orca/src/app/win32_app.c

1589 lines
50 KiB
C

/************************************************************/ /**
*
* @file: win32_app.c
* @author: Martin Fouilleul
* @date: 16/12/2022
* @revision:
*
*****************************************************************/
#include "app.c"
#include "platform/platform_thread.h"
#include <dwmapi.h>
void oc_init_keys()
{
memset(oc_appData.keyCodes, OC_KEY_UNKNOWN, 256 * sizeof(int));
oc_appData.keyCodes[0x00B] = OC_KEY_0;
oc_appData.keyCodes[0x002] = OC_KEY_1;
oc_appData.keyCodes[0x003] = OC_KEY_2;
oc_appData.keyCodes[0x004] = OC_KEY_3;
oc_appData.keyCodes[0x005] = OC_KEY_4;
oc_appData.keyCodes[0x006] = OC_KEY_5;
oc_appData.keyCodes[0x007] = OC_KEY_6;
oc_appData.keyCodes[0x008] = OC_KEY_7;
oc_appData.keyCodes[0x009] = OC_KEY_8;
oc_appData.keyCodes[0x00A] = OC_KEY_9;
oc_appData.keyCodes[0x01E] = OC_KEY_A;
oc_appData.keyCodes[0x030] = OC_KEY_B;
oc_appData.keyCodes[0x02E] = OC_KEY_C;
oc_appData.keyCodes[0x020] = OC_KEY_D;
oc_appData.keyCodes[0x012] = OC_KEY_E;
oc_appData.keyCodes[0x021] = OC_KEY_F;
oc_appData.keyCodes[0x022] = OC_KEY_G;
oc_appData.keyCodes[0x023] = OC_KEY_H;
oc_appData.keyCodes[0x017] = OC_KEY_I;
oc_appData.keyCodes[0x024] = OC_KEY_J;
oc_appData.keyCodes[0x025] = OC_KEY_K;
oc_appData.keyCodes[0x026] = OC_KEY_L;
oc_appData.keyCodes[0x032] = OC_KEY_M;
oc_appData.keyCodes[0x031] = OC_KEY_N;
oc_appData.keyCodes[0x018] = OC_KEY_O;
oc_appData.keyCodes[0x019] = OC_KEY_P;
oc_appData.keyCodes[0x010] = OC_KEY_Q;
oc_appData.keyCodes[0x013] = OC_KEY_R;
oc_appData.keyCodes[0x01F] = OC_KEY_S;
oc_appData.keyCodes[0x014] = OC_KEY_T;
oc_appData.keyCodes[0x016] = OC_KEY_U;
oc_appData.keyCodes[0x02F] = OC_KEY_V;
oc_appData.keyCodes[0x011] = OC_KEY_W;
oc_appData.keyCodes[0x02D] = OC_KEY_X;
oc_appData.keyCodes[0x015] = OC_KEY_Y;
oc_appData.keyCodes[0x02C] = OC_KEY_Z;
oc_appData.keyCodes[0x028] = OC_KEY_APOSTROPHE;
oc_appData.keyCodes[0x02B] = OC_KEY_BACKSLASH;
oc_appData.keyCodes[0x033] = OC_KEY_COMMA;
oc_appData.keyCodes[0x00D] = OC_KEY_EQUAL;
oc_appData.keyCodes[0x029] = OC_KEY_GRAVE_ACCENT;
oc_appData.keyCodes[0x01A] = OC_KEY_LEFT_BRACKET;
oc_appData.keyCodes[0x00C] = OC_KEY_MINUS;
oc_appData.keyCodes[0x034] = OC_KEY_PERIOD;
oc_appData.keyCodes[0x01B] = OC_KEY_RIGHT_BRACKET;
oc_appData.keyCodes[0x027] = OC_KEY_SEMICOLON;
oc_appData.keyCodes[0x035] = OC_KEY_SLASH;
oc_appData.keyCodes[0x056] = OC_KEY_WORLD_2;
oc_appData.keyCodes[0x00E] = OC_KEY_BACKSPACE;
oc_appData.keyCodes[0x153] = OC_KEY_DELETE;
oc_appData.keyCodes[0x14F] = OC_KEY_END;
oc_appData.keyCodes[0x01C] = OC_KEY_ENTER;
oc_appData.keyCodes[0x001] = OC_KEY_ESCAPE;
oc_appData.keyCodes[0x147] = OC_KEY_HOME;
oc_appData.keyCodes[0x152] = OC_KEY_INSERT;
oc_appData.keyCodes[0x15D] = OC_KEY_MENU;
oc_appData.keyCodes[0x151] = OC_KEY_PAGE_DOWN;
oc_appData.keyCodes[0x149] = OC_KEY_PAGE_UP;
oc_appData.keyCodes[0x045] = OC_KEY_PAUSE;
oc_appData.keyCodes[0x146] = OC_KEY_PAUSE;
oc_appData.keyCodes[0x039] = OC_KEY_SPACE;
oc_appData.keyCodes[0x00F] = OC_KEY_TAB;
oc_appData.keyCodes[0x03A] = OC_KEY_CAPS_LOCK;
oc_appData.keyCodes[0x145] = OC_KEY_NUM_LOCK;
oc_appData.keyCodes[0x046] = OC_KEY_SCROLL_LOCK;
oc_appData.keyCodes[0x03B] = OC_KEY_F1;
oc_appData.keyCodes[0x03C] = OC_KEY_F2;
oc_appData.keyCodes[0x03D] = OC_KEY_F3;
oc_appData.keyCodes[0x03E] = OC_KEY_F4;
oc_appData.keyCodes[0x03F] = OC_KEY_F5;
oc_appData.keyCodes[0x040] = OC_KEY_F6;
oc_appData.keyCodes[0x041] = OC_KEY_F7;
oc_appData.keyCodes[0x042] = OC_KEY_F8;
oc_appData.keyCodes[0x043] = OC_KEY_F9;
oc_appData.keyCodes[0x044] = OC_KEY_F10;
oc_appData.keyCodes[0x057] = OC_KEY_F11;
oc_appData.keyCodes[0x058] = OC_KEY_F12;
oc_appData.keyCodes[0x064] = OC_KEY_F13;
oc_appData.keyCodes[0x065] = OC_KEY_F14;
oc_appData.keyCodes[0x066] = OC_KEY_F15;
oc_appData.keyCodes[0x067] = OC_KEY_F16;
oc_appData.keyCodes[0x068] = OC_KEY_F17;
oc_appData.keyCodes[0x069] = OC_KEY_F18;
oc_appData.keyCodes[0x06A] = OC_KEY_F19;
oc_appData.keyCodes[0x06B] = OC_KEY_F20;
oc_appData.keyCodes[0x06C] = OC_KEY_F21;
oc_appData.keyCodes[0x06D] = OC_KEY_F22;
oc_appData.keyCodes[0x06E] = OC_KEY_F23;
oc_appData.keyCodes[0x076] = OC_KEY_F24;
oc_appData.keyCodes[0x038] = OC_KEY_LEFT_ALT;
oc_appData.keyCodes[0x01D] = OC_KEY_LEFT_CONTROL;
oc_appData.keyCodes[0x02A] = OC_KEY_LEFT_SHIFT;
oc_appData.keyCodes[0x15B] = OC_KEY_LEFT_SUPER;
