diff --git a/scene/gui/rich_text_label.cpp b/scene/gui/rich_text_label.cpp index fd19fad6671..0b53f2e1217 100644 --- a/scene/gui/rich_text_label.cpp +++ b/scene/gui/rich_text_label.cpp @@ -33,6 +33,7 @@ #include "core/math/math_defs.h" #include "core/os/keyboard.h" #include "core/os/os.h" +#include "label.h" #include "scene/scene_string_names.h" #include "servers/display_server.h" @@ -1501,6 +1502,9 @@ void RichTextLabel::_notification(int p_what) { update(); } } break; + case NOTIFICATION_DRAG_END: { + selection.drag_attempt = false; + } break; } } @@ -1554,6 +1558,8 @@ void RichTextLabel::gui_input(const Ref &p_event) { int c_index = 0; bool outside; + selection.drag_attempt = false; + _find_click(main, b->get_position(), &c_frame, &c_line, &c_item, &c_index, &outside); if (c_item != nullptr) { if (selection.enabled) { @@ -1564,17 +1570,22 @@ void RichTextLabel::gui_input(const Ref &p_event) { // Erase previous selection. if (selection.active) { - selection.from_frame = nullptr; - selection.from_line = 0; - selection.from_item = nullptr; - selection.from_char = 0; - selection.to_frame = nullptr; - selection.to_line = 0; - selection.to_item = nullptr; - selection.to_char = 0; - selection.active = false; + if (_is_click_inside_selection()) { + selection.drag_attempt = true; + selection.click_item = nullptr; + } else { + selection.from_frame = nullptr; + selection.from_line = 0; + selection.from_item = nullptr; + selection.from_char = 0; + selection.to_frame = nullptr; + selection.to_line = 0; + selection.to_item = nullptr; + selection.to_char = 0; + selection.active = false; - update(); + update(); + } } } } @@ -1587,6 +1598,8 @@ void RichTextLabel::gui_input(const Ref &p_event) { int c_index = 0; bool outside; + selection.drag_attempt = false; + _find_click(main, b->get_position(), &c_frame, &c_line, &c_item, &c_index, &outside); if (c_frame) { @@ -1618,6 +1631,22 @@ void RichTextLabel::gui_input(const Ref &p_event) { DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text()); } selection.click_item = nullptr; + if (selection.drag_attempt) { + selection.drag_attempt = false; + if (_is_click_inside_selection()) { + selection.from_frame = nullptr; + selection.from_line = 0; + selection.from_item = nullptr; + selection.from_char = 0; + selection.to_frame = nullptr; + selection.to_line = 0; + selection.to_item = nullptr; + selection.to_char = 0; + selection.active = false; + + update(); + } + } if (!b->is_double_click() && !scroll_updated) { Item *c_item = nullptr; @@ -3626,6 +3655,29 @@ void RichTextLabel::set_deselect_on_focus_loss_enabled(const bool p_enabled) { } } +Variant RichTextLabel::get_drag_data(const Point2 &p_point) { + if (selection.drag_attempt && selection.enabled) { + String t = get_selected_text(); + Label *l = memnew(Label); + l->set_text(t); + set_drag_preview(l); + return t; + } + + return Variant(); +} + +bool RichTextLabel::_is_click_inside_selection() const { + if (selection.active && selection.enabled && selection.click_frame && selection.from_frame && selection.to_frame) { + const Line &l_click = selection.click_frame->lines[selection.click_line]; + const Line &l_from = selection.from_frame->lines[selection.from_line]; + const Line &l_to = selection.to_frame->lines[selection.to_line]; + return (l_click.char_offset + selection.click_char >= l_from.char_offset + selection.from_char) && (l_click.char_offset + selection.click_char <= l_to.char_offset + selection.to_char); + } else { + return false; + } +} + bool RichTextLabel::_search_table(ItemTable *p_table, List::Element *p_from, const String &p_string, bool p_reverse_search) { List::Element *E = p_from; while (E != nullptr) { diff --git a/scene/gui/rich_text_label.h b/scene/gui/rich_text_label.h index 5b58f14d96e..3ffbe3654b6 100644 --- a/scene/gui/rich_text_label.h +++ b/scene/gui/rich_text_label.h @@ -396,6 +396,7 @@ private: bool active = false; // anything selected? i.e. from, to, etc. valid? bool enabled = false; // allow selections? + bool drag_attempt = false; }; Selection selection; @@ -404,6 +405,7 @@ private: int visible_characters = -1; float percent_visible = 1.0; + bool _is_click_inside_selection() const; void _find_click(ItemFrame *p_frame, const Point2i &p_click, ItemFrame **r_click_frame = nullptr, int *r_click_line = nullptr, Item **r_click_item = nullptr, int *r_click_char = nullptr, bool *r_outside = nullptr); String _get_line_text(ItemFrame *p_frame, int p_line, Selection p_sel) const; @@ -545,6 +547,7 @@ public: VScrollBar *get_v_scroll() { return vscroll; } virtual CursorShape get_cursor_shape(const Point2 &p_pos) const override; + virtual Variant get_drag_data(const Point2 &p_point) override; void set_selection_enabled(bool p_enabled); bool is_selection_enabled() const;