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Merge pull request #104731 from Delsin-Yu/stackable-text-effect

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[GUI] Implement Stackable Text Outline on `Label`
This commit is contained in:
Thaddeus Crews
2025-04-29 11:24:13 -05:00
parent bc21c322c6 ac931c33c2
commit b1b873add3
5 changed files with 500 additions and 94 deletions
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146
scene/gui/label.cpp
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@@ -431,13 +431,13 @@ inline void draw_glyph_shadow(const Glyph &p_gl, const RID &p_canvas, const Colo
}
}
inline void draw_glyph_shadow_outline(const Glyph &p_gl, const RID &p_canvas, const Color &p_font_shadow_color, int p_shadow_outline_size, const Vector2 &p_ofs, const Vector2 &shadow_ofs) {
inline void draw_glyph_shadow_outline(const Glyph &p_gl, const RID &p_canvas, const Color &p_font_shadow_color, const Vector2 &p_ofs, int p_shadow_outline_size, const Vector2 &shadow_ofs) {
if (p_gl.font_rid != RID()) {
TS->font_draw_glyph_outline(p_gl.font_rid, p_canvas, p_gl.font_size, p_shadow_outline_size, p_ofs + Vector2(p_gl.x_off, p_gl.y_off) + shadow_ofs, p_gl.index, p_font_shadow_color);
}
}
inline void draw_glyph_outline(const Glyph &p_gl, const RID &p_canvas, const Color &p_font_outline_color, int p_outline_size, const Vector2 &p_ofs) {
inline void draw_glyph_outline(const Glyph &p_gl, const RID &p_canvas, const Color &p_font_outline_color, const Vector2 &p_ofs, int p_outline_size) {
if (p_gl.font_rid != RID()) {
if (p_font_outline_color.a != 0.0 && p_outline_size > 0) {
TS->font_draw_glyph_outline(p_gl.font_rid, p_canvas, p_gl.font_size, p_outline_size, p_ofs + Vector2(p_gl.x_off, p_gl.y_off), p_gl.index, p_font_outline_color);
@@ -758,6 +758,8 @@ void Label::_notification(int p_what) {
Color font_outline_color = has_settings ? settings->get_outline_color() : theme_cache.font_outline_color;
int outline_size = has_settings ? settings->get_outline_size() : theme_cache.font_outline_size;
int shadow_outline_size = has_settings ? settings->get_shadow_size() : theme_cache.font_shadow_outline_size;
Vector<LabelSettings::StackedOutlineData> stacked_outline_datas = has_settings ? settings->get_stacked_outline_data() : Vector<LabelSettings::StackedOutlineData>();
Vector<LabelSettings::StackedShadowData> stacked_shadow_datas = has_settings ? settings->get_stacked_shadow_data() : Vector<LabelSettings::StackedShadowData>();
bool rtl_layout = is_layout_rtl();
if (has_focus()) {
@@ -813,95 +815,67 @@ void Label::_notification(int p_what) {
ofs.y += asc;
// Draw shadow, outline and text. Note: Do not merge this into the single loop iteration, to prevent overlaps.
// Draw text effects and main texts. Note: Do not merge this into the single loop iteration, to prevent overlaps.
int processed_glyphs_step = 0;
for (int step = DRAW_STEP_SHADOW_OUTLINE; step < DRAW_STEP_MAX; step++) {
if (step == DRAW_STEP_SHADOW_OUTLINE && (font_shadow_color.a == 0 || shadow_outline_size <= 0)) {
continue;
}
if (step == DRAW_STEP_SHADOW && (font_shadow_color.a == 0)) {
continue;
}
if (step == DRAW_STEP_OUTLINE && (outline_size <= 0 || font_outline_color.a == 0)) {
continue;
}
processed_glyphs_step = processed_glyphs;
Vector2 offset_step = ofs;
// Draw RTL ellipsis string when necessary.
if (rtl && ellipsis_pos >= 0) {
for (int gl_idx = ellipsis_gl_size - 1; gl_idx >= 0; gl_idx--) {
for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end + para.start > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_step >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_step < total_glyphs - visible_glyphs));
if (!skip) {
if (step == DRAW_STEP_SHADOW_OUTLINE) {
draw_glyph_shadow_outline(ellipsis_glyphs[gl_idx], ci, font_shadow_color, shadow_outline_size, offset_step, shadow_ofs);
} else if (step == DRAW_STEP_SHADOW) {
draw_glyph_shadow(ellipsis_glyphs[gl_idx], ci, font_shadow_color, offset_step, shadow_ofs);
} else if (step == DRAW_STEP_OUTLINE) {
draw_glyph_outline(ellipsis_glyphs[gl_idx], ci, font_outline_color, outline_size, offset_step);
} else if (step == DRAW_STEP_TEXT) {
draw_glyph(ellipsis_glyphs[gl_idx], ci, font_color, offset_step);
}
}
processed_glyphs_step++;
offset_step.x += ellipsis_glyphs[gl_idx].advance;
}
}
}
// Draw main text.
for (int j = 0; j < gl_size; j++) {
// Trim when necessary.
if (trim_pos >= 0) {
if (rtl) {
if (j < trim_pos) {
continue;
}
} else {
if (j >= trim_pos) {
break;
}
}
}
for (int k = 0; k < glyphs[j].repeat; k++) {
bool skip = (trim_chars && glyphs[j].end + para.start > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_step >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_step < total_glyphs - visible_glyphs));
if (!skip) {
if (step == DRAW_STEP_SHADOW_OUTLINE) {
draw_glyph_shadow_outline(glyphs[j], ci, font_shadow_color, shadow_outline_size, offset_step, shadow_ofs);
} else if (step == DRAW_STEP_SHADOW) {
draw_glyph_shadow(glyphs[j], ci, font_shadow_color, offset_step, shadow_ofs);
} else if (step == DRAW_STEP_OUTLINE) {
draw_glyph_outline(glyphs[j], ci, font_outline_color, outline_size, offset_step);
} else if (step == DRAW_STEP_TEXT) {
draw_glyph(glyphs[j], ci, font_color, offset_step);
}
}
processed_glyphs_step++;
offset_step.x += glyphs[j].advance;
}
}
// Draw LTR ellipsis string when necessary.
if (!rtl && ellipsis_pos >= 0) {
for (int gl_idx = 0; gl_idx < ellipsis_gl_size; gl_idx++) {
for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end + para.start > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_step >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_step < total_glyphs - visible_glyphs));
if (!skip) {
if (step == DRAW_STEP_SHADOW_OUTLINE) {
draw_glyph_shadow_outline(ellipsis_glyphs[gl_idx], ci, font_shadow_color, shadow_outline_size, offset_step, shadow_ofs);
} else if (step == DRAW_STEP_SHADOW) {
draw_glyph_shadow(ellipsis_glyphs[gl_idx], ci, font_shadow_color, offset_step, shadow_ofs);
} else if (step == DRAW_STEP_OUTLINE) {
draw_glyph_outline(ellipsis_glyphs[gl_idx], ci, font_outline_color, outline_size, offset_step);
} else if (step == DRAW_STEP_TEXT) {
draw_glyph(ellipsis_glyphs[gl_idx], ci, font_color, offset_step);
}
}
processed_glyphs_step++;
offset_step.x += ellipsis_glyphs[gl_idx].advance;
}
// Draw shadow outline.
if (font_shadow_color.a != 0 && shadow_outline_size > 0) {
draw_text(rtl, ellipsis_pos, ellipsis_gl_size, ellipsis_glyphs, trim_chars, para.start, visible_chars, trim_glyphs_ltr, processed_glyphs_step, processed_glyphs, visible_glyphs, trim_glyphs_rtl, total_glyphs, ci, ofs, gl_size, trim_pos, glyphs, font_shadow_color, draw_glyph_shadow_outline, shadow_outline_size, shadow_ofs);
}
// Draw shadow.
if (font_shadow_color.a > 0) {
draw_text(rtl, ellipsis_pos, ellipsis_gl_size, ellipsis_glyphs, trim_chars, para.start, visible_chars, trim_glyphs_ltr, processed_glyphs_step, processed_glyphs, visible_glyphs, trim_glyphs_rtl, total_glyphs, ci, ofs, gl_size, trim_pos, glyphs, font_shadow_color, draw_glyph_shadow, shadow_ofs);
}
// Draw stacked shadow.
if (stacked_shadow_datas.size() != 0) {
int draw_iterations = stacked_shadow_datas.size();
for (int draw_iteration_index = draw_iterations - 1; draw_iteration_index >= 0; --draw_iteration_index) {
LabelSettings::StackedShadowData stacked_shadow_data = stacked_shadow_datas[draw_iteration_index];
if (stacked_shadow_data.outline_size > 0) {
draw_text(rtl, ellipsis_pos, ellipsis_gl_size, ellipsis_glyphs, trim_chars, para.start, visible_chars, trim_glyphs_ltr, processed_glyphs_step, processed_glyphs, visible_glyphs, trim_glyphs_rtl, total_glyphs, ci, ofs, gl_size, trim_pos, glyphs, stacked_shadow_data.color, draw_glyph_shadow_outline, stacked_shadow_data.outline_size, stacked_shadow_data.offset);
}
draw_text(rtl, ellipsis_pos, ellipsis_gl_size, ellipsis_glyphs, trim_chars, para.start, visible_chars, trim_glyphs_ltr, processed_glyphs_step, processed_glyphs, visible_glyphs, trim_glyphs_rtl, total_glyphs, ci, ofs, gl_size, trim_pos, glyphs, stacked_shadow_data.color, draw_glyph_shadow, stacked_shadow_data.offset);
}
}
// Draw stacked outline.
if (stacked_outline_datas.size() != 0) {
int stacked_outline_draw_size = outline_size;
int draw_iterations = stacked_outline_datas.size();
for (int j = 0; j < draw_iterations; j++) {
int stacked_outline_size = stacked_outline_datas[j].size;
if (stacked_outline_size <= 0) {
continue;
}
stacked_outline_draw_size += stacked_outline_size;
}
for (int draw_iteration_index = draw_iterations - 1; draw_iteration_index >= 0; --draw_iteration_index) {
LabelSettings::StackedOutlineData stacked_outline_data = stacked_outline_datas[draw_iteration_index];
if (stacked_outline_data.size <= 0) {
continue;
}
draw_text(rtl, ellipsis_pos, ellipsis_gl_size, ellipsis_glyphs, trim_chars, para.start, visible_chars, trim_glyphs_ltr, processed_glyphs_step, processed_glyphs, visible_glyphs, trim_glyphs_rtl, total_glyphs, ci, ofs, gl_size, trim_pos, glyphs, stacked_outline_data.color, draw_glyph_outline, stacked_outline_draw_size);
stacked_outline_draw_size -= stacked_outline_data.size;
}
}
// Draw outline.
if (outline_size > 0 && font_outline_color.a != 0) {
draw_text(rtl, ellipsis_pos, ellipsis_gl_size, ellipsis_glyphs, trim_chars, para.start, visible_chars, trim_glyphs_ltr, processed_glyphs_step, processed_glyphs, visible_glyphs, trim_glyphs_rtl, total_glyphs, ci, ofs, gl_size, trim_pos, glyphs, font_outline_color, draw_glyph_outline, outline_size);
}
// Draw text.
{
draw_text(rtl, ellipsis_pos, ellipsis_gl_size, ellipsis_glyphs, trim_chars, para.start, visible_chars, trim_glyphs_ltr, processed_glyphs_step, processed_glyphs, visible_glyphs, trim_glyphs_rtl, total_glyphs, ci, ofs, gl_size, trim_pos, glyphs, font_color, draw_glyph);
}
processed_glyphs = processed_glyphs_step;
ofs.y += dsc + line_spacing;
}