oc_appData.keyCodes[0x137] = OC_KEY_PRINT_SCREEN;
oc_appData.keyCodes[0x138] = OC_KEY_RIGHT_ALT;
oc_appData.keyCodes[0x11D] = OC_KEY_RIGHT_CONTROL;
oc_appData.keyCodes[0x036] = OC_KEY_RIGHT_SHIFT;
oc_appData.keyCodes[0x15C] = OC_KEY_RIGHT_SUPER;
oc_appData.keyCodes[0x150] = OC_KEY_DOWN;
oc_appData.keyCodes[0x14B] = OC_KEY_LEFT;
oc_appData.keyCodes[0x14D] = OC_KEY_RIGHT;
oc_appData.keyCodes[0x148] = OC_KEY_UP;
oc_appData.keyCodes[0x052] = OC_KEY_KP_0;
oc_appData.keyCodes[0x04F] = OC_KEY_KP_1;
oc_appData.keyCodes[0x050] = OC_KEY_KP_2;
oc_appData.keyCodes[0x051] = OC_KEY_KP_3;
oc_appData.keyCodes[0x04B] = OC_KEY_KP_4;
oc_appData.keyCodes[0x04C] = OC_KEY_KP_5;
oc_appData.keyCodes[0x04D] = OC_KEY_KP_6;
oc_appData.keyCodes[0x047] = OC_KEY_KP_7;
oc_appData.keyCodes[0x048] = OC_KEY_KP_8;
oc_appData.keyCodes[0x049] = OC_KEY_KP_9;
oc_appData.keyCodes[0x04E] = OC_KEY_KP_ADD;
oc_appData.keyCodes[0x053] = OC_KEY_KP_DECIMAL;
oc_appData.keyCodes[0x135] = OC_KEY_KP_DIVIDE;
oc_appData.keyCodes[0x11C] = OC_KEY_KP_ENTER;
oc_appData.keyCodes[0x037] = OC_KEY_KP_MULTIPLY;
oc_appData.keyCodes[0x04A] = OC_KEY_KP_SUBTRACT;
memset(oc_appData.nativeKeys, 0, sizeof(int) * OC_KEY_COUNT);
for(int nativeKey = 0; nativeKey < 256; nativeKey++)
{
oc_key_code mpKey = oc_appData.keyCodes[nativeKey];
if(mpKey)
{
oc_appData.nativeKeys[mpKey] = nativeKey;
}
}
}
void oc_init()
{
if(!oc_appData.init)
{
memset(&oc_appData, 0, sizeof(oc_appData));
oc_clock_init();
oc_init_common();
oc_init_keys();
oc_appData.win32.savedConsoleCodePage = GetConsoleOutputCP();
SetConsoleOutputCP(CP_UTF8);
DWORD mode;
GetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), &mode);
mode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
SetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), mode);
SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
u32 wheelScrollLines = 3;
SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &wheelScrollLines, 0);
oc_appData.win32.wheelScrollLines = wheelScrollLines;
}
}
void oc_terminate()
{
if(oc_appData.init)
{
SetConsoleOutputCP(oc_appData.win32.savedConsoleCodePage);
oc_terminate_common();
oc_appData = (oc_app){ 0 };
}
}
static oc_key_code oc_convert_win32_key(int code)
{
return (oc_appData.keyCodes[code]);
}
static oc_keymod_flags oc_get_mod_keys()
{
oc_keymod_flags mods = 0;
if(GetKeyState(VK_SHIFT) & 0x8000)
{
mods |= OC_KEYMOD_SHIFT;
}
if(GetKeyState(VK_CONTROL) & 0x8000)
{
mods |= OC_KEYMOD_CTRL;
mods |= OC_KEYMOD_MAIN_MODIFIER;
}
if(GetKeyState(VK_MENU) & 0x8000)
{
mods |= OC_KEYMOD_ALT;
}
if((GetKeyState(VK_LWIN) | GetKeyState(VK_RWIN)) & 0x8000)
{
mods |= OC_KEYMOD_CMD;
}
return (mods);
}
static void oc_win32_process_mouse_event(oc_window_data* window, oc_key_action action, oc_key_code button)
{
if(action == OC_KEY_PRESS)
{
if(!oc_appData.win32.mouseCaptureMask)
{
SetCapture(window->win32.hWnd);
}
oc_appData.win32.mouseCaptureMask |= (1 << button);
}
else if(action == OC_KEY_RELEASE)
{
oc_appData.win32.mouseCaptureMask &= ~(1 << button);
if(!oc_appData.win32.mouseCaptureMask)
{
ReleaseCapture();
}
}
//TODO click/double click
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(window);
event.type = OC_EVENT_MOUSE_BUTTON;
event.key.action = action;
event.key.code = button;
event.key.mods = oc_get_mod_keys();
oc_queue_event(&event);
}
static void oc_win32_process_wheel_event(oc_window_data* window, f32 x, f32 y)
{
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(window);
event.type = OC_EVENT_MOUSE_WHEEL;
// Borrowed from https://source.chromium.org/chromium/chromium/src/+/3e1a26c44c024d97dc9a4c09bbc6a2365398ca2c:ui/events/blink/web_input_event_builders_win.cc;l=318-330
f32 scrollMultiplier = oc_appData.win32.wheelScrollLines * 100.0 / 3.0;
event.mouse.deltaX = x / WHEEL_DELTA * scrollMultiplier;
event.mouse.deltaY = -y / WHEEL_DELTA * scrollMultiplier;
event.mouse.mods = oc_get_mod_keys();
oc_queue_event(&event);
}
static void oc_win32_update_child_layers(oc_window_data* window)
{
RECT clientRect;
GetClientRect(window->win32.hWnd, &clientRect);
POINT point = { 0 };
ClientToScreen(window->win32.hWnd, &point);
int clientWidth = (clientRect.right - clientRect.left);
int clientHeight = (clientRect.bottom - clientRect.top);
HWND insertAfter = window->win32.hWnd;
