/
Window.c
3496 lines (2897 loc) · 114 KB
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Window.c
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#include "Window.h"
#include "Platform.h"
#include "Input.h"
#include "Event.h"
#include "Logger.h"
#include "Funcs.h"
#include "ExtMath.h"
int Display_BitsPerPixel;
Rect2D Display_Bounds;
bool Window_Exists, Window_Focused;
Rect2D Window_Bounds, Window_ClientBounds;
static bool win_cursorVisible = true;
bool Cursor_GetVisible(void) { return win_cursorVisible; }
void Window_CreateSimple(int width, int height) {
struct GraphicsMode mode;
int x, y;
x = Display_Bounds.X + (Display_Bounds.Width - width) / 2;
y = Display_Bounds.Y + (Display_Bounds.Height - height) / 2;
GraphicsMode_MakeDefault(&mode);
Window_Create(x, y, width, height, &mode);
}
static Point2D cursorPrev;
static void Window_CentreMousePosition(void) {
int cenX = Window_ClientBounds.X + Window_ClientBounds.Width / 2;
int cenY = Window_ClientBounds.Y + Window_ClientBounds.Height / 2;
Cursor_SetScreenPos(cenX, cenY);
/* Fixes issues with large DPI displays on Windows >= 8.0. */
cursorPrev = Cursor_GetScreenPos();
}
static void Window_RegrabMouse(void) {
if (!Window_Focused || !Window_Exists) return;
Window_CentreMousePosition();
}
static void Window_DefaultEnableRawMouse(void) {
Window_RegrabMouse();
Cursor_SetVisible(false);
}
static void Window_DefaultUpdateRawMouse(void) {
Point2D p = Cursor_GetScreenPos();
Event_RaiseMouseMove(&MouseEvents.RawMoved, p.X - cursorPrev.X, p.Y - cursorPrev.Y);
Window_CentreMousePosition();
}
static void Window_DefaultDisableRawMouse(void) {
Window_RegrabMouse();
Cursor_SetVisible(true);
}
/*########################################################################################################################*
*------------------------------------------------------GraphicsMode-------------------------------------------------------*
*#########################################################################################################################*/
void GraphicsMode_Make(struct GraphicsMode* m, int bpp, int depth, int stencil) {
m->DepthBits = depth;
m->StencilBits = stencil;
m->IsIndexed = bpp < 15;
m->BitsPerPixel = bpp;
m->A = 0;
switch (bpp) {
case 32:
m->R = 8; m->G = 8; m->B = 8; m->A = 8; break;
case 24:
m->R = 8; m->G = 8; m->B = 8; break;
case 16:
m->R = 5; m->G = 6; m->B = 5; break;
case 15:
m->R = 5; m->G = 5; m->B = 5; break;
case 8:
m->R = 3; m->G = 3; m->B = 2; break;
case 4:
m->R = 2; m->G = 2; m->B = 1; break;
default:
/* mode->R = 0; mode->G = 0; mode->B = 0; */
Logger_Abort2(bpp, "Unsupported bits per pixel"); break;
}
}
void GraphicsMode_MakeDefault(struct GraphicsMode* m) {
GraphicsMode_Make(m, Display_BitsPerPixel, 24, 0);
}
/*########################################################################################################################*
*------------------------------------------------------Win32 window-------------------------------------------------------*
*#########################################################################################################################*/
#ifdef CC_BUILD_WINGUI
#define WIN32_LEAN_AND_MEAN
#define NOSERVICE
#define NOMCX
#define NOIME
#ifndef UNICODE
#define UNICODE
#define _UNICODE
#endif
#include <windows.h>
#define CC_WIN_STYLE WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN
#define CC_WIN_CLASSNAME TEXT("ClassiCube_Window")
#define Rect_Width(rect) (rect.right - rect.left)
#define Rect_Height(rect) (rect.bottom - rect.top)
#ifndef WM_XBUTTONDOWN
/* Missing if _WIN32_WINNT isn't defined */
#define WM_XBUTTONDOWN 0x020B
#define WM_XBUTTONUP 0x020C
#endif
static bool rawMouseInited, rawMouseEnabled;
static HINSTANCE win_instance;
static HWND win_handle;
static HDC win_DC;
static int win_state;
static int suppress_resize; /* Used in WindowBorder and WindowState in order to avoid rapid, consecutive resize events */
static Rect2D prev_bounds; /* Used to restore previous size when leaving fullscreen mode */
