ui work

1 files changed, 565 insertions, 565 deletions

diff --git a/src/render.c b/src/render.c
index 11583b1..3a681d9 100644
--- a/src/render.c
+++ b/src/render.c
@@ -1,566 +1,566 @@
-/* 
-*  BSD 2-Clause “Simplified” License
-*  Copyright (c) 2019, Aldrik Ramaekers, aldrik.ramaekers@protonmail.com
-*  All rights reserved.
-*/
-
-inline void render_clear()
-{
-	glClearColor(255/255.0, 255/255.0, 255/255.0, 1.0);
-	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-inline void render_set_rotation(float32 rotation, float32 x, float32 y, s32 depth)
-{
-	glRotatef(rotation, x, y, depth);
-}
-
-inline void set_render_depth(s32 depth)
-{
-	render_depth = depth;
-}
-
-void render_image(image *image, s32 x, s32 y, s32 width, s32 height)
-{
-	assert(image);
-	if (image->loaded)
-	{
-		glBindTexture(GL_TEXTURE_2D, image->textureID);
-		glEnable(GL_TEXTURE_2D);
-		glBegin(GL_QUADS);
-		glColor4f(1., 1., 1., 1.);
-		glTexCoord2i(0, 0); glVertex3i(x, y, render_depth);
-		glTexCoord2i(0, 1); glVertex3i(x, y+height, render_depth);
-		glTexCoord2i(1, 1); glVertex3i(x+width, y+height, render_depth);
-		glTexCoord2i(1, 0); glVertex3i(x+width, y, render_depth);
-		glEnd();
-		
-		glDisable(GL_TEXTURE_2D);
-	}
-}
-
-void render_image_tint(image *image, s32 x, s32 y, s32 width, s32 height, color tint)
-{
-	assert(image);
-	if (image->loaded)
-	{
-		glBindTexture(GL_TEXTURE_2D, image->textureID);
-		glEnable(GL_TEXTURE_2D);
-		glBegin(GL_QUADS);
-		glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); 
-		glTexCoord2i(0, 0); glVertex3i(x, y, render_depth);
-		glTexCoord2i(0, 1); glVertex3i(x, y+height, render_depth);
-		glTexCoord2i(1, 1); glVertex3i(x+width, y+height, render_depth);
-		glTexCoord2i(1, 0); glVertex3i(x+width, y, render_depth);
-		glEnd();
-		
-		glDisable(GL_TEXTURE_2D);
-	}
-}
-
-s32 render_text_ellipsed(font *font, s32 x, s32 y, s32 maxw, 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); 
-	
-	char *ellipse = "...";
-	bool in_ellipse = false;
-	
-	s32 len = utf8len(text);
-	
-	s32 x_ = x;
-	utf8_int32_t ch;
-	s32 count = 0;
-	while((text = utf8codepoint(text, &ch)) && ch)
-	{
-		count++;
-		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;
-		}
-		if (ch == '\n') ch = 0xB6;
-		
-		glyph g = font->glyphs[ch];
-		
-		glBindTexture(GL_TEXTURE_2D, g.textureID);
-		glBegin(GL_QUADS);
-		
-		s32 width = g.width;
-		
-		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);
-		
-		if (!in_ellipse && (x_-x) > maxw-(font->glyphs['.'].width*3) && count < len-3)
-		{
-			in_ellipse = true;
-			text = ellipse;
-		}
-	}
-	
-	glDisable(GL_TEXTURE_2D);
-	
-	return maxw;
-}
-
-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;
-	
-	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;
-	s32 index = 0;
-	s32 selection_start_x = x_;
-	s32 selection_end_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;
-		}
-		if (ch == '\n') ch = 0xB6;
-		
-		glyph g = font->glyphs[ch];
-		
-		glBindTexture(GL_TEXTURE_2D, g.textureID);
-		glBegin(GL_QUADS);
-		
-		s32 width = g.width;
-		
-		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;
-		}
-		if (ch == '\n') ch = 0xB6;
-		
-		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;
-		}
-		if (ch == '\n') ch = 0xB6;
-		
-		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);
-	}
-	
-	glDisable(GL_TEXTURE_2D);
-	
-	return x_ - x;
-}
-
-s32 render_text_cutoff(font *font, s32 x, s32 y, char *text, color tint, u16 cutoff_width)
-{
-	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;
-	s32 y_ = y;
-	bool is_new_line = false;
-	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;
-		}
-		
-		if (ch == '\n')
-		{
-			x_ = x;
-			y_ += font->size;
-			is_new_line = true;
-			continue;
-		}
-		
-		if (is_new_line && ch == ' ')
-		{
-			is_new_line = false;
-			continue;
-		}
-		else if (is_new_line && ch != ' ')
-		{
-			is_new_line = false;
-		}
-		
-		
-		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);
-		
-		if (x_ > x+cutoff_width)
-		{
-			x_ = x;
-			y_ += font->size;
-			is_new_line = true;
-		}
-	}
-	
-	glDisable(GL_TEXTURE_2D);
-	
-	return (y_ - y) + font->size;
-	
-}
-
