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Implement new window dragging system

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This commit is contained in:
Ari Vuollet
2025-01-21 20:14:44 +02:00
parent b91837e783
commit 2944c640ca
23 changed files with 6250 additions and 627 deletions
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81
Source/Engine/Platform/SDL/SDLPlatform.Windows.cpp
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@@ -1,16 +1,24 @@
// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
#if PLATFORM_SDL && PLATFORM_WINDOWS
#include "SDLPlatform.h"
#include "SDLInput.h"
#include "Engine/Core/Collections/Array.h"
#include "Engine/Platform/WindowsManager.h"
#include "Engine/Platform/Win32/IncludeWindowsHeaders.h"
#include "Engine/Input/Mouse.h"
#include "Engine/Core/Log.h"
#include <SDL3/SDL_hints.h>
#include <SDL3/SDL_init.h>
#include <SDL3/SDL_system.h>
#include <SDL3/SDL_timer.h>
extern Window* draggedWindow;
Float2 draggedWindowStartPosition = Float2::Zero;
Float2 draggedWindowMousePosition = Float2::Zero;
// The events for releasing the mouse during window dragging are missing, handle the mouse release event here
bool SDLCALL SDLPlatform::EventMessageHook(void* userdata, MSG* msg)
@@ -31,22 +39,68 @@ bool SDLCALL SDLPlatform::EventMessageHook(void* userdata, MSG* msg)
ASSERT((window) != nullptr); \
} while (false)
if (draggedWindow != nullptr)
{
LOG(Info, "event hook message: {}", msg->message);
}
if (msg->message == WM_NCLBUTTONDOWN)
{
Window* window;
GET_WINDOW_WITH_HWND(window, msg->hwnd);
auto hit = static_cast<WindowHitCodes>(msg->wParam);
if (SDLPlatform::CheckWindowDragging(window, hit))
return false;
draggedWindow = window;
draggedWindowStartPosition = draggedWindow->GetClientPosition();
Float2 mousePos(static_cast<float>(static_cast<LONG>(WINDOWS_GET_X_LPARAM(msg->lParam))), static_cast<float>(static_cast<LONG>(WINDOWS_GET_Y_LPARAM(msg->lParam))));
draggedWindowMousePosition = mousePos;
draggedWindowMousePosition -= draggedWindowStartPosition;
bool result = false;
WindowHitCodes hit = static_cast<WindowHitCodes>(msg->wParam);
window->OnHitTest(mousePos, hit, result);
//if (result && hit != WindowHitCodes::Caption)
// return false;
if (hit == WindowHitCodes::Caption)
{
SDL_Event event{ 0 };
event.button.type = SDL_EVENT_MOUSE_BUTTON_DOWN;
event.button.down = true;
event.button.timestamp = SDL_GetTicksNS();
event.button.windowID = SDL_GetWindowID(window->GetSDLWindow());
event.button.button = SDL_BUTTON_LEFT;
event.button.clicks = 1;
event.button.x = draggedWindowMousePosition.X;
event.button.y = draggedWindowMousePosition.Y;
SDL_PushEvent(&event);
}
}
/*else if (msg->message == WM_NCLBUTTONUP || msg->message == WM_CAPTURECHANGED)
{
windowDragging = false;
Window* window;
GET_WINDOW_WITH_HWND(window, msg->hwnd);
SDL_Event event{ 0 };
event.button.type = SDL_EVENT_MOUSE_BUTTON_UP;
event.button.down = false;
event.button.timestamp = SDL_GetTicksNS();
event.button.windowID = SDL_GetWindowID(window->GetSDLWindow());
event.button.button = SDL_BUTTON_LEFT;
event.button.clicks = 1;
event.button.x = static_cast<float>(static_cast<LONG>(WINDOWS_GET_X_LPARAM(msg->lParam)));
event.button.y = static_cast<float>(static_cast<LONG>(WINDOWS_GET_Y_LPARAM(msg->lParam)));
SDL_PushEvent(&event);
}*/
return true;
#undef GET_WINDOW_WITH_HWND
}
bool SDLPlatform::InitPlatform()
{
// Workaround required for handling window dragging events properly for DockHintWindow
// Workaround required for handling window dragging events properly
SDL_SetWindowsMessageHook(&EventMessageHook, nullptr);
if (WindowsPlatform::Init())
@@ -55,6 +109,21 @@ bool SDLPlatform::InitPlatform()
return false;
}
bool SDLPlatform::UsesWindows()
{
return true;
}
bool SDLPlatform::UsesWayland()
{
return false;
}
bool SDLPlatform::UsesX11()
{
return false;
}
void SDLPlatform::SetHighDpiAwarenessEnabled(bool enable)
{
// Other supported values: "permonitor", "permonitorv2"