mirror of
https://github.com/Blinue/Magpie.git
synced 2026-06-24 02:04:10 +00:00
797 lines
24 KiB
C++
797 lines
24 KiB
C++
#include "pch.h"
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#include "CursorManager.h"
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#include "App.h"
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#include "FrameSourceBase.h"
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#include "Renderer.h"
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#include "Logger.h"
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#include "Utils.h"
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#include "DeviceResources.h"
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#include "Config.h"
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// 将源窗口的光标位置映射到缩放后的光标位置
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// 当光标位于源窗口之外，与源窗口的距离不会缩放
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static POINT SrcToHost(POINT pt, bool screenCoord) {
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const RECT& srcFrameRect = App::Get().GetFrameSource().GetSrcFrameRect();
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const RECT& virtualOutputRect = App::Get().GetRenderer().GetVirtualOutputRect();
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const RECT& hostRect = App::Get().GetHostWndRect();
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POINT result;
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if (screenCoord) {
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result = { hostRect.left, hostRect.top };
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} else {
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result = {};
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}
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if (pt.x >= srcFrameRect.right) {
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result.x += hostRect.right - hostRect.left + pt.x - srcFrameRect.right;
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} else if (pt.x < srcFrameRect.left) {
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result.x += pt.x - srcFrameRect.left;
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} else {
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double pos = double(pt.x - srcFrameRect.left) / (srcFrameRect.right - srcFrameRect.left - 1);
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result.x += std::lround(pos * (virtualOutputRect.right - virtualOutputRect.left - 1)) + virtualOutputRect.left;
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}
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if (pt.y >= srcFrameRect.bottom) {
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result.y += hostRect.bottom - hostRect.top + pt.y - srcFrameRect.bottom;
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} else if (pt.y < srcFrameRect.top) {
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result.y += pt.y - srcFrameRect.top;
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} else {
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double pos = double(pt.y - srcFrameRect.top) / (srcFrameRect.bottom - srcFrameRect.top - 1);
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result.y += std::lround(pos * (virtualOutputRect.bottom - virtualOutputRect.top - 1)) + virtualOutputRect.top;
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}
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return result;
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}
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// 将缩放后的光标位置映射到源窗口
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static POINT HostToSrc(POINT pt) {
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const RECT& srcFrameRect = App::Get().GetFrameSource().GetSrcFrameRect();
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const RECT& hostRect = App::Get().GetHostWndRect();
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const RECT& virtualOutputRect = App::Get().GetRenderer().GetVirtualOutputRect();
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RECT outputRect = App::Get().GetRenderer().GetOutputRect();
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const SIZE srcFrameSize = Utils::GetSizeOfRect(srcFrameRect);
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const SIZE virtualOutputSize = Utils::GetSizeOfRect(virtualOutputRect);
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const SIZE outputSize = Utils::GetSizeOfRect(outputRect);
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pt.x -= hostRect.left;
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pt.y -= hostRect.top;
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POINT result = { srcFrameRect.left, srcFrameRect.top };
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if (pt.x >= outputRect.right) {
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result.x += srcFrameSize.cx + pt.x - outputRect.right;
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} else if (pt.x < outputRect.left) {
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result.x += pt.x - outputRect.left;
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} else {
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double pos = double(pt.x - virtualOutputRect.left) / (virtualOutputSize.cx - 1);
