Andrew's git - gitweb.git/blob - lib/choose

   1# git-gui font chooser
   2# Copyright (C) 2007 Shawn Pearce
   3
   4class choose_font {
   5
   6field w
   7field w_family    ; # UI widget of all known family names
   8field w_example   ; # Example to showcase the chosen font
   9
  10field f_family    ; # Currently chosen family name
  11field f_size      ; # Currently chosen point size
  12
  13field v_family    ; # Name of global variable for family
  14field v_size      ; # Name of global variable for size
  15
  16variable all_families [list]  ; # All fonts known to Tk
  17
  18constructor pick {path title a_family a_size} {
  19        variable all_families
  20
  21        set v_family $a_family
  22        set v_size $a_size
  23
  24        upvar #0 $v_family pv_family
  25        upvar #0 $v_size pv_size
  26
  27        set f_family $pv_family
  28        set f_size $pv_size
  29
  30        make_toplevel top w
  31        wm title $top "[appname] ([reponame]): $title"
  32        wm geometry $top "+[winfo rootx $path]+[winfo rooty $path]"
  33
  34        label $w.header -text $title -font font_uibold
  35        pack $w.header -side top -fill x
  36
  37        frame $w.buttons
  38        button $w.buttons.select \
  39                -text [mc Select] \
  40                -default active \
  41                -command [cb _select]
  42        button $w.buttons.cancel \
  43                -text [mc Cancel] \
  44                -command [list destroy $w]
  45        pack $w.buttons.select -side right
  46        pack $w.buttons.cancel -side right -padx 5
  47        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
  48
  49        frame $w.inner
  50
  51        frame $w.inner.family
  52        label $w.inner.family.l \
  53                -text [mc "Font Family"] \
  54                -anchor w
  55        set w_family $w.inner.family.v
  56        text $w_family \
  57                -background white \
  58                -borderwidth 1 \
  59                -relief sunken \
  60                -cursor $::cursor_ptr \
  61                -wrap none \
  62                -width 30 \
  63                -height 10 \
  64                -yscrollcommand [list $w.inner.family.sby set]
  65        rmsel_tag $w_family
  66        scrollbar $w.inner.family.sby -command [list $w_family yview]
  67        pack $w.inner.family.l -side top -fill x
  68        pack $w.inner.family.sby -side right -fill y
  69        pack $w_family -fill both -expand 1
  70
  71        frame $w.inner.size
  72        label $w.inner.size.l \
  73                -text [mc "Font Size"] \
  74                -anchor w
  75        spinbox $w.inner.size.v \
  76                -textvariable @f_size \
  77                -from 2 -to 80 -increment 1 \
  78                -width 3
  79        bind $w.inner.size.v <FocusIn> {%W selection range 0 end}
  80        pack $w.inner.size.l -fill x -side top
  81        pack $w.inner.size.v -fill x -padx 2
  82
  83        grid configure $w.inner.family $w.inner.size -sticky nsew
  84        grid rowconfigure $w.inner 0 -weight 1
  85        grid columnconfigure $w.inner 0 -weight 1
  86        pack $w.inner -fill both -expand 1 -padx 5 -pady 5
  87
  88        frame $w.example
  89        label $w.example.l \
  90                -text [mc "Font Example"] \
  91                -anchor w
  92        set w_example $w.example.t
  93        text $w_example \
  94                -background white \
  95                -borderwidth 1 \
  96                -relief sunken \
  97                -height 3 \
  98                -width 40
  99        rmsel_tag $w_example
 100        $w_example tag conf example -justify center
 101        $w_example insert end [mc "This is example text.\nIf you like this text, it can be your font."] example
 102        $w_example conf -state disabled
 103        pack $w.example.l -fill x
 104        pack $w_example -fill x
 105        pack $w.example -fill x -padx 5
 106
 107        if {$all_families eq {}} {
 108                set all_families [lsort [font families]]
 109        }
 110
 111        $w_family tag conf pick
 112        $w_family tag bind pick <Button-1> [cb _pick_family %x %y]\;break
 113        foreach f $all_families {
 114                set sel [list pick]
 115                if {$f eq $f_family} {
 116                        lappend sel in_sel
 117                }
 118                $w_family insert end "$f\n" $sel
 119        }
 120        $w_family conf -state disabled
 121        _update $this
 122
 123        trace add variable @f_size write [cb _update]
 124        bind $w <Key-Escape> [list destroy $w]
 125        bind $w <Key-Return> [cb _select]\;break
 126        bind $w <Visibility> "
 127                grab $w
 128                focus $w
 129        "
 130        tkwait window $w
 131}
 132
 133method _select {} {
 134        upvar #0 $v_family pv_family
 135        upvar #0 $v_size pv_size
 136
 137        set pv_family $f_family
 138        set pv_size $f_size
 139
 140        destroy $w
 141}
 142
 143method _pick_family {x y} {
 144        variable all_families
 145
 146        set i [lindex [split [$w_family index @$x,$y] .] 0]
 147        set n [lindex $all_families [expr {$i - 1}]]
 148        if {$n ne {}} {
 149                $w_family tag remove in_sel 0.0 end
 150                $w_family tag add in_sel $i.0 [expr {$i + 1}].0
 151                set f_family $n
 152                _update $this
 153        }
 154}
 155
 156method _update {args} {
 157        variable all_families
 158
 159        set i [lsearch -exact $all_families $f_family]
 160        if {$i < 0} return
 161
 162        $w_example tag conf example -font [list $f_family $f_size]
 163        $w_family see [expr {$i + 1}].0
 164}
 165
 166}