From 5f9ec05c636fd79d9c92f0c541134a46ec04fdfd Mon Sep 17 00:00:00 2001
From: mertz
Date: Thu, 3 Apr 2003 09:30:01 +0000
Subject: - portage par JLV du logozinc avec l'item curve et des portions de
 bezier - passage au nouveaux formats de gradients (zinc >> 3.2.6h) - ajout de
 tags aux diff�rents �lements graphiques pour les besoins de la demo  
 tkZincLogo.pl

---
 Perl/debug/LogoZinc.pm                     | 405 ++++++++++-------------------
 Perl/demos/Tk/demos/zinc_lib/tkZincLogo.pl |   4 +-
 2 files changed, 134 insertions(+), 275 deletions(-)

diff --git a/Perl/debug/LogoZinc.pm b/Perl/debug/LogoZinc.pm
index 7e25d35..f32fb6d 100644
--- a/Perl/debug/LogoZinc.pm
+++ b/Perl/debug/LogoZinc.pm
@@ -1,11 +1,13 @@
 #!/usr/bin/perl
 #---------------------------------------------------------------
+#  Project         : Harmony
+#  Module          : Harmony
 #  File            : LogoZinc.pm
 #
-#  Copyright (C) 2001-2002
+#  Copyright (C) 2001
 #  Centre d'Études de la Navigation Aérienne
 #  Authors: Vinot Jean-Luc <vinot@cena.fr>
-#  $Id$
+#
 #---------------------------------------------------------------
 
 package LogoZinc;
@@ -17,81 +19,75 @@ use Math::Trig;
 Construct Tk::Widget 'LogoZinc';
 