/*########################################################################################################################*
*-----------------------------------------------------Private details-----------------------------------------------------*
*#########################################################################################################################*/
const static uint8_t key_map[14 * 16] = {
0, 0, 0, 0, 0, 0, 0, 0, KEY_BACKSPACE, KEY_TAB, 0, 0, 0, KEY_ENTER, 0, 0,
0, 0, 0, KEY_PAUSE, KEY_CAPSLOCK, 0, 0, 0, 0, 0, 0, KEY_ESCAPE, 0, 0, 0, 0,
KEY_SPACE, KEY_PAGEUP, KEY_PAGEDOWN, KEY_END, KEY_HOME, KEY_LEFT, KEY_UP, KEY_RIGHT, KEY_DOWN, 0, KEY_PRINTSCREEN, 0, KEY_PRINTSCREEN, KEY_INSERT, KEY_DELETE, 0,
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 0, 0, 0, 0, 0, 0,
0, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', KEY_LWIN, KEY_RWIN, KEY_MENU, 0, 0,
KEY_KP0, KEY_KP1, KEY_KP2, KEY_KP3, KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, KEY_KP8, KEY_KP9, KEY_KP_MULTIPLY, KEY_KP_PLUS, 0, KEY_KP_MINUS, KEY_KP_DECIMAL, KEY_KP_DIVIDE,
KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16,
KEY_F17, KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23, KEY_F24, 0, 0, 0, 0, 0, 0, 0, 0,
KEY_NUMLOCK, KEY_SCROLLLOCK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
KEY_LSHIFT, KEY_RSHIFT, KEY_LCTRL, KEY_RCTRL, KEY_LALT, KEY_RALT, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_SEMICOLON, KEY_EQUALS, KEY_COMMA, KEY_MINUS, KEY_PERIOD, KEY_SLASH,
KEY_TILDE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_LBRACKET, KEY_BACKSLASH, KEY_RBRACKET, KEY_QUOTE, 0,
};
static Key Window_MapKey(WPARAM key) { return key < Array_Elems(key_map) ? key_map[key] : 0; }
static void Window_ResetWindowState(void) {
suppress_resize++;
Window_SetWindowState(WINDOW_STATE_NORMAL);
Window_ProcessEvents();
suppress_resize--;
}
static bool win_hiddenBorder;
static void Window_DoSetHiddenBorder(bool value) {
bool wasVisible;
RECT rect;
if (win_hiddenBorder == value) return;
/* We wish to avoid making an invisible window visible just to change the border.
However, it's a good idea to make a visible window invisible temporarily, to
avoid garbage caused by the border change. */
wasVisible = Window_GetVisible();
/* To ensure maximized/minimized windows work correctly, reset state to normal,
change the border, then go back to maximized/minimized. */
int state = win_state;
Window_ResetWindowState();
DWORD style = WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
style |= (value ? WS_POPUP : WS_OVERLAPPEDWINDOW);
/* Make sure client size doesn't change when changing the border style.*/
rect.left = Window_Bounds.X; rect.top = Window_Bounds.Y;
rect.right = rect.left + Window_Bounds.Width;
rect.bottom = rect.top + Window_Bounds.Height;
AdjustWindowRect(&rect, style, false);
/* This avoids leaving garbage on the background window. */
if (wasVisible) Window_SetVisible(false);
SetWindowLong(win_handle, GWL_STYLE, style);
SetWindowPos(win_handle, NULL, 0, 0, Rect_Width(rect), Rect_Height(rect),
SWP_NOMOVE | SWP_NOZORDER | SWP_FRAMECHANGED);
/* Force window to redraw update its borders, but only if it's
already visible (invisible windows will change borders when
they become visible, so no need to make them visiable prematurely).*/
if (wasVisible) Window_SetVisible(true);
Window_SetWindowState(state);
}
static void Window_SetHiddenBorder(bool hidden) {
suppress_resize++;
Window_DoSetHiddenBorder(hidden);
Window_ProcessEvents();
suppress_resize--;
}
static CC_INLINE void Window_SetRect(Rect2D* dst, const RECT* src) {
dst->X = src->left;
dst->Y = src->top;
dst->Width = src->right - src->left;
dst->Height = src->bottom - src->top;
}
static void Window_RefreshBounds(void) {
RECT rect;
POINT topLeft = { 0, 0 };
GetWindowRect(win_handle, &rect);
Window_SetRect(&Window_Bounds, &rect);
GetClientRect(win_handle, &rect);
Window_SetRect(&Window_ClientBounds, &rect);
/* MSDN says GetClientRect always returns 0,0 for top left */
ClientToScreen(win_handle, &topLeft);
