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https://github.com/RGBCube/serenity
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PixelPaint: Inherit from AbstractZoomPanWidget
This commit is contained in:
Mustafa Quraish
Andreas Kling
parent
b21d128075
commit
7974fee800
12 changed files with 69 additions and 244 deletions
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@ -32,6 +32,8 @@ ImageEditor::ImageEditor(NonnullRefPtr<Image> image)
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set_focus_policy(GUI::FocusPolicy::StrongFocus);
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m_undo_stack.push(make<ImageUndoCommand>(*m_image));
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m_image->add_client(*this);
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set_original_rect(m_image->rect());
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set_scale_bounds(0.1f, 100.0f);
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m_pixel_grid_threshold = (float)Config::read_i32("PixelPaint", "PixelGrid", "Threshold", 15);
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m_show_pixel_grid = Config::read_bool("PixelPaint", "PixelGrid", "Show", true);
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@ -106,33 +108,33 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
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{
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Gfx::DisjointRectSet background_rects;
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background_rects.add(frame_inner_rect());
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background_rects.shatter(m_editor_image_rect);
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background_rects.shatter(content_rect());
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for (auto& rect : background_rects.rects())
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painter.fill_rect(rect, palette().color(Gfx::ColorRole::Tray));
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}
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Gfx::StylePainter::paint_transparency_grid(painter, m_editor_image_rect, palette());
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Gfx::StylePainter::paint_transparency_grid(painter, content_rect(), palette());
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painter.draw_rect(m_editor_image_rect.inflated(2, 2), Color::Black);
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m_image->paint_into(painter, m_editor_image_rect);
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painter.draw_rect(content_rect().inflated(2, 2), Color::Black);
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m_image->paint_into(painter, content_rect());
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if (m_active_layer && m_show_active_layer_boundary) {
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painter.draw_rect(enclosing_int_rect(image_rect_to_editor_rect(m_active_layer->relative_rect())).inflated(2, 2), Color::Black);
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painter.draw_rect(enclosing_int_rect(content_to_frame_rect(m_active_layer->relative_rect())).inflated(2, 2), Color::Black);
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}
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if (m_show_pixel_grid && m_scale > m_pixel_grid_threshold) {
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auto event_image_rect = enclosing_int_rect(editor_rect_to_image_rect(event.rect())).inflated(1, 1);
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if (m_show_pixel_grid && scale() > m_pixel_grid_threshold) {
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auto event_image_rect = enclosing_int_rect(frame_to_content_rect(event.rect())).inflated(1, 1);
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auto image_rect = m_image->rect().inflated(1, 1).intersected(event_image_rect);
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for (auto i = image_rect.left(); i < image_rect.right(); i++) {
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auto start_point = image_position_to_editor_position({ i, image_rect.top() }).to_type<int>();
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auto end_point = image_position_to_editor_position({ i, image_rect.bottom() }).to_type<int>();
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auto start_point = content_to_frame_position({ i, image_rect.top() }).to_type<int>();
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auto end_point = content_to_frame_position({ i, image_rect.bottom() }).to_type<int>();
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painter.draw_line(start_point, end_point, Color::LightGray);
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}
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for (auto i = image_rect.top(); i < image_rect.bottom(); i++) {
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auto start_point = image_position_to_editor_position({ image_rect.left(), i }).to_type<int>();
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auto end_point = image_position_to_editor_position({ image_rect.right(), i }).to_type<int>();
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auto start_point = content_to_frame_position({ image_rect.left(), i }).to_type<int>();
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auto end_point = content_to_frame_position({ image_rect.right(), i }).to_type<int>();
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painter.draw_line(start_point, end_point, Color::LightGray);
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}
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}
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@ -140,10 +142,10 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
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if (m_show_guides) {
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for (auto& guide : m_guides) {
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if (guide.orientation() == Guide::Orientation::Horizontal) {
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int y_coordinate = (int)image_position_to_editor_position({ 0.0f, guide.offset() }).y();
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int y_coordinate = (int)content_to_frame_position({ 0.0f, guide.offset() }).y();
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painter.draw_line({ 0, y_coordinate }, { rect().width(), y_coordinate }, Color::Cyan, 1, Gfx::Painter::LineStyle::Dashed, Color::LightGray);
