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LibGfx+Everywhere: Change Gfx::Rect
to be endpoint exclusive
Previously, calling `.right()` on a `Gfx::Rect` would return the last column's coordinate still inside the rectangle, or `left + width - 1`. This is called 'endpoint inclusive' and does not make a lot of sense for `Gfx::Rect<float>` where a rectangle of width 5 at position (0, 0) would return 4 as its right side. This same problem exists for `.bottom()`. This changes `Gfx::Rect` to be endpoint exclusive, which gives us the nice property that `width = right - left` and `height = bottom - top`. It enables us to treat `Gfx::Rect<int>` and `Gfx::Rect<float>` exactly the same. All users of `Gfx::Rect` have been updated accordingly.
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commit
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88 changed files with 524 additions and 518 deletions
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@ -172,15 +172,15 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
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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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for (auto i = image_rect.left(); i < image_rect.right() - 1; i++) {
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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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auto end_point = content_to_frame_position({ i, image_rect.bottom() - 1 }).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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for (auto i = image_rect.top(); i < image_rect.bottom() - 1; i++) {
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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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auto end_point = content_to_frame_position({ image_rect.right() - 1, 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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@ -822,19 +822,19 @@ void ImageEditor::paint_selection(Gfx::Painter& painter)
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void ImageEditor::draw_marching_ants(Gfx::Painter& painter, Gfx::IntRect const& rect) const
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{
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// Top line
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for (int x = rect.left(); x <= rect.right(); ++x)
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for (int x = rect.left(); x < rect.right(); ++x)
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draw_marching_ants_pixel(painter, x, rect.top());
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// Right line
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for (int y = rect.top() + 1; y <= rect.bottom(); ++y)
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draw_marching_ants_pixel(painter, rect.right(), y);
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for (int y = rect.top() + 1; y < rect.bottom(); ++y)
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draw_marching_ants_pixel(painter, rect.right() - 1, y);
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// Bottom line
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for (int x = rect.right() - 1; x >= rect.left(); --x)
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draw_marching_ants_pixel(painter, x, rect.bottom());
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for (int x = rect.right() - 2; x >= rect.left(); --x)
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draw_marching_ants_pixel(painter, x, rect.bottom() - 1);
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// Left line
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for (int y = rect.bottom() - 1; y > rect.top(); --y)
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for (int y = rect.bottom() - 2; y > rect.top(); --y)
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draw_marching_ants_pixel(painter, rect.left(), y);
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}
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@ -849,18 +849,17 @@ void ImageEditor::draw_marching_ants(Gfx::Painter& painter, Mask const& mask) co
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rect.inflate(step * 2, step * 2); // prevent borders from having visible ants if the selection extends beyond it
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// Scan the image horizontally to find vertical borders
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for (int y = rect.top(); y <= rect.bottom(); y += step) {
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for (int y = rect.top(); y < rect.bottom(); y += step) {
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bool previous_selected = false;
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for (int x = rect.left(); x <= rect.right(); x += step) {
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for (int x = rect.left(); x < rect.right(); x += step) {
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bool this_selected = mask.get(x, y) > 0;
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if (this_selected != previous_selected) {
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Gfx::IntRect image_pixel { x, y, 1, 1 };
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auto pixel = content_to_frame_rect(image_pixel).to_type<int>();
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auto end = max(pixel.top(), pixel.bottom()); // for when the zoom is < 100%
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auto end = max(pixel.top() + 1, pixel.bottom()); // for when the zoom is < 100%
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for (int pixel_y = pixel.top(); pixel_y <= end; pixel_y++) {
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for (int pixel_y = pixel.top(); pixel_y < end; pixel_y++) {
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draw_marching_ants_pixel(painter, pixel.left(), pixel_y);
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}
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}
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@ -870,20 +869,19 @@ void ImageEditor::draw_marching_ants(Gfx::Painter& painter, Mask const& mask) co
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}
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// Scan the image vertically to find horizontal borders
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for (int x = rect.left(); x <= rect.right(); x += step) {
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for (int x = rect.left(); x < rect.right(); x += step) {
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bool previous_selected = false;
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for (int y = rect.top(); y <= rect.bottom(); y += step) {
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for (int y = rect.top(); y < rect.bottom(); y += step) {
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bool this_selected = mask.get(x, y) > 0;
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if (this_selected != previous_selected) {
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Gfx::IntRect image_pixel { x, y, 1, 1 };
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auto pixel = content_to_frame_rect(image_pixel).to_type<int>();
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auto end = max(pixel.left(), pixel.right()); // for when the zoom is < 100%
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auto end = max(pixel.left() + 1, pixel.right()); // for when the zoom is < 100%
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for (int pixel_x = pixel.left(); pixel_x <= end; pixel_x++) {
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for (int pixel_x = pixel.left(); pixel_x < end; pixel_x++)
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draw_marching_ants_pixel(painter, pixel_x, pixel.top());
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}
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}
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previous_selected = this_selected;
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