Files
PowerToys/src/modules/fancyzones/lib/Zone.cpp
Ivan Stošić acb8595a50 [FancyZones] Fix taskbar size issues (#9856)
* Fix taskbar size issues

* Fix issue with DPI unaware apps
2021-03-11 12:31:29 +01:00

88 lines
2.4 KiB
C++

#include "pch.h"
#include <Shellscalingapi.h>
#include <common/display/dpi_aware.h>
#include <common/display/monitors.h>
#include "Zone.h"
#include "Settings.h"
#include "util.h"
namespace
{
bool ValidateZoneRect(const RECT& rect)
{
int width = rect.right - rect.left;
int height = rect.bottom - rect.top;
return rect.left >= ZoneConstants::MAX_NEGATIVE_SPACING &&
rect.right >= ZoneConstants::MAX_NEGATIVE_SPACING &&
rect.top >= ZoneConstants::MAX_NEGATIVE_SPACING &&
rect.bottom >= ZoneConstants::MAX_NEGATIVE_SPACING &&
width >= 0 && height >= 0;
}
}
struct Zone : winrt::implements<Zone, IZone>
{
public:
Zone(RECT zoneRect, const size_t zoneId) :
m_zoneRect(zoneRect),
m_id(zoneId)
{
}
IFACEMETHODIMP_(RECT) GetZoneRect() const noexcept { return m_zoneRect; }
IFACEMETHODIMP_(size_t) Id() const noexcept { return m_id; }
IFACEMETHODIMP_(RECT) ComputeActualZoneRect(HWND window, HWND zoneWindow) const noexcept;
private:
RECT m_zoneRect{};
const size_t m_id{};
std::map<HWND, RECT> m_windows{};
};
RECT Zone::ComputeActualZoneRect(HWND window, HWND zoneWindow) const noexcept
{
// Take care of 1px border
RECT newWindowRect = m_zoneRect;
RECT windowRect{};
::GetWindowRect(window, &windowRect);
RECT frameRect{};
if (SUCCEEDED(DwmGetWindowAttribute(window, DWMWA_EXTENDED_FRAME_BOUNDS, &frameRect, sizeof(frameRect))))
{
LONG leftMargin = frameRect.left - windowRect.left;
LONG rightMargin = frameRect.right - windowRect.right;
LONG bottomMargin = frameRect.bottom - windowRect.bottom;
newWindowRect.left -= leftMargin;
newWindowRect.right -= rightMargin;
newWindowRect.bottom -= bottomMargin;
}
// Map to screen coords
MapWindowRect(zoneWindow, nullptr, &newWindowRect);
if ((::GetWindowLong(window, GWL_STYLE) & WS_SIZEBOX) == 0)
{
newWindowRect.right = newWindowRect.left + (windowRect.right - windowRect.left);
newWindowRect.bottom = newWindowRect.top + (windowRect.bottom - windowRect.top);
}
return newWindowRect;
}
winrt::com_ptr<IZone> MakeZone(const RECT& zoneRect, const size_t zoneId) noexcept
{
if (ValidateZoneRect(zoneRect) && zoneId >= 0)
{
return winrt::make_self<Zone>(zoneRect, zoneId);
}
else
{
return nullptr;
}
}