include/sfx2/LokControlHandler.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #pragma once
  11
  12 #include <LibreOfficeKit/LibreOfficeKitEnums.h>
  13 #include <sfx2/dllapi.h>
  14 #include <sfx2/lokhelper.hxx>
  15 #include <svx/svdouno.hxx>
  16 #include <svx/svditer.hxx>
  17 #include <vcl/virdev.hxx>
  18 #include <vcl/DocWindow.hxx>
  19 #include <com/sun/star/awt/PosSize.hpp>
  20 #include <com/sun/star/awt/XControl.hpp>
  21 #include <com/sun/star/awt/XWindow.hpp>
  22 #include <com/sun/star/awt/XWindowPeer.hpp>
  23 #include <com/sun/star/awt/XGraphics.hpp>
  24 #include <com/sun/star/awt/XView.hpp>
  25 #include <toolkit/helper/vclunohelper.hxx>
  26 #include <tools/UnitConversion.hxx>
  27
  28 #include <sal/log.hxx>
  29
  30 #include <optional>
  31
  32 class LokControlHandler
  33 {
  34 public:
  35     static bool postMouseEvent(const SdrPage* pPage, const SdrView* pDrawView,
  36                                vcl::DocWindow& rMainWindow, int nType, Point aPointHmm, int nCount,
  37                                int nButtons, int nModifier)
  38     {
  39         static std::optional<PointerStyle> eDocPointerStyle;
  40
  41         o3tl::Length eControlUnitLength = MapToO3tlLength(rMainWindow.GetMapMode().GetMapUnit());
  42         SdrObjListIter aIterator(pPage, SdrIterMode::Flat);
  43         while (aIterator.IsMore())
  44         {
  45             SdrObject* pObject = aIterator.Next();
  46             SdrUnoObj* pUnoObect = dynamic_cast<SdrUnoObj*>(pObject);
  47             if (pUnoObect)
  48             {
  49                 tools::Rectangle aControlRect = pUnoObect->GetLogicRect();
  50                 tools::Rectangle aControlRectHMM
  51                     = o3tl::convert(aControlRect, eControlUnitLength, o3tl::Length::mm100);
  52
  53                 if (aControlRectHMM.Contains(aPointHmm))
  54                 {
  55                     css::uno::Reference<css::awt::XControl> xControl
  56                         = pUnoObect->GetUnoControl(*pDrawView, *rMainWindow.GetOutDev());
  57                     if (!xControl.is())
  58                         return false;
  59
  60                     css::uno::Reference<css::awt::XWindow> xControlWindow(xControl,
  61                                                                           css::uno::UNO_QUERY);
  62                     if (!xControlWindow.is())
  63                         return false;
  64
  65                     css::uno::Reference<css::awt::XWindowPeer> xWindowPeer(xControl->getPeer());
  66
  67                     VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(xWindowPeer);
  68                     if (pWindow)
  69                     {
  70                         tools::Rectangle aControlRectPx
  71                             = o3tl::convert(aControlRectHMM, o3tl::Length::mm100, o3tl::Length::px);
  72                         // used by Control::LogicInvalidate
  73                         pWindow->SetPosPixel(aControlRectPx.TopLeft());
  74
  75                         // when entering into control area save current pointer style
  76                         // and set pointer style to arrow
  77                         if (!eDocPointerStyle)
  78                         {
  79                             eDocPointerStyle = rMainWindow.GetPointer();
  80                             rMainWindow.SetPointer(pWindow->GetPointer());
  81                         }
  82
  83                         Point aControlRelativePositionHMM = aPointHmm - aControlRectHMM.TopLeft();
  84                         Point aControlRelativePosition = o3tl::convert(
  85                             aControlRelativePositionHMM, o3tl::Length::mm100, o3tl::Length::px);
  86
  87                         LokMouseEventData aMouseEventData(nType, aControlRelativePosition, nCount,
  88                                                           MouseEventModifiers::SIMPLECLICK,
  89                                                           nButtons, nModifier);
  90                         SfxLokHelper::postMouseEventAsync(pWindow, aMouseEventData);
  91                         return true;
  92                     }
  93                 }
  94             }
  95         }
  96
  97         // when exiting from control area restore document pointer style
  98         if (eDocPointerStyle)
  99         {
 100             rMainWindow.SetPointer(*eDocPointerStyle);
 101             eDocPointerStyle.reset();
 102         }
 103         return false;
 104     }
 105
 106     static void drawUnoControl(const SdrView* pDrawView, const SdrUnoObj* pUnoObect,
