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| # -*-mode: tcl; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*- | |
| # | |
| # $Id: EditGrid.tcl,v 1.3 2001/12/09 05:31:07 idiscovery Exp $ | |
| # | |
| # Tix Demostration Program | |
| # | |
| # This sample program is structured in such a way so that it can be | |
| # executed from the Tix demo program "widget": it must have a | |
| # procedure called "RunSample". It should also have the "if" statment | |
| # at the end of this file so that it can be run as a standalone | |
| # program using tixwish. | |
| # Demonstrates the use of editable entries in a Grid widget. | |
| # | |
| proc RunSample {w} { | |
| global editgrid | |
| wm title $w "Doe Inc. Performance" | |
| wm geometry $w 640x300 | |
| label $w.lab -justify left -text \ | |
| "The left column is calculated automatically. To calculate the right column, | |
| press the \"Calculate\" button" | |
| pack $w.lab -side top -anchor c -padx 3 -pady 3 | |
| # Create the buttons | |
| # | |
| set f [frame $w.f -relief flat] | |
| pack $f -side right -fill y | |
| set add [button $f.add -text "Add Row" -width 9 \ | |
| -command "EditGrid_addRow"] | |
| set edit [button $f.edit -text "Edit" -width 9 \ | |
| -command "EditGrid_edit"] | |
| set cal [button $f.cal -text "Calculate" -width 9 \ | |
| -command "EditGrid_calculate"] | |
| set close [button $f.close -text "Close" -width 9 \ | |
| -command "destroy $w"] | |
| pack $add -side top -padx 10 | |
| pack $edit -side top -padx 10 | |
| pack $cal -side top -padx 10 -pady 2 | |
| pack $close -side bottom -padx 10 | |
| # Create the grid and set options to make it editable. | |
| # | |
| tixScrolledGrid $w.g -bd 0 | |
| pack $w.g -expand yes -fill both -padx 3 -pady 3 | |
| set grid [$w.g subwidget grid] | |
| $grid config \ | |
| -formatcmd "EditGrid_format $grid" \ | |
| -editnotifycmd "EditGrid_editNotify" \ | |
| -editdonecmd "EditGrid_editDone" \ | |
| -selectunit cell \ | |
| -selectmode single | |
| # Insert some initial data | |
| # | |
| $grid set 0 1 -text "City #1" | |
| $grid set 0 2 -text "City #2" | |
| $grid set 0 3 -text "City #3" | |
| $grid set 0 5 -text "Combined" | |
| $grid set 2 0 -text "Population" | |
| $grid set 4 0 -text "Avg. Income" | |
| $grid set 2 1 -text 125 | |
| $grid set 2 2 -text 81 | |
| $grid set 2 3 -text 724 | |
| $grid set 4 1 -text 24432.12 | |
| $grid set 4 2 -text 18290.24 | |
| $grid set 4 3 -text 18906.34 | |
| # Global data used by other EditGrid_ procedures. | |
| # | |
| set editgrid(g) $grid | |
| set editgrid(top) 1 | |
| set editgrid(bot) 3 | |
| set editgrid(result) 5 | |
| EditGrid_calPop | |
| EditGrid_calIncome | |
| } | |
| # EditGrid_edit -- | |
| # | |
| # Prompts the user to edit a cell. | |
| # | |
| proc EditGrid_edit {} { | |
| global editgrid | |
| set grid $editgrid(g) | |
| set ent [$grid anchor get] | |
| if [string comp $ent ""] { | |
| $grid edit set [lindex $ent 0] [lindex $ent 1] | |
| } | |
| } | |
| # EditGrid_addRow -- | |
| # | |
| # Adds a new row to the table. | |
| # | |
| proc EditGrid_addRow {} { | |
| global editgrid | |
| set grid $editgrid(g) | |
| $grid edit apply | |
| $grid move row $editgrid(result) $editgrid(result) 1 | |
| incr editgrid(bot) | |
| set editgrid(result) [expr $editgrid(bot) + 2] | |
| $grid set 0 $editgrid(bot) -text "City #$editgrid(bot)" | |
| $grid set 2 $editgrid(bot) -text 0 | |
| $grid set 4 $editgrid(bot) -text 0.0 | |
| EditGrid_calPop | |
| EditGrid_calIncome | |
| } | |
| # EditGrid_calPop -- | |
| # | |
| # Calculates the total population | |
| # | |
| proc EditGrid_calPop {} { | |
| global editgrid | |
| set grid $editgrid(g) | |
| set pop 0 | |
| for {set i $editgrid(top)} {$i <= $editgrid(bot)} {incr i} { | |
| incr pop [$grid entrycget 2 $i -text] | |