Window_ClientBounds.X = topLeft.x;
Window_ClientBounds.Y = topLeft.y;
}
static LRESULT CALLBACK Window_Procedure(HWND handle, UINT message, WPARAM wParam, LPARAM lParam) {
char keyChar;
bool wasFocused;
float wheelDelta;
switch (message) {
case WM_ACTIVATE:
wasFocused = Window_Focused;
Window_Focused = LOWORD(wParam) != 0;
if (Window_Focused != wasFocused) {
Event_RaiseVoid(&WindowEvents.FocusChanged);
}
break;
case WM_ERASEBKGND:
Event_RaiseVoid(&WindowEvents.Redraw);
return 1;
case WM_WINDOWPOSCHANGED:
{
WINDOWPOS* pos = (WINDOWPOS*)lParam;
if (pos->hwnd != win_handle) break;
bool moved = pos->x != Window_Bounds.X || pos->y != Window_Bounds.Y;
bool sized = pos->cx != Window_Bounds.Width || pos->cy != Window_Bounds.Height;
if (moved) {
Window_RefreshBounds();
Event_RaiseVoid(&WindowEvents.Moved);
}
if (sized) {
Window_RefreshBounds();
SetWindowPos(win_handle, NULL,
Window_Bounds.X, Window_Bounds.Y, Window_Bounds.Width, Window_Bounds.Height,
SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | SWP_NOSENDCHANGING);
if (suppress_resize <= 0) {
Event_RaiseVoid(&WindowEvents.Resized);
}
}
} break;
case WM_STYLECHANGED:
if (wParam == GWL_STYLE) {
DWORD style = ((STYLESTRUCT*)lParam)->styleNew;
if (style & WS_POPUP) {
win_hiddenBorder = true;
} else if (style & WS_THICKFRAME) {
win_hiddenBorder = false;
}
}
break;
case WM_SIZE:
{
int new_state = win_state;
switch (wParam) {
case SIZE_RESTORED: new_state = WINDOW_STATE_NORMAL; break;
case SIZE_MINIMIZED: new_state = WINDOW_STATE_MINIMISED; break;
case SIZE_MAXIMIZED: new_state = win_hiddenBorder ? WINDOW_STATE_FULLSCREEN : WINDOW_STATE_MAXIMISED; break;
}
if (new_state != win_state) {
win_state = new_state;
Event_RaiseVoid(&WindowEvents.StateChanged);
}
} break;
case WM_CHAR:
if (Convert_TryUnicodeToCP437((Codepoint)wParam, &keyChar)) {
Event_RaiseInt(&KeyEvents.Press, keyChar);
}
break;
case WM_MOUSEMOVE:
/* Set before position change, in case mouse buttons changed when outside window */
Mouse_SetPressed(MOUSE_LEFT, (wParam & 0x01) != 0);
Mouse_SetPressed(MOUSE_RIGHT, (wParam & 0x02) != 0);
Mouse_SetPressed(MOUSE_MIDDLE, (wParam & 0x10) != 0);
/* TODO: do we need to set XBUTTON1/XBUTTON2 here */
Mouse_SetPosition(LOWORD(lParam), HIWORD(lParam));
break;
case WM_MOUSEWHEEL:
wheelDelta = ((short)HIWORD(wParam)) / (float)WHEEL_DELTA;
Mouse_SetWheel(Mouse_Wheel + wheelDelta);
return 0;
case WM_LBUTTONDOWN:
Mouse_SetPressed(MOUSE_LEFT, true); break;
case WM_MBUTTONDOWN:
Mouse_SetPressed(MOUSE_MIDDLE, true); break;
case WM_RBUTTONDOWN:
Mouse_SetPressed(MOUSE_RIGHT, true); break;
case WM_XBUTTONDOWN:
Key_SetPressed(HIWORD(wParam) == 1 ? KEY_XBUTTON1 : KEY_XBUTTON2, true);
break;
case WM_LBUTTONUP:
Mouse_SetPressed(MOUSE_LEFT, false); break;
case WM_MBUTTONUP:
Mouse_SetPressed(MOUSE_MIDDLE, false); break;
case WM_RBUTTONUP:
Mouse_SetPressed(MOUSE_RIGHT, false); break;
case WM_XBUTTONUP:
Key_SetPressed(HIWORD(wParam) == 1 ? KEY_XBUTTON1 : KEY_XBUTTON2, false);
break;
case WM_INPUT:
{
RAWINPUT raw;
UINT rawSize = sizeof(RAWINPUT);
int dx, dy;
GetRawInputData((HRAWINPUT)lParam, RID_INPUT, &raw, &rawSize, sizeof(RAWINPUTHEADER));
if (raw.header.dwType != RIM_TYPEMOUSE) break;
if (raw.data.mouse.usFlags == MOUSE_MOVE_RELATIVE) {
dx = raw.data.mouse.lLastX;
dy = raw.data.mouse.lLastY;
} else if (raw.data.mouse.usFlags == MOUSE_MOVE_ABSOLUTE) {
static Point2D prevPos;
dx = raw.data.mouse.lLastX - prevPos.X;
dy = raw.data.mouse.lLastY - prevPos.Y;
prevPos.X = raw.data.mouse.lLastX;
prevPos.Y = raw.data.mouse.lLastY;
} else { break; }
if (rawMouseEnabled) Event_RaiseMouseMove(&MouseEvents.RawMoved, dx, dy);
} break;
case WM_KEYDOWN:
case WM_KEYUP:
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
{
bool pressed = message == WM_KEYDOWN || message == WM_SYSKEYDOWN;
/* Shift/Control/Alt behave strangely when e.g. ShiftRight is held down and ShiftLeft is pressed
and released. It looks like neither key is released in this case, or that the wrong key is
released in the case of Control and Alt.
