NAME¶
TextComp, TextView, TextGraphic, PSText - multiline text component subject,
view, structured graphic, and PostScript external representation
SYNOPSIS¶
#include <Unidraw/Components/text.h>
DESCRIPTION¶
TextComp is a GraphicComp that defines a piece of multiline text. It uses a
TextGraphic (a subclass of Label) to store its graphical attributes. TextView
is a GraphicView for displaying the text. PSText is a PostScriptView that
externalizes the subject's information in PostScript form.
TEXTCOMP PUBLIC OPERATIONS¶
- TextComp(TextGraphic* = nil)
- The constructor takes an optional TextGraphic that defines
the attributes of the text.
- virtual void Interpret(Command*)
- virtual void Uninterpret(Command*)
- TextComp redefines (Un)interpret to ignore BrushCmd and
PatternCmd and to (un)interpret FontCmd.
- TextGraphic* GetText()
- Return the TextGraphic that defines the text component's
attributes. GetText is simply a more specific form of the GetGraphic
operation.
TEXTVIEW PUBLIC OPERATIONS¶
- TextView(TextComp* = nil)
- Create an TextView, optionally supplying the subject.
- virtual void Interpret(Command*)
- TextView interprets AlignToGridCmd to align its lower-left
to the grid.
- virtual Manipulator* CreateManipulator(
- Viewer*, Event&, Transformer*, Tool*
- )
- virtual void InterpretManipulator(Manipulator*)
- TextView redefines its response to manipulation with a
GraphicCompTool. GraphicCompTool will let the user position and type out
the component's text using TextManip. Positioning of the text will be
influenced by gravity, if any. TextView also defines a response to the
ReshapeTool to let the user edit the text. The subject is actually
replaced (via ReplaceCmd) with a new TextComp subject positioned at the
original TextComp's location but reflecting the edited text.
- TextComp* GetTextComp()
- Return the subject.
TEXTVIEW PROTECTED OPERATIONS¶
- virtual boolean TextChanged()
- Return whether the text in the subject is any different
from that in the view.
TEXTGRAPHIC PUBLIC OPERATIONS¶
- TextGraphic(const char*, int h, Graphic* = nil)
- TextGraphic(const char*, Graphic*)
- Create a TextGraphic, specifying its text, optional
inter-line spacing, and optional graphic from which to obtain default
graphics attributes. TextGraphic stores a copy of the given string
(behavior it inherits from Label). If inter-line spacing is not specified,
then lines will be separated to reflect the font height reported by
PSFont.
- void SetLineHeight(int)
- int GetLineHeight()
- Explicitly set and get the inter-line spacing.
- virtual boolean operator == (TextGraphic&)
- virtual boolean operator != (TextGraphic&)
- Report whether the given graphic contains or does not
contain an identical copy of the text in this
PSTEXT PUBLIC OPERATIONS¶
- PSText(TextComp* = nil)
- Construct a PostScript external representation of the given
subject, if any.
PSTEXT PROTECTED OPERATIONS¶
- const char* Filter(const char* string, int
length)
- Filter excapes embedded control or other special characters
that would cause syntax errors in the PostScript output.
SEE ALSO¶
FontCmd(3U), GraphicComp(3U), GraphicCompTool(3U), GraphicView(3U), Grid(3U),
Label(3U), PostScriptView(3U), ReshapeTool(3U), align(3U), edit(3U),
manips(3U), pspaint(3U)