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} else if (guide.orientation() == Guide::Orientation::Vertical) {
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int x_coordinate = (int)image_position_to_editor_position({ guide.offset(), 0.0f }).x();
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int x_coordinate = (int)content_to_frame_position({ guide.offset(), 0.0f }).x();
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painter.draw_line({ x_coordinate, 0 }, { x_coordinate, rect().height() }, Color::Cyan, 1, Gfx::Painter::LineStyle::Dashed, Color::LightGray);
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}
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}
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@ -163,8 +165,8 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
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painter.fill_rect({ { 0, 0 }, { rect().width(), m_ruler_thickness } }, ruler_bg_color);
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const auto ruler_step = calculate_ruler_step_size();
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const auto editor_origin_to_image = editor_position_to_image_position({ 0, 0 });
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const auto editor_max_to_image = editor_position_to_image_position({ width(), height() });
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const auto editor_origin_to_image = frame_to_content_position({ 0, 0 });
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const auto editor_max_to_image = frame_to_content_position({ width(), height() });
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// Horizontal ruler
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painter.draw_line({ 0, m_ruler_thickness }, { rect().width(), m_ruler_thickness }, ruler_fg_color);
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@ -173,12 +175,12 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
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const int num_sub_divisions = min(ruler_step, 10);
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for (int x_sub = 0; x_sub < num_sub_divisions; ++x_sub) {
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const int x_pos = x + (int)(ruler_step * x_sub / num_sub_divisions);
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const int editor_x_sub = image_position_to_editor_position({ x_pos, 0 }).x();
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const int editor_x_sub = content_to_frame_position({ x_pos, 0 }).x();
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const int line_length = (x_sub % 2 == 0) ? m_ruler_thickness / 3 : m_ruler_thickness / 6;
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painter.draw_line({ editor_x_sub, m_ruler_thickness - line_length }, { editor_x_sub, m_ruler_thickness }, ruler_fg_color);
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}
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const int editor_x = image_position_to_editor_position({ x, 0 }).x();
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const int editor_x = content_to_frame_position({ x, 0 }).x();
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painter.draw_line({ editor_x, 0 }, { editor_x, m_ruler_thickness }, ruler_fg_color);
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painter.draw_text({ { editor_x + 2, 0 }, { m_ruler_thickness, m_ruler_thickness - 2 } }, String::formatted("{}", x), painter.font(), Gfx::TextAlignment::CenterLeft, ruler_text_color);
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}
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@ -190,12 +192,12 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
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const int num_sub_divisions = min(ruler_step, 10);
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for (int y_sub = 0; y_sub < num_sub_divisions; ++y_sub) {
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const int y_pos = y + (int)(ruler_step * y_sub / num_sub_divisions);
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const int editor_y_sub = image_position_to_editor_position({ 0, y_pos }).y();
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const int editor_y_sub = content_to_frame_position({ 0, y_pos }).y();
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const int line_length = (y_sub % 2 == 0) ? m_ruler_thickness / 3 : m_ruler_thickness / 6;
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painter.draw_line({ m_ruler_thickness - line_length, editor_y_sub }, { m_ruler_thickness, editor_y_sub }, ruler_fg_color);
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}
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const int editor_y = image_position_to_editor_position({ 0, y }).y();
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const int editor_y = content_to_frame_position({ 0, y }).y();
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painter.draw_line({ 0, editor_y }, { m_ruler_thickness, editor_y }, ruler_fg_color);
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painter.draw_text({ { 0, editor_y - m_ruler_thickness }, { m_ruler_thickness, m_ruler_thickness } }, String::formatted("{}", y), painter.font(), Gfx::TextAlignment::BottomRight, ruler_text_color);
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}
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@ -213,7 +215,7 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
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int ImageEditor::calculate_ruler_step_size() const
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{
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const auto step_target = 80 / m_scale;
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const auto step_target = 80 / scale();
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const auto max_factor = 5;
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for (int factor = 0; factor < max_factor; ++factor) {
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if (step_target <= 1 * (float)pow(10, factor))
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@ -240,50 +242,6 @@ Gfx::IntRect ImageEditor::mouse_indicator_rect_y() const
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return Gfx::IntRect(top_left, size);
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}
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Gfx::FloatRect ImageEditor::layer_rect_to_editor_rect(Layer const& layer, Gfx::IntRect const& layer_rect) const
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{
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return image_rect_to_editor_rect(layer_rect.translated(layer.location()));