To combat this, we are going to release both keys when either is released. Hacky, but should work.
Win95 does not distinguish left/right key constants (GetAsyncKeyState returns 0).
In this case, both keys will be reported as pressed. */
bool ext = (lParam & (1UL << 24)) != 0;
bool lShiftDown, rShiftDown;
Key mappedKey;
switch (wParam)
{
case VK_SHIFT:
/* The behavior of this key is very strange. Unlike Control and Alt, there is no extended bit
to distinguish between left and right keys. Moreover, pressing both keys and releasing one
may result in both keys being held down (but not always).*/
lShiftDown = ((USHORT)GetKeyState(VK_LSHIFT)) >> 15;
rShiftDown = ((USHORT)GetKeyState(VK_RSHIFT)) >> 15;
if (!pressed || lShiftDown != rShiftDown) {
Key_SetPressed(KEY_LSHIFT, lShiftDown);
Key_SetPressed(KEY_RSHIFT, rShiftDown);
}
return 0;
case VK_CONTROL:
Key_SetPressed(ext ? KEY_RCTRL : KEY_LCTRL, pressed);
return 0;
case VK_MENU:
Key_SetPressed(ext ? KEY_RALT : KEY_LALT, pressed);
return 0;
case VK_RETURN:
Key_SetPressed(ext ? KEY_KP_ENTER : KEY_ENTER, pressed);
return 0;
default:
mappedKey = Window_MapKey(wParam);
if (mappedKey) Key_SetPressed(mappedKey, pressed);
return 0;
}
} break;
case WM_SYSCHAR:
return 0;
case WM_KILLFOCUS:
/* TODO: Keep track of keyboard when focus is lost */
Key_Clear();
break;
case WM_CLOSE:
Event_RaiseVoid(&WindowEvents.Closing);
if (Window_Exists) DestroyWindow(win_handle);
Window_Exists = false;
break;
case WM_DESTROY:
Window_Exists = false;
UnregisterClass(CC_WIN_CLASSNAME, win_instance);
if (win_DC) ReleaseDC(win_handle, win_DC);
Event_RaiseVoid(&WindowEvents.Destroyed);
break;
}
return DefWindowProc(handle, message, wParam, lParam);
}
/*########################################################################################################################*
*--------------------------------------------------Public implementation--------------------------------------------------*
*#########################################################################################################################*/
void Window_Init(void) {
HDC hdc = GetDC(NULL);
Display_Bounds.Width = GetSystemMetrics(SM_CXSCREEN);
Display_Bounds.Height = GetSystemMetrics(SM_CYSCREEN);
Display_BitsPerPixel = GetDeviceCaps(hdc, BITSPIXEL);
ReleaseDC(NULL, hdc);
}
void Window_Create(int x, int y, int width, int height, struct GraphicsMode* mode) {
win_instance = GetModuleHandle(NULL);
/* TODO: UngroupFromTaskbar(); */
/* Find out the final window rectangle, after the WM has added its chrome (titlebar, sidebars etc). */
RECT rect = { x, y, x + width, y + height };
AdjustWindowRect(&rect, CC_WIN_STYLE, false);
WNDCLASSEX wc = { 0 };
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_OWNDC;
wc.hInstance = win_instance;
wc.lpfnWndProc = Window_Procedure;
wc.lpszClassName = CC_WIN_CLASSNAME;
wc.hIcon = (HICON)LoadImage(win_instance, MAKEINTRESOURCE(1), IMAGE_ICON,
GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0);
wc.hIconSm = (HICON)LoadImage(win_instance, MAKEINTRESOURCE(1), IMAGE_ICON,
GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), 0);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
ATOM atom = RegisterClassEx(&wc);
if (!atom) Logger_Abort2(GetLastError(), "Failed to register window class");