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result.x += std::lround(pos * (srcFrameSize.cx - 1));
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}
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if (pt.y >= outputRect.bottom) {
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result.y += srcFrameSize.cx + pt.y - outputRect.bottom;
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} else if (pt.y < outputRect.top) {
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result.y += pt.y - outputRect.top;
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} else {
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double pos = double(pt.y - virtualOutputRect.top) / (virtualOutputSize.cy - 1);
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result.y += std::lround(pos * (srcFrameSize.cy - 1));
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}
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return result;
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}
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CursorManager::~CursorManager() {
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if (_curClips != RECT{}) {
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ClipCursor(nullptr);
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}
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if (_isUnderCapture) {
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POINT pt{};
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if (!::GetCursorPos(&pt)) {
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Logger::Get().Win32Error("GetCursorPos 失败");
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}
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_StopCapture(pt, true);
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}
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Logger::Get().Info("CursorDrawer 已析构");
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}
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static std::optional<LRESULT> HostWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
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if (App::Get().GetConfig().Is3DMode() && App::Get().GetRenderer().IsUIVisiable()) {
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return std::nullopt;
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}
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if (message == WM_LBUTTONDOWN || message == WM_RBUTTONDOWN) {
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// 主窗口会在非常特定的情况下收到光标消息：
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// 1. 未处于捕获状态
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// 2. 缩放后的位置未被遮挡而缩放前的位置被遮挡
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// 或用户操作 UI 时
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HWND hwndSrc = App::Get().GetHwndSrc();
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HWND hwndForground = GetForegroundWindow();
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if (hwndForground != hwndSrc) {
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if (!SetForegroundWindow(hwndSrc)) {
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// 设置前台窗口失败，可能是因为前台窗口是开始菜单
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if (Utils::IsStartMenu(hwndForground)) {
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// 限制触发频率
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static std::chrono::steady_clock::time_point prevTimePoint{};
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auto now = std::chrono::steady_clock::now();
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if (std::chrono::duration_cast<std::chrono::milliseconds>(now - prevTimePoint).count() >= 1000) {
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prevTimePoint = now;
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// 模拟按键关闭开始菜单
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INPUT inputs[4]{};
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inputs[0].type = INPUT_KEYBOARD;
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inputs[0].ki.wVk = VK_LWIN;
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inputs[1].type = INPUT_KEYBOARD;
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inputs[1].ki.wVk = VK_LWIN;
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inputs[1].ki.dwFlags = KEYEVENTF_KEYUP;
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SendInput((UINT)std::size(inputs), inputs, sizeof(INPUT));
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// 等待系统处理
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Sleep(1);
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}
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SetForegroundWindow(hwndSrc);
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}
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}
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return 0;
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}
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if (!App::Get().GetConfig().IsBreakpointMode()) {
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SetWindowPos(App::Get().GetHwndHost(), HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOREDRAW);
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}
