[4408] | 1 | package Uploader::GUI::wxImagePreview; |
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| 2 | use strict; |
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[4718] | 3 | use base qw/Wx::Dialog Class::Accessor::Fast/; |
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[4408] | 4 | use Wx qw/ |
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| 5 | wxDefaultPosition |
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| 6 | wxDefaultSize |
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| 7 | wxBG_STYLE_CUSTOM |
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[4718] | 8 | |
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| 9 | wxIMAGE_QUALITY_HIGH |
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| 10 | |
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| 11 | wxRESIZE_BORDER |
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| 12 | |
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| 13 | wxDIALOG_EX_METAL |
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| 14 | |
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| 15 | wxDIALOG_NO_PARENT |
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| 16 | wxDEFAULT_DIALOG_STYLE |
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| 17 | |
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| 18 | wxMAXIMIZE_BOX |
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| 19 | wxMINIMIZE_BOX |
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| 20 | |
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| 21 | wxSTAY_ON_TOP |
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[4408] | 22 | /; |
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| 23 | |
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| 24 | __PACKAGE__->mk_accessors( |
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| 25 | qw/ |
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| 26 | image |
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| 27 | image_size |
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| 28 | caption |
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| 29 | / |
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| 30 | ); |
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| 31 | use Data::Dumper; |
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| 32 | use Wx::Event qw/ |
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| 33 | EVT_PAINT |
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| 34 | EVT_SIZE |
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| 35 | /; |
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| 36 | |
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| 37 | sub new { |
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| 38 | my( $class, $params ) = @_; |
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| 39 | my( $self ) = $class->SUPER::new( |
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[4718] | 40 | undef, |
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[4408] | 41 | -1, |
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[4718] | 42 | "Preview", |
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[4408] | 43 | wxDefaultPosition, |
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[4718] | 44 | [400,300], |
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| 45 | wxMAXIMIZE_BOX| |
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| 46 | wxMINIMIZE_BOX| |
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| 47 | wxRESIZE_BORDER| |
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| 48 | wxDEFAULT_DIALOG_STYLE| |
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| 49 | wxSTAY_ON_TOP| |
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| 50 | wxDIALOG_NO_PARENT |
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[4408] | 51 | ); |
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| 52 | |
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| 53 | $self->SetBackgroundStyle(wxBG_STYLE_CUSTOM); |
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| 54 | |
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| 55 | Wx::InitAllImageHandlers(); |
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| 56 | |
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| 57 | EVT_SIZE($self, sub { |
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| 58 | my ( $this, $event ) = @_; |
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| 59 | |
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| 60 | $this->Refresh; |
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| 61 | $event->Skip(); |
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| 62 | } |
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| 63 | ); |
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| 64 | |
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| 65 | |
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| 66 | EVT_PAINT( |
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| 67 | $self, |
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| 68 | sub { |
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| 69 | my ( $this, $event ) = @_; |
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| 70 | |
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| 71 | my $dc = Wx::AutoBufferedPaintDC->new($this); |
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| 72 | if($this->image){ |
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| 73 | |
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| 74 | my ($w, $h) = $this->GetSizeWH; |
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| 75 | my $p_prop = $w / $h; |
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| 76 | |
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| 77 | # calculation made to keep aspect |
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| 78 | # ratio and maximize image size |
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| 79 | |
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| 80 | my $scale; |
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| 81 | my ($img_w, $img_h) = @{$this->image_size}; |
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[4587] | 82 | return unless $img_w; |
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| 83 | return unless $img_h; |
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| 84 | |
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[4408] | 85 | my $img_prop = $img_w / $img_h; |
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| 86 | |
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| 87 | $scale = ($p_prop > $img_prop) |
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| 88 | ? ($h / $img_h) |
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| 89 | : ($w / $img_w); |
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| 90 | |
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| 91 | $scale = 1 if($scale > 1); |
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| 92 | |
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| 93 | my ($sw, $sh) = map({$_ * $scale} $img_w, $img_h); |
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| 94 | my $bmp = Wx::Bitmap->new($this->image->Scale($sw, $sh, wxIMAGE_QUALITY_HIGH)); |
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| 95 | my $xoff = ($w - $sw) / 2; |
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| 96 | my $yoff = ($h - $sh) / 2; |
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| 97 | $dc->DrawBitmap($bmp, $xoff, $yoff, $dc->Clear ? 1:1); |
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| 98 | } |
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| 99 | else{ |
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| 100 | $dc->Clear; |
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| 101 | } |
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| 102 | } |
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| 103 | ); |
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| 104 | |
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| 105 | |
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| 106 | $self; |
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| 107 | } |
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| 108 | |
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| 109 | |
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| 110 | 1; |
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