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Diffstat (limited to 'src/render.c')
-rw-r--r--src/render.c174
1 files changed, 132 insertions, 42 deletions
diff --git a/src/render.c b/src/render.c
index 666b2f9..7f61ce8 100644
--- a/src/render.c
+++ b/src/render.c
@@ -88,11 +88,8 @@ s32 render_text_ellipsed(font *font, s32 x, s32 y, s32 maxw, char *text, color t
s32 width = g.width;
- int advance, lsb, kern;
- stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb);
-
s32 y_ = y + font->px_h + g.yoff;
- s32 x_to_render = x_ + (lsb*font->scale);
+ s32 x_to_render = x_ + (g.lsb);
glTexCoord2i(0, 0); glVertex3i(x_to_render,y_, render_depth);
glTexCoord2i(0, 1); glVertex3i(x_to_render,y_+g.height, render_depth);
@@ -102,8 +99,8 @@ s32 render_text_ellipsed(font *font, s32 x, s32 y, s32 maxw, char *text, color t
glEnd();
/* add kerning */
- kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
- x_ += (advance*font->scale)+(kern*font->scale);
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x_ += (g.advance);
if (!in_ellipse && (x_-x) > maxw-(font->glyphs['.'].width*3))
{
@@ -117,7 +114,7 @@ s32 render_text_ellipsed(font *font, s32 x, s32 y, s32 maxw, char *text, color t
return maxw;
}
-s32 render_text(font *font, s32 x, s32 y, char *text, color tint)
+s32 render_text_with_selection(font *font, s32 x, s32 y, char *text, color tint, s32 selection_start, s32 selection_length)
{
if (!font->loaded)
return 0;
@@ -127,6 +124,9 @@ s32 render_text(font *font, s32 x, s32 y, char *text, color tint)
s32 x_ = x;
utf8_int32_t ch;
+ s32 index = 0;
+ s32 selection_start_x = x_;
+ s32 selection_end_x = x_;
while((text = utf8codepoint(text, &ch)) && ch)
{
if (ch == 9) ch = 32;
@@ -144,11 +144,119 @@ s32 render_text(font *font, s32 x, s32 y, char *text, color tint)
s32 width = g.width;
- int advance, lsb, kern;
- stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb);
+ s32 y_ = y + font->px_h + g.yoff;
+ s32 x_to_render = x_ + (g.lsb);
+
+ glTexCoord2i(0, 0); glVertex3i(x_to_render,y_, render_depth);
+ glTexCoord2i(0, 1); glVertex3i(x_to_render,y_+g.height, render_depth);
+ glTexCoord2i(1, 1); glVertex3i(x_to_render+g.width,y_+g.height, render_depth);
+ glTexCoord2i(1, 0); glVertex3i(x_to_render+g.width,y_, render_depth);
+
+ glEnd();
+
+ /* add kerning */
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x_ += (g.advance);
+
+ index++;
+ if (index == selection_start)
+ {
+ selection_start_x = x_;
+ }
+ if (index == selection_start+selection_length)
+ {
+ selection_end_x = x_;
+ }
+ }
+
+ glDisable(GL_TEXTURE_2D);
+
+ render_rectangle(selection_start_x, y-3, selection_end_x-selection_start_x, TEXTBOX_HEIGHT - 10, rgba(66, 134, 244, 120));
+
+ return x_ - x;
+}
+
+s32 render_text_with_cursor(font *font, s32 x, s32 y, char *text, color tint, s32 cursor_pos)
+{
+ if (!font->loaded)
+ return 0;
+
+ glEnable(GL_TEXTURE_2D);
+ glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f);
+
+ float x_ = x;
+ utf8_int32_t ch;
+ s32 index = 0;
+ s32 cursor_x = x_;
+ while((text = utf8codepoint(text, &ch)) && ch)
+ {
+ if (ch == 9) ch = 32;
+ utf8_int32_t ch_next;
+ utf8codepoint(text, &ch_next);
+ if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END)
+ {
+ ch = 0x3f;
+ }
+
+ glyph g = font->glyphs[ch];
+
+ glBindTexture(GL_TEXTURE_2D, g.textureID);
+ glBegin(GL_QUADS);
+
+ s32 y_ = y + font->px_h + g.yoff;
+ s32 x_to_render = x_ + (g.lsb);
+
+ glTexCoord2i(0, 0); glVertex3i(x_to_render,y_, render_depth);
+ glTexCoord2i(0, 1); glVertex3i(x_to_render,y_+g.height, render_depth);
+ glTexCoord2i(1, 1); glVertex3i(x_to_render+g.width,y_+g.height, render_depth);
+ glTexCoord2i(1, 0); glVertex3i(x_to_render+g.width,y_, render_depth);
+
+ glEnd();
+
+ /* add kerning */
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x_ += (g.advance);
+ index++;
+
+ if (index == cursor_pos)
+ {
+ cursor_x = x_;
+ }
+ }
+ glDisable(GL_TEXTURE_2D);
+
+ render_rectangle(cursor_x, y-3, 2, TEXTBOX_HEIGHT - 10, global_ui_context.style.textbox_foreground);