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}
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Gfx::FloatRect ImageEditor::image_rect_to_editor_rect(Gfx::IntRect const& image_rect) const
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{
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Gfx::FloatRect editor_rect;
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editor_rect.set_location(image_position_to_editor_position(image_rect.location()));
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editor_rect.set_width((float)image_rect.width() * m_scale);
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editor_rect.set_height((float)image_rect.height() * m_scale);
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return editor_rect;
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}
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Gfx::FloatRect ImageEditor::editor_rect_to_image_rect(Gfx::IntRect const& editor_rect) const
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{
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Gfx::FloatRect image_rect;
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image_rect.set_location(editor_position_to_image_position(editor_rect.location()));
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image_rect.set_width((float)editor_rect.width() / m_scale);
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image_rect.set_height((float)editor_rect.height() / m_scale);
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return image_rect;
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}
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Gfx::FloatPoint ImageEditor::layer_position_to_editor_position(Layer const& layer, Gfx::IntPoint const& layer_position) const
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{
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return image_position_to_editor_position(layer_position.translated(layer.location()));
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}
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Gfx::FloatPoint ImageEditor::image_position_to_editor_position(Gfx::IntPoint const& image_position) const
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{
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Gfx::FloatPoint editor_position;
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editor_position.set_x(m_editor_image_rect.x() + ((float)image_position.x() * m_scale));
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editor_position.set_y(m_editor_image_rect.y() + ((float)image_position.y() * m_scale));
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return editor_position;
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}
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Gfx::FloatPoint ImageEditor::editor_position_to_image_position(Gfx::IntPoint const& editor_position) const
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{
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Gfx::FloatPoint image_position;
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image_position.set_x(((float)editor_position.x() - m_editor_image_rect.x()) / m_scale);
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image_position.set_y(((float)editor_position.y() - m_editor_image_rect.y()) / m_scale);
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return image_position;
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}
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void ImageEditor::second_paint_event(GUI::PaintEvent& event)
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{
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if (m_active_tool)
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@ -292,7 +250,7 @@ void ImageEditor::second_paint_event(GUI::PaintEvent& event)
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GUI::MouseEvent ImageEditor::event_with_pan_and_scale_applied(GUI::MouseEvent const& event) const
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{
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auto image_position = editor_position_to_image_position(event.position());
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auto image_position = frame_to_content_position(event.position());
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return {
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static_cast<GUI::Event::Type>(event.type()),
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Gfx::IntPoint(image_position.x(), image_position.y()),
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@ -305,7 +263,7 @@ GUI::MouseEvent ImageEditor::event_with_pan_and_scale_applied(GUI::MouseEvent co
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GUI::MouseEvent ImageEditor::event_adjusted_for_layer(GUI::MouseEvent const& event, Layer const& layer) const
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{
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auto image_position = editor_position_to_image_position(event.position());
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auto image_position = frame_to_content_position(event.position());
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image_position.translate_by(-layer.location().x(), -layer.location().y());
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return {
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static_cast<GUI::Event::Type>(event.type()),
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@ -320,8 +278,7 @@ GUI::MouseEvent ImageEditor::event_adjusted_for_layer(GUI::MouseEvent const& eve
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void ImageEditor::mousedown_event(GUI::MouseEvent& event)
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{
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if (event.button() == GUI::MouseButton::Middle) {
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m_click_position = event.position();
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m_saved_pan_origin = m_pan_origin;
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start_panning(event.position());
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set_override_cursor(Gfx::StandardCursor::Drag);
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return;
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}
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@ -349,13 +306,8 @@ void ImageEditor::mousemove_event(GUI::MouseEvent& event)
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update(mouse_indicator_rect_y());
