GAbstractButton.cpp 4.7 KB

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  1. #include <LibDraw/Palette.h>
  2. #include <LibGUI/GAbstractButton.h>
  3. #include <LibGUI/GPainter.h>
  4. GAbstractButton::GAbstractButton(GWidget* parent)
  5. : GAbstractButton({}, parent)
  6. {
  7. }
  8. GAbstractButton::GAbstractButton(const StringView& text, GWidget* parent)
  9. : GWidget(parent)
  10. , m_text(text)
  11. {
  12. m_auto_repeat_timer = CTimer::construct(this);
  13. m_auto_repeat_timer->on_timeout = [this] {
  14. click();
  15. };
  16. }
  17. GAbstractButton::~GAbstractButton()
  18. {
  19. }
  20. void GAbstractButton::set_text(const StringView& text)
  21. {
  22. if (m_text == text)
  23. return;
  24. m_text = text;
  25. update();
  26. }
  27. void GAbstractButton::set_checked(bool checked)
  28. {
  29. if (m_checked == checked)
  30. return;
  31. m_checked = checked;
  32. if (is_exclusive() && checked) {
  33. parent_widget()->for_each_child_of_type<GAbstractButton>([&](auto& sibling) {
  34. if (!sibling.is_exclusive() || !sibling.is_checked())
  35. return IterationDecision::Continue;
  36. sibling.m_checked = false;
  37. sibling.update();
  38. if (sibling.on_checked)
  39. sibling.on_checked(false);
  40. return IterationDecision::Continue;
  41. });
  42. m_checked = true;
  43. }
  44. update();
  45. if (on_checked)
  46. on_checked(checked);
  47. }
  48. void GAbstractButton::set_checkable(bool checkable)
  49. {
  50. if (m_checkable == checkable)
  51. return;
  52. m_checkable = checkable;
  53. update();
  54. }
  55. void GAbstractButton::mousemove_event(GMouseEvent& event)
  56. {
  57. bool is_over = rect().contains(event.position());
  58. m_hovered = is_over;
  59. if (event.buttons() & GMouseButton::Left) {
  60. if (is_enabled()) {
  61. bool being_pressed = is_over;
  62. if (being_pressed != m_being_pressed) {
  63. m_being_pressed = being_pressed;
  64. if (m_auto_repeat_interval) {
  65. if (!m_being_pressed)
  66. m_auto_repeat_timer->stop();
  67. else
  68. m_auto_repeat_timer->start(m_auto_repeat_interval);
  69. }
  70. update();
  71. }
  72. }
  73. }
  74. GWidget::mousemove_event(event);
  75. }
  76. void GAbstractButton::mousedown_event(GMouseEvent& event)
  77. {
  78. #ifdef GABSTRACTBUTTON_DEBUG
  79. dbgprintf("GAbstractButton::mouse_down_event: x=%d, y=%d, button=%u\n", event.x(), event.y(), (unsigned)event.button());
  80. #endif
  81. if (event.button() == GMouseButton::Left) {
  82. if (is_enabled()) {
  83. m_being_pressed = true;
  84. update();
  85. if (m_auto_repeat_interval) {
  86. click();
  87. m_auto_repeat_timer->start(m_auto_repeat_interval);
  88. }
  89. }
  90. }
  91. GWidget::mousedown_event(event);
  92. }
  93. void GAbstractButton::mouseup_event(GMouseEvent& event)
  94. {
  95. #ifdef GABSTRACTBUTTON_DEBUG
  96. dbgprintf("GAbstractButton::mouse_up_event: x=%d, y=%d, button=%u\n", event.x(), event.y(), (unsigned)event.button());
  97. #endif
  98. if (event.button() == GMouseButton::Left) {
  99. bool was_auto_repeating = m_auto_repeat_timer->is_active();
  100. m_auto_repeat_timer->stop();
  101. if (is_enabled()) {
  102. bool was_being_pressed = m_being_pressed;
  103. m_being_pressed = false;
  104. update();
  105. if (was_being_pressed && !was_auto_repeating)
  106. click();
  107. }
  108. }
  109. GWidget::mouseup_event(event);
  110. }
  111. void GAbstractButton::enter_event(CEvent&)
  112. {
  113. m_hovered = true;
  114. update();
  115. }
  116. void GAbstractButton::leave_event(CEvent&)
  117. {
  118. m_hovered = false;
  119. update();
  120. }
  121. void GAbstractButton::keydown_event(GKeyEvent& event)
  122. {
  123. if (event.key() == KeyCode::Key_Return) {
  124. click();
  125. event.accept();
  126. return;
  127. }
  128. GWidget::keydown_event(event);
  129. }
  130. void GAbstractButton::paint_text(GPainter& painter, const Rect& rect, const Font& font, TextAlignment text_alignment)
  131. {
  132. auto clipped_rect = rect.intersected(this->rect());
  133. if (!is_enabled()) {
  134. painter.draw_text(clipped_rect.translated(1, 1), text(), font, text_alignment, Color::White, TextElision::Right);
  135. painter.draw_text(clipped_rect, text(), font, text_alignment, Color::from_rgb(0x808080), TextElision::Right);
  136. return;
  137. }
  138. if (text().is_empty())
  139. return;
  140. painter.draw_text(clipped_rect, text(), font, text_alignment, palette().button_text(), TextElision::Right);
  141. if (is_focused())
  142. painter.draw_rect(clipped_rect.inflated(6, 4), Color(140, 140, 140));
  143. }
  144. void GAbstractButton::change_event(GEvent& event)
  145. {
  146. if (event.type() == GEvent::Type::EnabledChange) {
  147. if (!is_enabled()) {
  148. bool was_being_pressed = m_being_pressed;
  149. m_being_pressed = false;
  150. if (was_being_pressed)
  151. update();
  152. }
  153. }
  154. GWidget::change_event(event);
  155. }