office-gobmx/svx
Jim Raykowski 50b731c84c tdf#34828 Give draw object a name when made
For Writer and Calc this patch sets a name to a newly created draw
object. The name is constructed from the defined singular name of the
object, followed by a space, followed by the first available whole number
begining with 1 that will provide name uniqueness.

For Draw/Impress names are not set for an object on creation. Unnamed
objects have unique names given only in the Navigator tree. The unnamed
object names shown in the tree are based on the order of shapes in the
document. This patch does not change any name behavior for Draw/Impress.

Change-Id: I91f31364c8258f7abb5810a5865fefd6b249da03
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/105774
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2021-03-25 20:28:30 +01:00
..
doc
inc update pches 2021-03-21 15:31:46 +01:00
qa const OUString -> const OUStringLiteral 2021-03-25 10:06:26 +01:00
sdi tdf#140796: Wrong English string for U+2060 character 2021-03-08 08:57:23 +01:00
source tdf#34828 Give draw object a name when made 2021-03-25 20:28:30 +01:00
uiconfig/ui drop vexpand from styles panel 2021-03-19 11:40:37 +01:00
util
AllLangMoTarget_svx.mk
CppunitTest_svx_dialogs_test.mk
CppunitTest_svx_gallery_test.mk
CppunitTest_svx_unit.mk tdf#141021 Correct sign in Origin in Extrusion North 2021-03-17 00:06:57 +01:00
Executable_gengal.mk
IwyuFilter_svx.yaml
JunitTest_svx_unoapi.mk
Library_svx.mk
Library_svxcore.mk
Library_textconversiondlgs.mk
Makefile
Module_svx.mk
Package_gengal.mk
README.md Using .md extension/Markdown syntax for modules README 2021-03-24 11:46:14 +01:00
UIConfig_svx.mk
UITest_svx_table.mk

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

xoutdev this is where a lot of wht 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 for general information about drawinglayer.

Below is the class diagram that comes from http://www.openoffice.org/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 ViewObjecContact instances (1:N relation to both visualizable objects and SdrViews)