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Fix for #1057; group logo transparecy (and pixilation)

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This commit is contained in:
Sean Murphy 2009-02-04 14:44:12 -05:00
parent 22c806a15a
commit 5c880bc6cc
2 changed files with 51 additions and 20 deletions
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44
actions/grouplogo.php
View File

@ -364,7 +364,7 @@ class GrouplogoAction extends Action
$this->mode = 'crop'; $this->mode = 'crop';
$this->showForm(_('Pick a square area of the image to be your avatar'), $this->showForm(_('Pick a square area of the image to be the logo.'),
true); true);
} }
@ -377,7 +377,6 @@ class GrouplogoAction extends Action
function cropLogo() function cropLogo()
{ {
$user = common_current_user(); $user = common_current_user();
$profile = $user->getProfile(); $profile = $user->getProfile();
$filedata = $_SESSION['FILEDATA']; $filedata = $_SESSION['FILEDATA'];
@ -387,11 +386,6 @@ class GrouplogoAction extends Action
return; return;
} }
$x = $this->arg('avatar_crop_x');
$y = $this->arg('avatar_crop_y');
$w = ($this->arg('avatar_crop_w')) ? $this->arg('avatar_crop_w') : $filedata['width'];
$h = ($this->arg('avatar_crop_h')) ? $this->arg('avatar_crop_h') : $filedata['height'];
$filepath = common_avatar_path($filedata['filename']); $filepath = common_avatar_path($filedata['filename']);
if (!file_exists($filepath)) { if (!file_exists($filepath)) {
@ -414,17 +408,39 @@ class GrouplogoAction extends Action
return; return;
} }
$size = ($w > MAX_ORIGINAL) ? MAX_ORIGINAL : $w; // If image is not being cropped assume pos & dimentions of original
$dest_x = $this->arg('avatar_crop_x') ? $this->arg('avatar_crop_x'):0;
$dest_y = $this->arg('avatar_crop_y') ? $this->arg('avatar_crop_y'):0;
$dest_w = $this->arg('avatar_crop_w') ? $this->arg('avatar_crop_w'):$filedata['width'];
$dest_h = $this->arg('avatar_crop_h') ? $this->arg('avatar_crop_h'):$filedata['height'];
$size = ($dest_w > MAX_ORIGINAL) ? MAX_ORIGINAL : $dest_w;
common_debug("W = $dest_w, H = $dest_h, X = $dest_x, Y = $dest_y, size = $size");
$image_dest = imagecreatetruecolor($size, $size); $image_dest = imagecreatetruecolor($size, $size);
if ($filedata['type'] == IMAGETYPE_GIF || $filedata['type'] == IMAGETYPE_PNG) {
$background = imagecolorallocate($image_dest, 0, 0, 0); $transparent_idx = imagecolortransparent($image_src);
ImageColorTransparent($image_dest, $background);
imagealphablending($image_dest, false);
imagecopyresized($image_dest, $image_src, if ($transparent_idx >= 0) {
0, 0, $x, $y,
$size, $size, $w, $h); $transparent_color = imagecolorsforindex($image_src, $transparent_idx);
$transparent_idx = imagecolorallocate($image_dest, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($image_dest, 0, 0, $transparent_idx);
imagecolortransparent($image_dest, $transparent_idx);
} elseif ($filedata['type'] == IMAGETYPE_PNG) {
imagealphablending($image_dest, false);
$transparent = imagecolorallocatealpha($image_dest, 0, 0, 0, 127);
imagefill($image_dest, 0, 0, $transparent);
imagesavealpha($image_dest, true);
}
}
imagecopyresampled($image_dest, $image_src, 0, 0, $dest_x, $dest_y, $size, $size, $dest_w, $dest_h);
$filename = common_avatar_filename($this->group->id, $filename = common_avatar_filename($this->group->id,
image_type_to_extension($filedata['type']), image_type_to_extension($filedata['type']),

27
classes/User_group.php
View File

@ -132,14 +132,29 @@ class User_group extends Memcached_DataObject
} }
$image_dest = imagecreatetruecolor($size, $size); $image_dest = imagecreatetruecolor($size, $size);
if ($type == IMAGETYPE_GIF || $type == IMAGETYPE_PNG) {
$background = imagecolorallocate($image_dest, 0, 0, 0); $transparent_idx = imagecolortransparent($image_src);
ImageColorTransparent($image_dest, $background);
imagealphablending($image_dest, false); if ($transparent_idx >= 0) {
$transparent_color = imagecolorsforindex($image_src, $transparent_idx);
$transparent_idx = imagecolorallocate($image_dest, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($image_dest, 0, 0, $transparent_idx);
imagecolortransparent($image_dest, $transparent_idx);
} elseif ($type == IMAGETYPE_PNG) {
imagealphablending($image_dest, false);
$transparent = imagecolorallocatealpha($image_dest, 0, 0, 0, 127);
imagefill($image_dest, 0, 0, $transparent);
imagesavealpha($image_dest, true);
}
}
imagecopyresized($image_dest, $image_src, imagecopyresampled($image_dest, $image_src, 0, 0, 0, 0, $size, $size, $info[0], $info[1]);
0, 0, 0, 0,
$size, $size, $info[0], $info[1]);
$outname = common_avatar_filename($this->id, $outname = common_avatar_filename($this->id,
image_type_to_extension($type), image_type_to_extension($type),