 
-my %builder = (-shape => {-geom => [['point', 0, 0],
-				    ['lineto', 106, 0],
-				    ['lineto', 0, 58],
-				    ['lineto', 16, -18],
-				    ['lineto', 34, 0],
-				    ['lineto', -25, 29],
-				    ['lineto', 22, 30],
-				    ['lineto', 50, -58],
-				    ['lineto', -48, 0],
-				    ['lineto', 0, -42],
-				    ['lineto', 64, 0],
-				    ['moveto', 0, 34],
-				    ['arc', 34, 34, 270, 135, 5],
-				    ['lineto', -44, 50],
-				    ['lineto', 44, 0],
-				    ['lineto', 0, -18],
-				    ['moveto', 50, 0],
-				    ['arc', 50, 50, 180, 154, 5],
-				    ['moveto', 50, 31],
-				    ['arc', 56, 56, 210, 60, 5],
-				    ['lineto', 0, 42],
-				    ['lineto', -2, 0],
-				    ['moveto', 0, 14],
-				    ['arc', 14, 14, 270, -180, -5],
-				    ['lineto', 14, 0],
-				    ['lineto', 0, 42],
-				    ['lineto', -14, 0],
-				    ['moveto', 0, -56],
-				    ['arc', 56, 56, 90, 50, 5],
-				    ['lineto', 0, 20],
-				    ['lineto', -40, 0],
-				    ['lineto', 0, -59],
-				    ['moveto', -8, 0],
-				    ['arc', 8, 8, 360, -180, -5],
-				    ['lineto', 0, 59],
-				    ['lineto', -38, 0],
-				    ['lineto', 0, -18],
-				    ['moveto', -8, 0],
-				    ['arc', 8, 10, 360, -180, -5],
-				    ['lineto', 0, 18],
-				    ['lineto', -51, 0],
-				    ['moveto', 0, -34],
-				    ['arc', 34, 34, 90, 108, 4],
-				    ['lineto', -28, 0],
-				    ['lineto', -16, -24],
-				    ['lineto', 0, 24],
-				    ['lineto', -30, 0],
-				    ['lineto', 0, -64],
-				    ['lineto', -22, 0],
-				    ['lineto', 0, 64],
-				    ['lineto', -32, 0],
-				    ['lineto', 0, -64],
-				    ['lineto', -20, 0],
-				    ],
-			  -linewidth => 3,
-			  -linecolor => '#000000;70',
-#			  -fillcolor => '#ffffff 0 |#66848c 96|#7192aa 100',
-			  -fillcolor => '=axial 270 |#ffffff 0 |#66848c 96|#7192aa 100',
-			  -shadow => {-dxy => [6, 6],
-				      -fillcolor => '#000000;18',
-				  },
-			  },
-
-	       -point => {-posi => [240, 96],
-			  -alpha => 72,
-			  -geom => [['arc', 20, 20, 0, 360, 5]],
-			  -linewidth => 1,
-			  -linecolor => '#a10000;80',
-			  -fillcolor => '=radial -66 -66 |#ffffff;100 0|#f70000;100 48|#900000;100 80|#ab0000;100 100',
-			  -shadow => {-dxy => [5, 5],
-#				      -fillcolor => '#770000;64 0|#770000;70 78|#770000;0 100',
-				      -fillcolor => '=path -50 -50 |#770000;64 0|#770000;70 78|#770000;0 100',
-				  },
-		      },
-	       );
+my @Gradiants;
+
+# paramètres de construction graphique
+my %builder = (-gradset => {'logoshape' => '=axial 270 |#ffffff;100 0 28|#66848c;100 96|#7192aa;100 100',
+			    'logopoint' => '=radial -20 -20 |#ffffff;100 0|#f70000;100 48|#900000;100 80|#ab0000;100 100',
+			    'logoptshad' => '=path 0 0 |#770000;64 0|#770000;70 78|#770000;0 100',
+			    },
+
+	       -shape => {-form => {-itemtype => 'curve',
+				    -coords => [[0, 0],[106, 0],[106, 58],[122, 41],[156, 41],[131, 69],
+						[153, 99],[203, 41],[155, 41],[155, 0],[218, 0],[240, 0, 'c'],
+						[252, 17, 'c'],[252, 34],[252, 40, 'c'],[249, 50, 'c'],
+						[244, 56],[202, 105],[246, 105],[246, 87],[246, 60, 'c'],
+						[271, 37, 'c'],[297, 37],[323, 37, 'c'],[342, 57, 'c'],[344, 68],
+						[347, 64, 'c'],[350, 60, 'c'],[353, 56],[363, 46, 'c'],[375, 37, 'c'],
+						[395, 37],[395, 79],[393, 79],[385, 79, 'c'],[379, 86, 'c'],
+						[379, 93],[379, 100, 'c'],[385, 107, 'c'],[393, 107],[409, 107],
+						[409, 148],[397, 148],[378, 148, 'c'],[364, 144, 'c'],[354, 133],
+						[346, 124],[346, 148],[305, 148],[305, 87],[305, 83, 'c'],[301, 79, 'c'],
+						[297, 79],[293, 79, 'c'],[289, 83, 'c'],[289, 87],[289, 150],[251, 150],
+						[251, 130],[251, 126, 'c'],[247, 122, 'c'],[243, 122],[239, 122, 'c'],
+						[235, 126, 'c'],[235, 130],[235, 150],[176, 150],[154, 150,'c'],
+						[146, 131,'c'],[146, 114],[148, 105],[120, 105],[104, 81],[104, 105],
+						[74, 105],[74, 41],[52, 41],[52, 105],[20, 105],[20, 41],[0, 41],
+					       ],
+
+				    -params => {-priority => 50,
+						-linewidth => 3,
+						-linecolor => '#000000;100',
+						-filled => 1,
+						-closed => 0,
+						-fillcolor => 'logoshape',
+					       },
+				   },
+
+			  -shadow => {-clone => '-form',
+				      -translate => [6, 6],
+				      -params => {-fillcolor => '#000000;18',
+						  -linewidth => 0,
+						  -priority => 20,
+						 },
+				     },
+			 },
+
+	       -point => {-coords => [240, 96],
+			  -params => {-alpha => 80,
+				      -priority => 100,
+				     },
+
+			  -form => {-itemtype => 'arc',
+				    -coords => [[-20, -20], [20, 20]],
+				    -params => {-priority => 50,
+						-filled => 1,
+						-linewidth => 1,
+						-linecolor => '#a10000;100',
+						-fillcolor => 'logopoint',
+						-closed => 1,
+					       },
+				   },
+
+			  -shadow => {-clone => '-form',
+				      -translate => [5, 5],
+				      -params => {-fillcolor => 'logoptshad',
+						  -linewidth => 0,
+						  -priority => 20,
+						 },
+				     },
+			 },
+	      );
 