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}
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return std::nullopt;
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}
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bool CursorManager::Initialize() {
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App::Get().RegisterWndProcHandler(HostWndProc);
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if (App::Get().GetConfig().Is3DMode()) {
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POINT cursorPos;
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::GetCursorPos(&cursorPos);
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_StartCapture(cursorPos);
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}
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Logger::Get().Info("CursorManager 初始化完成");
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return true;
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}
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// 检测光标在哪个窗口上
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// 此实现存在缺陷，包括被禁用窗口、透明窗口、UWP窗口的处理以及可能会有光标闪烁的问题
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// 当实现窗口化时，此函数需要重写
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// 请帮助我们改进！
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static HWND WindowFromPoint(INT_PTR style, POINT pt, bool clickThrough) {
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HWND hwndHost = App::Get().GetHwndHost();
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if (bool(style & WS_EX_TRANSPARENT) ^ !clickThrough) {
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return WindowFromPoint(pt);
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}
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if (!clickThrough) {
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return ChildWindowFromPointEx(GetDesktopWindow(), pt, CWP_SKIPDISABLED | CWP_SKIPINVISIBLE);
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}
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SetWindowLongPtr(hwndHost, GWL_EXSTYLE,
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clickThrough ? (style | WS_EX_TRANSPARENT) : (style & ~WS_EX_TRANSPARENT));
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HWND hwndCur = WindowFromPoint(pt);
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SetWindowLongPtr(hwndHost, GWL_EXSTYLE, style);
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return hwndCur;
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}
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void CursorManager::OnBeginFrame() {
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_UpdateCursorClip();
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if (App::Get().GetConfig().IsNoCursor() || !_isUnderCapture) {
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// 不绘制光标
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_curCursor = NULL;
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return;
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}
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CURSORINFO ci{};
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ci.cbSize = sizeof(ci);
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if (!::GetCursorInfo(&ci)) {
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Logger::Get().Win32Error("GetCursorInfo 失败");
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return;
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}
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if (!ci.hCursor || ci.flags != CURSOR_SHOWING) {
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_curCursor = NULL;
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return;
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}
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if (!_ResolveCursor(ci.hCursor, false)) {
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Logger::Get().Error("解析光标失败");
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_curCursor = NULL;
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return;
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}
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_curCursorPos = SrcToHost(ci.ptScreenPos, false);
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_curCursor = ci.hCursor;
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}
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bool CursorManager::GetCursorTexture(ID3D11Texture2D** texture, CursorManager::CursorType& cursorType) {
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if (_curCursorInfo->texture) {
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*texture = _curCursorInfo->texture.get();
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cursorType = _curCursorInfo->type;
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return true;
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}
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if (!_ResolveCursor(_curCursor, true)) {
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return false;
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} else {
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const char* cursorTypes[] = { "Color", "Masked Color", "Monochrome" };