win_handle = CreateWindowEx(0, MAKEINTATOM(atom), NULL, CC_WIN_STYLE,
rect.left, rect.top, Rect_Width(rect), Rect_Height(rect),
NULL, NULL, win_instance, NULL);
if (!win_handle) Logger_Abort2(GetLastError(), "Failed to create window");
Window_RefreshBounds();
win_DC = GetDC(win_handle);
if (!win_DC) Logger_Abort2(GetLastError(), "Failed to get device context");
Window_Exists = true;
}
void Window_SetTitle(const String* title) {
TCHAR str[300];
Platform_ConvertString(str, title);
SetWindowText(win_handle, str);
}
void Window_GetClipboardText(String* value) {
/* retry up to 50 times*/
int i;
value->length = 0;
for (i = 0; i < 50; i++) {
if (!OpenClipboard(win_handle)) {
Thread_Sleep(10);
continue;
}
bool isUnicode = true;
HANDLE hGlobal = GetClipboardData(CF_UNICODETEXT);
if (!hGlobal) {
hGlobal = GetClipboardData(CF_TEXT);
isUnicode = false;
}
if (!hGlobal) { CloseClipboard(); return; }
LPVOID src = GlobalLock(hGlobal);
SIZE_T size = GlobalSize(hGlobal);
/* ignore trailing NULL at end */
/* TODO: Verify it's always there */
if (isUnicode) {
Convert_DecodeUtf16(value, (Codepoint*)src, size - 2);
} else {
Convert_DecodeAscii(value, (uint8_t*)src, size - 1);
}
GlobalUnlock(hGlobal);
CloseClipboard();
return;
}
}
void Window_SetClipboardText(const String* value) {
/* retry up to 10 times */
int i;
for (i = 0; i < 10; i++) {
if (!OpenClipboard(win_handle)) {
Thread_Sleep(100);
continue;
}
HANDLE hGlobal = GlobalAlloc(GMEM_MOVEABLE, (value->length + 1) * 2);
if (!hGlobal) { CloseClipboard(); return; }
Codepoint* text = GlobalLock(hGlobal);
for (i = 0; i < value->length; i++, text++) {
*text = Convert_CP437ToUnicode(value->buffer[i]);
}
*text = '\0';
GlobalUnlock(hGlobal);
EmptyClipboard();
SetClipboardData(CF_UNICODETEXT, hGlobal);
CloseClipboard();
return;
}
}
void Window_SetLocation(int x, int y) {
SetWindowPos(win_handle, NULL, x, y, 0, 0, SWP_NOSIZE);
}
void Window_SetSize(int width, int height) {
DWORD style = GetWindowLong(win_handle, GWL_STYLE);
RECT rect = { 0, 0, width, height };
AdjustWindowRect(&rect, style, false);
SetWindowPos(win_handle, NULL, 0, 0,
Rect_Width(rect), Rect_Height(rect), SWP_NOMOVE);
}
void* Window_GetHandle(void) { return win_handle; }
bool Window_GetVisible(void) { return IsWindowVisible(win_handle); }
void Window_SetVisible(bool visible) {
if (visible) {
ShowWindow(win_handle, SW_SHOW);
BringWindowToTop(win_handle);
SetForegroundWindow(win_handle);
} else {
ShowWindow(win_handle, SW_HIDE);
}
}
void Window_Close(void) {
PostMessage(win_handle, WM_CLOSE, 0, 0);
}
int Window_GetWindowState(void) { return win_state; }
void Window_SetWindowState(int state) {
if (win_state == state) return;
DWORD command = 0;
bool exiting_fullscreen = false;
switch (state) {
case WINDOW_STATE_NORMAL:
command = SW_RESTORE;
/* If we are leaving fullscreen mode we need to restore the border. */
if (win_state == WINDOW_STATE_FULLSCREEN)
exiting_fullscreen = true;
break;
case WINDOW_STATE_MAXIMISED:
/* Reset state to avoid strange interactions with fullscreen/minimized windows. */
Window_ResetWindowState();
command = SW_MAXIMIZE;
break;
case WINDOW_STATE_MINIMISED:
command = SW_MINIMIZE;
break;
case WINDOW_STATE_FULLSCREEN:
/* We achieve fullscreen by hiding the window border and sending the MAXIMIZE command.
