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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 <sfx2/objsh.hxx>
#include <comphelper/dispatchcommand.hxx>
#include <comphelper/lok.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <tools/fract.hxx>
#include <tools/UnitConversion.hxx>
#include <vcl/layout.hxx>
#include <vcl/virdev.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>
LokStarMathHelper::LokStarMathHelper(const SfxViewShell* pViewShell)
: mpViewShell(pViewShell)
{
if (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(u"com.sun.star.formula.FormulaProperties"_ustr))
{
if (css::uno::Reference<css::frame::XModel> xModel{ xComp,
css::uno::UNO_QUERY })
{
if (auto xController = xModel->getCurrentController())
{
mpIPClient = pIPClient;
mxFrame = xController->getFrame();
}
}
}
}
}
}
}
void LokStarMathHelper::Dispatch(
const OUString& cmd, const css::uno::Sequence<css::beans::PropertyValue>& rArguments) const
{
if (mxFrame)
comphelper::dispatchCommand(cmd, mxFrame, rArguments);
}
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 (mxFrame)
{
css::uno::Reference<css::awt::XWindow> xDockerWin = mxFrame->getContainerWindow();
mpGraphicWindow.set(FindSmGraphicWindow(VCLUnoHelper::GetWindow(xDockerWin)));
}
}
return mpGraphicWindow.get();
}
vcl::Window* LokStarMathHelper::GetWidgetWindow()
{
if (!mpWidgetWindow)
mpWidgetWindow.set(FindChildSmGraphicWidgetWindow(GetGraphicWindow()));
return mpWidgetWindow.get();
}
const SfxViewShell* LokStarMathHelper::GetSmViewShell()
{
if (vcl::Window* pGraphWindow = GetGraphicWindow())
{
return SfxViewShell::GetFirst(false, [pGraphWindow](const SfxViewShell& shell) {
return shell.GetWindow() && shell.GetWindow()->IsChild(pGraphWindow);
});
}
return nullptr;
}
tools::Rectangle LokStarMathHelper::GetBoundingBox() const
{
if (mpIPClient)
{
tools::Rectangle r(mpIPClient->GetObjArea());
if (SfxObjectShell* pObjShell = const_cast<SfxViewShell*>(mpViewShell)->GetObjectShell())
{
const o3tl::Length unit = MapToO3tlLength(pObjShell->GetMapUnit());
if (unit != o3tl::Length::twip && unit != o3tl::Length::invalid)
r = o3tl::convert(r, unit, o3tl::Length::twip);
}
return r;
}
return {};
}
bool LokStarMathHelper::postMouseEvent(int nType, int nX, int nY, int nCount, int nButtons,
int nModifier, double fPPTScaleX, double fPPTScaleY)
{
const tools::Rectangle rBBox = GetBoundingBox();
if (Point aMousePos(nX, nY); rBBox.Contains(aMousePos))
{
if (vcl::Window* pWindow = GetWidgetWindow())
{
aMousePos -= rBBox.TopLeft();
// In lok, Math does not convert coordinates (see SmGraphicWidget::SetDrawingArea,
// which disables MapMode), and uses twips internally (see SmDocShell ctor and
// SmMapUnit), but the conversion factor can depend on the client zoom.
// 1. Remove the twip->pixel factor in the passed scales
double fScaleX = o3tl::convert(fPPTScaleX, o3tl::Length::px, o3tl::Length::twip);
double fScaleY = o3tl::convert(fPPTScaleY, o3tl::Length::px, o3tl::Length::twip);
// 2. Adjust the position according to the scales
aMousePos
= Point(std::round(aMousePos.X() * fScaleX), std::round(aMousePos.Y() * fScaleY));
// 3. Take window own scaling into account (reverses the conversion done in
// SmGraphicWidget::MouseButtonDown, albeit incompletely - it does not handle
// GetFormulaDrawPos; hopefully, in lok/in-place case, it's always [ 0, 0 ]?)
aMousePos = pWindow->LogicToPixel(aMousePos);
LokMouseEventData aMouseEventData(
nType, aMousePos, nCount, MouseEventModifiers::SIMPLECLICK, nButtons, nModifier);
SfxLokHelper::postMouseEventAsync(pWindow, aMouseEventData);
return true;
}
}
return false;
}
void LokStarMathHelper::PaintTile(VirtualDevice& rDevice, const tools::Rectangle& rTileRect)
{
const tools::Rectangle aMathRect = GetBoundingBox();
if (rTileRect.GetIntersection(aMathRect).IsEmpty())
return;
vcl::Window* pWidgetWindow = GetWidgetWindow();
if (!pWidgetWindow)
return;
Point aOffset(aMathRect.Left() - rTileRect.Left(), aMathRect.Top() - rTileRect.Top());
MapMode newMode = rDevice.GetMapMode();
newMode.SetOrigin(aOffset);
rDevice.SetMapMode(newMode); // Push/Pop is done in PaintAllInPlaceOnTile
pWidgetWindow->Paint(rDevice, {}); // SmGraphicWidget::Paint does not use the passed rectangle
}
void LokStarMathHelper::PaintAllInPlaceOnTile(VirtualDevice& rDevice, int nOutputWidth,
int nOutputHeight, int nTilePosX, int nTilePosY,
tools::Long nTileWidth, tools::Long nTileHeight)
{
if (comphelper::LibreOfficeKit::isTiledAnnotations())
return;
SfxViewShell* pCurView = SfxViewShell::Current();
if (!pCurView)
return;
const ViewShellDocId nDocId = pCurView->GetDocId();
const int nPartForCurView = pCurView->getPart();
// Resizes the virtual device to contain the entries context
rDevice.SetOutputSizePixel({ nOutputWidth, nOutputHeight });
rDevice.Push(vcl::PushFlags::MAPMODE);
MapMode aMapMode(rDevice.GetMapMode());
// Scaling. Must convert from pixels to twips. We know that VirtualDevices use a DPI of 96.
const Fraction scale = conversionFract(o3tl::Length::px, o3tl::Length::twip);
const Fraction scaleX = Fraction(nOutputWidth, nTileWidth) * scale;
const Fraction scaleY = Fraction(nOutputHeight, nTileHeight) * scale;
aMapMode.SetScaleX(scaleX);
aMapMode.SetScaleY(scaleY);
aMapMode.SetMapUnit(MapUnit::MapTwip);
rDevice.SetMapMode(aMapMode);
const tools::Rectangle aTileRect(Point(nTilePosX, nTilePosY), Size(nTileWidth, nTileHeight));
for (SfxViewShell* pViewShell = SfxViewShell::GetFirst(); pViewShell;
pViewShell = SfxViewShell::GetNext(*pViewShell))
if (pViewShell->GetDocId() == nDocId && pViewShell->getPart() == nPartForCurView)
LokStarMathHelper(pViewShell).PaintTile(rDevice, aTileRect);
rDevice.Pop();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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