oc_list_for(&window->win32.layers, layer, oc_layer, listElt)
{
SetWindowPos(layer->hWnd,
insertAfter,
point.x,
point.y,
clientWidth,
clientHeight,
SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER);
insertAfter = layer->hWnd;
}
}
LRESULT oc_win32_win_proc(HWND windowHandle, UINT message, WPARAM wParam, LPARAM lParam)
{
LRESULT result = 0;
oc_window_data* mpWindow = GetPropW(windowHandle, L"MilePost");
//TODO: put messages in queue
bool handled = true;
switch(message)
{
case WM_CLOSE:
{
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
event.type = OC_EVENT_WINDOW_CLOSE;
oc_queue_event(&event);
}
break;
case WM_DPICHANGED:
{
u32 dpi = HIWORD(wParam);
RECT rect = *(RECT*)lParam;
SetWindowPos(mpWindow->win32.hWnd,
HWND_TOP,
rect.left,
rect.top,
rect.right - rect.left,
rect.bottom - rect.top,
SWP_NOACTIVATE | SWP_NOZORDER);
//TODO: send a message
}
break;
//TODO: enter/exit size & move
case WM_WINDOWPOSCHANGED:
{
oc_win32_update_child_layers(mpWindow);
result = DefWindowProc(windowHandle, message, wParam, lParam);
}
break;
case WM_SIZING:
case WM_MOVING:
{
RECT* rect = (RECT*)lParam;
oc_event event = { 0 };
event.type = message == WM_SIZING ? OC_EVENT_WINDOW_RESIZE : OC_EVENT_WINDOW_MOVE;
event.window = oc_window_handle_from_ptr(mpWindow);
event.move.frame = oc_window_get_frame_rect(event.window);
event.move.content = oc_window_get_content_rect(event.window);
oc_queue_event(&event);
oc_win32_update_child_layers(mpWindow);
}
break;
case WM_SETFOCUS:
{
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
event.type = OC_EVENT_WINDOW_FOCUS;
oc_queue_event(&event);
}
break;
case WM_KILLFOCUS:
{
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
event.type = OC_EVENT_WINDOW_UNFOCUS;
oc_queue_event(&event);
}
break;
case WM_SIZE:
{
bool minimized = (wParam == SIZE_MINIMIZED);
if(minimized != mpWindow->minimized)
{
mpWindow->minimized = minimized;
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
if(minimized)
{
event.type = OC_EVENT_WINDOW_HIDE;
}
else if(mpWindow->minimized)
{
event.type = OC_EVENT_WINDOW_SHOW;
}
oc_queue_event(&event);
}
}
break;
case WM_LBUTTONDOWN:
{
oc_win32_process_mouse_event(mpWindow, OC_KEY_PRESS, OC_MOUSE_LEFT);
}
break;
case WM_RBUTTONDOWN:
{
oc_win32_process_mouse_event(mpWindow, OC_KEY_PRESS, OC_MOUSE_RIGHT);
}
break;
case WM_MBUTTONDOWN:
{
oc_win32_process_mouse_event(mpWindow, OC_KEY_PRESS, OC_MOUSE_MIDDLE);
}
break;
case WM_LBUTTONUP:
{
oc_win32_process_mouse_event(mpWindow, OC_KEY_RELEASE, OC_MOUSE_LEFT);
}
break;
case WM_RBUTTONUP:
{
oc_win32_process_mouse_event(mpWindow, OC_KEY_RELEASE, OC_MOUSE_RIGHT);
}
break;
case WM_MBUTTONUP:
{
oc_win32_process_mouse_event(mpWindow, OC_KEY_RELEASE, OC_MOUSE_MIDDLE);
}
break;
case WM_MOUSEMOVE:
{
RECT rect;
GetClientRect(mpWindow->win32.hWnd, &rect);
u32 dpi = GetDpiForWindow(mpWindow->win32.hWnd);
f32 scaling = (f32)dpi / 96.;
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
event.type = OC_EVENT_MOUSE_MOVE;
event.mouse.x = LOWORD(lParam) / scaling;
event.mouse.y = HIWORD(lParam) / scaling;
if(oc_appData.win32.mouseTracked || oc_appData.win32.mouseCaptureMask)
{
event.mouse.deltaX = event.mouse.x - oc_appData.win32.lastMousePos.x;
event.mouse.deltaY = event.mouse.y - oc_appData.win32.lastMousePos.y;
}
oc_appData.win32.lastMousePos = (oc_vec2){ event.mouse.x, event.mouse.y };
if(!oc_appData.win32.mouseTracked)
{
oc_appData.win32.mouseTracked = true;
TRACKMOUSEEVENT track;
memset(&track, 0, sizeof(track));
track.cbSize = sizeof(track);
track.dwFlags = TME_LEAVE;
track.hwndTrack = mpWindow->win32.hWnd;
TrackMouseEvent(&track);
oc_event enter = { .window = event.window,
.type = OC_EVENT_MOUSE_ENTER,
.mouse.x = event.mouse.x,
.mouse.y = event.mouse.y };
oc_queue_event(&enter);
}
oc_queue_event(&event);
}
break;
case WM_MOUSELEAVE:
{
oc_appData.win32.mouseTracked = false;
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
event.type = OC_EVENT_MOUSE_LEAVE;
oc_queue_event(&event);
}
break;
case WM_MOUSEWHEEL:
{
oc_win32_process_wheel_event(mpWindow, 0, (float)((i16)HIWORD(wParam)));
}
break;
case WM_MOUSEHWHEEL:
{
oc_win32_process_wheel_event(mpWindow, (float)((i16)HIWORD(wParam)), 0);
}
break;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
{
// Need to pass these through to the normal event handler to handle system shortcuts like Alt+F4.
