TextComp3

Usage

Overview

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.