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Diffstat (limited to 'library/ttk/spinbox.tcl')
| -rw-r--r-- | library/ttk/spinbox.tcl | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/library/ttk/spinbox.tcl b/library/ttk/spinbox.tcl new file mode 100644 index 0000000..a717379 --- /dev/null +++ b/library/ttk/spinbox.tcl @@ -0,0 +1,175 @@ +# +# $Id: spinbox.tcl,v 1.3.2.2 2010/08/26 02:06:10 hobbs Exp $ +# +# ttk::spinbox bindings +# + +namespace eval ttk::spinbox { } + +### Spinbox bindings. +# +# Duplicate the Entry bindings, override if needed: +# + +ttk::copyBindings TEntry TSpinbox + +bind TSpinbox <Motion> { ttk::spinbox::Motion %W %x %y } +bind TSpinbox <ButtonPress-1> { ttk::spinbox::Press %W %x %y } +bind TSpinbox <ButtonRelease-1> { ttk::spinbox::Release %W } +bind TSpinbox <Double-Button-1> { ttk::spinbox::DoubleClick %W %x %y } +bind TSpinbox <Triple-Button-1> {} ;# disable TEntry triple-click + +bind TSpinbox <KeyPress-Up> { event generate %W <<Increment>> } +bind TSpinbox <KeyPress-Down> { event generate %W <<Decrement>> } + +bind TSpinbox <<Increment>> { ttk::spinbox::Spin %W +1 } +bind TSpinbox <<Decrement>> { ttk::spinbox::Spin %W -1 } + +ttk::bindMouseWheel TSpinbox [list ttk::spinbox::MouseWheel %W] + +## Motion -- +# Sets cursor. +# +proc ttk::spinbox::Motion {w x y} { + if { [$w identify $x $y] eq "textarea" + && [$w instate {!readonly !disabled}] + } { + ttk::setCursor $w text + } else { + ttk::setCursor $w "" + } +} + +## Press -- +# +proc ttk::spinbox::Press {w x y} { + if {[$w instate disabled]} { return } + focus $w + switch -glob -- [$w identify $x $y] { + *textarea { ttk::entry::Press $w $x } + *rightarrow - + *uparrow { ttk::Repeatedly event generate $w <<Increment>> } + *leftarrow - + *downarrow { ttk::Repeatedly event generate $w <<Decrement>> } + *spinbutton { + if {$y * 2 >= [winfo height $w]} { + set event <<Decrement>> + } else { + set event <<Increment>> + } + ttk::Repeatedly event generate $w $event + } + } +} + +## DoubleClick -- +# Select all if over the text area; otherwise same as Press. +# +proc ttk::spinbox::DoubleClick {w x y} { + if {[$w instate disabled]} { return } + + switch -glob -- [$w identify $x $y] { + *textarea { SelectAll $w } + * { Press $w $x $y } + } +} + +proc ttk::spinbox::Release {w} { + ttk::CancelRepeat +} + +## MouseWheel -- +# Mousewheel callback. Turn these into <<Increment>> (-1, up) +# or <<Decrement> (+1, down) events. +# +proc ttk::spinbox::MouseWheel {w dir} { + if {$dir < 0} { + event generate $w <<Increment>> + } else { + event generate $w <<Decrement>> + } +} + +## SelectAll -- +# Select widget contents. +# +proc ttk::spinbox::SelectAll {w} { + $w selection range 0 end + $w icursor end +} + +## Limit -- +# Limit $v to lie between $min and $max +# +proc ttk::spinbox::Limit {v min max} { + if {$v < $min} { return $min } + if {$v > $max} { return $max } + return $v +} + +## Wrap -- +# Adjust $v to lie between $min and $max, wrapping if out of bounds. +# +proc ttk::spinbox::Wrap {v min max} { + if {$v < $min} { return $max } + if {$v > $max} { return $min } + return $v +} + +## Adjust -- +# Limit or wrap spinbox value depending on -wrap. +# +proc ttk::spinbox::Adjust {w v min max} { + if {[$w cget -wrap]} { + return [Wrap $v $min $max] + } else { + return [Limit $v $min $max] + } +} + +## Spin -- +# Handle <<Increment>> and <<Decrement>> events. +# If -values is specified, cycle through the list. +# Otherwise cycle through numeric range based on +# -from, -to, and -increment. +# +proc ttk::spinbox::Spin {w dir} { + set nvalues [llength [set values [$w cget -values]]] + set value [$w get] + if {$nvalues} { + set current [lsearch -exact $values $value] + set index [Adjust $w [expr {$current + $dir}] 0 [expr {$nvalues - 1}]] + $w set [lindex $values $index] + } else { + if {[catch { + set v [expr {[scan [$w get] %f] + $dir * [$w cget -increment]}] + }]} { + set v [$w cget -from] + } + $w set [FormatValue $w [Adjust $w $v [$w cget -from] [$w cget -to]]] + } + SelectAll $w + uplevel #0 [$w cget -command] +} + +## FormatValue -- +# Reformat numeric value based on -format. +# +proc ttk::spinbox::FormatValue {w val} { + set fmt [$w cget -format] + if {$fmt eq ""} { + # Try to guess a suitable -format based on -increment. + set delta [expr {abs([$w cget -increment])}] + if {0 < $delta && $delta < 1} { + # NB: This guesses wrong if -increment has more than 1 + # significant digit itself, e.g., -increment 0.25 + set nsd [expr {int(ceil(-log10($delta)))}] + set fmt "%.${nsd}f" + } else { + set fmt "%.0f" + } + } + return [format $fmt $val] +} + +#*EOF* |