// Same for WM_SYSKEYUP
if(message == WM_SYSKEYDOWN)
{
handled = false;
}
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
event.type = OC_EVENT_KEYBOARD_KEY;
event.key.action = (lParam & 0x40000000) ? OC_KEY_REPEAT : OC_KEY_PRESS;
event.key.code = oc_convert_win32_key(HIWORD(lParam) & 0x1ff);
event.key.mods = oc_get_mod_keys();
oc_queue_event(&event);
}
break;
case WM_KEYUP:
case WM_SYSKEYUP:
{
if(message == WM_SYSKEYUP)
{
handled = false;
}
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
event.type = OC_EVENT_KEYBOARD_KEY;
event.key.action = OC_KEY_RELEASE;
event.key.code = oc_convert_win32_key(HIWORD(lParam) & 0x1ff);
event.key.mods = oc_get_mod_keys();
oc_queue_event(&event);
}
break;
case WM_CHAR:
{
if((u32)wParam >= 32)
{
oc_event event = { 0 };
event.window = oc_window_handle_from_ptr(mpWindow);
event.type = OC_EVENT_KEYBOARD_CHAR;
event.character.codepoint = (oc_utf32)wParam;
oc_str8 seq = oc_utf8_encode(event.character.sequence, event.character.codepoint);
event.character.seqLen = seq.len;
oc_queue_event(&event);
}
}
break;
case WM_SETTINGCHANGE:
{
if((u32)wParam == SPI_SETWHEELSCROLLLINES)
{
u32 wheelScrollLines;
if(SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &wheelScrollLines, 0) != 0)
{
oc_appData.win32.wheelScrollLines = wheelScrollLines;
}
}
}
break;
case WM_DROPFILES:
{
//TODO
}
break;
case OC_WM_USER_DISPATCH_PROC:
{
oc_dispatch_proc proc = (oc_dispatch_proc)wParam;
void* user = (void*)lParam;
result = proc(user);
}
break;
default:
{
handled = false;
}
break;
}
if(handled == false)
{
result = DefWindowProc(windowHandle, message, wParam, lParam);
}
return (result);
}
//--------------------------------------------------------------------
// app management
//--------------------------------------------------------------------
bool oc_should_quit()
{
return (oc_appData.shouldQuit);
}
void oc_cancel_quit()
{
oc_appData.shouldQuit = false;
}
void oc_request_quit()
{
oc_appData.shouldQuit = true;
}
void oc_pump_events(f64 timeout)
{
MSG message;
if(timeout < 0)
{
WaitMessage();
}
else if(timeout > 0)
{
MsgWaitForMultipleObjects(0, NULL, FALSE, (DWORD)(timeout * 1e3), QS_ALLEVENTS);
}
while(PeekMessage(&message, 0, 0, 0, PM_REMOVE))
{
TranslateMessage(&message);
DispatchMessage(&message);
}
}
i32 oc_dispatch_on_main_thread_sync(oc_window main_window, oc_dispatch_proc proc, void* user)
{
oc_window_data* window_data = oc_window_ptr_from_handle(main_window);
OC_DEBUG_ASSERT(window_data != NULL);
LRESULT result = SendMessage(window_data->win32.hWnd, OC_WM_USER_DISPATCH_PROC, (WPARAM)proc, (LPARAM)user);
return result;
}
//--------------------------------------------------------------------
// window management
//--------------------------------------------------------------------
//WARN: the following header pulls in objbase.h (even with WIN32_LEAN_AND_MEAN), which
// #defines interface to struct... so make sure to #undef interface since it's a
// name we want to be able to use throughout the codebase
#include <ShellScalingApi.h>
#undef interface
oc_window oc_window_create(oc_rect rect, oc_str8 title, oc_window_style style)
{
WNDCLASS windowClass = { .style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC,
.lpfnWndProc = oc_win32_win_proc,
.hInstance = GetModuleHandleW(NULL),
.lpszClassName = "ApplicationWindowClass",
.hCursor = LoadCursor(0, IDC_ARROW) };
if(!RegisterClass(&windowClass))
{
//TODO: error
goto quit;
}
u32 dpiX, dpiY;
HMONITOR monitor = MonitorFromPoint((POINT){ rect.x, rect.y }, MONITOR_DEFAULTTOPRIMARY);
GetDpiForMonitor(monitor, MDT_EFFECTIVE_DPI, &dpiX, &dpiY);
f32 scaleX = (f32)dpiX / 96.;
f32 scaleY = (f32)dpiY / 96.;
RECT frame = {
rect.x * scaleX,
rect.y * scaleY,
(rect.x + rect.w) * scaleX,
(rect.y + rect.h) * scaleY
};
DWORD winStyle = WS_OVERLAPPEDWINDOW;
AdjustWindowRect(&frame, winStyle, FALSE);
oc_arena_scope scratch = oc_scratch_begin();
const char* titleCString = oc_str8_to_cstring(scratch.arena, title);
HWND windowHandle = CreateWindow("ApplicationWindowClass", titleCString,
winStyle,
frame.left, frame.top,
frame.right - frame.left,
frame.bottom - frame.top,
0, 0, windowClass.hInstance, 0);
oc_scratch_end(scratch);
if(!windowHandle)
{
//TODO: error
goto quit;
}
UpdateWindow(windowHandle);
//TODO: return wrapped window
quit:;
oc_window_data* window = oc_window_alloc();
window->win32.hWnd = windowHandle;
window->win32.layers = (oc_list){ 0 };
SetPropW(windowHandle, L"MilePost", window);
return (oc_window_handle_from_ptr(window));
}
void oc_window_destroy(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
DestroyWindow(windowData->win32.hWnd);
//TODO: check when to unregister class
oc_window_recycle_ptr(windowData);
}
}
void* oc_window_native_pointer(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
return (windowData->win32.hWnd);
}
else
{
return (0);
}
}
bool oc_window_should_close(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
return (windowData->shouldClose);
}
else
{
return (false);
}
}
void oc_window_request_close(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
windowData->shouldClose = true;
PostMessage(windowData->win32.hWnd, WM_CLOSE, 0, 0);
}
}
void oc_window_cancel_close(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
windowData->shouldClose = false;
}
}
bool oc_window_is_hidden(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
return (IsWindowVisible(windowData->win32.hWnd));
}
else
{
return (false);
}
}
void oc_window_hide(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
ShowWindow(windowData->win32.hWnd, SW_HIDE);
}
}
void oc_window_show(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
ShowWindow(windowData->win32.hWnd, SW_NORMAL);
}
}
bool oc_window_is_minimized(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
return (windowData->minimized);
}
else
{
return (false);
}
}
void oc_window_minimize(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
ShowWindow(windowData->win32.hWnd, SW_MINIMIZE);
}
}
void oc_window_maximize(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
ShowWindow(windowData->win32.hWnd, SW_MAXIMIZE);
}
}
void oc_window_restore(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
ShowWindow(windowData->win32.hWnd, SW_RESTORE);
}
}
bool oc_window_has_focus(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
return (GetActiveWindow() == windowData->win32.hWnd);
}
else
{
return (false);
}
}
void oc_window_focus(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
SetFocus(windowData->win32.hWnd);
}
}
void oc_window_unfocus(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
SetFocus(0);
}
}
void oc_window_send_to_back(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
SetWindowPos(windowData->win32.hWnd, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
}
}
void oc_window_bring_to_front(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
if(!IsWindowVisible(windowData->win32.hWnd))
{
ShowWindow(windowData->win32.hWnd, SW_NORMAL);
}
SetWindowPos(windowData->win32.hWnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
}
}
oc_rect oc_window_get_frame_rect(oc_window window)
{
oc_rect rect = { 0 };
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
//NOTE: GetWindowRect() includes the drop shadow, which we don't want, so we call
// DwmGetWindowAttribute() instead.