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Logger::Get().Info(fmt::format("已解析光标：{}\n\t类型：{}",
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(void*)_curCursor, cursorTypes[(int)_curCursorInfo->type]));
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}
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*texture = _curCursorInfo->texture.get();
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cursorType = _curCursorInfo->type;
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return true;
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}
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void CursorManager::OnCursorCapturedOnOverlay() {
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_isCapturedOnOverlay = true;
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// 用户拖动 UI 时将光标限制在输出区域内
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const RECT& outputRect = App::Get().GetRenderer().GetOutputRect();
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const RECT& hostRect = App::Get().GetHostWndRect();
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_curClips = {
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outputRect.left + hostRect.left,
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outputRect.top + hostRect.top,
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outputRect.right + hostRect.left,
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outputRect.bottom + hostRect.top
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};
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ClipCursor(&_curClips);
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}
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void CursorManager::OnCursorReleasedOnOverlay() {
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_isCapturedOnOverlay = false;
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_UpdateCursorClip();
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}
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void CursorManager::OnCursorHoverOverlay() {
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_isOnOverlay = true;
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_UpdateCursorClip();
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}
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void CursorManager::OnCursorLeaveOverlay() {
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_isOnOverlay = false;
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_UpdateCursorClip();
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}
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void CursorManager::_StartCapture(POINT cursorPt) {
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if (_isUnderCapture) {
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return;
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}
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// 在以下情况下进入捕获状态：
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// 1. 当前未捕获
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// 2. 光标进入全屏区域
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//
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// 进入捕获状态时：
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// 1. 调整光标速度，全局隐藏光标
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// 2. 将光标移到源窗口的对应位置
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//
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// 在有黑边的情况下自动将光标调整到画面内
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// 全局隐藏光标
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if (!MagShowSystemCursor(FALSE)) {
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Logger::Get().Win32Error("MagShowSystemCursor 失败");
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}
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const RECT& srcFrameRect = App::Get().GetFrameSource().GetSrcFrameRect();
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const RECT& hostRect = App::Get().GetHostWndRect();
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const RECT& outputRect = App::Get().GetRenderer().GetOutputRect();
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SIZE srcFrameSize = Utils::GetSizeOfRect(srcFrameRect);
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SIZE outputSize = Utils::GetSizeOfRect(outputRect);
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if (App::Get().GetConfig().IsAdjustCursorSpeed()) {
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_AdjustCursorSpeed();
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}
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// 移动光标位置
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// 跳过黑边
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cursorPt.x = std::clamp(cursorPt.x, hostRect.left + outputRect.left, hostRect.left + outputRect.right - 1);
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cursorPt.y = std::clamp(cursorPt.y, hostRect.top + outputRect.top, hostRect.top + outputRect.bottom - 1);
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POINT newCursorPos = HostToSrc(cursorPt);
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SetCursorPos(newCursorPos.x, newCursorPos.y);
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_isUnderCapture = true;
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}
