Commit | Line | Data |
---|---|---|
86530b38 AT |
1 | |
2 | ||
3 | sub rulerMkTab { | |
4 | ||
5 | my($c, $x, $y) = @_; | |
6 | ||
7 | return $c->create('polygon', $x, $y, $x+$ruler_info{'size'}, $y+$ruler_info{'size'}, $x-$ruler_info{'size'}, | |
8 | $y+$ruler_info{'size'}); | |
9 | ||
10 | } # end rulerMkTab | |
11 | ||
12 | ||
13 | sub rulerMoveTab { | |
14 | ||
15 | my($c) = @_; | |
16 | ||
17 | return if not defined $c->find('withtag', 'active'); | |
18 | my $e = $c->XEvent; | |
19 | my($x, $y) = ($e->x, $e->y); | |
20 | my $cx = $c->canvasx($x, $ruler_info{'grid'}); | |
21 | my $cy = $c->canvasy($y); | |
22 | if ($cx < $ruler_info{'left'}) { | |
23 | $cx = $ruler_info{'left'}; | |
24 | } | |
25 | if ($cx > $ruler_info{'right'}) { | |
26 | $cx = $ruler_info{'right'}; | |
27 | } | |
28 | if (($cy >= $ruler_info{'top'}) and ($cy <= $ruler_info{'bottom'})) { | |
29 | $cy = $ruler_info{'top'} + 2; | |
30 | $c->itemconfigure('active', @{$ruler_info{'activeStyle'}}); | |
31 | } else { | |
32 | $cy = $cy - $ruler_info{'size'} - 2; | |
33 | $c->itemconfigure('active', @{$ruler_info{'deleteStyle'}}); | |
34 | } | |
35 | $c->move('active', $cx-$ruler_info{'x'}, $cy-$ruler_info{'y'}); | |
36 | $ruler_info{'x'} = $cx; | |
37 | $ruler_info{'y'} = $cy; | |
38 | ||
39 | } # end rulerMoveTab | |
40 | ||
41 | ||
42 | sub rulerNewTab { | |
43 | ||
44 | my($c) = @_; | |
45 | ||
46 | my $e = $c->XEvent; | |
47 | my($x, $y) = ($e->x, $e->y); | |
48 | $c->addtag('active', 'withtag', rulerMkTab($c, $x, $y)); | |
49 | $c->addtag('tab', 'withtag', 'active'); | |
50 | $ruler_info{'x'} = $x; | |
51 | $ruler_info{'y'} = $y; | |
52 | rulerMoveTab($c, $e); | |
53 | ||
54 | } # end rulerNewTab | |
55 | ||
56 | ||
57 | sub rulerReleaseTab { | |
58 | ||
59 | my($c) = @_; | |
60 | ||
61 | return if not defined $c->find('withtag', 'active'); | |
62 | if ($ruler_info{'y'} != $ruler_info{'top'} + 2) { | |
63 | $c->delete('active'); | |
64 | } else { | |
65 | $c->itemconfigure('active', @{$ruler_info{'normalStyle'}}); | |
66 | $c->dtag('active'); | |
67 | } | |
68 | ||
69 | } # end rulerReleaseTab | |
70 | ||
71 | ||
72 | sub rulerSelectTab { | |
73 | ||
74 | my($c) = @_; | |
75 | ||
76 | my $e = $c->XEvent; | |
77 | my($x, $y) = ($e->x, $e->y); | |
78 | $ruler_info{'x'} = $c->canvasx($x, $ruler_info{'grid'}); | |
79 | $ruler_info{'y'} = $ruler_info{'top'} + 2; | |
80 | $c->addtag('active', 'withtag', 'current'); | |
81 | $c->itemconfigure('active', @{$ruler_info{'activeStyle'}}); | |
82 | $c->raise('active'); | |
83 | ||
84 | } # end rulerSelectTab | |
85 | ||
86 | sub mkRuler { | |
87 | ||
88 | # Create a canvas demonstration consisting of a ruler displays a ruler with tab stops that can be set individually. | |
89 | ||
90 | $mkRuler->destroy if Exists($mkRuler); | |
91 | $mkRuler = $top->Toplevel(); | |
