include/vcl/ITiledRenderable.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
  11 #pragma once
  12
  13 #include <sfx2/viewsh.hxx>
  14 #include <tools/gen.hxx>
  15 #include <rtl/ustring.hxx>
  16 #include <vcl/dllapi.h>
  17 #include <vcl/ptrstyle.hxx>
  18 #include <vcl/vclptr.hxx>
  19 #include <map>
  20 #include <com/sun/star/datatransfer/XTransferable.hpp>
  21 #include <basegfx/range/b2drange.hxx>
  22
  23 namespace com::sun::star::beans { struct PropertyValue; }
  24 namespace com::sun::star::datatransfer::clipboard { class XClipboard; }
  25 namespace com::sun::star::uno { template <class interface_type> class Reference; }
  26 namespace com::sun::star::uno { template <typename > class Sequence; }
  27 namespace vcl { class Window; }
  28 namespace tools { class JsonWriter; }
  29
  30 class VirtualDevice;
  31
  32 namespace vcl
  33 {
  34     /*
  35      * Map directly to css cursor styles to avoid further mapping in the client.
  36      * Gtk (via gdk_cursor_new_from_name) also supports the same css cursor styles.
  37      *
  38      * This was created partially with help of the mappings in gtkdata.cxx.
  39      * The list is incomplete as some cursor style simply aren't supported
  40      * by css, it might turn out to be worth mapping some of these missing cursors
  41      * to available cursors?
  42      */
  43     extern const std::map <PointerStyle, OString> gaLOKPointerMap;
  44
  45
  46 class VCL_DLLPUBLIC SAL_LOPLUGIN_ANNOTATE("crosscast") ITiledRenderable
  47 {
  48 public:
  49
  50     typedef std::map<OUString, OUString>  StringMap;
  51
  52     virtual ~ITiledRenderable();
  53
  54     /**
  55      * Paint a tile to a given VirtualDevice.
  56      *
  57      * Output parameters are measured in pixels, tile parameters are in
  58      * twips.
  59      */
  60     virtual void paintTile( VirtualDevice &rDevice,
  61                             int nOutputWidth,
  62                             int nOutputHeight,
  63                             int nTilePosX,
  64                             int nTilePosY,
  65                             tools::Long nTileWidth,
  66                             tools::Long nTileHeight ) = 0;
  67
  68     /**
  69      * Get the document size in twips.
  70      */
  71     virtual Size getDocumentSize() = 0;
  72
  73     /**
  74      * Get the data area size (in Calc last column and row).
  75      */
  76     virtual Size getDataArea(long /*nPart*/)
  77     {
  78         return Size(1, 1);
  79     }
  80
  81     /**
  82      * Set the document "part", i.e. slide for a slideshow, and
  83      * tab for a spreadsheet.
  84      * bool bAllowChangeFocus - used to not disturb other users while editing when
  85      *                          setPart is used for tile rendering only
  86      */
  87     virtual void setPart( int /*nPart*/, bool /*bAllowChangeFocus*/ = true ) {}
  88
  89     /**
  90      * Get the number of parts -- see setPart for further details.
  91      */
  92     virtual int getParts()
  93     {
  94         return 1;
  95     }
  96
  97     /**
  98      * Get the currently displayed/selected part -- see setPart for further
  99      * details.
 100      */
 101     virtual int getPart()
 102     {
 103         return 0;
 104     }
 105
 106     /**
 107      * Get the name of the currently displayed part, i.e. sheet in a spreadsheet
 108      * or slide in a presentation.
 109      */
 110     virtual OUString getPartName(int)
 111     {
 112         return OUString();
 113     }
 114
 115     /**
 116      * Get the vcl::Window for the document being edited
 117      */
 118     virtual VclPtr<vcl::Window> getDocWindow() = 0;
 119
 120     /**
 121      * Get the hash of the currently displayed part, i.e. sheet in a spreadsheet
 122      * or slide in a presentation.
 123      */
 124     virtual OUString getPartHash(int nPart) = 0;
 125
 126     /// @see lok::Document::setPartMode().
 127     virtual void setPartMode(int) {}
 128
 129     /**
 130      * Get the currently used EditMode (supported in Impress).
 131      */
 132     virtual int getEditMode()
 133     {
 134         return 0;
 135     }
 136
 137     /**
 138      * Set the currently used EditMode (supported in Impress).
 139      */
 140     virtual void setEditMode(int) {}
 141
 142     /**
 143      * Setup various document properties that are needed for the document to
 144      * be renderable via tiled rendering.
 145      */
 146     virtual void initializeForTiledRendering(const css::uno::Sequence<css::beans::PropertyValue>& rArguments) = 0;
 147
 148     /**
 149      * Posts a keyboard event on the document.