 107                                vcl::Window const& rMainWindow, VirtualDevice& rDevice,
 108                                tools::Rectangle const& rTileRectHMM, double scaleX, double scaleY)
 109     {
 110         css::uno::Reference<css::awt::XControl> xControl
 111             = pUnoObect->GetUnoControl(*pDrawView, *rMainWindow.GetOutDev());
 112         if (!xControl.is())
 113             return;
 114
 115         css::uno::Reference<css::awt::XWindow> xControlWindow(xControl, css::uno::UNO_QUERY);
 116         if (!xControlWindow.is())
 117             return;
 118
 119         css::uno::Reference<css::awt::XGraphics> xGraphics(rDevice.CreateUnoGraphics());
 120         if (!xGraphics.is())
 121             return;
 122
 123         css::uno::Reference<css::awt::XView> xControlView(xControl, css::uno::UNO_QUERY);
 124         if (!xControlView.is())
 125             return;
 126
 127         o3tl::Length eControlUnitLength = MapToO3tlLength(rMainWindow.GetMapMode().GetMapUnit());
 128         tools::Rectangle aControlRect = pUnoObect->GetLogicRect();
 129         tools::Rectangle aObjectRectHMM
 130             = o3tl::convert(aControlRect, eControlUnitLength, o3tl::Length::mm100);
 131         tools::Rectangle aControltRectPx
 132             = o3tl::convert(aObjectRectHMM, o3tl::Length::mm100, o3tl::Length::px);
 133
 134         Point aOffsetFromTile(aObjectRectHMM.Left() - rTileRectHMM.Left(),
 135                               aObjectRectHMM.Top() - rTileRectHMM.Top());
 136         tools::Rectangle aRectangleHMM(aOffsetFromTile, aObjectRectHMM.GetSize());
 137         tools::Rectangle aRectanglePx
 138             = o3tl::convert(aRectangleHMM, o3tl::Length::mm100, o3tl::Length::px);
 139
 140         xControlWindow->setPosSize(aControltRectPx.Left(), aControltRectPx.Top(),
 141                                    aRectanglePx.GetWidth(), aRectanglePx.GetHeight(),
 142                                    css::awt::PosSize::POSSIZE);
 143
 144         xControlView->setGraphics(xGraphics);
 145         // required for getting text label rendered with the correct scale
 146         xControlView->setZoom(1, 1);
 147
 148         xControlView->draw(aRectanglePx.Left() * scaleX, aRectanglePx.Top() * scaleY);
 149     }
 150
 151     static void paintControlTile(const SdrPage* pPage, const SdrView* pDrawView,
 152                                  vcl::Window const& rMainWindow, VirtualDevice& rDevice,
 153                                  Size aOutputSize, tools::Rectangle const& rTileRect)
 154     {
 155         tools::Rectangle aTileRectHMM
 156             = o3tl::convert(rTileRect, o3tl::Length::twip, o3tl::Length::mm100);
 157
 158         // Resizes the virtual device so to contain the entries context
 159         rDevice.SetOutputSizePixel(aOutputSize);
 160
 161         rDevice.Push(vcl::PushFlags::MAPMODE);
 162         MapMode aDeviceMapMode(rDevice.GetMapMode());
 163
 164         const Fraction scale = conversionFract(o3tl::Length::px, o3tl::Length::twip);
 165         Fraction scaleX = Fraction(aOutputSize.Width(), rTileRect.GetWidth()) * scale;
 166         Fraction scaleY = Fraction(aOutputSize.Height(), rTileRect.GetHeight()) * scale;
 167         aDeviceMapMode.SetScaleX(scaleX);
 168         aDeviceMapMode.SetScaleY(scaleY);
 169         aDeviceMapMode.SetMapUnit(MapUnit::MapPixel);
 170         rDevice.SetMapMode(aDeviceMapMode);
 171
 172         o3tl::Length eControlUnitLength = MapToO3tlLength(rMainWindow.GetMapMode().GetMapUnit());
 173         SdrObjListIter aIterator(pPage, SdrIterMode::Flat);
 174
 175         while (aIterator.IsMore())
 176         {
 177             SdrObject* pObject = aIterator.Next();
 178             SdrUnoObj* pUnoObect = dynamic_cast<SdrUnoObj*>(pObject);
 179             if (pUnoObect)
 180             {
 181                 tools::Rectangle aControlRect = pUnoObect->GetLogicRect();
 182                 tools::Rectangle aObjectRectHMM
 183                     = o3tl::convert(aControlRect, eControlUnitLength, o3tl::Length::mm100);
 184
 185                 // Check if we intersect with the tile rectangle and we
 186                 // need to draw the control.
 187                 if (aObjectRectHMM.Overlaps(aTileRectHMM))
 188                 {
 189                     drawUnoControl(pDrawView, pUnoObect, rMainWindow, rDevice, aTileRectHMM,
 190                                    double(scaleX), double(scaleY));
 191                 }
 192             }
 193         }
 194
 195         rDevice.Pop();
 196     }
 197 };
 198
 199 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */