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[TextEdit] Draw guidelines under the text and caret.

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This commit is contained in:
Pāvels Nadtočajevs
2025-07-14 10:52:39 +03:00
parent c6d130abd9
commit 8624134c89
4 changed files with 32 additions and 19 deletions
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45
scene/gui/code_edit.cpp
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@@ -70,29 +70,10 @@ void CodeEdit::_notification(int p_what) {
case NOTIFICATION_DRAW: { case NOTIFICATION_DRAW: {
RID ci = get_canvas_item(); RID ci = get_canvas_item();
const Size2 size = get_size();
const bool caret_visible = is_caret_visible(); const bool caret_visible = is_caret_visible();
const bool rtl = is_layout_rtl(); const bool rtl = is_layout_rtl();
const int row_height = get_line_height(); const int row_height = get_line_height();
if (line_length_guideline_columns.size() > 0) {
const int xmargin_beg = theme_cache.style_normal->get_margin(SIDE_LEFT) + get_total_gutter_width();
const int xmargin_end = size.width - theme_cache.style_normal->get_margin(SIDE_RIGHT) - (is_drawing_minimap() ? get_minimap_width() : 0);
for (int i = 0; i < line_length_guideline_columns.size(); i++) {
const int column_pos = theme_cache.font->get_string_size(String("0").repeat((int)line_length_guideline_columns[i]), HORIZONTAL_ALIGNMENT_LEFT, -1, theme_cache.font_size).x;
const int xoffset = xmargin_beg + column_pos - get_h_scroll();
if (xoffset > xmargin_beg && xoffset < xmargin_end) {
Color guideline_color = (i == 0) ? theme_cache.line_length_guideline_color : theme_cache.line_length_guideline_color * Color(1, 1, 1, 0.5);
if (rtl) {
RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(size.width - xoffset, 0), Point2(size.width - xoffset, size.height), guideline_color);
continue;
}
RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(xoffset, 0), Point2(xoffset, size.height), guideline_color);
}
}
}
if (caret_visible) { if (caret_visible) {
const bool draw_code_completion = code_completion_active && !code_completion_options.is_empty(); const bool draw_code_completion = code_completion_active && !code_completion_options.is_empty();
const bool draw_code_hint = !code_hint.is_empty(); const bool draw_code_hint = !code_hint.is_empty();
@@ -280,6 +261,32 @@ void CodeEdit::_notification(int p_what) {
} }
} }
void CodeEdit::_draw_guidelines() {
if (line_length_guideline_columns.is_empty()) {
return;
}
RID ci = get_canvas_item();
const Size2 size = get_size();
const bool rtl = is_layout_rtl();
const int xmargin_beg = theme_cache.style_normal->get_margin(SIDE_LEFT) + get_total_gutter_width();
const int xmargin_end = size.width - theme_cache.style_normal->get_margin(SIDE_RIGHT) - (is_drawing_minimap() ? get_minimap_width() : 0);
for (int i = 0; i < line_length_guideline_columns.size(); i++) {
const int column_pos = theme_cache.font->get_string_size(String("0").repeat((int)line_length_guideline_columns[i]), HORIZONTAL_ALIGNMENT_LEFT, -1, theme_cache.font_size).x;
const int xoffset = xmargin_beg + column_pos - get_h_scroll();
if (xoffset > xmargin_beg && xoffset < xmargin_end) {
Color guideline_color = (i == 0) ? theme_cache.line_length_guideline_color : theme_cache.line_length_guideline_color * Color(1, 1, 1, 0.5);
if (rtl) {
RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(size.width - xoffset, 0), Point2(size.width - xoffset, size.height), guideline_color);
continue;
}
RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(xoffset, 0), Point2(xoffset, size.height), guideline_color);
}
}
}
void CodeEdit::gui_input(const Ref<InputEvent> &p_gui_input) { void CodeEdit::gui_input(const Ref<InputEvent> &p_gui_input) {
Ref<InputEventPanGesture> pan_gesture = p_gui_input; Ref<InputEventPanGesture> pan_gesture = p_gui_input;
if (pan_gesture.is_valid() && code_completion_active && code_completion_rect.has_point(pan_gesture->get_position())) { if (pan_gesture.is_valid() && code_completion_active && code_completion_rect.has_point(pan_gesture->get_position())) {

2
scene/gui/code_edit.h
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@@ -325,6 +325,8 @@ protected:
virtual void _unhide_carets() override; virtual void _unhide_carets() override;
virtual void _draw_guidelines() override;
/* Text manipulation */ /* Text manipulation */
// Overridable actions // Overridable actions

3
scene/gui/text_edit.cpp
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@@ -1304,6 +1304,9 @@ void TextEdit::_notification(int p_what) {
bottom_limit_y -= theme_cache.style_normal->get_margin(SIDE_BOTTOM); bottom_limit_y -= theme_cache.style_normal->get_margin(SIDE_BOTTOM);
} }
// Draw guidelines.
_draw_guidelines();
// Draw main text. // Draw main text.
line_drawing_cache.clear(); line_drawing_cache.clear();
int row_height = draw_placeholder ? placeholder_line_height + theme_cache.line_spacing : get_line_height(); int row_height = draw_placeholder ? placeholder_line_height + theme_cache.line_spacing : get_line_height();

1
scene/gui/text_edit.h
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@@ -696,6 +696,7 @@ protected:
static void _bind_compatibility_methods(); static void _bind_compatibility_methods();
#endif // DISABLE_DEPRECATED #endif // DISABLE_DEPRECATED
virtual void _draw_guidelines() {}
virtual void _update_theme_item_cache() override; virtual void _update_theme_item_cache() override;
/* Internal API for CodeEdit, pending public API. */ /* Internal API for CodeEdit, pending public API. */