We cannot use the WindowState.Maximized directly, as that will not send the MAXIMIZE
command for windows with hidden borders. */
/* Reset state to avoid strange side-effects from maximized/minimized windows. */
Window_ResetWindowState();
prev_bounds = Window_Bounds;
Window_SetHiddenBorder(true);
command = SW_MAXIMIZE;
SetForegroundWindow(win_handle);
break;
}
if (command != 0) ShowWindow(win_handle, command);
/* Restore previous window border or apply pending border change when leaving fullscreen mode. */
if (exiting_fullscreen) Window_SetHiddenBorder(false);
/* Restore previous window size/location if necessary */
if (command == SW_RESTORE && (prev_bounds.Width || prev_bounds.Height)) {
Rect2D rect = prev_bounds;
/* NOTE: the bounds variable is updated when the resize/move message arrives. */
SetWindowPos(win_handle, NULL, rect.X, rect.Y, rect.Width, rect.Height, 0);
prev_bounds.Width = 0; prev_bounds.Height = 0;
}
}
void Window_ProcessEvents(void) {
MSG msg;
while (PeekMessage(&msg, NULL, 0, 0, 1)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
HWND foreground = GetForegroundWindow();
if (foreground) {
Window_Focused = foreground == win_handle;
}
}
Point2D Cursor_GetScreenPos(void) {
POINT point; GetCursorPos(&point);
Point2D p = { point.x, point.y }; return p;
}
void Cursor_SetScreenPos(int x, int y) {
SetCursorPos(x, y);
}
void Cursor_SetVisible(bool visible) {
win_cursorVisible = visible;
ShowCursor(visible ? 1 : 0);
}
void Window_ShowDialog(const char* title, const char* msg) {
MessageBoxA(win_handle, msg, title, 0);
}
static HGDIOBJ draw_DC;
static HBITMAP draw_DIB;
void Window_InitRaw(Bitmap* bmp) {
BITMAPINFO hdr = { 0 };
if (!draw_DC) draw_DC = CreateCompatibleDC(win_DC);
if (draw_DIB) DeleteObject(draw_DIB);
hdr.bmiHeader.biSize = sizeof(BITMAPINFO);
hdr.bmiHeader.biWidth = bmp->Width;
hdr.bmiHeader.biHeight = -bmp->Height;
hdr.bmiHeader.biBitCount = 32;
hdr.bmiHeader.biPlanes = 1;
draw_DIB = CreateDIBSection(draw_DC, &hdr, 0, &bmp->Scan0, NULL, 0);
}
void Window_DrawRaw(Rect2D r) {
HGDIOBJ oldSrc = SelectObject(draw_DC, draw_DIB);
BOOL success = BitBlt(win_DC, r.X, r.Y, r.Width, r.Height, draw_DC, r.X, r.Y, SRCCOPY);
SelectObject(draw_DC, oldSrc);
}
void Window_EnableRawMouse(void) {
RAWINPUTDEVICE rid;
rawMouseEnabled = true;
Window_DefaultEnableRawMouse();
if (rawMouseInited) return;
rawMouseInited = true;
rid.usUsagePage = 1; /* HID_USAGE_PAGE_GENERIC; */
rid.usUsage = 2; /* HID_USAGE_GENERIC_MOUSE; */
rid.dwFlags = RIDEV_INPUTSINK;
rid.hwndTarget = win_handle;
RegisterRawInputDevices(&rid, 1, sizeof(rid));
}
void Window_UpdateRawMouse(void) { Window_CentreMousePosition(); }
void Window_DisableRawMouse(void) {
rawMouseEnabled = false;
Window_DefaultDisableRawMouse();
}
#endif
/*########################################################################################################################*
*-------------------------------------------------------X11 window--------------------------------------------------------*
*#########################################################################################################################*/
#ifdef CC_BUILD_X11
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/XKBlib.h>
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
#define _NET_WM_STATE_TOGGLE 2
static Display* win_display;
static int win_screen;
static Window win_rootWin;
static Window win_handle;
static XVisualInfo win_visual;
static int borderLeft, borderRight, borderTop, borderBottom;
static Atom wm_destroy, net_wm_state;
static Atom net_wm_state_minimized;
static Atom net_wm_state_fullscreen;
static Atom net_wm_state_maximized_horizontal;
static Atom net_wm_state_maximized_vertical;
static Atom net_wm_icon, net_frame_extents;
static Atom xa_clipboard, xa_targets, xa_utf8_string, xa_data_sel;
static Atom xa_atom = 4, xa_cardinal = 6;
static long win_eventMask;
/*########################################################################################################################*
*-----------------------------------------------------Private details-----------------------------------------------------*
*#########################################################################################################################*/
static Key Window_MapKey(KeySym key) {
if (key >= XK_0 && key <= XK_9) { return '0' + (key - XK_0); }
if (key >= XK_A && key <= XK_Z) { return 'A' + (key - XK_A); }
if (key >= XK_a && key <= XK_z) { return 'A' + (key - XK_a); }
if (key >= XK_F1 && key <= XK_F35) { return KEY_F1 + (key - XK_F1); }
if (key >= XK_KP_0 && key <= XK_KP_9) { return KEY_KP0 + (key - XK_KP_0); }
switch (key) {
case XK_Escape: return KEY_ESCAPE;
case XK_Return: return KEY_ENTER;
case XK_space: return KEY_SPACE;
case XK_BackSpace: return KEY_BACKSPACE;
case XK_Shift_L: return KEY_LSHIFT;
case XK_Shift_R: return KEY_RSHIFT;
case XK_Alt_L: return KEY_LALT;
case XK_Alt_R: return KEY_RALT;
case XK_Control_L: return KEY_LCTRL;
case XK_Control_R: return KEY_RCTRL;
case XK_Super_L: return KEY_LWIN;
case XK_Super_R: return KEY_RWIN;
case XK_Meta_L: return KEY_LWIN;
case XK_Meta_R: return KEY_RWIN;
case XK_Menu: return KEY_MENU;
case XK_Tab: return KEY_TAB;
case XK_minus: return KEY_MINUS;
case XK_plus: return KEY_EQUALS;
case XK_equal: return KEY_EQUALS;
case XK_Caps_Lock: return KEY_CAPSLOCK;
case XK_Num_Lock: return KEY_NUMLOCK;
case XK_Pause: return KEY_PAUSE;
case XK_Break: return KEY_PAUSE;
case XK_Scroll_Lock: return KEY_SCROLLLOCK;
case XK_Insert: return KEY_INSERT;
case XK_Print: return KEY_PRINTSCREEN;
case XK_Sys_Req: return KEY_PRINTSCREEN;
case XK_backslash: return KEY_BACKSLASH;
case XK_bar: return KEY_BACKSLASH;
case XK_braceleft: return KEY_LBRACKET;
case XK_bracketleft: return KEY_LBRACKET;
case XK_braceright: return KEY_RBRACKET;
case XK_bracketright: return KEY_RBRACKET;
case XK_colon: return KEY_SEMICOLON;
case XK_semicolon: return KEY_SEMICOLON;
case XK_quoteright: return KEY_QUOTE;
case XK_quotedbl: return KEY_QUOTE;
case XK_quoteleft: return KEY_TILDE;
case XK_asciitilde: return KEY_TILDE;
case XK_comma: return KEY_COMMA;
case XK_less: return KEY_COMMA;
case XK_period: return KEY_PERIOD;
case XK_greater: return KEY_PERIOD;
case XK_slash: return KEY_SLASH;
case XK_question: return KEY_SLASH;
case XK_Left: return KEY_LEFT;
case XK_Down: return KEY_DOWN;
case XK_Right: return KEY_RIGHT;
case XK_Up: return KEY_UP;
case XK_Delete: return KEY_DELETE;
case XK_Home: return KEY_HOME;
case XK_End: return KEY_END;
case XK_Page_Up: return KEY_PAGEUP;
case XK_Page_Down: return KEY_PAGEDOWN;
case XK_KP_Add: return KEY_KP_PLUS;
case XK_KP_Subtract: return KEY_KP_MINUS;
case XK_KP_Multiply: return KEY_KP_MULTIPLY;
case XK_KP_Divide: return KEY_KP_DIVIDE;
case XK_KP_Decimal: return KEY_KP_DECIMAL;
case XK_KP_Insert: return KEY_KP0;
case XK_KP_End: return KEY_KP1;
case XK_KP_Down: return KEY_KP2;
case XK_KP_Page_Down: return KEY_KP3;
case XK_KP_Left: return KEY_KP4;
case XK_KP_Begin: return KEY_KP5;
case XK_KP_Right: return KEY_KP6;
case XK_KP_Home: return KEY_KP7;
case XK_KP_Up: return KEY_KP8;
case XK_KP_Page_Up: return KEY_KP9;
case XK_KP_Delete: return KEY_KP_DECIMAL;
case XK_KP_Enter: return KEY_KP_ENTER;
}
return KEY_NONE;
}
static void Window_RegisterAtoms(void) {
Display* display = win_display;
wm_destroy = XInternAtom(display, "WM_DELETE_WINDOW", true);
net_wm_state = XInternAtom(display, "_NET_WM_STATE", false);
net_wm_state_minimized = XInternAtom(display, "_NET_WM_STATE_MINIMIZED", false);
net_wm_state_fullscreen = XInternAtom(display, "_NET_WM_STATE_FULLSCREEN", false);
net_wm_state_maximized_horizontal = XInternAtom(display, "_NET_WM_STATE_MAXIMIZED_HORZ", false);
net_wm_state_maximized_vertical = XInternAtom(display, "_NET_WM_STATE_MAXIMIZED_VERT", false);
net_wm_icon = XInternAtom(display, "_NEW_WM_ICON", false);
net_frame_extents = XInternAtom(display, "_NET_FRAME_EXTENTS", false);
xa_clipboard = XInternAtom(display, "CLIPBOARD", false);
xa_targets = XInternAtom(display, "TARGETS", false);
xa_utf8_string = XInternAtom(display, "UTF8_STRING", false);
xa_data_sel = XInternAtom(display, "CC_SEL_DATA", false);
}
static void Window_RefreshBorders(void) {
Atom prop_type;
int prop_format;
unsigned long items, after;
long* borders = NULL;
XGetWindowProperty(win_display, win_handle, net_frame_extents, 0, 16, false,
xa_cardinal, &prop_type, &prop_format, &items, &after, &borders);
if (!borders) return;
if (items == 4) {
borderLeft = borders[0]; borderRight = borders[1];
borderTop = borders[2]; borderBottom = borders[3];
}
XFree(borders);
}
static void Window_RefreshBounds(int width, int height) {
Window child;
int x, y;
Window_RefreshBorders();
/* e->x and e->y are relative to parent window, which might not be root window */
/* e.g. linux mint + cinnamon, if you use /client resolution, e->x = 10, e->y = 36 */
/* So just always translate topleft to root window coordinates to avoid this */
XTranslateCoordinates(win_display, win_handle, win_rootWin, 0, 0, &x, &y, &child);