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void CursorManager::_StopCapture(POINT cursorPos, bool onDestroy) {
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if (!_isUnderCapture) {
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return;
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}
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if (_curClips != RECT{}) {
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_curClips = {};
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ClipCursor(nullptr);
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}
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// 在以下情况下离开捕获状态：
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// 1. 当前处于捕获状态
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// 2. 光标离开源窗口客户区
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// 3. 目标位置存在屏幕
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//
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// 离开捕获状态时
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// 1. 还原光标速度，全局显示光标
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// 2. 将光标移到全屏窗口外的对应位置
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//
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// 在有黑边的情况下自动将光标调整到全屏窗口外
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POINT newCursorPos = SrcToHost(cursorPos, true);
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if (onDestroy || MonitorFromPoint(newCursorPos, MONITOR_DEFAULTTONULL)) {
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SetCursorPos(newCursorPos.x, newCursorPos.y);
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if (App::Get().GetConfig().IsAdjustCursorSpeed()) {
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SystemParametersInfo(SPI_SETMOUSESPEED, 0, (PVOID)(intptr_t)_cursorSpeed, 0);
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}
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if (!MagShowSystemCursor(TRUE)) {
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Logger::Get().Error("MagShowSystemCursor 失败");
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}
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// 解决有时 MagShowSystemCursor(TRUE) 不会立即生效的问题
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SystemParametersInfo(SPI_SETCURSORS, 0, 0, 0);
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_isUnderCapture = false;
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} else {
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// 目标位置不存在屏幕，则将光标限制在源窗口内
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const RECT& srcFrameRect = App::Get().GetFrameSource().GetSrcFrameRect();
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SetCursorPos(
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std::clamp(cursorPos.x, srcFrameRect.left, srcFrameRect.right - 1),
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std::clamp(cursorPos.y, srcFrameRect.top, srcFrameRect.bottom - 1)
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);
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}
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}
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bool CursorManager::_ResolveCursor(HCURSOR hCursor, bool resolveTexture) {
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auto it = _cursorInfos.find(hCursor);
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if (it != _cursorInfos.end() && (!resolveTexture || (resolveTexture && _curCursorInfo->texture))) {
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_curCursorInfo = &it->second;
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return true;
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}
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ICONINFO ii{};
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if (!GetIconInfo(hCursor, &ii)) {
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Logger::Get().Win32Error("GetIconInfo 失败");
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return false;
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}
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Utils::ScopeExit se([&ii]() {
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if (ii.hbmColor) {
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DeleteBitmap(ii.hbmColor);
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}
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DeleteBitmap(ii.hbmMask);
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});
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BITMAP bmp{};
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if (!GetObject(ii.hbmMask, sizeof(bmp), &bmp)) {
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Logger::Get().Win32Error("GetObject 失败");
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return false;
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}
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_curCursorInfo = it == _cursorInfos.end() ? &_cursorInfos[hCursor] : &it->second;
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_curCursorInfo->hotSpot = { (LONG)ii.xHotspot, (LONG)ii.yHotspot };
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// 单色光标的 hbmMask 高度为实际高度的两倍
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_curCursorInfo->size = { bmp.bmWidth, ii.hbmColor ? bmp.bmHeight : bmp.bmHeight / 2 };
