diff options
Diffstat (limited to 'tk8.6/library/demos/items.tcl')
| -rw-r--r-- | tk8.6/library/demos/items.tcl | 291 |
1 files changed, 0 insertions, 291 deletions
diff --git a/tk8.6/library/demos/items.tcl b/tk8.6/library/demos/items.tcl deleted file mode 100644 index 000e4cb..0000000 --- a/tk8.6/library/demos/items.tcl +++ /dev/null @@ -1,291 +0,0 @@ -# items.tcl -- -# -# This demonstration script creates a canvas that displays the -# canvas item types. - -if {![info exists widgetDemo]} { - error "This script should be run from the \"widget\" demo." -} - -package require Tk - -set w .items -catch {destroy $w} -toplevel $w -wm title $w "Canvas Item Demonstration" -wm iconname $w "Items" -positionWindow $w -set c $w.frame.c - -label $w.msg -font $font -wraplength 5i -justify left -text "This window contains a canvas widget with examples of the various kinds of items supported by canvases. The following operations are supported:\n Button-1 drag:\tmoves item under pointer.\n Button-2 drag:\trepositions view.\n Button-3 drag:\tstrokes out area.\n Ctrl+f:\t\tprints items under area." -pack $w.msg -side top - -## See Code / Dismiss buttons -set btns [addSeeDismiss $w.buttons $w] -pack $btns -side bottom -fill x - -frame $w.frame -pack $w.frame -side top -fill both -expand yes - -canvas $c -scrollregion {0c 0c 30c 24c} -width 15c -height 10c \ - -relief sunken -borderwidth 2 \ - -xscrollcommand "$w.frame.hscroll set" \ - -yscrollcommand "$w.frame.vscroll set" -ttk::scrollbar $w.frame.vscroll -command "$c yview" -ttk::scrollbar $w.frame.hscroll -orient horiz -command "$c xview" - -grid $c -in $w.frame \ - -row 0 -column 0 -rowspan 1 -columnspan 1 -sticky news -grid $w.frame.vscroll \ - -row 0 -column 1 -rowspan 1 -columnspan 1 -sticky news -grid $w.frame.hscroll \ - -row 1 -column 0 -rowspan 1 -columnspan 1 -sticky news -grid rowconfig $w.frame 0 -weight 1 -minsize 0 -grid columnconfig $w.frame 0 -weight 1 -minsize 0 - -# Display a 3x3 rectangular grid. - -$c create rect 0c 0c 30c 24c -width 2 -$c create line 0c 8c 30c 8c -width 2 -$c create line 0c 16c 30c 16c -width 2 -$c create line 10c 0c 10c 24c -width 2 -$c create line 20c 0c 20c 24c -width 2 - -set font1 {Helvetica 12} -set font2 {Helvetica 24 bold} -if {[winfo depth $c] > 1} { - set blue DeepSkyBlue3 - set red red - set bisque bisque3 - set green SeaGreen3 -} else { - set blue black - set red black - set bisque black - set green black -} - -# Set up demos within each of the areas of the grid. - -$c create text 5c .2c -text Lines -anchor n -$c create line 1c 1c 3c 1c 1c 4c 3c 4c -width 2m -fill $blue \ - -cap butt -join miter -tags item -$c create line 4.67c 1c 4.67c 4c -arrow last -tags item -$c create line 6.33c 1c 6.33c 4c -arrow both -tags item -$c create line 5c 6c 9c 6c 9c 1c 8c 1c 8c 4.8c 8.8c 4.8c 8.8c 1.2c \ - 8.2c 1.2c 8.2c 4.6c 8.6c 4.6c 8.6c 1.4c 8.4c 1.4c 8.4c 4.4c \ - -width 3 -fill $red -tags item -# Main widget program sets variable tk_demoDirectory -$c create line 1c 5c 7c 5c 7c 7c 9c 7c -width .5c \ - -stipple @[file join $tk_demoDirectory images gray25.xbm] \ - -arrow both -arrowshape {15 15 7} -tags item -$c create line 1c 7c 1.75c 5.8c 2.5c 7c 3.25c 5.8c 4c 7c -width .5c \ - -cap round -join round -tags item - -$c create text 15c .2c -text "Curves (smoothed lines)" -anchor n -$c create line 11c 4c 11.5c 1c 13.5c 1c 14c 4c -smooth on \ - -fill $blue -tags item -$c create line 15.5c 1c 19.5c 1.5c 15.5c 4.5c 19.5c 4c -smooth on \ - -arrow both -width 3 -tags item -$c create line 12c 6c 13.5c 