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https://github.com/godotengine/godot
synced 2024-09-05 06:48:38 +00:00
[Label] Move shadow drawing into a separate draw step.
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0175be8948
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@ -316,7 +316,7 @@ inline void draw_glyph(const Glyph &p_gl, const RID &p_canvas, const Color &p_fo
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}
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}
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inline void draw_glyph_outline(const Glyph &p_gl, const RID &p_canvas, const Color &p_font_color, const Color &p_font_shadow_color, const Color &p_font_outline_color, const int &p_shadow_outline_size, const int &p_outline_size, const Vector2 &p_ofs, const Vector2 &shadow_ofs) {
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inline void draw_glyph_shadow(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) {
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if (p_gl.font_rid != RID()) {
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if (p_font_shadow_color.a > 0) {
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TS->font_draw_glyph(p_gl.font_rid, p_canvas, p_gl.font_size, p_ofs + Vector2(p_gl.x_off, p_gl.y_off) + shadow_ofs, p_gl.index, p_font_shadow_color);
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@ -324,6 +324,11 @@ inline void draw_glyph_outline(const Glyph &p_gl, const RID &p_canvas, const Col
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if (p_font_shadow_color.a > 0 && p_shadow_outline_size > 0) {
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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);
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}
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}
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}
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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) {
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if (p_gl.font_rid != RID()) {
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if (p_font_outline_color.a != 0.0 && p_outline_size > 0) {
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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);
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}
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@ -537,25 +542,36 @@ void Label::_notification(int p_what) {
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const Glyph *ellipsis_glyphs = TS->shaped_text_get_ellipsis_glyphs(lines_rid[i]);
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int ellipsis_gl_size = TS->shaped_text_get_ellipsis_glyph_count(lines_rid[i]);
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// Draw outline. Note: Do not merge this into the single loop with the main text, to prevent overlaps.
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int processed_glyphs_ol = processed_glyphs;
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if ((outline_size > 0 && font_outline_color.a != 0) || (font_shadow_color.a != 0)) {
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Vector2 offset = ofs;
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// Draw shadow, outline and text. Note: Do not merge this into the single loop iteration, to prevent overlaps.
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for (int step = DRAW_STEP_SHADOW; step < DRAW_STEP_MAX; step++) {
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if (step == DRAW_STEP_SHADOW && (font_shadow_color.a == 0)) {
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continue;
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}
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if (step == DRAW_STEP_OUTLINE && (outline_size <= 0 || font_outline_color.a == 0)) {
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continue;
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}
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int processed_glyphs_step = processed_glyphs;
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Vector2 offset_step = ofs;
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// Draw RTL ellipsis string when necessary.
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if (rtl && ellipsis_pos >= 0) {
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for (int gl_idx = ellipsis_gl_size - 1; gl_idx >= 0; gl_idx--) {
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for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
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bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_ol >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_ol < total_glyphs - visible_glyphs));
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//Draw glyph outlines and shadow.
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bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_step >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_step < total_glyphs - visible_glyphs));
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if (!skip) {
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draw_glyph_outline(ellipsis_glyphs[gl_idx], ci, font_color, font_shadow_color, font_outline_color, shadow_outline_size, outline_size, offset, shadow_ofs);
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if (step == DRAW_STEP_SHADOW) {
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draw_glyph_shadow(ellipsis_glyphs[gl_idx], ci, font_shadow_color, shadow_outline_size, offset_step, shadow_ofs);
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} else if (step == DRAW_STEP_OUTLINE) {
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draw_glyph_outline(ellipsis_glyphs[gl_idx], ci, font_outline_color, outline_size, offset_step);
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} else if (step == DRAW_STEP_TEXT) {
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draw_glyph(ellipsis_glyphs[gl_idx], ci, font_color, offset_step);
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}
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}
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processed_glyphs_ol++;
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offset.x += ellipsis_glyphs[gl_idx].advance;
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processed_glyphs_step++;
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offset_step.x += ellipsis_glyphs[gl_idx].advance;
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}
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}
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}
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// Draw main text.
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for (int j = 0; j < gl_size; j++) {
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// Trim when necessary.
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@ -571,88 +587,40 @@ void Label::_notification(int p_what) {
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}
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}
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for (int k = 0; k < glyphs[j].repeat; k++) {
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bool skip = (trim_chars && glyphs[j].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_ol >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_ol < total_glyphs - visible_glyphs));
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// Draw glyph outlines and shadow.
