From c51cf9b5a63bde35d57f8e69072a41fe76fbfd6c Mon Sep 17 00:00:00 2001
From: mertz
Date: Tue, 19 Nov 2002 09:56:00 +0000
Subject: passage � la nouvelle m�thode contour (addhole). diverses
 simplifaction/correction du code des callbacks de drag&drop

---
 Perl/demos/Tk/demos/zinc_lib/counter.pl | 45 +++++++++++++++------------------
 1 file changed, 20 insertions(+), 25 deletions(-)

diff --git a/Perl/demos/Tk/demos/zinc_lib/counter.pl b/Perl/demos/Tk/demos/zinc_lib/counter.pl
index 74c51aa..1ef3295 100644
--- a/Perl/demos/Tk/demos/zinc_lib/counter.pl
+++ b/Perl/demos/Tk/demos/zinc_lib/counter.pl
@@ -231,7 +231,7 @@ my $clipping_item2 = $zinc->add('curve', $clipped_group2,
 				-linewidth=>0,
 			      );
 
-$zinc->contour($clipping_item2,"diff",[$x2,$y2,$x3,$y2,$x3,$y3,$x2,$y3,$x2,$y2]);
+$zinc->contour($clipping_item2,"addhole",[$x2,$y2,$x3,$y2,$x3,$y3,$x2,$y3,$x2,$y2]);
 
 #--------------------------------
 # Clipped items
@@ -312,7 +312,7 @@ sub refresh {
   # Rotation de la fleche
   #---------------------------------
   return if $timerIsDead;   # the timer is still running when using zinc-demos!
-  $zinc->rotate("$fleche",$angle,$centre[0],$centre[1]);
+  $zinc->rotate($fleche,$angle,$centre[0],$centre[1]);
   $nb+=1;
   if (($nb==$nb_tot)&&($angle==$PI/$pas))
     {
@@ -332,7 +332,7 @@ sub refresh {
   #--------------------------------
   # Centaines
   #---------------------------------
-  $zinc->translate("$cent",0,-0.01);
+  $zinc->translate($cent,0,-0.01);
 
   my @coords_c1=$zinc->transform($cent,$group1,[$c_c1[0],$c_c1[1]]);
   if(int($coords_c1[1])==$yc-210){
@@ -351,7 +351,7 @@ sub refresh {
   #-------------------------------- 
   #Dixaines
   #---------------------------------
-  $zinc->translate("$dix",0,-0.1);
+  $zinc->translate($dix,0,-0.1);
 
   my @coords_d1=$zinc->transform($dix,$group1,[$c_d1[0],$c_d1[1]]);
   if(int($coords_d1[1])==$yd-210){
@@ -371,7 +371,7 @@ sub refresh {
   #--------------------------------
   # Unites
   #---------------------------------
-  $zinc->translate("$unit",0,-1);
+  $zinc->translate($unit,0,-1);
 
   my @coords_u1=$zinc->transform($unit,$group1,[$c_u1[0],$c_u1[1]]);
   if($coords_u1[1]==$yu-210){
@@ -397,38 +397,33 @@ sub refresh {
 # Drag and drop the counter
 #---------------------------------------------
 
-$zinc -> bind("$cercle",'<ButtonPress-1>'=>[sub{
-					      move_on($_[1],$_[2]); #"move_on" state
-					    },Ev('x'),Ev('y')]); 
+my ($prev_x, $prev_y);
+$zinc -> bind($cercle,'<ButtonPress-1>'=>[\&move_on] ); 
+
 
 #"move_on" state#
 sub move_on{
-  my ($xi,$yi)=@_;
-  $zinc -> bind("$cercle",'<ButtonPress-1>'=>"");
-  $zinc -> bind("$cercle",'<Motion>'=>
-		[sub{move($xi,$yi,$_[1],$_[2]); #move the counter
-		     $xi=$_[1];
-		     $yi=$_[2];
-		   },Ev('x'),Ev('y')]); 
-  $zinc -> bind("$cercle",'<ButtonRelease-1>'=>sub{
-		  move_off();}); #"move_off" state
+    $prev_x=$zinc->XEvent()->x;
+    $prev_y=$zinc->XEvent()->y;
+    # move the counter
+    $zinc -> bind($cercle,'<Motion>'=> [\&move]);
+    $zinc -> bind($cercle,'<ButtonRelease-1>'=> [\&move_off]); #"move_off" state
 }
 
 
 #"move_off" state#
 sub move_off{
-  $zinc -> bind("$cercle",'<ButtonPress-1>'=>[sub{
-					       move_on($_[1],$_[2]); #"move_on" state
-					     },Ev('x'),Ev('y')]); 
-  $zinc -> bind("$cercle",'<Motion>'=>""); 
-  $zinc -> bind("$cercle",'<ButtonRelease-1>'=>"");
+  $zinc -> bind($cercle,'<Motion>'=>""); 
+  $zinc -> bind($cercle,'<ButtonRelease-1>'=>"");
 }
 
 #move the counter#
 sub move{
-  my ($xi,$yi,$x,$y)=@_;
-  $zinc->translate("$clipped_group1",$x-$xi,$y-$yi);
-  $zinc->translate("$clipped_group2",$x-$xi,$y-$yi);
+  my $x=$zinc->XEvent()->x,
+  my $y=$zinc->XEvent()->y;
+  $zinc->translate($clipped_group1,$x-$prev_x,$y-$prev_y);
+  $zinc->translate($clipped_group2,$x-$prev_x,$y-$prev_y);
+  ($prev_x,$prev_y) = ($x,$y);
 }
  
 Tk::MainLoop;
-- 
cgit v1.1