Files
odfstudio/svx
Henry Castro d5aa9ad2d0 engine: svx: name the sinusoid by the command that exists
The Shapes deck asked its basic shapes gallery for
.uno:SymbolShapes.sinusoid, and no such command is defined: the one the
registry carries is .uno:BasicShapes.sinusoid, labelled "Sinusoid". So that
entry had no label, no tooltip and therefore no accessible name at all - a
shape a screen reader could reach and not announce.

The sidebar validator reported it eleven times, once per ancestor as it
recursed, which is what made a single nameless shape read like a broken panel
and take the sweep down with it. It now says the sidebar passed all checks.

Change-Id: I4cef17cd0d69ea291e4ddefe85339cadb6b245bd
Signed-off-by: Henry Castro <henry.castro@collabora.com>
Reviewed-on: https://gerrit.collaboraoffice.com/c/online/+/11770
Tested-by: Jenkins CPCI <releng@collaboraoffice.com>
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
(cherry picked from commit f01368af956ee7f556c4a14e9b711322a9a2a5e1)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/210952
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
Tested-by: Jenkins
2026-09-14 20:20:46 +02:00
..
…
…
…
2026-05-29 13:38:32 +02:00

Graphics Related Helper Code

Contains graphics related helper code. Lots of the draw and impress code is in this shared library.

  • xoutdev

    this is where a lot of the work would happen to move to the canvas. (what does that mean?)

  • svdraw

    transparent gradient stuff. [seriously? surely much more, too]

SdrObject

The shapes you can see in LibreOffice (like rectangle, etc.) are SdrObjects. They are declared as a hierarchy:

SdrObject <- SdrAttrObj <- E3dObject <- E3dCompoundObject <- E3dCubeObj
    ^ ^ ^             ^            ^              | | ^ ^
    | | |             |            |              | | | +--- E3dExtrudeObj
    | | |             |            |              | | +----- E3dLatheObj
    | | |             |            |              | +------- E3dPolygonObj
    | | |             |            |              +--------- E3dSphereObj
    | | |             |            +--- E3dScene...
    | | |             |
    | | |             +--- SdrTextObj <- SdrObjCustomShape...
    | | |                   ^ ^ ^ ^ ^
    | | |                   | | | | +--- SdrEdgeObj...
    | | |                   | | | +----- SdrMeasureObj...
    | | |                   | | +------- SdrPathObj...
    | | |                   | +--------- SdrRectObj...
    | | |                   +----------- SdrTableObj...
    | | +--- SdrObjGroup...
    | + ---- SdrPageObj...
    +------- SdrVirtObj...

The above is incomplete of course.

SdrModel / SdrView

Copied from svdview.hxx:

First of all the app creates a SdrModel. Then it opens a Win and creates a SdrView. ShowSdrPage() announces a page at SdrView. It's possible to show SdrView in any Wins at once.

SdrView can show as many Wins as it wants at once. Pages are announced or checked out with the help of ShowSdrPage()/HideSdrPage(). For every announced page there is a SdrPageView instance in container aPages. If more than one page is showed, you have to pay attention that the offset parameter of ShowSdrPage() is conformed to the size of the page (to prevent overlapping of two pages).

SdrView itself is inherited from many objects in a chain of inheritance (all that starts with SdrPaintView - that is itself inherited from few classes too):

SdrPaintView <- SdrSnapView <- SdrMarkView <- SdrEditView <- SdrPolyEditView
                                                                 ^
+----------------------------------------------------------------+
|
SdrGlueEditView <- SdrObjEditView <- SdrExchangeView <- SdrDragView
                                                                 ^
+----------------------------------------------------------------+
|
SdrCreateView <- SdrView

From SdrView on, it is not flat, but a real hierarchy again.

Drawing Layer / SdrObject(s)

See drawinglayer/README.md for general information about drawinglayer.

Below is the class diagram that comes from https://web.archive.org/web/20160827020830if_/http://www.openoffice.org:80/marketing/ooocon2006/presentations/wednesday_g11.odp slide number 6.

.------- Model --------------.      .------- View -----------------------------------------.
| SdrObject - ViewContact    | 1..* | ViewObjectContact                                    |
|              getChild()    |------|    getPrimitiveList()  -----> Object(s) ---> SdrView |
|              getVOC()      |      |    getRecPrimitiveList()      Contact                |
|              getViewInd... |      |________|_____________________________________________|
| ...ependentPrimitiveList() |               |
|____________________________|            generates
                                             |           ______
                                             V          /      |
                                   .----------------------.    |
                                   | basePrimitive        |    |
                                   |   getRange()         |<---'
                                   |   getDecomposition() |
                                   |______________________|

For SdrObjects, there are own DrawingLayer primitives in svx/source/sdr/primitive2d

The ViewContact / ViewObject / ViewObjectContact are in svx/source/sdr/contact Decomposes the SdrObjects, and does all sort of operations on them.

If the number of visualizable objects (e.g. SdrObjects) is X, and the number of SdrViews is Y, then:

  • there are X ViewContact instances (1:1 relation with a visualizable object)
  • there are Y ObjectContact instances (1:1 relation with an SdrView)
  • there are X*Y ViewObjectContact instances (1:N relation to both visualizable objects and SdrViews)