 
 
@@ -109,220 +105,83 @@ sub new {
     $self->{'-priority'} = (exists $params{'-priority'}) ? $params{'-priority'} : 500;
     $self->{'-position'} = (exists $params{'-position'}) ? $params{'-position'} : [0, 0];
     $self->{'-scale'} = (exists $params{'-scale'}) ? $params{'-scale'} : [1, 1];
-    
+
     $self->drawLogo();
-    
+
     return bless $self, $type;
 }
 
 
 
 sub drawLogo {
-    my ($self) = @_;
-    my $zinc = $self->{'-widget'}; 
-    my $parent = $self->{'-parent'};
-    my $priority = $self->{'-priority'};
-
-    # création du groupe
-    my ($x, $y) = @{$self->{'-position'}};
-    my ($xs, $ys) = @{$self->{'-scale'}};
-    
-    my $logogroup = $zinc->add('group', $parent, -priority => $priority);
-    $zinc->coords($logogroup, [$x, $y]);
-
-    my $group = $zinc->add('group', $logogroup);
-    $zinc->scale($group, $xs, $ys);
-
-    # création de l'item
-    my $shapeconf = $builder{'-shape'};
-    my @form_params = @{$shapeconf->{'-geom'}};
-
-    # ombre portée
-    my ($dx, $dy) = @{$shapeconf->{'-shadow'}->{'-dxy'}};
-    my $shadow_pts = $self->polyLine($dx, $dy, @form_params);
-    $zinc->add('curve', $group,
-	       $shadow_pts,
-	       -closed => 1,
-	       -filled => 1,
-	       -fillcolor => $shapeconf->{'-shadow'}->{'-fillcolor'},
-	       -linewidth => 0,	
-	       );
-
-    my $shape_pts = $self->polyLine(0, 0, @form_params);
-    my $linewidth = int(($shapeconf->{'-linewidth'} * $xs) + 0.5);
-    $linewidth = 1 if $linewidth <= 0;
-    
-    $zinc->add('curve', $group,
-	       $shape_pts,
-	       -tags => ['letters'],
-	       -closed => 0,
-	       -filled => 1,
-	       -fillcolor => $shapeconf->{'-fillcolor'},
-	       -linewidth => $linewidth,
-	       -linecolor => $shapeconf->{'-linecolor'},
-	       );
-
-    my $pointconf = $builder{'-point'};
-    my $ptgroup = $zinc->add('group', $group, -alpha => $pointconf->{'-alpha'});
-    $zinc->coords($ptgroup,  $pointconf->{'-posi'});
-
-    @form_params = @{$pointconf->{'-geom'}};
-    # ombre portée
-    ($dx, $dy) = @{$pointconf->{'-shadow'}->{'-dxy'}};
-    $shadow_pts = $self->polyLine($dx, $dy, @form_params);
-    $zinc->add('curve', $ptgroup,
-	       $shadow_pts,
-	       -closed => 1,
-	       -filled => 1,
-	       -fillcolor => $pointconf->{'-shadow'}->{'-fillcolor'},
-	       -linewidth => 0,	
-	       );
-
-    my $pt_pts = $self->polyLine(0, 0, @form_params);  
-    $zinc->add('curve', $ptgroup,
-	       $pt_pts,
-	       -tags => ['point'],
-	       -closed => 1,
-	       -filled => 1,
-	       -fillcolor => $pointconf->{'-fillcolor'},
-	       -linewidth => $pointconf->{'-linewidth'},
-	       -linecolor => $pointconf->{'-linecolor'},
-	       );
-    
-
-
-}
-
-sub polyLine {
-    my ($self, $x0, $y0, @faces) = @_;
-    my @pts = ();
-    my @previous = ($x0, $y0);
-    
-    return undef if ($#faces == -1);
-	
-
-    foreach (@faces) {
-	my ($type, $dx, $dy, $angle, $extend, $astep) = @{$_}; 
-
-	if ($type eq 'moveto') {
-	    @previous = ($previous[0] + $dx, $previous[1] + $dy);
-	    
-	}  elsif ($type eq 'point') {
-	    push (@pts, ($dx, $dy));
-
-	} elsif ($type eq 'lineto') {
-	    @previous = ($previous[0] + $dx, $previous[1] + $dy);
-	    push (@pts, @previous);
-
-	} else {
-	    next if ($dx == 0 or $dy == 0);
-
-	    my $xc = $previous[0];
-	    my $yc = $previous[1];
-
-	    if ($dx == $dy) {
-		push (@pts, &arc_pts($xc, $yc, $dx, $angle, $extend, $astep));
-
-	    } else {
-		if ($dx > $dy) {
-		    my $z = $dy / $dx;
-		    push (@pts, &ove_pts($xc, $yc, $dx, $angle, $extend,
-					 $astep, $z, 'y'));
-		    
-
-		} else {
-		    my $z = $dx / $dy;
-		    push (@pts, &ove_pts($xc, $yc, $dy, $angle, $extend,
-					 $astep, $z, 'x'));
-		    
-
-		}
+  my ($self) = @_;
+  my $zinc = $self->{'-widget'}; 
+  my $parent = $self->{'-parent'};
+  my $priority = $self->{'-priority'};
 