4.5c 16.5c 7.5c 18c 6c \ - 16.5c 4.5c 13.5c 7.5c 12c 6c -smooth on -width 3m -cap round \ - -stipple @[file join $tk_demoDirectory images gray25.xbm] \ - -fill $red -tags item - -$c create text 25c .2c -text Polygons -anchor n -$c create polygon 21c 1.0c 22.5c 1.75c 24c 1.0c 23.25c 2.5c \ - 24c 4.0c 22.5c 3.25c 21c 4.0c 21.75c 2.5c -fill $green \ - -outline black -width 4 -tags item -$c create polygon 25c 4c 25c 4c 25c 1c 26c 1c 27c 4c 28c 1c \ - 29c 1c 29c 4c 29c 4c -fill $red -smooth on -tags item -$c create polygon 22c 4.5c 25c 4.5c 25c 6.75c 28c 6.75c \ - 28c 5.25c 24c 5.25c 24c 6.0c 26c 6c 26c 7.5c 22c 7.5c \ - -stipple @[file join $tk_demoDirectory images gray25.xbm] \ - -outline black -tags item - -$c create text 5c 8.2c -text Rectangles -anchor n -$c create rectangle 1c 9.5c 4c 12.5c -outline $red -width 3m -tags item -$c create rectangle 0.5c 13.5c 4.5c 15.5c -fill $green -tags item -$c create rectangle 6c 10c 9c 15c -outline {} \ - -stipple @[file join $tk_demoDirectory images gray25.xbm] \ - -fill $blue -tags item - -$c create text 15c 8.2c -text Ovals -anchor n -$c create oval 11c 9.5c 14c 12.5c -outline $red -width 3m -tags item -$c create oval 10.5c 13.5c 14.5c 15.5c -fill $green -tags item -$c create oval 16c 10c 19c 15c -outline {} \ - -stipple @[file join $tk_demoDirectory images gray25.xbm] \ - -fill $blue -tags item - -$c create text 25c 8.2c -text Text -anchor n -$c create rectangle 22.4c 8.9c 22.6c 9.1c -$c create text 22.5c 9c -anchor n -font $font1 -width 4c \ - -text "A short string of text, word-wrapped, justified left, and anchored north (at the top). The rectangles show the anchor points for each piece of text." -tags item -$c create rectangle 25.4c 10.9c 25.6c 11.1c -$c create text 25.5c 11c -anchor w -font $font1 -fill $blue \ - -text "Several lines,\n each centered\nindividually,\nand all anchored\nat the left edge." \ - -justify center -tags item -$c create rectangle 24.9c 13.9c 25.1c 14.1c -$c create text 25c 14c -font $font2 -anchor c -fill $red -angle 15 \ - -text "Angled characters" -tags item - -$c create text 5c 16.2c -text Arcs -anchor n -$c create arc 0.5c 17c 7c 20c -fill $green -outline black \ - -start 45 -extent 270 -style pieslice -tags item -$c create arc 6.5c 17c 9.5c 20c -width 4m -style arc \ - -outline $blue -start -135 -extent 270 -tags item \ - -outlinestipple @[file join $tk_demoDirectory images gray25.xbm] -$c create arc 0.5c 20c 9.5c 24c -width 4m -style pieslice \ - -fill {} -outline $red -start 225 -extent -90 -tags item -$c create arc 5.5c 20.5c 9.5c 23.5c -width 4m -style chord \ - -fill $blue -outline {} -start 45 -extent 270 -tags item - -image create photo items.ousterhout \ - -file [file join $tk_demoDirectory images ouster.png] -image create photo items.ousterhout.active -format "png -alpha 0.5" \ - -file [file join $tk_demoDirectory images ouster.png] -$c create text 15c 16.2c -text "Bitmaps and Images" -anchor n -$c create image 13c 20c -tags item -image items.ousterhout \ - -activeimage items.ousterhout.active -$c create bitmap 17c 18.5c -tags item \ - -bitmap @[file join $tk_demoDirectory images noletter.xbm] -$c create bitmap 17c 21.5c -tags item \ - -bitmap @[file join $tk_demoDirectory images letters.xbm] - -$c create text 25c 16.2c -text Windows -anchor n -button $c.button -text "Press Me" -command "butPress $c $red" -$c create window 21c 18c -window $c.button -anchor nw -tags item -entry $c.entry -width 20 -relief sunken -$c.entry insert end "Edit this text" -$c create window 21c 21c -window $c.entry -anchor nw -tags item -scale $c.scale -from 0 -to 100 -length 6c -sliderlength .4c \ - -width .5c -tickinterval 0 -$c create window 28.5c 17.5c -window $c.scale -anchor n -tags item -$c create text 21c 17.9c -text Button: -anchor sw -$c create text 21c 20.9c -text Entry: -anchor sw -$c create text 28.5c 17.4c -text Scale: -anchor s - -# Set up event bindings for canvas: - -$c bind item <Any-Enter> "itemEnter $c" -$c bind item <Any-Leave> "itemLeave $c" -bind $c <2> "$c scan mark %x %y" -bind $c <B2-Motion> "$c scan dragto %x %y" -bind $c <3> "itemMark $c %x %y" -bind $c <B3-Motion> "itemStroke $c %x %y" -bind $c <<NextChar>> "itemsUnderArea $c" -bind $c <1> "itemStartDrag $c %x %y" -bind $c <B1-Motion> "itemDrag $c %x %y" - -# Utility procedures for highlighting the item under the pointer: - -proc itemEnter {c} { - global restoreCmd - - if {[winfo depth $c] == 1} { - set restoreCmd {} - return - } - set type [$c type current] - if {$type == "window" || $type == "image"} { - set restoreCmd {} - return - } elseif {$type == "bitmap"} { - set bg [lindex [$c itemconf current -background] 4] - set restoreCmd [list $c itemconfig current -background $bg] - $c itemconfig current -background SteelBlue2 - return - } elseif {$type == "image"} { - set restoreCmd [list $c itemconfig current -state normal] - $c itemconfig current -state active - return - } - set fill [lindex [$c itemconfig current -fill] 4] - if {(($type == "rectangle") || ($type == "oval") || ($type == "arc")) - && ($fill == "")} { - set outline [lindex [$c itemconfig current -outline] 4] - set restoreCmd "$c itemconfig current -outline $outline" - $c itemconfig current -outline SteelBlue2 - } else { - set restoreCmd "$c itemconfig current -fill $fill" - $c itemconfig current -fill SteelBlue2 - } -} - -proc itemLeave {c} { - global restoreCmd - - eval $restoreCmd -} - -# Utility procedures for stroking out a rectangle and printing what's -# underneath the rectangle's area. - -proc itemMark {c x y} { - global areaX1 areaY1 - set areaX1 [$c canvasx $x] - set areaY1 [$c canvasy $y] - $c delete area -} - -proc itemStroke {c x y} { - global areaX1 areaY1 areaX2 areaY2 - set x [$c canvasx $x] - set y [$c canvasy $y] - if {($areaX1 != $x) && ($areaY1 != $y)} { - $c delete area - $c addtag area withtag [$c create rect $areaX1 $areaY1 $x $y \ - -outline black] - set areaX2 $x - set areaY2 $y - } -} - -proc itemsUnderArea {c} { - global areaX1 areaY1 areaX2 areaY2 - set area [$c find withtag area] - set items "" - foreach i [$c find enclosed $areaX1 $areaY1 $areaX2 $areaY2] { - if {[lsearch [$c gettags $i] item] != -1} { - lappend items $i - } - } - puts stdout "Items enclosed by area: $items" - set items "" - foreach i [$c find overlapping $areaX1 $areaY1 $areaX2 $areaY2] { - if {[lsearch [$c gettags $i] item] != -1} { - lappend items $i - } - } - puts stdout "Items overlapping area: $items" -} - -set areaX1 0 -set areaY1 0 -set areaX2 0 -set areaY2 0 - -# Utility procedures to support dragging of items. - -proc itemStartDrag {c x y} { - global lastX lastY - set lastX [$c canvasx $x] - set lastY [$c canvasy $y] -} - -proc itemDrag {c x y} { - global lastX lastY - set x [$c canvasx $x] - set y [$c canvasy $y] - $c move current [expr {$x-$lastX}] [expr {$y-$lastY}] - set lastX $x - set lastY $y -} - -# Procedure that's invoked when the button embedded in the canvas -# is invoked. - -proc butPress {w color} { - set i [$w create text 25c 18.1c -text "Oooohhh!!" -fill $color -anchor n] - after 500 "$w delete $i" -} |