// Note that contrary to what the GetWindowRect() docs suggests when mentionning
// this, DwmGetWindowAttributes() _does_ seem to adjust for DPI.
u32 dpi = GetDpiForWindow(windowData->win32.hWnd);
f32 scale = (float)dpi / 96.;
RECT frame;
HRESULT res = DwmGetWindowAttribute(windowData->win32.hWnd,
DWMWA_EXTENDED_FRAME_BOUNDS,
&frame,
sizeof(RECT));
if(res == S_OK)
{
rect = (oc_rect){
frame.left / scale,
frame.top / scale,
(frame.right - frame.left) / scale,
(frame.bottom - frame.top) / scale
};
}
}
return (rect);
}
static oc_rect oc_win32_get_drop_shadow_offsets(HWND hWnd)
{
RECT frameIncludingShadow;
RECT frameExcludingShadow;
GetWindowRect(hWnd, &frameIncludingShadow);
DwmGetWindowAttribute(hWnd,
DWMWA_EXTENDED_FRAME_BOUNDS,
&frameExcludingShadow,
sizeof(RECT));
oc_rect extents = {
.x = frameIncludingShadow.left - frameExcludingShadow.left,
.y = frameIncludingShadow.top - frameExcludingShadow.top,
.w = frameIncludingShadow.right - frameExcludingShadow.right,
.h = frameIncludingShadow.bottom - frameExcludingShadow.bottom
};
return (extents);
}
void oc_window_set_frame_rect(oc_window window, oc_rect rect)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
u32 dpi = GetDpiForWindow(windowData->win32.hWnd);
f32 scale = (float)dpi / 96.;
//NOTE compute the size of the drop shadow to add it in setwindowpos
oc_rect shadowOffsets = oc_win32_get_drop_shadow_offsets(windowData->win32.hWnd);
RECT frame = {
rect.x * scale + shadowOffsets.x,
rect.y * scale + shadowOffsets.y,
(rect.x + rect.w) * scale + shadowOffsets.w,
(rect.y + rect.h) * scale + shadowOffsets.h
};
SetWindowPos(windowData->win32.hWnd,
HWND_TOP,
frame.left,
frame.top,
frame.right - frame.left,
frame.bottom - frame.top,
SWP_NOZORDER | SWP_NOACTIVATE);
}
}
oc_rect oc_window_get_content_rect(oc_window window)
{
oc_rect rect = { 0 };
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
RECT client;
if(GetClientRect(windowData->win32.hWnd, &client))
{
u32 dpi = GetDpiForWindow(windowData->win32.hWnd);
f32 scale = (float)dpi / 96.;
POINT origin = { 0, 0 };
ClientToScreen(windowData->win32.hWnd, &origin);
rect = (oc_rect){
origin.x / scale,
origin.y / scale,
(client.right - client.left) / scale,
(client.bottom - client.top) / scale
};
}
}
return (rect);
}
void oc_window_set_content_rect(oc_window window, oc_rect rect)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
u32 dpi = GetDpiForWindow(windowData->win32.hWnd);
f32 scale = (float)dpi / 96.;
RECT frame = {
rect.x * scale,
rect.y * scale,
(rect.x + rect.w) * scale,
(rect.y + rect.h) * scale
};
DWORD style = GetWindowLong(windowData->win32.hWnd, GWL_STYLE);
BOOL menu = (GetMenu(windowData->win32.hWnd) != NULL);
AdjustWindowRect(&frame, style, menu);
SetWindowPos(windowData->win32.hWnd,
HWND_TOP,
frame.left,
frame.top,
frame.right - frame.left,
frame.bottom - frame.top,
SWP_NOZORDER | SWP_NOACTIVATE);
}
}
void oc_window_center(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
oc_rect frame = oc_window_get_frame_rect(window);
HMONITOR monitor = MonitorFromWindow(windowData->win32.hWnd, MONITOR_DEFAULTTOPRIMARY);
if(monitor)
{
MONITORINFO monitorInfo = { .cbSize = sizeof(MONITORINFO) };
GetMonitorInfoW(monitor, &monitorInfo);
int dpiX, dpiY;
GetDpiForMonitor(monitor, MDT_EFFECTIVE_DPI, &dpiX, &dpiY);
f32 scaleX = dpiX / 96.;
f32 scaleY = dpiY / 96.;
f32 monX = monitorInfo.rcWork.left / scaleX;
f32 monY = monitorInfo.rcWork.top / scaleY;
f32 monW = (monitorInfo.rcWork.right - monitorInfo.rcWork.left) / scaleX;
f32 monH = (monitorInfo.rcWork.bottom - monitorInfo.rcWork.top) / scaleY;
frame.x = monX + 0.5 * (monW - frame.w);
frame.y = monY + 0.5 * (monH - frame.h);
oc_window_set_frame_rect(window, frame);
}
}
}
//--------------------------------------------------------------------------------
// clipboard functions
//--------------------------------------------------------------------------------
void oc_clipboard_clear(void)
{
if(OpenClipboard(NULL))
{
EmptyClipboard();
CloseClipboard();
}
}
void oc_clipboard_set_string(oc_str8 string)
{
if(OpenClipboard(NULL))
{
EmptyClipboard();
int wideCount = MultiByteToWideChar(CP_UTF8, 0, string.ptr, string.len, 0, 0);
HANDLE handle = GlobalAlloc(GMEM_MOVEABLE, (wideCount + 1) * sizeof(wchar_t));
if(handle)
{
char* memory = GlobalLock(handle);
if(memory)
{
MultiByteToWideChar(CP_UTF8, 0, string.ptr, string.len, (wchar_t*)memory, wideCount);
((wchar_t*)memory)[wideCount] = '\0';
GlobalUnlock(handle);
SetClipboardData(CF_UNICODETEXT, handle);
}
}
CloseClipboard();
}
}
oc_str8 oc_clipboard_get_string(oc_arena* arena)
{
oc_str8 string = { 0 };
if(OpenClipboard(NULL))
{
HANDLE handle = GetClipboardData(CF_UNICODETEXT);
if(handle)
{
char* memory = GlobalLock(handle);
if(memory)
{
u64 size = WideCharToMultiByte(CP_UTF8, 0, (wchar_t*)memory, -1, 0, 0, 0, 0);
if(size)
{
string.ptr = oc_arena_push(arena, size);
string.len = size - 1;
WideCharToMultiByte(CP_UTF8, 0, (wchar_t*)memory, -1, string.ptr, size, 0, 0);
GlobalUnlock(handle);
}
}
}
CloseClipboard();
}
return (string);
}
oc_str8 oc_clipboard_copy_string(oc_str8 backing)
{
//TODO
return ((oc_str8){ 0 });
}
//--------------------------------------------------------------------------------
// win32 surfaces
//--------------------------------------------------------------------------------
#include "graphics/graphics_surface.h"
oc_vec2 oc_win32_surface_contents_scaling(oc_surface_data* surface)
{
u32 dpi = GetDpiForWindow(surface->layer.hWnd);
oc_vec2 contentsScaling = (oc_vec2){ (float)dpi / 96., (float)dpi / 96. };
return (contentsScaling);
}
oc_vec2 oc_win32_surface_get_size(oc_surface_data* surface)
{
oc_vec2 size = { 0 };
RECT rect;
if(GetClientRect(surface->layer.hWnd, &rect))
{
u32 dpi = GetDpiForWindow(surface->layer.hWnd);
f32 scale = (float)dpi / 96.;
size = (oc_vec2){ (rect.right - rect.left) / scale, (rect.bottom - rect.top) / scale };
}
return (size);
}
bool oc_win32_surface_get_hidden(oc_surface_data* surface)
{
bool hidden = !IsWindowVisible(surface->layer.hWnd);
return (hidden);
}
void oc_win32_surface_set_hidden(oc_surface_data* surface, bool hidden)
{
ShowWindow(surface->layer.hWnd, hidden ? SW_HIDE : SW_NORMAL);
}
void* oc_win32_surface_native_layer(oc_surface_data* surface)
{
return ((void*)surface->layer.hWnd);
}
oc_surface_id oc_win32_surface_remote_id(oc_surface_data* surface)
{
return ((oc_surface_id)surface->layer.hWnd);
}
void oc_win32_surface_host_connect(oc_surface_data* surface, oc_surface_id remoteID)
{
HWND dstWnd = surface->layer.hWnd;
HWND srcWnd = (HWND)remoteID;
RECT dstRect;
GetClientRect(dstWnd, &dstRect);
SetParent(srcWnd, dstWnd);
ShowWindow(srcWnd, SW_NORMAL);
SetWindowPos(srcWnd,
HWND_TOP,
0,
0,
dstRect.right - dstRect.left,
dstRect.bottom - dstRect.top,
SWP_NOACTIVATE | SWP_NOZORDER);
}
void oc_surface_cleanup(oc_surface_data* surface)
{
oc_list_remove(&surface->layer.parent->win32.layers, &surface->layer.listElt);
DestroyWindow(surface->layer.hWnd);
}
LRESULT LayerWinProc(HWND windowHandle, UINT message, WPARAM wParam, LPARAM lParam)
{
if(message == WM_NCHITTEST)
{
return (HTTRANSPARENT);
}
else
{
return (DefWindowProc(windowHandle, message, wParam, lParam));
}
}
void oc_surface_init_for_window(oc_surface_data* surface, oc_window_data* window)
{
surface->contentsScaling = oc_win32_surface_contents_scaling;
surface->getSize = oc_win32_surface_get_size;
surface->getHidden = oc_win32_surface_get_hidden;
surface->setHidden = oc_win32_surface_set_hidden;
surface->nativeLayer = oc_win32_surface_native_layer;
//NOTE(martin): create a child window for the surface
WNDCLASS layerWindowClass = { .style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC,
.lpfnWndProc = LayerWinProc,
.hInstance = GetModuleHandleW(NULL),
.lpszClassName = "layer_window_class",
.hCursor = LoadCursor(0, IDC_ARROW) };
RegisterClass(&layerWindowClass);
RECT parentRect;
GetClientRect(window->win32.hWnd, &parentRect);
POINT point = { 0 };
ClientToScreen(window->win32.hWnd, &point);
int clientWidth = parentRect.right - parentRect.left;
int clientHeight = parentRect.bottom - parentRect.top;
surface->layer.hWnd = CreateWindow("layer_window_class", "layer",
WS_POPUP | WS_VISIBLE,
point.x, point.y, clientWidth, clientHeight,
window->win32.hWnd,
0,
layerWindowClass.hInstance,
0);
HRGN region = CreateRectRgn(0, 0, -1, -1);
DWM_BLURBEHIND bb = { 0 };
bb.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;
bb.hRgnBlur = region;
bb.fEnable = TRUE;
HRESULT res = DwmEnableBlurBehindWindow(surface->layer.hWnd, &bb);
DeleteObject(region);
if(res != S_OK)
{
oc_log_error("couldn't enable blur behind\n");
}
//NOTE(reuben): Creating the child window takes focus away from the main window, but we want to keep
//the focus on the main window
SetFocus(window->win32.hWnd);
surface->layer.parent = window;
oc_list_append(&window->win32.layers, &surface->layer.listElt);
}
void oc_surface_init_remote(oc_surface_data* surface, u32 width, u32 height)
{
surface->contentsScaling = oc_win32_surface_contents_scaling;
surface->getSize = oc_win32_surface_get_size;
surface->getHidden = oc_win32_surface_get_hidden;
surface->setHidden = oc_win32_surface_set_hidden;
surface->nativeLayer = oc_win32_surface_native_layer;
surface->remoteID = oc_win32_surface_remote_id;
WNDCLASS layerWindowClass = { .style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC,
.lpfnWndProc = DefWindowProc,
.hInstance = GetModuleHandleW(NULL),
.lpszClassName = "server_layer_window_class",
.hCursor = LoadCursor(0, IDC_ARROW) };
RegisterClass(&layerWindowClass);
//NOTE(martin): create a temporary parent window. This seems like a necessary hack, because if layer window is created as
// a normal window first, and then parented to the client window, it breaks resizing the parent
// window for some reason...
