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Merge pull request #55355 from ConteZero/drag_and_drop_3.x

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Rémi Verschelde 2022-03-14 08:43:22 +01:00 • committed by GitHub
commit 08c3e00b95
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13 changed files with 347 additions and 28 deletions
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62
scene/gui/rich_text_label.cpp
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@ -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"
#ifdef TOOLS_ENABLED
@ -1062,6 +1063,9 @@ void RichTextLabel::_notification(int p_what) {
update();
}
}
case Control::NOTIFICATION_DRAG_END: {
selection.drag_attempt = false;
} break;
}
}
@ -1144,6 +1148,9 @@ void RichTextLabel::_gui_input(Ref<InputEvent> p_event) {
Item *item = nullptr;
bool outside;
selection.drag_attempt = false;
_find_click(main, b->get_position(), &item, &line, &outside);
if (item) {
@ -1153,13 +1160,18 @@ void RichTextLabel::_gui_input(Ref<InputEvent> p_event) {
// Erase previous selection.
if (selection.active) {
selection.from = nullptr;
selection.from_char = '\0';
selection.to = nullptr;
selection.to_char = '\0';
selection.active = false;
if (_is_click_inside_selection()) {
selection.drag_attempt = true;
selection.click = nullptr;
} else {
selection.from = nullptr;
selection.from_char = '\0';
selection.to = nullptr;
selection.to_char = '\0';
selection.active = false;
update();
update();
}
}
}
}
@ -1169,6 +1181,8 @@ void RichTextLabel::_gui_input(Ref<InputEvent> p_event) {
Item *item = nullptr;
bool outside;
selection.drag_attempt = false;
_find_click(main, b->get_position(), &item, &line, &outside);
while (item && item->type != ITEM_TEXT) {
@ -1189,6 +1203,25 @@ void RichTextLabel::_gui_input(Ref<InputEvent> p_event) {
}
}
} else if (!b->is_pressed()) {
if (selection.drag_attempt) {
selection.drag_attempt = false;
int line = 0;
Item *item = nullptr;
bool outside;
_find_click(main, b->get_position(), &item, &line, &outside);
selection.click = item;
selection.click_char = line;
if (_is_click_inside_selection()) {
selection.active = false;
selection.from = nullptr;
selection.from_char = '\0';
selection.to = nullptr;
selection.to_char = '\0';
selection.active = false;
update();
}
}
selection.click = nullptr;
if (!b->is_doubleclick() && !scroll_updated) {
@ -2498,6 +2531,22 @@ void RichTextLabel::set_selection_enabled(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 {
return (selection.click->index >= selection.from->index && selection.click->index <= selection.to->index && (selection.click->index > selection.from->index || selection.click_char >= selection.from_char) && (selection.click->index < selection.to->index || selection.click_char <= selection.to_char));
}
bool RichTextLabel::search(const String &p_string, bool p_from_selection, bool p_search_previous) {
ERR_FAIL_COND_V(!selection.enabled, false);
Item *it = main;
@ -3007,6 +3056,7 @@ RichTextLabel::RichTextLabel() {
selection.click = nullptr;
selection.active = false;
selection.enabled = false;
selection.drag_attempt = false;
visible_characters = -1;
percent_visible = 1;