 150      *
 151      * @see lok::Document::postKeyEvent().
 152      */
 153     virtual void postKeyEvent(int nType, int nCharCode, int nKeyCode) = 0;
 154
 155     /**
 156      * Posts a mouse event on the document.
 157      *
 158      * @see lok::Document::postMouseEvent().
 159      */
 160     virtual void postMouseEvent(int nType, int nX, int nY, int nCount, int nButtons, int nModifier) = 0;
 161
 162     /**
 163      * Sets the start or end of a text selection.
 164      *
 165      * @see lok::Document::setTextSelection().
 166      */
 167     virtual void setTextSelection(int nType, int nX, int nY) = 0;
 168
 169     /**
 170      * Gets the selection as a transferable for later processing
 171      */
 172     virtual css::uno::Reference<css::datatransfer::XTransferable> getSelection() = 0;
 173
 174     /**
 175      * Adjusts the graphic selection.
 176      *
 177      * @see lok::Document::setGraphicSelection().
 178      */
 179     virtual void setGraphicSelection(int nType, int nX, int nY) = 0;
 180
 181     /**
 182      * @see lok::Document::resetSelection().
 183      */
 184     virtual void resetSelection() = 0;
 185
 186     /**
 187      * @see lok::Document::getPartPageRectangles().
 188      */
 189     virtual OUString getPartPageRectangles()
 190     {
 191         return OUString();
 192     }
 193
 194     /**
 195      * Get position and content of row/column headers of Calc documents.
 196      *
 197      * @param rRectangle - if not empty, then limit the output only to the area of this rectangle
 198      * @return a JSON describing position/content of rows/columns
 199      */
 200     virtual void getRowColumnHeaders(const tools::Rectangle& /*rRectangle*/, tools::JsonWriter& /*rJsonWriter*/)
 201     {
 202     }
 203
 204     /**
 205      * Generates a serialization of the active (Calc document) sheet's geometry data.
 206      *
 207      * @param bColumns - if true, the column widths/hidden/filtered/groups data
 208      *     are included depending on the settings of the flags bSizes, bHidden,
 209      *     bFiltered and bGroups.
 210      * @param bRows - if true, the row heights/hidden/filtered/groups data
 211      *     are included depending on the settings of the flags bSizes, bHidden,
 212      *     bFiltered and bGroups.
 213      * @bSizes - if true, the column-widths and/or row-heights data (represented as a list of spans)
 214      *     are included depending on the settings of the flags bColumns and bRows.
 215      * @bHidden - if true, the hidden columns and/or rows data (represented as a list of spans)
 216      *     are included depending on the settings of the flags bColumns and bRows.
 217      * @bFiltered - if true, the filtered columns and/or rows data (represented as a list of spans)
 218      *     are included depending on the settings of the flags bColumns and bRows.
 219      * @bGroups - if true, the column grouping and/or row grouping data
 220      *     are included depending on the settings of the flags bColumns and bRows.
 221      * @return serialization of the active sheet's geometry data as OString.
 222      */
 223     virtual OString getSheetGeometryData(bool /*bColumns*/, bool /*bRows*/, bool /*bSizes*/,
 224                                          bool /*bHidden*/, bool /*bFiltered*/, bool /*bGroups*/)
 225     {
 226         return ""_ostr;
 227     }
 228
 229     /**
 230      * Get position and size of cell cursor in Calc - as JSON in the
 231      * current' views' co-ordinate system.
 232      * (This could maybe also be used for tables in Writer/Impress in future?)
 233      */
 234     virtual void getCellCursor(tools::JsonWriter& /*rJsonWriter*/)
 235     {
 236     }
 237
 238     virtual PointerStyle getPointer() = 0;
 239
 240     /// Sets the clipboard of the component.
 241     virtual void setClipboard(const css::uno::Reference<css::datatransfer::clipboard::XClipboard>& xClipboard) = 0;
 242
 243     /// If the current contents of the clipboard is something we can paste.
 244     virtual bool isMimeTypeSupported() = 0;
 245
 246     /**
 247      * Save the client's view so that we can compute the right zoom level
 248      * for the mouse events.
 249      * @param nTilePixelWidth - tile width in pixels
 250      * @param nTilePixelHeight - tile height in pixels
 251      * @param nTileTwipWidth - tile width in twips
 252      * @param nTileTwipHeight - tile height in twips
 253      */
 254     virtual void setClientZoom(int /*nTilePixelWidth*/,
 255                                int /*nTilePixelHeight*/,
 256                                int /*nTileTwipWidth*/,
 257                                int /*nTileTwipHeight*/)
 258     {}
 259
 260     /// @see lok::Document::setClientVisibleArea().