HWND tmpParent = CreateWindow("server_layer_window_class", "layerParent",
WS_OVERLAPPED,
0, 0, width, height,
0,
0,
layerWindowClass.hInstance,
0);
//NOTE: create the layer window
surface->layer.hWnd = CreateWindowEx(WS_EX_NOACTIVATE,
"server_layer_window_class", "layer",
WS_CHILD,
0, 0, width, height,
tmpParent,
0,
layerWindowClass.hInstance,
0);
//NOTE: unparent it and destroy tmp parent
SetParent(surface->layer.hWnd, 0);
DestroyWindow(tmpParent);
}
oc_surface_data* oc_win32_surface_create_host(oc_window window)
{
oc_surface_data* surface = 0;
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(windowData)
{
surface = oc_malloc_type(oc_surface_data);
if(surface)
{
memset(surface, 0, sizeof(oc_surface_data));
oc_surface_init_for_window(surface, windowData);
surface->api = OC_HOST;
surface->hostConnect = oc_win32_surface_host_connect;
}
}
return (surface);
}
//--------------------------------------------------------------------
// native open/save/alert windows
//--------------------------------------------------------------------
//TODO: GetOpenFileName() doesn't seem to support selecting folders, and
// requires filters which pair a "descriptive" name with an extension
#define interface struct
#include <shobjidl.h>
#include <shtypes.h>
#undef interface
oc_str8 oc_open_dialog(oc_arena* arena,
oc_str8 title,
oc_str8 defaultPath,
oc_str8_list filters,
bool directory)
{
oc_str8 res = { 0 };
HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
if(SUCCEEDED(hr))
{
IFileOpenDialog* dialog = 0;
hr = CoCreateInstance(&CLSID_FileOpenDialog, NULL, CLSCTX_ALL, &IID_IFileOpenDialog, (void**)&dialog);
if(SUCCEEDED(hr))
{
if(directory)
{
FILEOPENDIALOGOPTIONS opt;
dialog->lpVtbl->GetOptions(dialog, &opt);
dialog->lpVtbl->SetOptions(dialog, opt | FOS_PICKFOLDERS);
}
if(filters.eltCount)
{
oc_arena_scope tmp = oc_arena_scope_begin(arena);
COMDLG_FILTERSPEC* filterSpecs = oc_arena_push_array(arena, COMDLG_FILTERSPEC, filters.eltCount);
int i = 0;
oc_list_for(&filters.list, elt, oc_str8_elt, listElt)
{
oc_str8_list list = { 0 };
oc_str8_list_push(arena, &list, OC_STR8("*."));
oc_str8_list_push(arena, &list, elt->string);
oc_str8 filter = oc_str8_list_join(arena, list);
int filterWideSize = 1 + MultiByteToWideChar(CP_UTF8, 0, filter.ptr, filter.len, NULL, 0);
filterSpecs[i].pszSpec = oc_arena_push_array(arena, wchar_t, filterWideSize);
MultiByteToWideChar(CP_UTF8, 0, filter.ptr, filter.len, (LPWSTR)filterSpecs[i].pszSpec, filterWideSize);
((LPWSTR)(filterSpecs[i].pszSpec))[filterWideSize - 1] = 0;
filterSpecs[i].pszName = filterSpecs[i].pszSpec;
i++;
}
hr = dialog->lpVtbl->SetFileTypes(dialog, i, filterSpecs);
oc_arena_scope_end(tmp);
}
if(defaultPath.len)
{
oc_arena_scope tmp = oc_arena_scope_begin(arena);
int pathWideSize = MultiByteToWideChar(CP_UTF8, 0, defaultPath.ptr, defaultPath.len, NULL, 0);
LPWSTR pathWide = oc_arena_push_array(arena, wchar_t, pathWideSize + 1);
MultiByteToWideChar(CP_UTF8, 0, defaultPath.ptr, defaultPath.len, pathWide, pathWideSize);
pathWide[pathWideSize] = '\0';
IShellItem* item = 0;
hr = SHCreateItemFromParsingName(pathWide, NULL, &IID_IShellItem, (void**)&item);
if(SUCCEEDED(hr))
{
hr = dialog->lpVtbl->SetFolder(dialog, item);
item->lpVtbl->Release(item);
}
oc_arena_scope_end(tmp);
}
hr = dialog->lpVtbl->Show(dialog, NULL);
if(SUCCEEDED(hr))
{
IShellItem* item;
hr = dialog->lpVtbl->GetResult(dialog, &item);
if(SUCCEEDED(hr))
{
PWSTR filePath;
hr = item->lpVtbl->GetDisplayName(item, SIGDN_FILESYSPATH, &filePath);
if(SUCCEEDED(hr))
{
int oc_utf8Size = WideCharToMultiByte(CP_UTF8, 0, filePath, -1, NULL, 0, NULL, NULL);
if(oc_utf8Size > 0)
{
res.ptr = oc_arena_push(arena, oc_utf8Size);
res.len = oc_utf8Size - 1;
WideCharToMultiByte(CP_UTF8, 0, filePath, -1, res.ptr, oc_utf8Size, NULL, NULL);
}
CoTaskMemFree(filePath);
}
item->lpVtbl->Release(item);
}
}
}
}
CoUninitialize();
return (res);
}
oc_str8 oc_save_dialog(oc_arena* arena,
oc_str8 title,
oc_str8 defaultPath,
oc_str8_list filters)
{
oc_str8 res = { 0 };
HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
if(SUCCEEDED(hr))