-	    }
 
-	    my $numpts = scalar(@pts);
-	    @previous = ($pts[$numpts - 2],$pts[$numpts - 1]); 
-	}
+  if ($builder{'-gradset'}) {
+    while (my ($name, $gradiant) = each( %{$builder{'-gradset'}})) {
+      # création des gradiants nommés
+      $zinc->gname($gradiant, $name);
+      push(@Gradiants, $name);
     }
+  }
+
+  # création des groupes logo
+  # logogroup : groupe de coordonnées
+  my $logogroup =  $self->{'-item'} = $zinc->add('group', $parent, -priority => $priority);
+  $zinc->coords($logogroup, $self->{'-position'}) if ($self->{'-position'});
+
+  # group de scaling
+  my $group = $self->{'-scaleitem'} = $zinc->add('group', $logogroup);
+  $zinc->scale($group,  @{$self->{'-scale'}}) if ($self->{'-scale'});
+
+
+  # création de l'item shape (Zinc)
+  my $formstyle = $builder{'-shape'}->{'-form'};
+  $self->ajustLineWidth($formstyle->{'-params'});
+  my $shape = $zinc->add('curve', $group,
+			$formstyle->{'-coords'},
+			%{$formstyle->{'-params'}},
+		       );
+
+  # ombre portée de la shape
+  my $shadstyle = $builder{'-shape'}->{'-shadow'};
+  my $shadow = $zinc->clone($shape, %{$shadstyle->{'-params'}});
+  $zinc->translate($shadow, @{$shadstyle->{'-translate'}}) if ($shadstyle->{'-translate'});
+
+  # réalisation du point
+  my $pointconf = $builder{'-point'};
+  my $ptgroup = $zinc->add('group', $group, %{$pointconf->{'-params'}});
+  $zinc->coords($ptgroup,  $pointconf->{'-coords'});
+
+  my $pointstyle =  $pointconf->{'-form'};
+  my $point = $zinc->add('arc', $ptgroup,
+			 $pointstyle->{'-coords'},
+			 %{$pointstyle->{'-params'}},
+			 );
+
+  my $shadpoint = $zinc->clone($point, %{$shadstyle->{'-params'}});
+  $shadstyle = $pointconf->{'-shadow'};
+  $zinc->translate($shadpoint, @{$shadstyle->{'-translate'}});
 