 261     virtual void setClientVisibleArea(const tools::Rectangle& /*rRectangle*/)
 262     {
 263     }
 264
 265     /**
 266      * Show/Hide a single row/column header outline for Calc documents.
 267      *
 268      * @param bColumn - if we are dealing with a column or row group
 269      * @param nLevel - the level to which the group belongs
 270      * @param nIndex - the group entry index
 271      * @param bHidden - the new group state (collapsed/expanded)
 272      */
 273     virtual void setOutlineState(bool /*bColumn*/, int /*nLevel*/, int /*nIndex*/, bool /*bHidden*/)
 274     {
 275         return;
 276     }
 277
 278     /// Implementation for
 279     /// lok::Document::getCommandValues(".uno:AcceptTrackedChanges") when there
 280     /// is no matching UNO API.
 281     virtual void getTrackedChanges(tools::JsonWriter&)
 282     {
 283     }
 284
 285     /// Implementation for
 286     /// lok::Document::getCommandValues(".uno:TrackedChangeAuthors").
 287     virtual void getTrackedChangeAuthors(tools::JsonWriter& /*rJsonWriter*/)
 288     {
 289     }
 290
 291     /// Implementation for
 292     /// lok::Document::getCommandValues(".uno:ViewAnnotations");
 293     virtual void getPostIts(tools::JsonWriter& /*rJsonWriter*/)
 294     {
 295     }
 296
 297     /// Implementation for
 298     /// lok::Document::getCommandValues(".uno:ViewAnnotationsPosition");
 299     virtual void getPostItsPos(tools::JsonWriter& /*rJsonWriter*/)
 300     {
 301     }
 302
 303     /// Implementation for
 304     /// lok::Document::getCommandValues(".uno:RulerState");
 305     virtual void getRulerState(tools::JsonWriter& /*rJsonWriter*/)
 306     {
 307     }
 308
 309     /*
 310      * Used for sheets in spreadsheet documents,
 311      * and slides in presentation documents.
 312      */
 313     virtual OUString getPartInfo(int /*nPart*/)
 314     {
 315         return OUString();
 316     }
 317
 318     /**
 319      * Select/Unselect a document "part", i.e. slide for a slideshow, and
 320      * tab for a spreadsheet(?).
 321      * nSelect: 0 to deselect, 1 to select, and 2 to toggle.
 322      */
 323     virtual void selectPart(int /*nPart*/, int /*nSelect*/) {}
 324
 325     /**
 326      * Move selected pages/slides to a new position.
 327      * nPosition: the new position to move to.
 328      * bDuplicate: to copy (true), or to move (false).
 329      */
 330     virtual void moveSelectedParts(int /*nPosition*/, bool /*bDuplicate*/) {}
 331
 332     /// @see lok::Document::completeFunction().
 333     virtual void completeFunction(const OUString& /*rFunctionName*/)
 334     {
 335     }
 336
 337     /**
 338      * It can happen that the underlying implementation is being disposed, but
 339      * somebody is trying to access the data...
 340      */
 341     virtual bool isDisposed() const
 342     {
 343         return false;
 344     }
 345
 346     /**
 347      * Execute a form field event in the document.
 348      * E.g. select an item from a drop down field's list.
 349      */
 350     virtual void executeFromFieldEvent(const StringMap&)
 351     {
 352     }
 353
 354     /**
 355      * Returns the rectangles of the input search result JSON
 356      */
 357     virtual std::vector<basegfx::B2DRange> getSearchResultRectangles(const char* /*pPayload*/)
 358     {
 359         return std::vector<basegfx::B2DRange>();
 360     }
 361
 362     /**
 363      * Execute a content control event in the document.
 364      * E.g. select a list item from a drop down content control.
 365      */
 366     virtual void executeContentControlEvent(const StringMap&) {}
 367
 368     /**
 369      *  Allow / disable drawing current text edit (used in Impress for slide previews)
 370      */
 371     virtual void setPaintTextEdit(bool) {}
 372
 373     /// Decides if it's OK to call getCommandValues(rCommand).
 374     virtual bool supportsCommand(std::u16string_view /*rCommand*/) { return false; }
 375
 376     /// Returns a json mapping of the possible values for the given command.
 377     virtual void getCommandValues(tools::JsonWriter& /*rJsonWriter*/, std::string_view /*rCommand*/)
 378     {
 379     }
 380
 381     /**
 382      * Returns an opaque string reflecting the render state of a component
 383      * eg. 'PD' - P for non-printing-characters, D for dark-mode.
 384      * @param pViewShell the view to get the options from, if nullptr the current view shell is used
 385      */
 386     virtual OString getViewRenderState(SfxViewShell* = nullptr) { return rtl::OString(); }
 387 };
 388 } // namespace vcl
 389
 390 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */