GTableView.cpp 4.6 KB

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  1. #include <AK/StringBuilder.h>
  2. #include <Kernel/KeyCode.h>
  3. #include <LibGUI/GAction.h>
  4. #include <LibGUI/GMenu.h>
  5. #include <LibGUI/GModel.h>
  6. #include <LibGUI/GPainter.h>
  7. #include <LibGUI/GScrollBar.h>
  8. #include <LibGUI/GTableView.h>
  9. #include <LibGUI/GTextBox.h>
  10. #include <LibGUI/GWindow.h>
  11. GTableView::GTableView(GWidget* parent)
  12. : GAbstractColumnView(parent)
  13. {
  14. }
  15. GTableView::~GTableView()
  16. {
  17. }
  18. void GTableView::paint_event(GPaintEvent& event)
  19. {
  20. GFrame::paint_event(event);
  21. GPainter painter(*this);
  22. painter.add_clip_rect(frame_inner_rect());
  23. painter.add_clip_rect(event.rect());
  24. painter.fill_rect(event.rect(), SystemColor::Base);
  25. painter.translate(frame_thickness(), frame_thickness());
  26. painter.translate(-horizontal_scrollbar().value(), -vertical_scrollbar().value());
  27. if (!model())
  28. return;
  29. int exposed_width = max(content_size().width(), width());
  30. int y_offset = header_height();
  31. bool dummy;
  32. int first_visible_row = index_at_event_position(frame_inner_rect().top_left(), dummy).row();
  33. int last_visible_row = index_at_event_position(frame_inner_rect().bottom_right(), dummy).row();
  34. if (first_visible_row == -1)
  35. first_visible_row = 0;
  36. if (last_visible_row == -1)
  37. last_visible_row = model()->row_count() - 1;
  38. int painted_item_index = first_visible_row;
  39. for (int row_index = first_visible_row; row_index <= last_visible_row; ++row_index) {
  40. bool is_selected_row = selection().contains_row(row_index);
  41. int y = y_offset + painted_item_index * item_height();
  42. Color background_color;
  43. Color key_column_background_color;
  44. if (is_selected_row) {
  45. background_color = is_focused() ? Color::from_rgb(0x84351a) : Color::from_rgb(0x606060);
  46. key_column_background_color = is_focused() ? Color::from_rgb(0x84351a) : Color::from_rgb(0x606060);
  47. } else {
  48. if (alternating_row_colors() && (painted_item_index % 2)) {
  49. background_color = Color(220, 220, 220);
  50. key_column_background_color = Color(200, 200, 200);
  51. } else {
  52. background_color = SystemColor::Base;
  53. key_column_background_color = Color(220, 220, 220);
  54. }
  55. }
  56. painter.fill_rect(row_rect(painted_item_index), background_color);
  57. int x_offset = 0;
  58. for (int column_index = 0; column_index < model()->column_count(); ++column_index) {
  59. if (is_column_hidden(column_index))
  60. continue;
  61. auto column_metadata = model()->column_metadata(column_index);
  62. int column_width = this->column_width(column_index);
  63. const Font& font = column_metadata.font ? *column_metadata.font : this->font();
  64. bool is_key_column = model()->key_column() == column_index;
  65. Rect cell_rect(horizontal_padding() + x_offset, y, column_width, item_height());
  66. if (is_key_column) {
  67. auto cell_rect_for_fill = cell_rect.inflated(horizontal_padding() * 2, 0);
  68. painter.fill_rect(cell_rect_for_fill, key_column_background_color);
  69. }
  70. auto cell_index = model()->index(row_index, column_index);
  71. if (auto* delegate = column_data(column_index).cell_painting_delegate.ptr()) {
  72. delegate->paint(painter, cell_rect, *model(), cell_index);
  73. } else {
  74. auto data = model()->data(cell_index);
  75. if (data.is_bitmap()) {
  76. painter.blit(cell_rect.location(), data.as_bitmap(), data.as_bitmap().rect());
  77. } else if (data.is_icon()) {
  78. if (auto bitmap = data.as_icon().bitmap_for_size(16))
  79. painter.blit(cell_rect.location(), *bitmap, bitmap->rect());
  80. } else {
  81. Color text_color;
  82. if (is_selected_row)
  83. text_color = Color::White;
  84. else
  85. text_color = model()->data(cell_index, GModel::Role::ForegroundColor).to_color(SystemColor::Text);
  86. painter.draw_text(cell_rect, data.to_string(), font, column_metadata.text_alignment, text_color, TextElision::Right);
  87. }
  88. }
  89. x_offset += column_width + horizontal_padding() * 2;
  90. }
  91. ++painted_item_index;
  92. };
  93. Rect unpainted_rect(0, header_height() + painted_item_index * item_height(), exposed_width, height());
  94. painter.fill_rect(unpainted_rect, SystemColor::Base);
  95. // Untranslate the painter vertically and do the column headers.
  96. painter.translate(0, vertical_scrollbar().value());
  97. if (headers_visible())
  98. paint_headers(painter);
  99. }