+
+ return x_ - x;
+}
+
+s32 render_text(font *font, s32 x, s32 y, char *text, color tint)
+{
+ if (!font->loaded)
+ return 0;
+
+ glEnable(GL_TEXTURE_2D);
+ glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f);
+
+ s32 x_ = x;
+ utf8_int32_t ch;
+ while((text = utf8codepoint(text, &ch)) && ch)
+ {
+ if (ch == 9) ch = 32;
+ utf8_int32_t ch_next;
+ utf8codepoint(text, &ch_next);
+ if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END)
+ {
+ ch = 0x3f;
+ }
+
+ glyph g = font->glyphs[ch];
+
+ glBindTexture(GL_TEXTURE_2D, g.textureID);
+ glBegin(GL_QUADS);
s32 y_ = y + font->px_h + g.yoff;
- s32 x_to_render = x_ + (lsb*font->scale);
+ s32 x_to_render = x_ + (g.lsb);
glTexCoord2i(0, 0); glVertex3i(x_to_render,y_, render_depth);
glTexCoord2i(0, 1); glVertex3i(x_to_render,y_+g.height, render_depth);
@@ -158,8 +266,8 @@ s32 render_text(font *font, s32 x, s32 y, char *text, color tint)
glEnd();
/* add kerning */
- kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
- x_ += (advance*font->scale)+(kern*font->scale);
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x_ += (g.advance);
}
glDisable(GL_TEXTURE_2D);
@@ -213,13 +321,8 @@ s32 render_text_cutoff(font *font, s32 x, s32 y, char *text, color tint, u16 cut
glBindTexture(GL_TEXTURE_2D, g.textureID);
glBegin(GL_QUADS);
- s32 width = g.width;
-
- int advance, lsb, kern;
- stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb);
-
s32 y__ = y_ + font->px_h + g.yoff;
- s32 x_to_render = x_ + (lsb*font->scale);
+ s32 x_to_render = x_ + (g.lsb);
glTexCoord2i(0, 0); glVertex3i(x_to_render,y__, render_depth);
glTexCoord2i(0, 1); glVertex3i(x_to_render,y__+g.height, render_depth);
@@ -229,8 +332,8 @@ s32 render_text_cutoff(font *font, s32 x, s32 y, char *text, color tint, u16 cut
glEnd();
/* add kerning */
- kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
- x_ += (advance*font->scale)+(kern*font->scale);
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x_ += (g.advance);
if (x_ > x+cutoff_width)
{
@@ -271,13 +374,9 @@ s32 calculate_cursor_position(font *font, char *text, s32 click_x)
s32 width_next = font->glyphs[ch_next].width;
- int advance, lsb, kern;
- stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb);
-
/* add kerning */
- kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
- x += (advance*font->scale)+(kern*font->scale);
-
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x += (g.advance);
if (x - (width_next/5) > click_x)
{
return index;
@@ -314,12 +413,9 @@ s32 calculate_text_width_from_upto(font *font, char *text, s32 from, s32 index)
if (i >= from)
{
- int advance, lsb, kern;
- stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb);
-
/* add kerning */
- kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
- x += (advance*font->scale)+(kern*font->scale);
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x += (g.advance);
}
i++;
@@ -351,12 +447,9 @@ s32 calculate_text_width_upto(font *font, char *text, s32 index)
glyph g = font->glyphs[ch];
s32 width = g.width;
- int advance, lsb, kern;
- stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb);
-
/* add kerning */
- kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
- x += (advance*font->scale)+(kern*font->scale);
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x += (g.advance);
i++;
}
@@ -369,7 +462,7 @@ s32 calculate_text_width(font *font, char *text)
if (!font->loaded)
return 0;
- s32 x = 0;
+ float x = 0;
utf8_int32_t ch;
while((text = utf8codepoint(text, &ch)) && ch)
{
@@ -384,12 +477,9 @@ s32 calculate_text_width(font *font, char *text)
glyph g = font->glyphs[ch];
s32 width = g.width;
- int advance, lsb, kern;
- stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb);
-
/* add kerning */
- kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
- x += (advance*font->scale)+(kern*font->scale);
+ //kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
+ x += (g.advance);
}
return x;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 20:47:54 +0000