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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <sal/config.h>
#include <sfx2/ipclient.hxx>
#include <sfx2/lokcomponenthelpers.hxx>
#include <sfx2/lokhelper.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <tools/fract.hxx>
#include <vcl/layout.hxx>
#include <vcl/window.hxx>
#include <com/sun/star/embed/XEmbeddedObject.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
css::uno::Reference<css::frame::XController>& LokStarMathHelper::GetXController()
{
if (!mxController && mpViewShell)
{
if (const SfxInPlaceClient* pIPClient = mpViewShell->GetIPClient())
{
if (const auto& xEmbObj = pIPClient->GetObject())
{
css::uno::Reference<css::lang::XServiceInfo> xComp(xEmbObj->getComponent(),
css::uno::UNO_QUERY);
if (xComp && xComp->supportsService("com.sun.star.formula.FormulaProperties"))
if (css::uno::Reference<css::frame::XModel> xModel{ xComp,
css::uno::UNO_QUERY })
mxController = xModel->getCurrentController();
}
}
}
return mxController;
}
namespace
{
// Find a child SmGraphicWindow*
vcl::Window* FindSmGraphicWindow(vcl::Window* pWin)
{
if (!pWin)
return nullptr;
if (pWin->IsStarMath())
return pWin;
pWin = pWin->GetWindow(GetWindowType::FirstChild);
while (pWin)
{
if (vcl::Window* pSmGraphicWindow = FindSmGraphicWindow(pWin))
return pSmGraphicWindow;
pWin = pWin->GetWindow(GetWindowType::Next);
}
return nullptr;
}
// Find a child window that corresponds to SmGraphicWidget
vcl::Window* FindChildSmGraphicWidgetWindow(vcl::Window* pWin)
{
if (!pWin)
return nullptr;
// The needed window is a VclDrawingArea
if (dynamic_cast<VclDrawingArea*>(pWin))
return pWin;
pWin = pWin->GetWindow(GetWindowType::FirstChild);
while (pWin)
{
if (vcl::Window* pSmGraphicWidgetWindow = FindChildSmGraphicWidgetWindow(pWin))
return pSmGraphicWidgetWindow;
pWin = pWin->GetWindow(GetWindowType::Next);
}
return nullptr;
}
}
vcl::Window* LokStarMathHelper::GetGraphicWindow()
{
if (!mpGraphicWindow)
{
if (const css::uno::Reference<css::frame::XController>& xController = GetXController())
{
if (const css::uno::Reference<css::frame::XFrame> xFrame = xController->getFrame())
{
css::uno::Reference<css::awt::XWindow> xDockerWin = xFrame->getContainerWindow();
mpGraphicWindow.set(FindSmGraphicWindow(VCLUnoHelper::GetWindow(xDockerWin)));
}
}
}
return mpGraphicWindow.get();
}
vcl::Window* LokStarMathHelper::GetWidgetWindow()
{
if (!mpWidgetWindow)
mpWidgetWindow.set(FindChildSmGraphicWidgetWindow(GetGraphicWindow()));
return mpWidgetWindow.get();
}
tools::Rectangle LokStarMathHelper::GetBoundingBox()
{
if (mpViewShell)
{
if (SfxInPlaceClient* pIPClient = mpViewShell->GetIPClient())
{
if (vcl::Window* pRootWin = pIPClient->GetEditWin())
{
if (vcl::Window* pWindow = GetWidgetWindow())
{
// In all cases, the following code fragment
// returns the bounding box in twips.
// Note: the correct mapmode (representing document zoom) is provided by
// GraphicWindow, not WidgetWindow
const MapMode& aMapMode = GetGraphicWindow()->GetMapMode();
const auto & [ m, d ]
= o3tl::getConversionMulDiv(o3tl::Length::px, o3tl::Length::twip);
const Fraction& scaleX = aMapMode.GetScaleX();
const Fraction& scaleY = aMapMode.GetScaleY();
const auto nXNum = m * scaleX.GetDenominator();
const auto nXDen = d * scaleX.GetNumerator();
const auto nYNum = m * scaleY.GetDenominator();
const auto nYDen = d * scaleY.GetNumerator();
Point aOffset
= pWindow->GetOffsetPixelFrom(*pRootWin).scale(nXNum, nXDen, nYNum, nYDen);
Size aSize = pWindow->GetSizePixel().scale(nXNum, nXDen, nYNum, nYDen);
return { aOffset, aSize };
}
}
}
}
return {};
}
bool LokStarMathHelper::postMouseEvent(int nType, int nX, int nY, int nCount, int nButtons,
int nModifier, double fScaleX, double fScaleY)
{
if (vcl::Window* pWindow = GetWidgetWindow())
{
Point aMousePos(nX, nY);
tools::Rectangle rBBox = GetBoundingBox();
if (rBBox.Contains(aMousePos))
{
int nWinX = nX - rBBox.Left();
int nWinY = nY - rBBox.Top();
// window expects pixels, but the conversion factor
// can depend on the client zoom
Point aPos(nWinX * fScaleX, nWinY * fScaleY);
LokMouseEventData aMouseEventData(nType, aPos, nCount, MouseEventModifiers::SIMPLECLICK,
nButtons, nModifier);
SfxLokHelper::postMouseEventAsync(pWindow, aMouseEventData);
return true;
}
}
return false;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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