-    return \@pts;
-
-}
-
-
-# calcul des points constitutif d'un arc
-sub arc_pts {
-    my ($x, $y, $rad, $angle, $extent, $step, $debug) = @_;
-    my @pts = ();
-
-    
-    if ($extent > 0) {
-	for (my $alpha = $angle; $alpha <= ($angle + $extent); $alpha += $step) {
-	    #push (@pts, &rad_point($x, $y, $rad,$alpha));
-	    my ($xn, $yn) = &rad_point($x, $y, $rad,$alpha);
-	    push (@pts, ($xn, $yn));
-	    print "Graphics::arc_pts a:$alpha $step xn:$xn yn:$yn\n" if $debug;
-	}
-    } else {
-	for (my $alpha = $angle; $alpha >= ($angle + $extent); $alpha += $step) {
-	    push (@pts, &rad_point($x, $y, $rad,$alpha));
-	}
-    }
-
-    return @pts;
 }
 
-#calcul des points constitutif d'un arc d'ellipse (arc aplati)
-sub ove_pts {
-    my ($x, $y, $rad, $angle, $extent, $step, $z, $axe) = @_;
-    my @pts = ();
-    my @arcpts = ();
-
-    
-    my $maxangle = $extent + $step;
-    my ($cx, $cy);
-
-    if ($extent >= 0) {
-	for (my $alpha = $angle; $alpha <= ($angle + $extent); $alpha += $step) {
-	    push(@arcpts, &rad_point($x, $y, $rad, $alpha));
 
-	}
+sub ajustLineWidth {
+  my ($self, $style, $scale) = @_;
 
-    } else {
-	for (my $alpha = $angle; $alpha >= ($angle + $extent); $alpha += $step) {
-	    push(@arcpts, &rad_point($x, $y, $rad, $alpha));
-	}
+  if ($style->{'-linewidth'}) {
+    my ($sx, $sy) = @{$self->{'-scale'}};
+    my $linewidth = $style->{'-linewidth'};
+    if ($linewidth >= 2) {
+      my $ratio = ($sx > $sy) ? $sy : $sx;
+      $style->{'-linewidth'} = $linewidth * $ratio;
     }
-    
-    for (my $i = 0; $i < scalar(@arcpts); $i+=2) {
-	my ($zx, $zy) = ($arcpts[$i], $arcpts[$i+1]);
-
-	if ($axe eq 'y') {
-	    my $dy = ($zy - $y) * $z;
-	    $zy = $y + $dy;
-
-	} else {
-	    my $dx = ($zx - $x) * $z;
-	    $zx = $x + $dx;
-	}
-	
-	push (@pts, ($zx, $zy));
-    }
-
-    return @pts;
+  }
 }
 
-sub rad_point {
-    my ($x, $y, $rad, $angle) = @_;
-    my $alpha = deg2rad($angle);
-
-    my $xpt = $x + ($rad * cos($alpha));
-    my $ypt = $y + ($rad * sin($alpha));
-
-    return ($xpt, $ypt,); 
-}
-
-
 1;
 
 
diff --git a/Perl/demos/Tk/demos/zinc_lib/tkZincLogo.pl b/Perl/demos/Tk/demos/zinc_lib/tkZincLogo.pl
index a898a7d..98ef310 100644
--- a/Perl/demos/Tk/demos/zinc_lib/tkZincLogo.pl
+++ b/Perl/demos/Tk/demos/zinc_lib/tkZincLogo.pl
@@ -95,8 +95,8 @@ sub modifyGradient {
     $yrate = 0 if $yrate < 0;
     $yrate = 1 if $yrate > 1;
     my $gradientpercent = sprintf ("%d", $yrate * 100);
-    
-    $zinc->itemconfigure ('letters', -fillcolor => "=axial 270|#ffffff 0 28|#66848c $gradientpercent|#7192aa");    
+
+    $zinc->itemconfigure ('zinc_shape', -fillcolor => "=axial 270|#ffffff 0 28|#66848c $gradientpercent|#7192aa");    
 }
 
 
-- 
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