-s32 calculate_cursor_position(font *font, char *text, s32 click_x)
-{
-	if (!font->loaded)
-		return 0;
-	
-	s32 x = 0;
-	s32 index = 0;
-	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;
-		}
-		if (ch == '\n') ch = 0xB6;
-		
-		glyph g = font->glyphs[ch];
-		
-		s32 width = g.width;
-		s32 width_next = font->glyphs[ch_next].width;
-		
-		
-		/* add kerning */
-		//kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
-		x += (g.advance);
-		if (x - (width_next/5) > click_x)
-		{
-			return index;
-		}
-		
-		++index;
-	}
-	
-	return index;
-}
-
-s32 calculate_text_width_from_upto(font *font, char *text, s32 from, s32 index)
-{
-	if (!font->loaded)
-		return 0;
-	
-	s32 x = 0;
-	utf8_int32_t ch;
-	s32 i = 0;
-	while((text = utf8codepoint(text, &ch)) && ch)
-	{
-		if (index == i) return x;
-		
-		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;
-		}
-		if (ch == '\n') ch = 0xB6;
-		
-		glyph g = font->glyphs[ch];
-		s32 width = g.width;
-		
-		if (i >= from)
-		{
-			/* add kerning */
-			//kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
-			x += (g.advance);
-		}
-		
-		i++;
-	}
-	
-	return x;
-}
-
-s32 calculate_text_width_upto(font *font, char *text, s32 index)
-{
-	if (!font->loaded)
-		return 0;
-	
-	s32 x = 0;
-	utf8_int32_t ch;
-	s32 i = 0;
-	while((text = utf8codepoint(text, &ch)) && ch)
-	{
-		if (index == i) return x;
-		
-		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;
-		}
-		if (ch == '\n') ch = 0xB6;
-		
-		glyph g = font->glyphs[ch];
-		s32 width = g.width;
-		
-		/* add kerning */
-		//kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
-		x += (g.advance);
-		
-		i++;
-	}
-	
-	return x;
-}
-
-s32 calculate_text_width(font *font, char *text)
-{
-	if (!font->loaded)
-		return 0;
-	
-	float x = 0;
-	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;
-		}
-		if (ch == '\n') ch = 0xB6;
-		
-		glyph g = font->glyphs[ch];
-		s32 width = g.width;
-		
-		/* add kerning */
-		//kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);
-		x += (g.advance);
-	}
-	
-	return x;
-}
-
-void render_triangle(s32 x, s32 y, s32 w, s32 h, color tint)
-{
-	glBegin(GL_TRIANGLES);
-	glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); 
-	glVertex3i(x+(w/2), y+h, render_depth);
-	glVertex3i(x, y, render_depth);
-	glVertex3i(x+w, y, render_depth);
-	glEnd();
-}
-
-void render_rectangle(s32 x, s32 y, s32 width, s32 height, color tint)
-{
-	glBegin(GL_QUADS);
-	glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); 
-	glVertex3i(x, y, render_depth);
-	glVertex3i(x, y+height, render_depth);
-	glVertex3i(x+width, y+height, render_depth);
-	glVertex3i(x+width, y, render_depth);
-	glEnd();
-}
-
-void render_rectangle_tint(s32 x, s32 y, s32 width, s32 height, color tint[4])
-{
-	glBegin(GL_QUADS);
-	glColor4f(tint[0].r/255.0f, tint[0].g/255.0f, tint[0].b/255.0f, tint[0].a/255.0f);
-	glVertex3i(x, y, render_depth);
-	glColor4f(tint[1].r/255.0f, tint[1].g/255.0f, tint[1].b/255.0f, tint[1].a/255.0f);
-	glVertex3i(x, y+height, render_depth);
-	glColor4f(tint[2].r/255.0f, tint[2].g/255.0f, tint[2].b/255.0f, tint[2].a/255.0f); 
-	glVertex3i(x+width, y+height, render_depth);
-	glColor4f(tint[3].r/255.0f, tint[3].g/255.0f, tint[3].b/255.0f, tint[3].a/255.0f);
-	glVertex3i(x+width, y, render_depth);
-	glEnd();
-}
-
-void render_rectangle_outline(s32 x, s32 y, s32 width, s32 height, u16 outline_w, color tint)
-{
-	// left
-	render_rectangle(x, y, outline_w, height, tint);
-	// right
-	render_rectangle(x+width-outline_w, y, outline_w, height, tint);
-	// top
-	render_rectangle(x+outline_w, y, width-(outline_w*2), outline_w, tint);
-	// bottom
-	render_rectangle(x+outline_w, y+height-outline_w, width-(outline_w*2), outline_w, tint);
-}
-
-void render_set_scissor(platform_window *window, s32 x, s32 y, s32 w, s32 h)
-{
-	glEnable(GL_SCISSOR_TEST);
-	glScissor(x-1, window->height-h-y-1, w+1, h+1);
-}
-
-vec4 render_get_scissor()
-{
-	vec4 vec;
-	glGetIntegerv(GL_SCISSOR_BOX, (GLint*)(&vec));
-	vec.x += 1;
-	vec.y += 1;
-	vec.w -= 1;
-	vec.h -= 1;
-	return vec;
-}
-
-void render_reset_scissor()
-{
-	glDisable(GL_SCISSOR_TEST);
+/* 

