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- # mkStyles w
- #
- # Create a top-level window with a text widget that demonstrates the
- # various display styles that are available in texts.
- #
- # Arguments:
- # w - Name to use for new top-level window.
-
- proc mkStyles {{w .styles}} {
- catch {destroy $w}
- toplevel $w
- dpos $w
- wm title $w "Text Demonstration - Display Styles"
- wm iconname $w "Text Styles"
-
- button $w.ok -text OK -command "destroy $w"
- text $w.t -relief raised -bd 2 -yscrollcommand "$w.s set" -setgrid true \
- -width 70 -height 28
- scrollbar $w.s -relief flat -command "$w.t yview"
- pack $w.ok -side bottom -fill x
- pack $w.s -side right -fill y
- pack $w.t -expand yes -fill both
-
- # Set up display styles
-
- $w.t tag configure bold -font -Adobe-Courier-Bold-O-Normal-*-120-*
- $w.t tag configure big -font -Adobe-Courier-Bold-R-Normal-*-140-*
- $w.t tag configure verybig -font -Adobe-Helvetica-Bold-R-Normal-*-240-*
- if {[tk colormodel $w] == "color"} {
- $w.t tag configure color1 -background #eed5b7
- $w.t tag configure color2 -foreground red
- $w.t tag configure raised -background #eed5b7 -relief raised \
- -borderwidth 1
- $w.t tag configure sunken -background #eed5b7 -relief sunken \
- -borderwidth 1
- } else {
- $w.t tag configure color1 -background black -foreground white
- $w.t tag configure color2 -background black -foreground white
- $w.t tag configure raised -background white -relief raised \
- -borderwidth 1
- $w.t tag configure sunken -background white -relief sunken \
- -borderwidth 1
- }
- $w.t tag configure bgstipple -background black -borderwidth 0 \
- -bgstipple gray25
- $w.t tag configure fgstipple -fgstipple gray50
- $w.t tag configure underline -underline on
-
- $w.t insert 0.0 {\
- Text widgets like this one allow you to display information in a
- variety of styles. Display styles are controlled using a mechanism
- called }
- insertWithTags $w.t tags bold
- insertWithTags $w.t {. Tags are just textual names that you can apply to one
- or more ranges of characters within a text widget. You can configure
- tags with various display styles. If you do this, then the tagged
- characters will be displayed with the styles you chose. The
- available display styles are:
- }
- insertWithTags $w.t {
- 1. Font.} big
- insertWithTags $w.t { You can choose any X font, }
- insertWithTags $w.t large verybig
- insertWithTags $w.t { or }
- insertWithTags $w.t {small.
- }
- insertWithTags $w.t {
- 2. Color.} big
- insertWithTags $w.t { You can change either the }
- insertWithTags $w.t background color1
- insertWithTags $w.t { or }
- insertWithTags $w.t foreground color2
- insertWithTags $w.t {
- color, or }
- insertWithTags $w.t both color1 color2
- insertWithTags $w.t {.
- }
- insertWithTags $w.t {
- 3. Stippling.} big
- insertWithTags $w.t { You can cause either the }
- insertWithTags $w.t background bgstipple
- insertWithTags $w.t { or }
- insertWithTags $w.t foreground fgstipple
- insertWithTags $w.t {
- information to be drawn with a stipple fill instead of a solid fill.
- }
- insertWithTags $w.t {
- 4. Underlining.} big
- insertWithTags $w.t { You can }
- insertWithTags $w.t underline underline
- insertWithTags $w.t { ranges of text.
- }
- insertWithTags $w.t {
- 5. 3-D effects.} big
- insertWithTags $w.t { You can arrange for the background to be drawn
- with a border that makes characters appear either }
- insertWithTags $w.t raised raised
- insertWithTags $w.t { or }
- insertWithTags $w.t sunken sunken
- insertWithTags $w.t {.
- }
- insertWithTags $w.t {
- 6. Yet to come.} big
- insertWithTags $w.t { More display effects will be coming soon, such
- as the ability to change line justification and perhaps line spacing.}
-
- $w.t mark set insert 0.0
- bind $w <Any-Enter> "focus $w.t"
- }
-
- # The procedure below inserts text into a given text widget and
- # applies one or more tags to that text. The arguments are:
- #
- # w Window in which to insert
- # text Text to insert (it's inserted at the "insert" mark)
- # args One or more tags to apply to text. If this is empty
- # then all tags are removed from the text.
-
- proc insertWithTags {w text args} {
- set start [$w index insert]
- $w insert insert $text
- foreach tag [$w tag names $start] {
- $w tag remove $tag $start insert
- }
- foreach i $args {
- $w tag add $i $start insert
- }
- }
-