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bool skip = (trim_chars && glyphs[j].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_step >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_step < total_glyphs - visible_glyphs));
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if (!skip) {
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draw_glyph_outline(glyphs[j], ci, font_color, font_shadow_color, font_outline_color, shadow_outline_size, outline_size, offset, shadow_ofs);
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if (step == DRAW_STEP_SHADOW) {
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draw_glyph_shadow(glyphs[j], ci, font_shadow_color, shadow_outline_size, offset_step, shadow_ofs);
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} else if (step == DRAW_STEP_OUTLINE) {
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draw_glyph_outline(glyphs[j], ci, font_outline_color, outline_size, offset_step);
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} else if (step == DRAW_STEP_TEXT) {
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draw_glyph(glyphs[j], ci, font_color, offset_step);
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}
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}
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processed_glyphs_ol++;
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offset.x += glyphs[j].advance;
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processed_glyphs_step++;
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offset_step.x += glyphs[j].advance;
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}
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}
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// Draw LTR ellipsis string when necessary.
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if (!rtl && ellipsis_pos >= 0) {
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for (int gl_idx = 0; gl_idx < ellipsis_gl_size; gl_idx++) {
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for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
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bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_ol >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_ol < total_glyphs - visible_glyphs));
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//Draw glyph outlines and shadow.
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bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_step >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_step < total_glyphs - visible_glyphs));
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if (!skip) {
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draw_glyph_outline(ellipsis_glyphs[gl_idx], ci, font_color, font_shadow_color, font_outline_color, shadow_outline_size, outline_size, offset, shadow_ofs);
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if (step == DRAW_STEP_SHADOW) {
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draw_glyph_shadow(ellipsis_glyphs[gl_idx], ci, font_shadow_color, shadow_outline_size, offset_step, shadow_ofs);
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} else if (step == DRAW_STEP_OUTLINE) {
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draw_glyph_outline(ellipsis_glyphs[gl_idx], ci, font_outline_color, outline_size, offset_step);
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} else if (step == DRAW_STEP_TEXT) {
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draw_glyph(ellipsis_glyphs[gl_idx], ci, font_color, offset_step);
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}
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}
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processed_glyphs_ol++;
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offset.x += ellipsis_glyphs[gl_idx].advance;
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processed_glyphs_step++;
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offset_step.x += ellipsis_glyphs[gl_idx].advance;
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}
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}
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}
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}
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// Draw main text. Note: Do not merge this into the single loop with the outline, to prevent overlaps.
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// Draw RTL ellipsis string when necessary.
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if (rtl && ellipsis_pos >= 0) {
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for (int gl_idx = ellipsis_gl_size - 1; gl_idx >= 0; gl_idx--) {
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for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
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bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs < total_glyphs - visible_glyphs));
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//Draw glyph outlines and shadow.
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if (!skip) {
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draw_glyph(ellipsis_glyphs[gl_idx], ci, font_color, ofs);
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}
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processed_glyphs++;
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ofs.x += ellipsis_glyphs[gl_idx].advance;
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}
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}
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}
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// Draw main text.
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for (int j = 0; j < gl_size; j++) {
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// Trim when necessary.
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if (trim_pos >= 0) {
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if (rtl) {
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if (j < trim_pos) {
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continue;
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}
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} else {
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if (j >= trim_pos) {
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break;
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}
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}
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}
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for (int k = 0; k < glyphs[j].repeat; k++) {
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bool skip = (trim_chars && glyphs[j].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs < total_glyphs - visible_glyphs));
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// Draw glyph outlines and shadow.
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if (!skip) {
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draw_glyph(glyphs[j], ci, font_color, ofs);
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}
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processed_glyphs++;
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ofs.x += glyphs[j].advance;
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}
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}
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// Draw LTR ellipsis string when necessary.
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if (!rtl && ellipsis_pos >= 0) {
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for (int gl_idx = 0; gl_idx < ellipsis_gl_size; gl_idx++) {
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for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
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bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs < total_glyphs - visible_glyphs));
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//Draw glyph outlines and shadow.
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if (!skip) {
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draw_glyph(ellipsis_glyphs[gl_idx], ci, font_color, ofs);
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}
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processed_glyphs++;
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ofs.x += ellipsis_glyphs[gl_idx].advance;
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}
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}
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}
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ofs.y += TS->shaped_text_get_descent(lines_rid[i]) + vsep + line_spacing;
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}
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} break;
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@ -38,6 +38,13 @@ class Label : public Control {
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GDCLASS(Label, Control);
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private:
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enum LabelDrawStep {
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DRAW_STEP_SHADOW,
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DRAW_STEP_OUTLINE,
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DRAW_STEP_TEXT,
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DRAW_STEP_MAX,
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};
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HorizontalAlignment horizontal_alignment = HORIZONTAL_ALIGNMENT_LEFT;
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VerticalAlignment vertical_alignment = VERTICAL_ALIGNMENT_TOP;
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String text;
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