+*  BSD 2-Clause “Simplified” License

+*  Copyright (c) 2019, Aldrik Ramaekers, aldrik.ramaekers@protonmail.com

+*  All rights reserved.

+*/

+

+inline void render_clear()

+{

+	glClearColor(255/255.0, 255/255.0, 255/255.0, 1.0);

+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

+}

+

+inline void render_set_rotation(float32 rotation, float32 x, float32 y, s32 depth)

+{

+	glRotatef(rotation, x, y, depth);

+}

+

+inline void set_render_depth(s32 depth)

+{

+	render_depth = depth;

+}

+

+void render_image(image *image, s32 x, s32 y, s32 width, s32 height)

+{

+	assert(image);

+	if (image->loaded)

+	{

+		glBindTexture(GL_TEXTURE_2D, image->textureID);

+		glEnable(GL_TEXTURE_2D);

+		glBegin(GL_QUADS);

+		glColor4f(1., 1., 1., 1.);

+		glTexCoord2i(0, 0); glVertex3i(x, y, render_depth);

+		glTexCoord2i(0, 1); glVertex3i(x, y+height, render_depth);

+		glTexCoord2i(1, 1); glVertex3i(x+width, y+height, render_depth);

+		glTexCoord2i(1, 0); glVertex3i(x+width, y, render_depth);

+		glEnd();

+		

+		glDisable(GL_TEXTURE_2D);

+	}

+}

+

+void render_image_tint(image *image, s32 x, s32 y, s32 width, s32 height, color tint)

+{

+	assert(image);

+	if (image->loaded)

+	{

+		glBindTexture(GL_TEXTURE_2D, image->textureID);

+		glEnable(GL_TEXTURE_2D);

+		glBegin(GL_QUADS);

+		glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); 

+		glTexCoord2i(0, 0); glVertex3i(x, y, render_depth);

+		glTexCoord2i(0, 1); glVertex3i(x, y+height, render_depth);

