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 <sfx2/lokhelper.hxx>
  13 #include <svx/svdouno.hxx>
  14 #include <svx/svditer.hxx>
  15 #include <vcl/virdev.hxx>
  16 #include <vcl/DocWindow.hxx>
  17 #include <com/sun/star/awt/PosSize.hpp>
  18 #include <com/sun/star/awt/XControl.hpp>
  19 #include <com/sun/star/awt/XWindow.hpp>
  20 #include <com/sun/star/awt/XWindowPeer.hpp>
  21 #include <com/sun/star/awt/XGraphics.hpp>
  22 #include <com/sun/star/awt/XView.hpp>
  23 #include <toolkit/helper/vclunohelper.hxx>
  24 #include <tools/UnitConversion.hxx>
  25
  26 #include <optional>
  27
  28 class LokControlHandler
  29 {
  30 public:
  31     static bool postMouseEvent(const SdrPage* pPage, const SdrView* pDrawView,
  32                                vcl::DocWindow& rMainWindow, int nType, Point aPointHmm, int nCount,
  33                                int nButtons, int nModifier)
  34     {
  35         static std::optional<PointerStyle> eDocPointerStyle;
  36
  37         o3tl::Length eControlUnitLength = MapToO3tlLength(rMainWindow.GetMapMode().GetMapUnit());
  38         SdrObjListIter aIterator(pPage, SdrIterMode::Flat);
  39         while (aIterator.IsMore())
  40         {
  41             SdrObject* pObject = aIterator.Next();
  42             SdrUnoObj* pUnoObect = dynamic_cast<SdrUnoObj*>(pObject);
  43             if (pUnoObect)
  44             {
  45                 tools::Rectangle aControlRect = pUnoObect->GetLogicRect();
  46                 tools::Rectangle aControlRectHMM
  47                     = o3tl::convert(aControlRect, eControlUnitLength, o3tl::Length::mm100);
  48
  49                 if (aControlRectHMM.Contains(aPointHmm))
  50                 {
  51                     css::uno::Reference<css::awt::XControl> xControl
  52                         = pUnoObect->GetUnoControl(*pDrawView, *rMainWindow.GetOutDev());
  53                     if (!xControl.is())
  54                         return false;
  55
  56                     css::uno::Reference<css::awt::XWindow> xControlWindow(xControl,
  57                                                                           css::uno::UNO_QUERY);
  58                     if (!xControlWindow.is())
  59                         return false;
  60
  61                     css::uno::Reference<css::awt::XWindowPeer> xWindowPeer(xControl->getPeer());
  62
  63                     VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(xWindowPeer);
  64                     if (pWindow)
  65                     {
  66                         tools::Rectangle aControlRectPx
  67                             = o3tl::convert(aControlRectHMM, o3tl::Length::mm100, o3tl::Length::px);
  68                         // used by Control::LogicInvalidate
  69                         pWindow->SetPosPixel(aControlRectPx.TopLeft());
  70
  71                         // when entering into control area save current pointer style
  72                         // and set pointer style to arrow
  73                         if (!eDocPointerStyle)
  74                         {
  75                             eDocPointerStyle = rMainWindow.GetPointer();
  76                             rMainWindow.SetPointer(pWindow->GetPointer());
  77                         }
  78
  79                         Point aControlRelativePositionHMM = aPointHmm - aControlRectHMM.TopLeft();
  80                         Point aControlRelativePosition = o3tl::convert(
  81                             aControlRelativePositionHMM, o3tl::Length::mm100, o3tl::Length::px);
  82
  83                         LokMouseEventData aMouseEventData(nType, aControlRelativePosition, nCount,
  84                                                           MouseEventModifiers::SIMPLECLICK,
  85                                                           nButtons, nModifier);
  86                         SfxLokHelper::postMouseEventAsync(pWindow, aMouseEventData);
  87                         return true;
  88                     }
  89                 }
  90             }
  91         }
  92
  93         // when exiting from control area restore document pointer style
  94         if (eDocPointerStyle)
  95         {
  96             rMainWindow.SetPointer(*eDocPointerStyle);
  97             eDocPointerStyle.reset();
  98         }
  99         return false;
 100     }
 101
 102     static void drawUnoControl(const SdrView* pDrawView, const SdrUnoObj* pUnoObect,
 103                                vcl::Window const& rMainWindow, VirtualDevice& rDevice,
