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#include "WindowPosition.h"
#include "iregistry.h"
#include "string/convert.h"
#include <wx/frame.h>
#include <wx/display.h>
namespace
{
constexpr int DEFAULT_POSITION_X = 50;
constexpr int DEFAULT_POSITION_Y = 25;
constexpr int DEFAULT_SIZE_X = 400;
constexpr int DEFAULT_SIZE_Y = 300;
}
namespace wxutil
{
WindowPosition::WindowPosition() :
_position({ DEFAULT_POSITION_X, DEFAULT_POSITION_Y }),
_size({ DEFAULT_SIZE_X, DEFAULT_SIZE_Y }),
_window(nullptr)
{}
void WindowPosition::initialise(wxTopLevelWindow* window, const std::string& windowStateKey)
{
initialise(window, windowStateKey, 0.6f, 0.8f);
}
void WindowPosition::initialise(wxTopLevelWindow* window,
const std::string& windowStateKey,
float defaultXFraction,
float defaultYFraction)
{
// Set up events and such
connect(window);
// Load from registry if possible
if (GlobalRegistry().keyExists(windowStateKey))
{
loadFromPath(windowStateKey);
}
else
{
fitToScreen(defaultXFraction, defaultYFraction);
}
applyPosition();
}
// Connect the passed window to this object
void WindowPosition::connect(wxTopLevelWindow* window)
{
if (_window != nullptr)
{
disconnect(_window);
}
_window = window;
applyPosition();
window->Bind(wxEVT_SIZE, &WindowPosition::onResize, this);
window->Bind(wxEVT_MOVE, &WindowPosition::onMove, this);
}
void WindowPosition::disconnect(wxTopLevelWindow* window)
{
_window = nullptr;
window->Unbind(wxEVT_SIZE, &WindowPosition::onResize, this);
window->Unbind(wxEVT_MOVE, &WindowPosition::onMove, this);
}
const std::array<int, 2>& WindowPosition::getPosition() const
{
return _position;
}
const std::array<int, 2>& WindowPosition::getSize() const
{
return _size;
}
void WindowPosition::setPosition(int x, int y)
{
_position.at(0) = x;
_position.at(1) = y;
}
void WindowPosition::setSize(int width, int height)
{
_size.at(0) = width;
_size.at(1) = height;
}
void WindowPosition::saveToPath(const std::string& path)
{
if (path.empty()) return;
GlobalRegistry().setAttribute(path, "xPosition", string::to_string(_position.at(0)));
GlobalRegistry().setAttribute(path, "yPosition", string::to_string(_position.at(1)));
GlobalRegistry().setAttribute(path, "width", string::to_string(_size.at(0)));
GlobalRegistry().setAttribute(path, "height", string::to_string(_size.at(1)));
}
void WindowPosition::loadFromPath(const std::string& path)
{
if (path.empty()) return;
_position.at(0) = string::convert<int>(GlobalRegistry().getAttribute(path, "xPosition"));
_position.at(1) = string::convert<int>(GlobalRegistry().getAttribute(path, "yPosition"));
_size.at(0) = string::convert<int>(GlobalRegistry().getAttribute(path, "width"));
_size.at(1) = string::convert<int>(GlobalRegistry().getAttribute(path, "height"));
if (_size.at(0) == 0 || _size.at(1) == 0)
{
auto defaultXFraction = string::convert<float>(GlobalRegistry().getAttribute(path, "defaultWidthFraction"));
auto defaultYFraction = string::convert<float>(GlobalRegistry().getAttribute(path, "defaultHeightFraction"));
fitToScreen(defaultXFraction, defaultYFraction);
}
applyPosition();
}
void WindowPosition::applyPosition()
{
if (_window == nullptr) return;
if (_size.at(0) == 0 || _size.at(1) == 0)
{
// Don't apply empty sizes
return;
}
// On multi-monitor setups, wxWidgets offers a virtual big screen with
// coordinates going from 0,0 to whatever lower-rightmost point there is
// Sanity check the window position
wxRect targetPos(_position.at(0), _position.at(1), _size.at(0), _size.at(1));
constexpr int TOL = 8;
// Employ a few pixels tolerance to allow for placement very near the borders
if (wxDisplay::GetFromPoint(targetPos.GetTopLeft() + wxPoint(TOL, TOL)) == wxNOT_FOUND)
{
// Window probably ends up invisible, refuse these coords
_window->CenterOnParent();
}
else
{
_window->SetPosition(wxPoint(_position.at(0), _position.at(1)));
}
_window->SetSize(_size.at(0), _size.at(1));
}
// Reads the position from the window
void WindowPosition::readPosition()
{
if (_window != nullptr)
{
_window->GetScreenPosition(&_position.at(0), &_position.at(1));
_window->GetSize(&_size.at(0), &_size.at(1));
}
}
void WindowPosition::fitToScreen(float xfraction, float yfraction)
{
if (_window == nullptr) return;
wxDisplay display(wxDisplay::GetFromWindow(_window));
// Pass the call
fitToScreen(display.GetGeometry(), xfraction, yfraction);
}
void WindowPosition::fitToScreen(const wxRect& screen, float xfraction, float yfraction)
{
_size.at(0) = static_cast<int>(screen.GetWidth() * xfraction) - 12;
_size.at(1) = static_cast<int>(screen.GetHeight() * yfraction) - 48;
_position.at(0) = screen.GetX() + (screen.GetWidth() - _size.at(0) - 12) / 2;
_position.at(1) = screen.GetY() + (screen.GetHeight() - _size.at(1) - 48) / 2;
}
void WindowPosition::onResize(wxSizeEvent& ev)
{
setSize(ev.GetSize().GetWidth(), ev.GetSize().GetHeight());
ev.Skip();
}
void WindowPosition::onMove(wxMoveEvent& ev)
{
if (_window == nullptr) return;
// The position passed in the wxMoveEvent seems (on my Win10 system)
// to be off by about x=8,y=51
// Call GetScreenPosition to get the real coordinates
//setPosition(ev.GetPosition().x, ev.GetPosition().y);
_window->GetScreenPosition(&_position.at(0), &_position.at(1));
ev.Skip();
}
} // namespace
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