+		glTexCoord2i(1, 1); glVertex3i(x+width, y+height, render_depth);

+		glTexCoord2i(1, 0); glVertex3i(x+width, y, render_depth);

+		glEnd();

+		

+		glDisable(GL_TEXTURE_2D);

+	}

+}

+

+s32 render_text_ellipsed(font *font, s32 x, s32 y, s32 maxw, 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); 

+	

+	char *ellipse = "...";

+	bool in_ellipse = false;

+	

+	s32 len = utf8len(text);

+	

+	s32 x_ = x;

+	utf8_int32_t ch;

+	s32 count = 0;

+	while((text = utf8codepoint(text, &ch)) && ch)

+	{

+		count++;

+		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;

+		}

+		if (ch == '\n') ch = 0xB6;

+		

+		glyph g = font->glyphs[ch];

+		

+		glBindTexture(GL_TEXTURE_2D, g.textureID);

+		glBegin(GL_QUADS);

+		

+		s32 width = g.width;

+		

+		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);

+		

+		if (!in_ellipse && (x_-x) > maxw-(font->glyphs['.'].width*3) && count < len-3)

+		{

+			in_ellipse = true;

+			text = ellipse;

+		}

+	}

+	

+	glDisable(GL_TEXTURE_2D);

+	

+	return maxw;

+}

+

+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;

+	

+	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;

+	s32 index = 0;

+	s32 selection_start_x = x_;

+	s32 selection_end_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;

+		}

+		if (ch == '\n') ch = 0xB6;

+		

+		glyph g = font->glyphs[ch];

+		

+		glBindTexture(GL_TEXTURE_2D, g.textureID);

+		glBegin(GL_QUADS);

+		

+		s32 width = g.width;

+		

+		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;

+		}

+		if (ch == '\n') ch = 0xB6;

+		

+		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;

+		}

+		if (ch == '\n') ch = 0xB6;

+		

+		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);

+	}

+	

+	glDisable(GL_TEXTURE_2D);

+	

+	return x_ - x;

+}

+

+s32 render_text_cutoff(font *font, s32 x, s32 y, char *text, color tint, u16 cutoff_width)

+{

+	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;

+	s32 y_ = y;

+	bool is_new_line = false;

+	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;

+		}

+		

+		if (ch == '\n')

+		{

+			x_ = x;

+			y_ += font->size;

+			is_new_line = true;

+			continue;

+		}

+		

+		if (is_new_line && ch == ' ')

+		{

+			is_new_line = false;

+			continue;

+		}

+		else if (is_new_line && ch != ' ')

+		{

+			is_new_line = false;

+		}

+		

+		

+		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);

+		

+		if (x_ > x+cutoff_width)

+		{

+			x_ = x;

+			y_ += font->size;

+			is_new_line = true;

+		}

+	}

+	

+	glDisable(GL_TEXTURE_2D);

+	

+	return (y_ - y) + font->size;

+	

+}

+

+s32 calculate_cursor_position(font *font, char *text, s32 click_x)

+{

+	if (!font->loaded)

+		return 0;

+	

+	s32 x = 0;

+	s32 index = 0;

+	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;

+		}

+		if (ch == '\n') ch = 0xB6;

+		

+		glyph g = font->glyphs[ch];

+		

+		s32 width = g.width;

+		s32 width_next = font->glyphs[ch_next].width;

+		

+		

+		/* add kerning */

+		//kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);

+		x += (g.advance);

+		if (x - (width_next/5) > click_x)

+		{

+			return index;

+		}

+		

+		++index;

+	}

+	

+	return index;

+}

+

+s32 calculate_text_width_from_upto(font *font, char *text, s32 from, s32 index)

+{

+	if (!font->loaded)

+		return 0;

+	

+	s32 x = 0;

+	utf8_int32_t ch;

+	s32 i = 0;

+	while((text = utf8codepoint(text, &ch)) && ch)

+	{

+		if (index == i) return x;

+		

+		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;

+		}

+		if (ch == '\n') ch = 0xB6;

+		

+		glyph g = font->glyphs[ch];

+		s32 width = g.width;

+		

+		if (i >= from)