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if (!resolveTexture) {
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return true;
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}
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auto& dr = App::Get().GetDeviceResources();
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BITMAPINFO bi{};
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bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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bi.bmiHeader.biWidth = bmp.bmWidth;
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bi.bmiHeader.biHeight = -bmp.bmHeight;
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bi.bmiHeader.biPlanes = 1;
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bi.bmiHeader.biCompression = BI_RGB;
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bi.bmiHeader.biBitCount = 32;
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bi.bmiHeader.biSizeImage = bmp.bmWidth * bmp.bmHeight * 4;
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if (ii.hbmColor == NULL) {
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// 单色光标
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_curCursorInfo->type = CursorType::Monochrome;
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std::vector<BYTE> pixels(bi.bmiHeader.biSizeImage);
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HDC hdc = GetDC(NULL);
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if (GetDIBits(hdc, ii.hbmMask, 0, bmp.bmHeight, &pixels[0], &bi, DIB_RGB_COLORS) != bmp.bmHeight) {
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Logger::Get().Win32Error("GetDIBits 失败");
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ReleaseDC(NULL, hdc);
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return false;
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}
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ReleaseDC(NULL, hdc);
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// 红色通道是 AND 掩码，绿色通道是 XOR 掩码
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// 这里将下半部分的 XOR 掩码复制到上半部分的绿色通道中
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const int halfSize = bi.bmiHeader.biSizeImage / 8;
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BYTE* upPtr = &pixels[1];
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BYTE* downPtr = &pixels[static_cast<size_t>(halfSize) * 4];
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for (int i = 0; i < halfSize; ++i) {
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*upPtr = *downPtr;
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upPtr += 4;
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downPtr += 4;
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}
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D3D11_SUBRESOURCE_DATA initData{};
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initData.pSysMem = &pixels[0];
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initData.SysMemPitch = bmp.bmWidth * 4;
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_curCursorInfo->texture = dr.CreateTexture2D(
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DXGI_FORMAT_R8G8B8A8_UNORM,
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bmp.bmWidth,
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bmp.bmHeight / 2,
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D3D11_BIND_SHADER_RESOURCE,
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D3D11_USAGE_IMMUTABLE,
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0,
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&initData
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);
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if (!_curCursorInfo->texture) {
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Logger::Get().Error("创建纹理失败");
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return false;
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}
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return true;
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}
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std::vector<BYTE> pixels(bi.bmiHeader.biSizeImage);
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HDC hdc = GetDC(NULL);
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if (GetDIBits(hdc, ii.hbmColor, 0, bmp.bmHeight, &pixels[0], &bi, DIB_RGB_COLORS) != bmp.bmHeight) {
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Logger::Get().Win32Error("GetDIBits 失败");
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ReleaseDC(NULL, hdc);
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return false;
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}
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ReleaseDC(NULL, hdc);
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// 若颜色掩码有 A 通道，则是彩色光标，否则是彩色掩码光标
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bool hasAlpha = false;
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||
for (UINT i = 3; i < bi.bmiHeader.biSizeImage; i += 4) {
|
||
if (pixels[i] != 0) {
|
||
hasAlpha = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (hasAlpha) {
|
||
// 彩色光标
|
||
_curCursorInfo->type = CursorType::Color;
|
||
|
||
for (size_t i = 0; i < bi.bmiHeader.biSizeImage; i += 4) {
|
||
// 预乘 Alpha 通道