 104                                tools::Rectangle const& rTileRectHMM, double scaleX, double scaleY)
 105     {
 106         css::uno::Reference<css::awt::XControl> xControl
 107             = pUnoObect->GetUnoControl(*pDrawView, *rMainWindow.GetOutDev());
 108         if (!xControl.is())
 109             return;
 110
 111         css::uno::Reference<css::awt::XWindow> xControlWindow(xControl, css::uno::UNO_QUERY);
 112         if (!xControlWindow.is())
 113             return;
 114
 115         css::uno::Reference<css::awt::XGraphics> xGraphics(rDevice.CreateUnoGraphics());
 116         if (!xGraphics.is())
 117             return;
 118
 119         css::uno::Reference<css::awt::XView> xControlView(xControl, css::uno::UNO_QUERY);
 120         if (!xControlView.is())
 121             return;
 122
 123         o3tl::Length eControlUnitLength = MapToO3tlLength(rMainWindow.GetMapMode().GetMapUnit());
 124         tools::Rectangle aControlRect = pUnoObect->GetLogicRect();
 125         tools::Rectangle aObjectRectHMM
 126             = o3tl::convert(aControlRect, eControlUnitLength, o3tl::Length::mm100);
 127         tools::Rectangle aControltRectPx
 128             = o3tl::convert(aObjectRectHMM, o3tl::Length::mm100, o3tl::Length::px);
 129
 130         Point aOffsetFromTile(aObjectRectHMM.Left() - rTileRectHMM.Left(),
 131                               aObjectRectHMM.Top() - rTileRectHMM.Top());
 132         tools::Rectangle aRectangleHMM(aOffsetFromTile, aObjectRectHMM.GetSize());
 133         tools::Rectangle aRectanglePx
 134             = o3tl::convert(aRectangleHMM, o3tl::Length::mm100, o3tl::Length::px);
 135
 136         xControlWindow->setPosSize(aControltRectPx.Left(), aControltRectPx.Top(),
 137                                    aRectanglePx.GetWidth(), aRectanglePx.GetHeight(),
 138                                    css::awt::PosSize::POSSIZE);
 139
 140         xControlView->setGraphics(xGraphics);
 141         // required for getting text label rendered with the correct scale
 142         xControlView->setZoom(1, 1);
 143
 144         xControlView->draw(aRectanglePx.Left() * scaleX, aRectanglePx.Top() * scaleY);
 145     }
 146
 147     static void paintControlTile(const SdrPage* pPage, const SdrView* pDrawView,
 148                                  vcl::Window const& rMainWindow, VirtualDevice& rDevice,
 149                                  Size aOutputSize, tools::Rectangle const& rTileRect)
 150     {
 151         tools::Rectangle aTileRectHMM
 152             = o3tl::convert(rTileRect, o3tl::Length::twip, o3tl::Length::mm100);
 153
 154         // Resizes the virtual device so to contain the entries context
 155         rDevice.SetOutputSizePixel(aOutputSize);
 156
 157         rDevice.Push(vcl::PushFlags::MAPMODE);
 158         MapMode aDeviceMapMode(rDevice.GetMapMode());
 159
 160         const Fraction scale = conversionFract(o3tl::Length::px, o3tl::Length::twip);
 161         Fraction scaleX = Fraction(aOutputSize.Width(), rTileRect.GetWidth()) * scale;
 162         Fraction scaleY = Fraction(aOutputSize.Height(), rTileRect.GetHeight()) * scale;
 163         aDeviceMapMode.SetScaleX(scaleX);
 164         aDeviceMapMode.SetScaleY(scaleY);
 165         aDeviceMapMode.SetMapUnit(MapUnit::MapPixel);
 166         rDevice.SetMapMode(aDeviceMapMode);
 167
 168         o3tl::Length eControlUnitLength = MapToO3tlLength(rMainWindow.GetMapMode().GetMapUnit());
 169         SdrObjListIter aIterator(pPage, SdrIterMode::Flat);
 170
 171         while (aIterator.IsMore())
 172         {
 173             SdrObject* pObject = aIterator.Next();
 174             SdrUnoObj* pUnoObect = dynamic_cast<SdrUnoObj*>(pObject);
 175             if (pUnoObect)
 176             {
 177                 tools::Rectangle aControlRect = pUnoObect->GetLogicRect();
 178                 tools::Rectangle aObjectRectHMM
 179                     = o3tl::convert(aControlRect, eControlUnitLength, o3tl::Length::mm100);
 180
 181                 // Check if we intersect with the tile rectangle and we
 182                 // need to draw the control.
 183                 if (aObjectRectHMM.Overlaps(aTileRectHMM))
 184                 {
 185                     drawUnoControl(pDrawView, pUnoObect, rMainWindow, rDevice, aTileRectHMM,
 186                                    double(scaleX), double(scaleY));
 187                 }
 188             }
 189         }
 190
 191         rDevice.Pop();
 192     }
 193 };
 194
 195 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */