struct WindowDesc
{
char const* title = nullptr;
int width = 0;
int height = 0;
WindowStyle style = WindowStyle::Default;
};
class Window : public Slang::RefObject
{
public:
struct Events
{
Slang::Action<> mainLoop;
Slang::Action<> sizeChanged;
Slang::Action<> focus;
Slang::Action<> lostFocus;
Slang::Action<KeyEventArgs&> keyDown;
Slang::Action<KeyEventArgs&> keyUp;
Slang::Action<KeyEventArgs&> keyPress;
Slang::Action<MouseEventArgs> mouseMove;
Slang::Action<MouseEventArgs> mouseUp;
Slang::Action<MouseEventArgs> mouseDown;
Slang::Action<MouseEventArgs> mouseWheel;
};
Events events;
virtual void setClientSize(uint32_t width, uint32_t height) = 0;
virtual Rect getClientRect() = 0;
virtual void centerScreen() = 0;
virtual void close() = 0;
virtual bool getFocused() = 0;
virtual bool getVisible() = 0;
virtual WindowHandle getNativeHandle() = 0;
virtual void setText(Slang::String text) = 0;
virtual void show() = 0;
virtual void hide() = 0;
virtual int getCurrentDpi() = 0;
};
class Application
{
public:
static SLANG_PLATFORM_API Window* createWindow(const WindowDesc& desc);
static SLANG_PLATFORM_API void init();
static SLANG_PLATFORM_API void run(Window* mainWindow, bool waitForEvents = false);
static SLANG_PLATFORM_API void quit();
static SLANG_PLATFORM_API void doEvents();
static SLANG_PLATFORM_API void dispose();
};
} // namespace platform
#ifdef _WIN32
#ifdef _MSC_VER
#ifdef _DEBUG
#define GFX_DUMP_LEAK _CrtDumpMemoryLeaks();
#endif
#endif
#endif
#ifndef GFX_DUMP_LEAK
#define GFX_DUMP_LEAK
#endif
#define PLATFORM_UI_MAIN(APPLICATION_ENTRY) \
int exampleMain(int argc, char** argv) \
{ \
platform::Application::init(); \
auto rs = APPLICATION_ENTRY(argc, argv); \
platform::Application::dispose(); \
GFX_DUMP_LEAK \
return rs; \
}
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