|
||
double alpha = pixels[i + 3] / 255.0f;
|
||
|
||
BYTE b = (BYTE)std::lround(pixels[i] * alpha);
|
||
pixels[i] = (BYTE)std::lround(pixels[i + 2] * alpha);
|
||
pixels[i + 1] = (BYTE)std::lround(pixels[i + 1] * alpha);
|
||
pixels[i + 2] = b;
|
||
|
||
pixels[i + 3] = 255 - pixels[i + 3];
|
||
}
|
||
} else {
|
||
// 彩色掩码光标
|
||
_curCursorInfo->type = CursorType::MaskedColor;
|
||
|
||
std::vector<BYTE> maskPixels(bi.bmiHeader.biSizeImage);
|
||
HDC hdc = GetDC(NULL);
|
||
if (GetDIBits(hdc, ii.hbmMask, 0, bmp.bmHeight, &maskPixels[0], &bi, DIB_RGB_COLORS) != bmp.bmHeight) {
|
||
Logger::Get().Win32Error("GetDIBits 失败");
|
||
ReleaseDC(NULL, hdc);
|
||
return false;
|
||
}
|
||
ReleaseDC(NULL, hdc);
|
||
|
||
// 将 XOR 掩码复制到透明通道中
|
||
for (size_t i = 0; i < bi.bmiHeader.biSizeImage; i += 4) {
|
||
std::swap(pixels[i], pixels[i + 2]);
|
||
pixels[i + 3] = maskPixels[i];
|
||
}
|
||
}
|
||
|
||
D3D11_SUBRESOURCE_DATA initData{};
|
||
initData.pSysMem = &pixels[0];
|
||
initData.SysMemPitch = bmp.bmWidth * 4;
|
||
|
||
_curCursorInfo->texture = dr.CreateTexture2D(
|
||
DXGI_FORMAT_R8G8B8A8_UNORM,
|
||
bmp.bmWidth,
|
||
bmp.bmHeight,
|
||
D3D11_BIND_SHADER_RESOURCE,
|
||
D3D11_USAGE_IMMUTABLE,
|
||
0,
|
||
&initData
|
||
);
|
||
if (!_curCursorInfo->texture) {
|
||
Logger::Get().Error("创建纹理失败");
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
void CursorManager::_AdjustCursorSpeed() {
|
||
if (!SystemParametersInfo(SPI_GETMOUSESPEED, 0, &_cursorSpeed, 0)) {
|
||
Logger::Get().Win32Error("获取光标移速失败");
|
||
return;
|
||
}
|
||
|
||
// 鼠标加速默认打开
|
||
bool isMouseAccelerationOn = true;
|
||
{
|
||
std::array<INT, 3> values{};
|
||
if (SystemParametersInfo(SPI_GETMOUSE, 0, values.data(), 0)) {
|
||
isMouseAccelerationOn = values[2];
|
||
} else {
|
||
Logger::Get().Win32Error("检索鼠标加速失败");
|
||
}
|
||
}
|
||
|
||
SIZE srcFrameSize = Utils::GetSizeOfRect(App::Get().GetFrameSource().GetSrcFrameRect());
|
||
SIZE virtualOutputSize = Utils::GetSizeOfRect(App::Get().GetRenderer().GetVirtualOutputRect());
|
||
double scale = ((double)virtualOutputSize.cx / srcFrameSize.cx + (double)virtualOutputSize.cy / srcFrameSize.cy) / 2;
|
||
|
||
INT newSpeed = 0;
|
||
|
||
// “提高指针精确度”（鼠标加速）打开时光标移速的调整为线性，否则为非线性
|
||
// 参见 https://liquipedia.net/counterstrike/Mouse_Settings#Windows_Sensitivity
|
||
if (isMouseAccelerationOn) {
|
||
newSpeed = std::clamp((INT)lround(_cursorSpeed / scale), 1, 20);
|
||
} else {
|
||
static constexpr std::array<double, 20> SENSITIVITIES = {
|
||
0.03125, 0.0625, 0.125, 0.25, 0.375, 0.5, 0.625, 0.75, 0.875,
|
||
1.0, 1.25, 1.5, 1.75, 2, 2.25, 2.5, 2.75, 3, 3.25, 3.5
|
||
};
|
||
|
||
_cursorSpeed = std::clamp(_cursorSpeed, 1, 20);
|
||
double newSensitivity = SENSITIVITIES[static_cast<size_t>(_cursorSpeed) - 1] / scale;
|
||
|
||
auto it = std::lower_bound(SENSITIVITIES.begin(), SENSITIVITIES.end(), newSensitivity - 1e-6);
|
||
newSpeed = INT(it - SENSITIVITIES.begin()) + 1;
|
||
|
||
if (it != SENSITIVITIES.begin() && it != SENSITIVITIES.end()) {
|
||
// 找到两侧最接近的数值
|
||
if (std::abs(*it - newSensitivity) > std::abs(*(it - 1) - newSensitivity)) {
|
||
--newSpeed;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!SystemParametersInfo(SPI_SETMOUSESPEED, 0, (PVOID)(intptr_t)newSpeed, 0)) {
|
||
Logger::Get().Win32Error("设置光标移速失败");
|
||
}
|
||
}
|
||
|
||
void CursorManager::_UpdateCursorClip() {
|
||
// 优先级：
|
||
// 1. 断点模式：不限制，捕获/取消捕获，支持 UI
|
||
// 2. 在 3D 游戏中限制光标：每帧都限制一次，不退出捕获，因此无法使用 UI，不支持多屏幕
|
||
// 3. 常规：根据多屏幕限制光标，捕获/取消捕获，支持 UI 和多屏幕
|
||
|
||
const RECT& srcFrameRect = App::Get().GetFrameSource().GetSrcFrameRect();
|
||
|
||
if (!App::Get().GetConfig().IsBreakpointMode() && App::Get().GetConfig().Is3DMode()) {
|
||
// 开启“在 3D 游戏中限制光标”则每帧都限制一次光标
|
||
_curClips = srcFrameRect;
|
||
ClipCursor(&srcFrameRect);
|
||
return;
|
||
}
|
||
|
||
if (_isCapturedOnOverlay) {
|
||
// 已在 OnCursorCapturedOnOverlay 中限制光标
|
||
return;
|
||
}
|
||
|
||
const HWND hwndHost = App::Get().GetHwndHost();
|
||
const HWND hwndSrc = App::Get().GetHwndSrc();
|
||
const RECT& hostRect = App::Get().GetHostWndRect();
|
||
|
||
const RECT& outputRect = App::Get().GetRenderer().GetOutputRect();
|
||
const RECT& virtualOutputRect = App::Get().GetRenderer().GetVirtualOutputRect();
|
||
|
||
const SIZE outputSize = Utils::GetSizeOfRect(outputRect);
|
||
const SIZE srcFrameSize = Utils::GetSizeOfRect(srcFrameRect);
|
||
const SIZE virtualOutputSize = Utils::GetSizeOfRect(virtualOutputRect);
|
||
|
||
INT_PTR style = GetWindowLongPtr(hwndHost, GWL_EXSTYLE);
|
||
|
||
POINT cursorPos;
|
||
if (!::GetCursorPos(&cursorPos)) {
|
||
Logger::Get().Win32Error("GetCursorPos 失败");
|
||
return;
|
||
}
|
||
|
||
if (_isUnderCapture) {
|
||
///////////////////////////////////////////////////////////
|
||
//
|
||
// 处于捕获状态
|
||
// --------------------------------------------------------
|
||
// | 虚拟位置被遮挡 | 虚拟位置未被遮挡
|
||
// --------------------------------------------------------
|
||
// 实际位置被遮挡 | 退出捕获 | 退出捕获，主窗口不透明
|
||
// --------------------------------------------------------
|
||
// 实际位置未被遮挡 | 退出捕获 | 无操作
|
||
// --------------------------------------------------------
|
||
//
|
||
///////////////////////////////////////////////////////////
|
||
|
||
HWND hwndCur = WindowFromPoint(style, SrcToHost(cursorPos, true), false);
|
||
|
||
if (hwndCur != hwndHost) {
|
||