+		{

+			/* add kerning */

+			//kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);

+			x += (g.advance);

+		}

+		

+		i++;

+	}

+	

+	return x;

+}

+

+s32 calculate_text_width_upto(font *font, char *text, s32 index)

+{

+	if (!font->loaded)

+		return 0;

+	

+	s32 x = 0;

+	utf8_int32_t ch;

+	s32 i = 0;

+	while((text = utf8codepoint(text, &ch)) && ch)

+	{

+		if (index == i) return x;

+		

+		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;

+		}

+		if (ch == '\n') ch = 0xB6;

+		

+		glyph g = font->glyphs[ch];

+		s32 width = g.width;

+		

+		/* add kerning */

+		//kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);

+		x += (g.advance);

+		

+		i++;

+	}

+	

+	return x;

+}

+

+s32 calculate_text_width(font *font, char *text)

+{

+	if (!font->loaded)

+		return 0;

+	

+	float x = 0;

+	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;

+		}

+		if (ch == '\n') ch = 0xB6;

+		

+		glyph g = font->glyphs[ch];

+		s32 width = g.width;

+		

+		/* add kerning */

+		//kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next);

+		x += (g.advance);

+	}

+	

+	return x;

+}

+

+void render_triangle(s32 x, s32 y, s32 w, s32 h, color tint)

+{

+	glBegin(GL_TRIANGLES);

+	glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); 

+	glVertex3i(x+(w/2), y+h, render_depth);

+	glVertex3i(x, y, render_depth);

+	glVertex3i(x+w, y, render_depth);

+	glEnd();

+}

+

+void render_rectangle(s32 x, s32 y, s32 width, s32 height, color tint)

+{

+	glBegin(GL_QUADS);

+	glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); 

+	glVertex3i(x, y, render_depth);

+	glVertex3i(x, y+height, render_depth);

+	glVertex3i(x+width, y+height, render_depth);

+	glVertex3i(x+width, y, render_depth);

+	glEnd();

+}

+

+void render_rectangle_tint(s32 x, s32 y, s32 width, s32 height, color tint[4])

+{

+	glBegin(GL_QUADS);

+	glColor4f(tint[0].r/255.0f, tint[0].g/255.0f, tint[0].b/255.0f, tint[0].a/255.0f);

+	glVertex3i(x, y, render_depth);

+	glColor4f(tint[1].r/255.0f, tint[1].g/255.0f, tint[1].b/255.0f, tint[1].a/255.0f);

+	glVertex3i(x, y+height, render_depth);

+	glColor4f(tint[2].r/255.0f, tint[2].g/255.0f, tint[2].b/255.0f, tint[2].a/255.0f); 

+	glVertex3i(x+width, y+height, render_depth);

+	glColor4f(tint[3].r/255.0f, tint[3].g/255.0f, tint[3].b/255.0f, tint[3].a/255.0f);

+	glVertex3i(x+width, y, render_depth);

+	glEnd();

+}

+

+void render_rectangle_outline(s32 x, s32 y, s32 width, s32 height, u16 outline_w, color tint)

+{

+	// left

+	render_rectangle(x, y, outline_w, height, tint);

+	// right

+	render_rectangle(x+width-outline_w, y, outline_w, height, tint);

+	// top

+	render_rectangle(x+outline_w, y, width-(outline_w*2), outline_w, tint);

+	// bottom

+	render_rectangle(x+outline_w, y+height-outline_w, width-(outline_w*2), outline_w, tint);

+}

+

+void render_set_scissor(platform_window *window, s32 x, s32 y, s32 w, s32 h)

+{

+	glEnable(GL_SCISSOR_TEST);

+	glScissor(x-1, window->height-h-y-1, w+1, h+1);

+}

+

+vec4 render_get_scissor()

+{

+	vec4 vec;

+	glGetIntegerv(GL_SCISSOR_BOX, (GLint*)(&vec));

+	vec.x += 1;

+	vec.y += 1;

+	vec.w -= 1;

+	vec.h -= 1;

+	return vec;

+}

+

+void render_reset_scissor()

+{

+	glDisable(GL_SCISSOR_TEST);

 }
\ No newline at end of file