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https://github.com/RGBCube/serenity
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PixelPaint: Split bitmap() of Layer into {content, display}_bitmap
This is in preparation to support masking of Layers. We now distinguish between the "display_bitmap" which will be the whole Layer with every effect applied and the "content_bitmap" which contains the actual unmodified pixels in the Layer.
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14 changed files with 73 additions and 42 deletions
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@ -49,7 +49,7 @@ void Image::paint_into(GUI::Painter& painter, Gfx::IntRect const& dest_rect) con
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continue;
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auto target = dest_rect.translated(layer.location().x() * scale, layer.location().y() * scale);
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target.set_size(layer.size().width() * scale, layer.size().height() * scale);
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painter.draw_scaled_bitmap(target, layer.bitmap(), layer.rect(), (float)layer.opacity_percent() / 100.0f);
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painter.draw_scaled_bitmap(target, layer.display_bitmap(), layer.rect(), (float)layer.opacity_percent() / 100.0f);
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}
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}
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@ -126,7 +126,8 @@ void Image::serialize_as_json(JsonObjectSerializer<StringBuilder>& json) const
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MUST(json_layer.add("opacity_percent", layer.opacity_percent()));
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MUST(json_layer.add("visible", layer.is_visible()));
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MUST(json_layer.add("selected", layer.is_selected()));
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MUST(json_layer.add("bitmap", encode_base64(bmp_dumber.dump(layer.bitmap()))));
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// FIXME: Respect mask
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MUST(json_layer.add("bitmap", encode_base64(bmp_dumber.dump(layer.display_bitmap()))));
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}
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}
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}
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@ -330,7 +331,7 @@ void Image::flatten_all_layers()
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auto& bottom_layer = m_layers.at(0);
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GUI::Painter painter(bottom_layer.bitmap());
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GUI::Painter painter(bottom_layer.content_bitmap());
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paint_into(painter, { 0, 0, m_size.width(), m_size.height() });
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for (size_t index = m_layers.size() - 1; index > 0; index--) {
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@ -351,7 +352,7 @@ void Image::merge_visible_layers()
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while (index < m_layers.size()) {
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if (m_layers.at(index).is_visible()) {
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auto& bottom_layer = m_layers.at(index);
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GUI::Painter painter(bottom_layer.bitmap());
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GUI::Painter painter(bottom_layer.content_bitmap());
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paint_into(painter, { 0, 0, m_size.width(), m_size.height() });
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select_layer(&bottom_layer);
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index++;
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@ -380,8 +381,8 @@ void Image::merge_active_layer_up(Layer& layer)
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}
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auto& layer_above = m_layers.at(layer_index + 1);
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GUI::Painter painter(layer_above.bitmap());
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painter.draw_scaled_bitmap(rect(), layer.bitmap(), layer.rect(), (float)layer.opacity_percent() / 100.0f);
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GUI::Painter painter(layer_above.content_bitmap());
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painter.draw_scaled_bitmap(rect(), layer.display_bitmap(), layer.rect(), (float)layer.opacity_percent() / 100.0f);
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remove_layer(layer);
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select_layer(&layer_above);
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}
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@ -397,8 +398,8 @@ void Image::merge_active_layer_down(Layer& layer)
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}
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auto& layer_below = m_layers.at(layer_index - 1);
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GUI::Painter painter(layer_below.bitmap());
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painter.draw_scaled_bitmap(rect(), layer.bitmap(), layer.rect(), (float)layer.opacity_percent() / 100.0f);
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GUI::Painter painter(layer_below.content_bitmap());
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painter.draw_scaled_bitmap(rect(), layer.display_bitmap(), layer.rect(), (float)layer.opacity_percent() / 100.0f);
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remove_layer(layer);
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select_layer(&layer_below);
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}
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@ -473,9 +474,10 @@ void ImageUndoCommand::redo()
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void Image::flip(Gfx::Orientation orientation)
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{
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for (auto& layer : m_layers) {
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auto flipped = layer.bitmap().flipped(orientation).release_value_but_fixme_should_propagate_errors();
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layer.set_bitmap(*flipped);
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auto flipped = layer.content_bitmap().flipped(orientation).release_value_but_fixme_should_propagate_errors();
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layer.set_content_bitmap(*flipped);
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layer.did_modify_bitmap(rect());
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// FIXME: Respect mask
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}
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did_change();
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@ -484,9 +486,10 @@ void Image::flip(Gfx::Orientation orientation)
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void Image::rotate(Gfx::RotationDirection direction)
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{
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for (auto& layer : m_layers) {
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auto rotated = layer.bitmap().rotated(direction).release_value_but_fixme_should_propagate_errors();
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layer.set_bitmap(*rotated);
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auto rotated = layer.content_bitmap().rotated(direction).release_value_but_fixme_should_propagate_errors();
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layer.set_content_bitmap(*rotated);
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layer.did_modify_bitmap(rect());
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// FIXME: Respect mask
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}
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m_size = { m_size.height(), m_size.width() };
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@ -496,9 +499,10 @@ void Image::rotate(Gfx::RotationDirection direction)
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void Image::crop(Gfx::IntRect const& cropped_rect)
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{
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for (auto& layer : m_layers) {
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auto cropped = layer.bitmap().cropped(cropped_rect).release_value_but_fixme_should_propagate_errors();
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layer.set_bitmap(*cropped);
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auto cropped = layer.content_bitmap().cropped(cropped_rect).release_value_but_fixme_should_propagate_errors();
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layer.set_content_bitmap(*cropped);
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layer.did_modify_bitmap(rect());
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// FIXME: Respect mask
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}
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m_size = { cropped_rect.width(), cropped_rect.height() };
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@ -512,7 +516,7 @@ Color Image::color_at(Gfx::IntPoint const& point) const
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if (!layer.is_visible() || !layer.rect().contains(point))
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continue;
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auto layer_color = layer.bitmap().get_pixel(point);
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auto layer_color = layer.display_bitmap().get_pixel(point);
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float layer_opacity = layer.opacity_percent() / 100.0f;
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layer_color.set_alpha((u8)(layer_color.alpha() * layer_opacity));
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color = color.blend(layer_color);
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