{
IFileOpenDialog* dialog = 0;
hr = CoCreateInstance(&CLSID_FileSaveDialog, NULL, CLSCTX_ALL, &IID_IFileSaveDialog, (void**)&dialog);
if(SUCCEEDED(hr))
{
if(filters.eltCount)
{
oc_arena_scope tmp = oc_arena_scope_begin(arena);
COMDLG_FILTERSPEC* filterSpecs = oc_arena_push_array(arena, COMDLG_FILTERSPEC, filters.eltCount);
int i = 0;
oc_list_for(&filters.list, elt, oc_str8_elt, listElt)
{
oc_str8_list list = { 0 };
oc_str8_list_push(arena, &list, OC_STR8("*."));
oc_str8_list_push(arena, &list, elt->string);
oc_str8 filter = oc_str8_list_join(arena, list);
int filterWideSize = 1 + MultiByteToWideChar(CP_UTF8, 0, filter.ptr, filter.len, NULL, 0);
filterSpecs[i].pszSpec = oc_arena_push_array(arena, wchar_t, filterWideSize);
MultiByteToWideChar(CP_UTF8, 0, filter.ptr, filter.len, (LPWSTR)filterSpecs[i].pszSpec, filterWideSize);
((LPWSTR)(filterSpecs[i].pszSpec))[filterWideSize - 1] = 0;
filterSpecs[i].pszName = filterSpecs[i].pszSpec;
i++;
}
hr = dialog->lpVtbl->SetFileTypes(dialog, i, filterSpecs);
oc_arena_scope_end(tmp);
}
if(defaultPath.len)
{
oc_arena_scope tmp = oc_arena_scope_begin(arena);
int pathWideSize = MultiByteToWideChar(CP_UTF8, 0, defaultPath.ptr, defaultPath.len, NULL, 0);
LPWSTR pathWide = oc_arena_push_array(arena, wchar_t, pathWideSize + 1);
MultiByteToWideChar(CP_UTF8, 0, defaultPath.ptr, defaultPath.len, pathWide, pathWideSize);
pathWide[pathWideSize] = '\0';
IShellItem* item = 0;
hr = SHCreateItemFromParsingName(pathWide, NULL, &IID_IShellItem, (void**)&item);
if(SUCCEEDED(hr))
{
hr = dialog->lpVtbl->SetFolder(dialog, item);
item->lpVtbl->Release(item);
}
oc_arena_scope_end(tmp);
}
hr = dialog->lpVtbl->Show(dialog, NULL);
if(SUCCEEDED(hr))
{
IShellItem* item;
hr = dialog->lpVtbl->GetResult(dialog, &item);
if(SUCCEEDED(hr))
{
PWSTR filePath;
hr = item->lpVtbl->GetDisplayName(item, SIGDN_FILESYSPATH, &filePath);
if(SUCCEEDED(hr))
{
int oc_utf8Size = WideCharToMultiByte(CP_UTF8, 0, filePath, -1, NULL, 0, NULL, NULL);
if(oc_utf8Size > 0)
{
res.ptr = oc_arena_push(arena, oc_utf8Size);
res.len = oc_utf8Size - 1;
WideCharToMultiByte(CP_UTF8, 0, filePath, -1, res.ptr, oc_utf8Size, NULL, NULL);
}
CoTaskMemFree(filePath);
}
item->lpVtbl->Release(item);
}
}
}
}
CoUninitialize();
return (res);
}
#include <commctrl.h>
int oc_alert_popup(oc_str8 title,
oc_str8 message,
oc_str8_list options)
{
oc_arena_scope scratch = oc_scratch_begin();
TASKDIALOG_BUTTON* buttons = oc_arena_push_array(scratch.arena, TASKDIALOG_BUTTON, options.eltCount);
int i = 0;
oc_list_for(&options.list, elt, oc_str8_elt, listElt)
{
int textWideSize = MultiByteToWideChar(CP_UTF8, 0, elt->string.ptr, elt->string.len, NULL, 0);
wchar_t* textWide = oc_arena_push_array(scratch.arena, wchar_t, textWideSize + 1);
MultiByteToWideChar(CP_UTF8, 0, elt->string.ptr, elt->string.len, textWide, textWideSize);
textWide[textWideSize] = '\0';
buttons[i].nButtonID = i + 1;
buttons[i].pszButtonText = textWide;
i++;
}
int titleWideSize = MultiByteToWideChar(CP_UTF8, 0, title.ptr, title.len, NULL, 0);
wchar_t* titleWide = oc_arena_push_array(scratch.arena, wchar_t, titleWideSize + 1);
MultiByteToWideChar(CP_UTF8, 0, title.ptr, title.len, titleWide, titleWideSize);
titleWide[titleWideSize] = '\0';
int messageWideSize = MultiByteToWideChar(CP_UTF8, 0, message.ptr, message.len, NULL, 0);
wchar_t* messageWide = oc_arena_push_array(scratch.arena, wchar_t, messageWideSize + 1);
MultiByteToWideChar(CP_UTF8, 0, message.ptr, message.len, messageWide, messageWideSize);
messageWide[messageWideSize] = '\0';
TASKDIALOGCONFIG config = {
.cbSize = sizeof(TASKDIALOGCONFIG),
.hwndParent = NULL,
.hInstance = NULL,
.dwFlags = 0,
.dwCommonButtons = 0,
.pszWindowTitle = titleWide,
.hMainIcon = 0,
.pszMainIcon = TD_WARNING_ICON,
.pszMainInstruction = messageWide,
.pszContent = NULL,
.cButtons = options.eltCount,
.pButtons = buttons,
.nDefaultButton = 0,
};
int button = -1;
HRESULT hRes = TaskDialogIndirect(&config, &button, NULL, NULL);
if(hRes == S_OK)
{
if(button == IDCANCEL)
{
button = -1;
}
else
{
button--;
}
}
oc_scratch_end(scratch);
return (button);
}