if (x != Window_ClientBounds.X || y != Window_ClientBounds.Y) {
Window_ClientBounds.X = x; Window_ClientBounds.Y = y;
/* To get the external (window) position, need to add the border */
Window_Bounds.X = x - borderLeft;
Window_Bounds.Y = y - borderTop;
Event_RaiseVoid(&WindowEvents.Moved);
}
if (width != Window_ClientBounds.Width || height != Window_ClientBounds.Height) {
Window_ClientBounds.Width = width;
Window_ClientBounds.Height = height;
/* To get the external (window) size, need to add the border size */
Window_Bounds.Width = width + borderLeft + borderRight;
Window_Bounds.Height = height + borderTop + borderBottom;
Event_RaiseVoid(&WindowEvents.Resized);
}
}
/*########################################################################################################################*
*--------------------------------------------------Public implementation--------------------------------------------------*
*#########################################################################################################################*/
static XVisualInfo GLContext_SelectVisual(struct GraphicsMode* mode);
void Window_Init(void) {
Display* display = XOpenDisplay(NULL);
int screen;
if (!display) Logger_Abort("Failed to open display");
screen = DefaultScreen(display);
win_display = display;
win_screen = screen;
win_rootWin = RootWindow(display, screen);
/* TODO: Use Xinerama and XRandR for querying these */
Display_Bounds.Width = DisplayWidth(display, screen);
Display_Bounds.Height = DisplayHeight(display, screen);
Display_BitsPerPixel = DefaultDepth(display, screen);
}
void Window_Create(int x, int y, int width, int height, struct GraphicsMode* mode) {
XSetWindowAttributes attributes = { 0 };
XSizeHints hints = { 0 };
uintptr_t addr;
int supported;
/* Open a display connection to the X server, and obtain the screen and root window */
addr = (uintptr_t)win_display;
Platform_Log3("Display: %x, Screen %i, Root window: %h", &addr, &win_screen, &win_rootWin);
Window_RegisterAtoms();
win_eventMask = StructureNotifyMask /*| SubstructureNotifyMask*/ | ExposureMask |
KeyReleaseMask | KeyPressMask | KeymapStateMask | PointerMotionMask |
FocusChangeMask | ButtonPressMask | ButtonReleaseMask | EnterWindowMask |
LeaveWindowMask | PropertyChangeMask;
win_visual = GLContext_SelectVisual(mode);
Platform_LogConst("Opening render window... ");
attributes.colormap = XCreateColormap(win_display, win_rootWin, win_visual.visual, AllocNone);
attributes.event_mask = win_eventMask;
win_handle = XCreateWindow(win_display, win_rootWin, x, y, width, height,
0, win_visual.depth /* CopyFromParent*/, InputOutput, win_visual.visual,
CWColormap | CWEventMask | CWBackPixel | CWBorderPixel, &attributes);
if (!win_handle) Logger_Abort("XCreateWindow failed");
hints.base_width = width;
hints.base_height = height;
hints.flags = PSize | PPosition;
XSetWMNormalHints(win_display, win_handle, &hints);
/* Register for window destroy notification */
XSetWMProtocols(win_display, win_handle, &wm_destroy, 1);
Window_Exists = true;
Window_RefreshBounds(width, height);
/* Request that auto-repeat is only set on devices that support it physically.
This typically means that it's turned off for keyboards (which is what we want).
We prefer this method over XAutoRepeatOff/On, because the latter needs to
be reset before the program exits. */
XkbSetDetectableAutoRepeat(win_display, true, &supported);
}
void Window_SetTitle(const String* title) {
char str[600];
Platform_ConvertString(str, title);
XStoreName(win_display, win_handle, str);
}
static char clipboard_copy_buffer[256];
static char clipboard_paste_buffer[256];
static String clipboard_copy_text = String_FromArray(clipboard_copy_buffer);
static String clipboard_paste_text = String_FromArray(clipboard_paste_buffer);
void Window_GetClipboardText(String* value) {
Window owner = XGetSelectionOwner(win_display, xa_clipboard);
int i;
if (!owner) return; /* no window owner */
XConvertSelection(win_display, xa_clipboard, xa_utf8_string, xa_data_sel, win_handle, 0);
clipboard_paste_text.length = 0;
/* wait up to 1 second for SelectionNotify event to arrive */
for (i = 0; i < 100; i++) {
Window_ProcessEvents();
if (clipboard_paste_text.length) {
String_Copy(value, &clipboard_paste_text);
return;
} else {
Thread_Sleep(10);
}
}
}
void Window_SetClipboardText(const String* value) {
String_Copy(&clipboard_copy_text, value);
XSetSelectionOwner(win_display, xa_clipboard, win_handle, 0);
}