// 主窗口被遮挡
|
||
if (style | WS_EX_TRANSPARENT) {
|
||
SetWindowLongPtr(hwndHost, GWL_EXSTYLE, style & ~WS_EX_TRANSPARENT);
|
||
}
|
||
|
||
_StopCapture(cursorPos);
|
||
} else {
|
||
// 主窗口未被遮挡
|
||
bool stopCapture = _isOnOverlay;
|
||
|
||
if (!stopCapture) {
|
||
// 判断源窗口是否被遮挡
|
||
hwndCur = WindowFromPoint(style, cursorPos, true);
|
||
stopCapture = hwndCur != hwndSrc && (!IsChild(hwndSrc, hwndCur) || !((GetWindowStyle(hwndCur) & WS_CHILD)));
|
||
}
|
||
|
||
if (stopCapture) {
|
||
if (style | WS_EX_TRANSPARENT) {
|
||
SetWindowLongPtr(hwndHost, GWL_EXSTYLE, style & ~WS_EX_TRANSPARENT);
|
||
}
|
||
|
||
_StopCapture(cursorPos);
|
||
} else {
|
||
if (!(style & WS_EX_TRANSPARENT)) {
|
||
SetWindowLongPtr(hwndHost, GWL_EXSTYLE, style | WS_EX_TRANSPARENT);
|
||
}
|
||
}
|
||
}
|
||
} else {
|
||
/////////////////////////////////////////////////////////
|
||
//
|
||
// 未处于捕获状态
|
||
// -----------------------------------------------------
|
||
// | 虚拟位置被遮挡 | 虚拟位置未被遮挡
|
||
// ------------------------------------------------------
|
||
// 实际位置被遮挡 | 无操作 | 主窗口不透明
|
||
// ------------------------------------------------------
|
||
// 实际位置未被遮挡 | 无操作 | 开始捕获，主窗口透明
|
||
// ------------------------------------------------------
|
||
//
|
||
/////////////////////////////////////////////////////////
|
||
|
||
HWND hwndCur = WindowFromPoint(style, cursorPos, false);
|
||
|
||
if (hwndCur == hwndHost) {
|
||
// 主窗口未被遮挡
|
||
POINT newCursorPos = HostToSrc(cursorPos);
|
||
|
||
if (!PtInRect(&srcFrameRect, newCursorPos)) {
|
||
// 跳过黑边
|
||
if (_isOnOverlay) {
|
||
// 从内部移到外部
|
||
// 此时有 UI 贴边
|
||
if (newCursorPos.x >= srcFrameRect.right) {
|
||
cursorPos.x += hostRect.right - hostRect.left - outputRect.right;
|
||
} else if (newCursorPos.x < srcFrameRect.left) {
|
||
cursorPos.x -= outputRect.left;
|
||
}
|
||
|
||
if (newCursorPos.y >= srcFrameRect.bottom) {
|
||
cursorPos.y += hostRect.bottom - hostRect.top - outputRect.bottom;
|
||
} else if (newCursorPos.y < srcFrameRect.top) {
|
||
cursorPos.y -= outputRect.top;
|
||
}
|
||
|
||
if (MonitorFromPoint(cursorPos, MONITOR_DEFAULTTONULL)) {
|
||
SetCursorPos(cursorPos.x, cursorPos.y);
|
||
} else {
|
||
// 目标位置不存在屏幕，则将光标限制在输出区域内
|
||
const RECT& outputRect = App::Get().GetRenderer().GetOutputRect();
|
||
SetCursorPos(
|
||
std::clamp(cursorPos.x, hostRect.left + outputRect.left, hostRect.left + outputRect.right - 1),
|
||
std::clamp(cursorPos.y, hostRect.top + outputRect.top, hostRect.top + outputRect.bottom - 1)
|
||
);
|
||
}
|
||
} else {
|
||
// 从外部移到内部
|
||
|
||
POINT clampedPos = {
|
||
std::clamp(cursorPos.x, hostRect.left + outputRect.left, hostRect.left + outputRect.right - 1),
|
||
std::clamp(cursorPos.y, hostRect.top + outputRect.top, hostRect.top + outputRect.bottom - 1)
|
||
};
|
||
|
||
if (WindowFromPoint(style, clampedPos, false) == hwndHost) {
|
||
if (!(style & WS_EX_TRANSPARENT)) {
|
||
SetWindowLongPtr(hwndHost, GWL_EXSTYLE, style | WS_EX_TRANSPARENT);
|
||
}
|
||
|
||
_StartCapture(cursorPos);
|
||
} else {
|
||
// 要跳跃的位置被遮挡
|
||
if (style | WS_EX_TRANSPARENT) {
|
||
SetWindowLongPtr(hwndHost, GWL_EXSTYLE, style & ~WS_EX_TRANSPARENT);
|
||
}
|
||
}
|
||
}
|
||
} else {
|
||
bool startCapture = !_isOnOverlay;
|
||
|
||
if (startCapture) {
|
||
// 判断源窗口是否被遮挡
|
||
hwndCur = WindowFromPoint(style, newCursorPos, true);
|
||
startCapture = hwndCur == hwndSrc || ((IsChild(hwndSrc, hwndCur) && (GetWindowStyle(hwndCur) & WS_CHILD)));
|
||
}
|
||
|
||
if (startCapture) {
|
||
if (!(style & WS_EX_TRANSPARENT)) {
|
||
SetWindowLongPtr(hwndHost, GWL_EXSTYLE, style | WS_EX_TRANSPARENT);
|
||
}
|
||
|
||
_StartCapture(cursorPos);
|
||
} else {
|
||
if (style | WS_EX_TRANSPARENT) {
|
||
SetWindowLongPtr(hwndHost, GWL_EXSTYLE, style & ~WS_EX_TRANSPARENT);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (App::Get().GetConfig().IsBreakpointMode()) {
|
||
return;
|
||
}
|
||
|
||
if (!_isOnOverlay && !_isUnderCapture) {
|
||
return;
|
||
}
|
||
|
||
// 根据当前光标位置的四个方向有无屏幕来确定应该在哪些方向限制光标，但这无法
|
||
// 处理屏幕之间存在间隙的情况。解决办法是 _StopCapture 只在目标位置存在屏幕时才取消捕获，
|
||
// 当光标试图移动到间隙中时将被挡住。如果光标的速度足以跨越间隙，则它依然可以在屏幕间移动。
|
||
::GetCursorPos(&cursorPos);
|
||
POINT hostPos = _isOnOverlay ? cursorPos : SrcToHost(cursorPos, true);
|
||
|
||
RECT clips{ LONG_MIN, LONG_MIN, LONG_MAX, LONG_MAX };
|
||
|
||
// left
|
||
RECT rect{ LONG_MIN, hostPos.y, hostRect.left, hostPos.y + 1 };
|
||
if (!MonitorFromRect(&rect, MONITOR_DEFAULTTONULL)) {
|
||
clips.left = _isOnOverlay ? outputRect.left + hostRect.left : srcFrameRect.left;
|
||
}
|
||
|
||
// top
|
||
rect = { hostPos.x, LONG_MIN, hostPos.x + 1,hostRect.top };
|
||
if (!MonitorFromRect(&rect, MONITOR_DEFAULTTONULL)) {
|
||
clips.top = _isOnOverlay ? outputRect.top + hostRect.top : srcFrameRect.top;
|
||
}
|
||
|
||
// right
|
||
rect = { hostRect.right, hostPos.y, LONG_MAX, hostPos.y + 1 };
|
||
if (!MonitorFromRect(&rect, MONITOR_DEFAULTTONULL)) {
|
||
clips.right = _isOnOverlay ? outputRect.right + hostRect.left : srcFrameRect.right;
|
||
}
|
||
|
||
// bottom
|
||
rect = { hostPos.x, hostRect.bottom, hostPos.x + 1, LONG_MAX };
|
||
if (!MonitorFromRect(&rect, MONITOR_DEFAULTTONULL)) {
|
||
clips.bottom = _isOnOverlay ? outputRect.bottom + hostRect.top : srcFrameRect.bottom;
|
||
}
|
||
|
||
if (clips != _curClips) {
|
||
_curClips = clips;
|
||
ClipCursor(&clips);
|
||
}
|
||
}
|