92 | my $w = $mkRuler; | |
93 | dpos $w; | |
94 | $w->title('Ruler Demonstration'); | |
95 | $w->iconname('Ruler'); | |
96 | ||
97 | my $w_msg = $w->Label(-font => '-Adobe-Times-Medium-R-Normal--*-180-*-*-*-*-*-*', -wraplength => '13c', | |
98 | -justify => 'left', -text => 'This canvas widget shows a mock-up of a ruler. You can create tab ' . | |
99 | 'stops by dragging them out of the well to the right of the ruler. You can also drag ' . | |
100 | 'existing tab stops. If you drag a tab stop far enough up or down so that it turns dim, it ' . | |
101 | 'will be deleted when you release the mouse button.'); | |
102 | my $c = $w->Canvas(-width => '14.8c', -height => '2.5c'); | |
103 | my $w_ok = $w->Button(-text => 'OK', -width => 8, -command => ['destroy', $w]); | |
104 | $w_msg->pack(-side => 'top', -fill => 'x'); | |
105 | $c->pack(-side => 'top', -fill => 'x'); | |
106 | $w_ok->pack(-side => 'bottom', -pady => '5'); | |
107 | ||
108 | $ruler_info{'grid'} = '.25c'; | |
109 | $ruler_info{'left'} = $c->fpixels('1c'); | |
110 | $ruler_info{'right'} = $c->fpixels('13c'); | |
111 | $ruler_info{'top'} = $c->fpixels('1c'); | |
112 | $ruler_info{'bottom'} = $c->fpixels('1.5c'); | |
113 | $ruler_info{'size'} = $c->fpixels('.2c'); | |
114 | $ruler_info{'normalStyle'} = [-fill => 'black']; | |
115 | if ($mkRuler->depth > 1) { | |
116 | $ruler_info{'activeStyle'} = [-fill => 'red', -stipple => undef]; | |
117 | $ruler_info{'deleteStyle'} = [-fill => 'red', -stipple => '@'.Tk->findINC('demos/images/grey.25')]; | |
118 | } else { | |
119 | $ruler_info{'activeStyle'} = [-fill => 'black', -stipple => undef]; | |
120 | $ruler_info{'deleteStyle'} = [-fill => 'black', -stipple => '@'.Tk->findINC('demos/images/grey.25')]; | |
121 | } | |
122 | ||
123 | $c->create(qw(line 1c 0.5c 1c 1c 13c 1c 13c 0.5c -width 1)); | |
124 | for ($i = 0; $i < 12; $i++) { | |
125 | my $x = $i+1; | |
126 | $c->create('line', "$x.c", '1c', "$x.c", '0.6c', -width => 1); | |
127 | $c->create('line', "$x.25c", '1c', "$x.25c", '0.8c', -width => 1); | |
128 | $c->create('line', "$x.5c", '1c', "$x.5c", '0.7c', -width => 1); | |
129 | $c->create('line', "$x.75c", '1c', "$x.75c", '0.8c', -width => 1); | |
130 | $c->create('text', "$x.15c", '.75c',-text => $i, -anchor => 'sw'); | |
131 | } | |
132 | $c->addtag('well', 'withtag', $c->create(qw(rect 13.2c 1c 13.8c 0.5c -outline black -fill), ($c->configure(-bg))[4])); | |
133 | $c->addtag('well', 'withtag', rulerMkTab($c, $c->pixels('13.5c'), $c->pixels('.65c'))); | |
134 | ||
135 | $c->bind('well', '<1>' => sub{rulerNewTab(@_)}); | |
136 | $c->bind('tab', '<1>' => sub {rulerSelectTab(@_)}); | |
137 | $c->Tk::bind('<B1-Motion>' => sub {rulerMoveTab(@_)}); | |
138 | $c->Tk::bind('<Any-ButtonRelease-1>', sub {rulerReleaseTab(@_)}); | |
139 | ||
140 | } # end mkRuler | |
141 | ||
142 | 1; |