| } | |
| $grid set 2 $editgrid(result) -text $pop | |
| } | |
| # EditGrid_calIncome -- | |
| # | |
| # Calculates the average income. | |
| # | |
| proc EditGrid_calIncome {} { | |
| global editgrid | |
| set grid $editgrid(g) | |
| set income 0 | |
| set total_pop 0 | |
| for {set i $editgrid(top)} {$i <= $editgrid(bot)} {incr i} { | |
| set pop [$grid entrycget 2 $i -text] | |
| set inc [$grid entrycget 4 $i -text] | |
| set income [expr $income + $pop.0 * $inc] | |
| incr total_pop $pop | |
| } | |
| $grid set 4 $editgrid(result) -text [expr $income/$total_pop] | |
| } | |
| # EditGrid_calculate -- | |
| # | |
| # Recalculates both columns. | |
| # | |
| proc EditGrid_calculate {} { | |
| global editgrid | |
| set grid $editgrid(g) | |
| $grid edit apply | |
| EditGrid_calIncome | |
| } | |
| # EditGrid_editNotify -- | |
| # | |
| # Returns true if an entry can be edited. | |
| # | |
| proc EditGrid_editNotify {x y} { | |
| global editgrid | |
| set grid $editgrid(g) | |
| if {$x == 2 || $x == 4} { | |
| if {$y >= $editgrid(top) && $y <= $editgrid(bot)} { | |
| set editgrid(oldValue) [$grid entrycget $x $y -text] | |
| return 1 | |
| } | |
| } | |
| return 0 | |
| } | |
| # EditGrid_editDone -- | |
| # | |
| # Gets called when the user is done editing an entry. | |
| # | |
| proc EditGrid_editDone {x y} { | |
| global editgrid | |
| set grid $editgrid(g) | |
| if {$x == 2} { | |
| set pop [$grid entrycget $x $y -text] | |
| if [catch { | |
| format %d $pop | |
| }] { | |
| $grid entryconfig $x $y -text $editgrid(oldValue) | |
| tk_dialog .editGridWarn "" \ | |
| "$pop is not an valid integer. Try again" \ | |
| warning 0 Ok | |
| } else { | |
| $grid entryconfig 4 $editgrid(result) -text "-" | |
| EditGrid_calPop | |
| } | |
| } else { | |
| set income [$grid entrycget $x $y -text] | |
| if [catch { | |
| format %f $income | |
| }] { | |
| $grid entryconfig $x $y -text $editgrid(oldValue) | |
| tk_dialog .editGridWarn "" \ | |
| "$income is not an valid floating number. Try again" \ | |
| warning 0 Ok | |
| } else { | |
| $grid entryconfig 4 $editgrid(result) -text "-" | |
| } | |
| } | |
| } | |
| # EditGrid_format -- | |
| # | |
| # This command is called whenever the background of the grid | |
| # needs to be reformatted. The x1, y1, x2, y2 sprcifies the four | |
| # corners of the area that needs to be reformatted. | |
| # | |
| proc EditGrid_format {w area x1 y1 x2 y2} { | |
| global editgrid | |
| set bg(s-margin) gray65 | |
| set bg(x-margin) gray65 | |
| set bg(y-margin) gray65 | |
| set bg(main) gray20 | |
| case $area { | |
| main { | |
| foreach col {2 4} { | |
| $w format border $col 1 $col $editgrid(bot) \ | |
| -relief flat -filled 1 -yon 1 -yoff 1\ | |
| -bd 0 -bg #b0b0f0 -selectbackground #a0b0ff | |
| $w format border $col 2 $col $editgrid(bot) \ | |
| -relief flat -filled 1 -yon 1 -yoff 1\ | |
| -bd 0 -bg #80b080 -selectbackground #80b0ff | |
| } | |
| $w format grid $x1 $y1 $x2 $y2 \ | |
| -relief raised -bd 1 -bordercolor $bg($area) -filled 0 -bg red\ | |
| -xon 1 -yon 1 -xoff 0 -yoff 0 -anchor se | |
| } | |
| y-margin { | |
| $w format border $x1 $y1 $x2 $y2 \ | |
| -fill 1 -relief raised -bd 1 -bg $bg($area) \ | |
| -selectbackground gray80 | |
| } | |
| default { | |
| $w format border $x1 $y1 $x2 $y2 \ | |
| -filled 1 \ | |
| -relief raised -bd 1 -bg $bg($area) \ | |
| -selectbackground gray80 | |
| } | |
| } | |
| # case $area { | |
| # {main y-margin} { | |
| # set y [expr $editgrid(bot) + 1] | |
| # $w format border 0 $y 100 $y -bg black -filled 1 -bd 0 | |
| # } | |
| # } | |
| } | |
| if {![info exists tix_demo_running]} { | |
| wm withdraw . | |
| set w .demo | |
| toplevel $w; wm transient $w "" | |
| RunSample $w | |
| bind $w <Destroy> exit | |
| } | |