PowerToys/src/modules/fancyzones/lib/util.h
2020-09-03 17:50:49 +03:00

218 lines
7.0 KiB
C++

#pragma once
#include "gdiplus.h"
#include <common/string_utils.h>
namespace FancyZonesUtils
{
// Window properties relevant to FancyZones
struct FancyZonesWindowInfo
{
// True if from the styles the window looks like a standard window
bool standardWindow = false;
// True if the window is a top-level window that does not have a visible owner
bool noVisibleOwner = false;
// Path to the executable owning the window
std::wstring processPath;
};
struct Rect
{
Rect() {}
Rect(RECT rect) :
m_rect(rect)
{
}
Rect(RECT rect, UINT dpi) :
m_rect(rect)
{
m_rect.right = m_rect.left + MulDiv(m_rect.right - m_rect.left, dpi, 96);
m_rect.bottom = m_rect.top + MulDiv(m_rect.bottom - m_rect.top, dpi, 96);
}
int x() const { return m_rect.left; }
int y() const { return m_rect.top; }
int width() const { return m_rect.right - m_rect.left; }
int height() const { return m_rect.bottom - m_rect.top; }
int left() const { return m_rect.left; }
int top() const { return m_rect.top; }
int right() const { return m_rect.right; }
int bottom() const { return m_rect.bottom; }
int aspectRatio() const { return MulDiv(m_rect.bottom - m_rect.top, 100, m_rect.right - m_rect.left); }
private:
RECT m_rect{};
};
inline void MakeWindowTransparent(HWND window)
{
int const pos = -GetSystemMetrics(SM_CXVIRTUALSCREEN) - 8;
if (wil::unique_hrgn hrgn{ CreateRectRgn(pos, 0, (pos + 1), 1) })
{
DWM_BLURBEHIND bh = { DWM_BB_ENABLE | DWM_BB_BLURREGION, TRUE, hrgn.get(), FALSE };
DwmEnableBlurBehindWindow(window, &bh);
}
}
inline void InitRGB(_Out_ RGBQUAD* quad, BYTE alpha, COLORREF color)
{
ZeroMemory(quad, sizeof(*quad));
quad->rgbReserved = alpha;
quad->rgbRed = GetRValue(color) * alpha / 255;
quad->rgbGreen = GetGValue(color) * alpha / 255;
quad->rgbBlue = GetBValue(color) * alpha / 255;
}
inline void FillRectARGB(wil::unique_hdc& hdc, RECT const* prcFill, BYTE alpha, COLORREF color, bool blendAlpha)
{
BITMAPINFO bi;
ZeroMemory(&bi, sizeof(bi));
bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bi.bmiHeader.biWidth = 1;
bi.bmiHeader.biHeight = 1;
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 32;
bi.bmiHeader.biCompression = BI_RGB;
RECT fillRect;
CopyRect(&fillRect, prcFill);
RGBQUAD bitmapBits;
InitRGB(&bitmapBits, alpha, color);
StretchDIBits(
hdc.get(),
fillRect.left,
fillRect.top,
fillRect.right - fillRect.left,
fillRect.bottom - fillRect.top,
0,
0,
1,
1,
&bitmapBits,
&bi,
DIB_RGB_COLORS,
SRCCOPY);
}
inline COLORREF HexToRGB(std::wstring_view hex, const COLORREF fallbackColor = RGB(255, 255, 255))
{
hex = left_trim<wchar_t>(trim<wchar_t>(hex), L"#");
try
{
const long long tmp = std::stoll(hex.data(), nullptr, 16);
const BYTE nR = static_cast<BYTE>((tmp & 0xFF0000) >> 16);
const BYTE nG = static_cast<BYTE>((tmp & 0xFF00) >> 8);
const BYTE nB = static_cast<BYTE>((tmp & 0xFF));
return RGB(nR, nG, nB);
}
catch (const std::exception&)
{
return fallbackColor;
}
}
inline void ParseDeviceId(PCWSTR deviceId, PWSTR parsedId, size_t size)
{
// We're interested in the unique part between the first and last #'s
// Example input: \\?\DISPLAY#DELA026#5&10a58c63&0&UID16777488#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}
// Example output: DELA026#5&10a58c63&0&UID16777488
const std::wstring defaultDeviceId = L"FallbackDevice";
if (!deviceId)
{
StringCchCopy(parsedId, size, defaultDeviceId.c_str());
return;
}
wchar_t buffer[256];
StringCchCopy(buffer, 256, deviceId);
PWSTR pszStart = wcschr(buffer, L'#');
PWSTR pszEnd = wcsrchr(buffer, L'#');
if (pszStart && pszEnd && (pszStart != pszEnd))
{
pszStart++; // skip past the first #
*pszEnd = '\0';
StringCchCopy(parsedId, size, pszStart);
}
else
{
StringCchCopy(parsedId, size, defaultDeviceId.c_str());
}
}
inline BYTE OpacitySettingToAlpha(int opacity)
{
return static_cast<BYTE>(opacity * 2.55);
}
template<RECT MONITORINFO::*member>
std::vector<std::pair<HMONITOR, RECT>> GetAllMonitorRects()
{
using result_t = std::vector<std::pair<HMONITOR, RECT>>;
result_t result;
auto enumMonitors = [](HMONITOR monitor, HDC hdc, LPRECT pRect, LPARAM param) -> BOOL {
MONITORINFOEX mi;
mi.cbSize = sizeof(mi);
result_t& result = *reinterpret_cast<result_t*>(param);
if (GetMonitorInfo(monitor, &mi))
{
result.push_back({ monitor, mi.*member });
}
return TRUE;
};
EnumDisplayMonitors(NULL, NULL, enumMonitors, reinterpret_cast<LPARAM>(&result));
return result;
}
template<RECT MONITORINFO::*member>
RECT GetAllMonitorsCombinedRect()
{
auto allMonitors = GetAllMonitorRects<member>();
bool empty = true;
RECT result{ 0, 0, 0, 0 };
for (auto& [monitor, rect] : allMonitors)
{
if (empty)
{
empty = false;
result = rect;
}
else
{
result.left = min(result.left, rect.left);
result.top = min(result.top, rect.top);
result.right = max(result.right, rect.right);
result.bottom = max(result.bottom, rect.bottom);
}
}
return result;
}
UINT GetDpiForMonitor(HMONITOR monitor) noexcept;
void OrderMonitors(std::vector<std::pair<HMONITOR, RECT>>& monitorInfo);
void SizeWindowToRect(HWND window, RECT rect) noexcept;
FancyZonesWindowInfo GetFancyZonesWindowInfo(HWND window);
bool IsCandidateForLastKnownZone(HWND window, const std::vector<std::wstring>& excludedApps) noexcept;
bool IsCandidateForZoning(HWND window, const std::vector<std::wstring>& excludedApps) noexcept;
bool IsWindowMaximized(HWND window) noexcept;
void SaveWindowSizeAndOrigin(HWND window) noexcept;
void RestoreWindowSize(HWND window) noexcept;
void RestoreWindowOrigin(HWND window) noexcept;
bool IsValidGuid(const std::wstring& str);
bool IsValidDeviceId(const std::wstring& str);
RECT PrepareRectForCycling(RECT windowRect, RECT zoneWindowRect, DWORD vkCode) noexcept;
size_t ChooseNextZoneByPosition(DWORD vkCode, RECT windowRect, const std::vector<RECT>& zoneRects) noexcept;
}