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}
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if (event.buttons() & GUI::MouseButton::Middle) {
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auto delta = event.position() - m_click_position;
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m_pan_origin = m_saved_pan_origin.translated(
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-delta.x(),
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-delta.y());
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relayout();
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if (is_panning()) {
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GUI::AbstractZoomPanWidget::mousemove_event(event);
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return;
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}
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@ -375,6 +327,10 @@ void ImageEditor::mousemove_event(GUI::MouseEvent& event)
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void ImageEditor::mouseup_event(GUI::MouseEvent& event)
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{
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set_override_cursor(m_active_cursor);
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if (event.button() == GUI::MouseButton::Middle) {
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stop_panning();
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return;
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}
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if (!m_active_tool)
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return;
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@ -384,12 +340,6 @@ void ImageEditor::mouseup_event(GUI::MouseEvent& event)
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m_active_tool->on_mouseup(m_active_layer.ptr(), tool_event);
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}
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void ImageEditor::mousewheel_event(GUI::MouseEvent& event)
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{
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auto scale_delta = -event.wheel_delta() * 0.1f;
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scale_centered_on_position(event.position(), scale_delta);
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}
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void ImageEditor::context_menu_event(GUI::ContextMenuEvent& event)
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{
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if (!m_active_tool)
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@ -397,12 +347,6 @@ void ImageEditor::context_menu_event(GUI::ContextMenuEvent& event)
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m_active_tool->on_context_menu(m_active_layer, event);
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}
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void ImageEditor::resize_event(GUI::ResizeEvent& event)
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{
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relayout();
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GUI::Frame::resize_event(event);
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}
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void ImageEditor::keydown_event(GUI::KeyEvent& event)
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{
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if (m_active_tool)
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@ -552,7 +496,7 @@ void ImageEditor::set_secondary_color(Color color)
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Layer* ImageEditor::layer_at_editor_position(Gfx::IntPoint const& editor_position)
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{
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auto image_position = editor_position_to_image_position(editor_position);
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auto image_position = frame_to_content_position(editor_position);
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for (ssize_t i = m_image->layer_count() - 1; i >= 0; --i) {
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auto& layer = m_image->layer(i);
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if (!layer.is_visible())
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@ -563,72 +507,9 @@ Layer* ImageEditor::layer_at_editor_position(Gfx::IntPoint const& editor_positio
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return nullptr;
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}
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void ImageEditor::set_absolute_scale(float scale, bool do_relayout)
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{
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if (scale < 0.1f)
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scale = 0.1f;
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if (scale > 100.0f)
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scale = 100.0f;
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if (scale == m_scale)
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return;
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m_scale = scale;
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if (on_scale_changed)
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on_scale_changed(m_scale);
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if (do_relayout)
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relayout();
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}
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void ImageEditor::clamped_scale_by(float scale_delta, bool do_relayout)
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{
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set_absolute_scale(m_scale * AK::exp2(scale_delta), do_relayout);
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}
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void ImageEditor::scale_centered_on_position(Gfx::IntPoint const& position, float scale_delta)
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{
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auto old_scale = m_scale;
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auto image_coord_of_position = editor_position_to_image_position(position);
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auto image_size = m_image->size();
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Gfx::FloatPoint offset_from_center_in_image_coords = {
