* Multiline attributes: read, draw and save their text
A multiline attribute (DXF attribute type 2, or 4 for a definition) has its
text as embedded MTEXT after its own groups (`101 Embedded Object`); its own
group 1 is empty. CADCraft read only the own groups, so the attribute drew
nothing, and a save wrote it back empty: its text was lost.
- `Attrib::multiline` keeps the multiline text; `text.value` holds its plain
text, which ATTEDIT and the other value editors change; an edited value
replaces the contents (`Attrib::multiline_text`).
- DXF read: ATTRIB and ATTDEF split at the marker; the MTEXT parsing is
shared with MTEXT entities (`mtext_from`).
- Drawn as multiline text; ZOOM Extents counts it.
- DXF write (2007 and later; earlier versions get one line): attribute type,
alignment point and the embedded MTEXT, only what differs from unrotated
text, as AutoCAD writes it.
- INSERT and ATTSYNC give references the definition's multiline text placed
with them; MOVE/ROTATE/SCALE, Properties rotation and scale, annotative
scaling and FLATTEN carry it.
- Tests: synthetic multiline ATTDEF and ATTRIB (read, drawn, saved, edited,
pre-2007 save, damaged embedded groups); engine INSERT, MOVE, ATTEDIT and
ATTSYNC.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Multiline attributes: read MTEXT direction from its own groups (#667, as #834 does)
#834 moves these lines' fix into the MTEXT reader; the same fix in the shared
mtext_from keeps the two compatible.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Attributes keep Verify, Preset and Lock position
ATTDEF/ATTRIB flags 4 (verify) and 8 (preset) and Lock position (group 280
after the tag, DXF 2007 and later) were dropped on save. Without Lock
position AutoCAD lets an attribute be dragged out of its reference, and its
dynamic block actions no longer carry it. A reference's attributes take Lock
position from their definitions, as AutoCAD saves them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Cody Vogt <18035288+codyvogt@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
* Multiline attributes: read, draw and save their text
A multiline attribute (DXF attribute type 2, or 4 for a definition) has its
text as embedded MTEXT after its own groups (`101 Embedded Object`); its own
group 1 is empty. CADCraft read only the own groups, so the attribute drew
nothing, and a save wrote it back empty: its text was lost.
- `Attrib::multiline` keeps the multiline text; `text.value` holds its plain
text, which ATTEDIT and the other value editors change; an edited value
replaces the contents (`Attrib::multiline_text`).
- DXF read: ATTRIB and ATTDEF split at the marker; the MTEXT parsing is
shared with MTEXT entities (`mtext_from`).
- Drawn as multiline text; ZOOM Extents counts it.
- DXF write (2007 and later; earlier versions get one line): attribute type,
alignment point and the embedded MTEXT, only what differs from unrotated
text, as AutoCAD writes it.
- INSERT and ATTSYNC give references the definition's multiline text placed
with them; MOVE/ROTATE/SCALE, Properties rotation and scale, annotative
scaling and FLATTEN carry it.
- Tests: synthetic multiline ATTDEF and ATTRIB (read, drawn, saved, edited,
pre-2007 save, damaged embedded groups); engine INSERT, MOVE, ATTEDIT and
ATTSYNC.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Multiline attributes: read MTEXT direction from its own groups (#667, as #834 does)
#834 moves these lines' fix into the MTEXT reader; the same fix in the shared
mtext_from keeps the two compatible.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Cody Vogt <18035288+codyvogt@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
`Attrib` gains optional per-attribute properties (`props`), each overriding
the attribute definition's. DXF reading takes them from the ATTRIB's groups
8/6/62/420/370; writing gives each ATTRIB the properties it is drawn with.
The renderer prefers them over the definition's. -ATTEDIT's Layer and Color
options set them; ATTSYNC resets them to the definitions, as in AutoCAD.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
- A dimension on a layer with a viewport colour override now takes the
override inside that viewport (dimension and extension lines, arrows,
text), like every other object.
- A LEADER's arrowhead is DIMASZ x DIMSCALE of the leader's dimension
style; the drawing's DIMSCALE only applies when the style's is 0 (as
for dimensions), and both 0 no longer gives a zero-size arrow.
- Attributes are drawn with the properties of their attribute
definition, which AutoCAD copies to the attribute on insertion:
ByLayer = the definition's layer (layer 0 = the block reference's
layer), ByBlock = the block reference's colour and lineweight,
explicit colours and lineweights as set. An attribute on an off or
frozen layer is hidden. Attributes without a definition keep the block
reference's colour and now its lineweight too, instead of 0.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
