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[FancyZones] Fix taskbar size issues (#9856)

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* Fix taskbar size issues

* Fix issue with DPI unaware apps
This commit is contained in:
Ivan Stošić
2021-03-11 12:31:29 +01:00
committed by GitHub
parent 488ee19f93
commit acb8595a50
3 changed files with 86 additions and 59 deletions
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59
src/modules/fancyzones/lib/Zone.cpp
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@@ -21,46 +21,6 @@ namespace
rect.bottom >= ZoneConstants::MAX_NEGATIVE_SPACING &&
width >= 0 && height >= 0;
}
BOOL CALLBACK saveDisplayToVector(HMONITOR monitor, HDC hdc, LPRECT rect, LPARAM data)
{
reinterpret_cast<std::vector<HMONITOR>*>(data)->emplace_back(monitor);
return true;
}
bool allMonitorsHaveSameDpiScaling()
{
std::vector<HMONITOR> monitors;
EnumDisplayMonitors(NULL, NULL, saveDisplayToVector, reinterpret_cast<LPARAM>(&monitors));
if (monitors.size() < 2)
{
return true;
}
UINT firstMonitorDpiX;
UINT firstMonitorDpiY;
if (S_OK != GetDpiForMonitor(monitors[0], MDT_EFFECTIVE_DPI, &firstMonitorDpiX, &firstMonitorDpiY))
{
return false;
}
for (int i = 1; i < monitors.size(); i++)
{
UINT iteratedMonitorDpiX;
UINT iteratedMonitorDpiY;
if (S_OK != GetDpiForMonitor(monitors[i], MDT_EFFECTIVE_DPI, &iteratedMonitorDpiX, &iteratedMonitorDpiY) ||
iteratedMonitorDpiX != firstMonitorDpiX)
{
return false;
}
}
return true;
}
}
struct Zone : winrt::implements<Zone, IZone>
@@ -92,9 +52,6 @@ RECT Zone::ComputeActualZoneRect(HWND window, HWND zoneWindow) const noexcept
RECT frameRect{};
const auto level = DPIAware::GetAwarenessLevel(GetWindowDpiAwarenessContext(window));
const bool accountForUnawareness = level < DPIAware::PER_MONITOR_AWARE;
if (SUCCEEDED(DwmGetWindowAttribute(window, DWMWA_EXTENDED_FRAME_BOUNDS, &frameRect, sizeof(frameRect))))
{
LONG leftMargin = frameRect.left - windowRect.left;
@@ -108,22 +65,6 @@ RECT Zone::ComputeActualZoneRect(HWND window, HWND zoneWindow) const noexcept
// Map to screen coords
MapWindowRect(zoneWindow, nullptr, &newWindowRect);
MONITORINFO mi{ sizeof(mi) };
if (GetMonitorInfoW(MonitorFromWindow(zoneWindow, MONITOR_DEFAULTTONEAREST), &mi))
{
const auto taskbar_left_size = std::abs(mi.rcMonitor.left - mi.rcWork.left);
const auto taskbar_top_size = std::abs(mi.rcMonitor.top - mi.rcWork.top);
OffsetRect(&newWindowRect, -taskbar_left_size, -taskbar_top_size);
if (accountForUnawareness && !allMonitorsHaveSameDpiScaling())
{
newWindowRect.left = max(mi.rcMonitor.left, newWindowRect.left);
newWindowRect.right = min(mi.rcMonitor.right - taskbar_left_size, newWindowRect.right);
newWindowRect.top = max(mi.rcMonitor.top, newWindowRect.top);
newWindowRect.bottom = min(mi.rcMonitor.bottom - taskbar_top_size, newWindowRect.bottom);
}
}
if ((::GetWindowLong(window, GWL_STYLE) & WS_SIZEBOX) == 0)
{
newWindowRect.right = newWindowRect.left + (windowRect.right - windowRect.left);