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image_coord_of_position.x() - image_size.width() / 2.0f,
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image_coord_of_position.y() - image_size.height() / 2.0f
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};
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Gfx::FloatPoint offset_from_center_in_editor_coords = {
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position.x() - width() / 2.0f,
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position.y() - height() / 2.0f
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};
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clamped_scale_by(scale_delta, false);
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m_pan_origin = {
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offset_from_center_in_image_coords.x() * m_scale - offset_from_center_in_editor_coords.x(),
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offset_from_center_in_image_coords.y() * m_scale - offset_from_center_in_editor_coords.y()
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};
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if (old_scale != m_scale)
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relayout();
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}
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void ImageEditor::scale_by(float scale_delta)
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{
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if (scale_delta == 0)
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return;
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clamped_scale_by(scale_delta, true);
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}
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void ImageEditor::set_pan_origin(Gfx::FloatPoint const& pan_origin)
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{
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if (m_pan_origin == pan_origin)
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return;
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m_pan_origin = pan_origin;
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relayout();
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}
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void ImageEditor::fit_image_to_view(FitType type)
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{
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auto viewport_rect = rect();
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m_pan_origin = Gfx::FloatPoint(0, 0);
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if (m_show_rulers) {
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viewport_rect = {
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@ -643,56 +524,35 @@ void ImageEditor::fit_image_to_view(FitType type)
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auto image_size = image().size();
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auto height_ratio = floorf(border_ratio * viewport_rect.height()) / (float)image_size.height();
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auto width_ratio = floorf(border_ratio * viewport_rect.width()) / (float)image_size.width();
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float new_scale = 1.0f;
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switch (type) {
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case FitType::Width:
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set_absolute_scale(width_ratio, false);
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new_scale = width_ratio;
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break;
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case FitType::Height:
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set_absolute_scale(height_ratio, false);
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new_scale = height_ratio;
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break;
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case FitType::Image:
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set_absolute_scale(min(height_ratio, width_ratio), false);
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new_scale = min(height_ratio, width_ratio);
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break;
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}
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float offset = m_show_rulers ? -m_ruler_thickness / (m_scale * 2.0f) : 0.0f;
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m_pan_origin = Gfx::FloatPoint(offset, offset);
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float offset = m_show_rulers ? -m_ruler_thickness / (scale() * 2.0f) : 0.0f;
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relayout();
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}
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void ImageEditor::reset_scale_and_position()
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{
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||||
set_absolute_scale(1.0f, false);
|
||||
|
||||
m_pan_origin = Gfx::FloatPoint(0, 0);
|
||||
relayout();
|
||||
}
|
||||
|
||||
void ImageEditor::relayout()
|
||||
{
|
||||
Gfx::IntSize new_size;
|
||||
new_size.set_width(image().size().width() * m_scale);
|
||||
new_size.set_height(image().size().height() * m_scale);
|
||||
m_editor_image_rect.set_size(new_size);
|
||||
|
||||
Gfx::IntPoint new_location;
|
||||
new_location.set_x((width() / 2) - (new_size.width() / 2) - (m_pan_origin.x()));
|
||||
new_location.set_y((height() / 2) - (new_size.height() / 2) - (m_pan_origin.y()));
|
||||
m_editor_image_rect.set_location(new_location);
|
||||
|
||||
update();
|
||||
set_origin(Gfx::FloatPoint(offset, offset));
|
||||
set_scale(new_scale);
|
||||
}
|
||||
|
||||
void ImageEditor::image_did_change(Gfx::IntRect const& modified_image_rect)
|
||||
{
|
||||
update(m_editor_image_rect.intersected(enclosing_int_rect(image_rect_to_editor_rect(modified_image_rect))));
|
||||
update(content_rect().intersected(enclosing_int_rect(content_to_frame_rect(modified_image_rect))));
|
||||
}
|
||||
|
||||
void ImageEditor::image_did_change_rect(Gfx::IntRect const& new_image_rect)
|
||||
{
|
||||
m_editor_image_rect = enclosing_int_rect(image_rect_to_editor_rect(new_image_rect));
|
||||
update(m_editor_image_rect);
|
||||
set_original_rect(new_image_rect);
|
||||
set_content_rect(new_image_rect);
|
||||
}
|
||||
|
||||
void ImageEditor::image_select_layer(Layer* layer)
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue