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Code Issues Releases Wiki Activity

Fix bug with drawing (half) transparent colors with GD

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This commit is contained in:
Oliver Vogel
2023-12-20 16:31:52 +01:00
parent 1831a4f45e
commit 27833d225c
5 changed files with 9 additions and 0 deletions
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3
src/Drivers/Gd/Modifiers/DrawEllipseModifier.php
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@@ -15,6 +15,8 @@ class DrawEllipseModifier extends AbstractDrawModifier
{ {
foreach ($image as $frame) { foreach ($image as $frame) {
if ($this->drawable->hasBorder()) { if ($this->drawable->hasBorder()) {
imagealphablending($frame->native(), true);
// slightly smaller ellipse to keep 1px bordered edges clean // slightly smaller ellipse to keep 1px bordered edges clean
if ($this->drawable->hasBackgroundColor()) { if ($this->drawable->hasBackgroundColor()) {
imagefilledellipse( imagefilledellipse(
@@ -49,6 +51,7 @@ class DrawEllipseModifier extends AbstractDrawModifier
) )
); );
} else { } else {
imagealphablending($frame->native(), true);
imagefilledellipse( imagefilledellipse(
$frame->native(), $frame->native(),
$this->position()->x(), $this->position()->x(),

1
src/Drivers/Gd/Modifiers/DrawLineModifier.php
View File

@@ -16,6 +16,7 @@ class DrawLineModifier extends AbstractDrawModifier
public function apply(ImageInterface $image): ImageInterface public function apply(ImageInterface $image): ImageInterface
{ {
foreach ($image as $frame) { foreach ($image as $frame) {
imagealphablending($frame->native(), true);
imageantialias($frame->native(), true); imageantialias($frame->native(), true);
imageline( imageline(
$frame->native(), $frame->native(),

1
src/Drivers/Gd/Modifiers/DrawPixelModifier.php
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@@ -19,6 +19,7 @@ class DrawPixelModifier extends DriverSpecializedModifier
); );
foreach ($image as $frame) { foreach ($image as $frame) {
imagealphablending($frame->native(), true);
imagesetpixel( imagesetpixel(
$frame->native(), $frame->native(),
$this->position->x(), $this->position->x(),

2
src/Drivers/Gd/Modifiers/DrawPolygonModifier.php
View File

@@ -19,6 +19,7 @@ class DrawPolygonModifier extends AbstractDrawModifier
{ {
foreach ($image as $frame) { foreach ($image as $frame) {
if ($this->drawable->hasBackgroundColor()) { if ($this->drawable->hasBackgroundColor()) {
imagealphablending($frame->native(), true);
imagefilledpolygon( imagefilledpolygon(
$frame->native(), $frame->native(),
$this->drawable->toArray(), $this->drawable->toArray(),
@@ -29,6 +30,7 @@ class DrawPolygonModifier extends AbstractDrawModifier
} }
if ($this->drawable->hasBorder()) { if ($this->drawable->hasBorder()) {
imagealphablending($frame->native(), true);
imagesetthickness($frame->native(), $this->drawable->borderSize()); imagesetthickness($frame->native(), $this->drawable->borderSize());
imagepolygon( imagepolygon(
$frame->native(), $frame->native(),

2
src/Drivers/Gd/Modifiers/DrawRectangleModifier.php
View File

@@ -21,6 +21,7 @@ class DrawRectangleModifier extends AbstractDrawModifier
foreach ($image as $frame) { foreach ($image as $frame) {
// draw background // draw background
if ($this->drawable->hasBackgroundColor()) { if ($this->drawable->hasBackgroundColor()) {
imagealphablending($frame->native(), true);
imagefilledrectangle( imagefilledrectangle(
$frame->native(), $frame->native(),
$this->position()->x(), $this->position()->x(),
@@ -35,6 +36,7 @@ class DrawRectangleModifier extends AbstractDrawModifier
// draw border // draw border
if ($this->drawable->hasBorder()) { if ($this->drawable->hasBorder()) {
imagealphablending($frame->native(), true);
imagesetthickness($frame->native(), $this->drawable->borderSize()); imagesetthickness($frame->native(), $this->drawable->borderSize());
imagerectangle( imagerectangle(
$frame->native(), $frame->native(),