diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/render.c | 1130 | ||||
| -rw-r--r-- | src/ui.c | 134 | ||||
| -rw-r--r-- | src/ui.h | 438 |
3 files changed, 917 insertions, 785 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 @@ -13,6 +13,7 @@ inline void ui_begin(s32 id) global_ui_context.layout.width = global_ui_context.layout.active_window->width;
global_ui_context.layout.height = global_ui_context.layout.active_window->height;
global_ui_context.layout.active_dropdown_state = 0;
+ global_ui_context.submenus.count = 0;
}
inline void ui_end()
@@ -20,6 +21,17 @@ inline void ui_end() }
+inline submenu_state ui_create_submenu()
+{
+ submenu_state state;
+ state.open = false;
+ state.hovered = false;
+ state.item_count = 0;
+ state.w = MENU_ITEM_WIDTH;
+
+ return state;
+}
+
inline checkbox_state ui_create_checkbox(bool selected)
{
checkbox_state state;
@@ -1239,33 +1251,132 @@ inline bool is_shortcut_down(s32 shortcut_keys[2]) keyboard_is_key_pressed(global_ui_context.keyboard, shortcut_keys[1]);
}
+void ui_begin_menu_submenu(submenu_state *state, char *title)
+{
+ bool result = ui_push_menu_item(title, "");
+
+ s32 w = state->w;
+ s32 h = MENU_BAR_HEIGHT;
+ s32 x = global_ui_context.layout.prev_offset_x + global_ui_context.camera->x;
+ s32 y = global_ui_context.layout.offset_y + (global_ui_context.menu_item_count * h)+1 +
+ global_ui_context.layout.menu_offset_y + global_ui_context.camera->y;
+ s32 mouse_x = global_ui_context.mouse->x + global_ui_context.camera->x;
+ s32 mouse_y = global_ui_context.mouse->y + global_ui_context.camera->y;
+
+ state->x = x + MENU_ITEM_WIDTH;
+ state->y = y;
+ state->item_count = 0;
+
+ if ((mouse_x >= x && mouse_x < x + MENU_ITEM_WIDTH && mouse_y >= y && mouse_y < y + h))
+ {
+ state->hovered = true;
+ state->open = true;
+ }
+ else
+ {
+ state->hovered = false;
+ }
+
+ assert(global_ui_context.submenus.count <= 4);
+ global_ui_context.submenus.submenu_stack[global_ui_context.submenus.count++] = state;
+
+ if (result) state->open = false;
+}
+
+void ui_end_menu_submenu()
+{
+ set_render_depth(30);
+
+ submenu_state *state = global_ui_context.submenus.submenu_stack[global_ui_context.submenus.count-1];
+
+ s32 w = state->w;
+ s32 h = MENU_BAR_HEIGHT;
+ s32 total_h = state->item_count*h;
+ s32 mouse_x = global_ui_context.mouse->x + global_ui_context.camera->x;
+ s32 mouse_y = global_ui_context.mouse->y + global_ui_context.camera->y;
+
+ if (state->open)
+ {
+ if (!(mouse_x >= state->x && mouse_x < state->x + w && mouse_y >= state->y && mouse_y < state->y + total_h) && !state->hovered)
+ {
+ state->open = false;
+ }
+
+ if (!state->item_count)
+ {
+ s32 text_h = global_ui_context.font_small->px_h;
+ s32 text_y = state->y - (text_h / 2) + (h / 2);
+ s32 text_x = state->x + MENU_HORIZONTAL_PADDING;
+
+ total_h = h;
+ render_rectangle(state->x, state->y, w, total_h, global_ui_context.style.widget_background);
+ render_rectangle_outline(state->x, state->y, w, total_h, 1, global_ui_context.style.border);
+
+ // TODO(Aldrik): localize
+ render_text(global_ui_context.font_small, text_x, text_y, "No recent projects.", global_ui_context.style.foreground);
+ }
+ else
+ {
+ render_rectangle(state->x, state->y, w, 1, global_ui_context.style.border);
+ }
+ }
+
+
+ global_ui_context.submenus.count--;
+
+ set_render_depth(1);
+}
+
bool ui_push_menu_item(char *title, char *shortcut)
{
bool result = false;
set_render_depth(30);
- global_ui_context.menu_item_count++;
-
s32 x = global_ui_context.layout.prev_offset_x + global_ui_context.camera->x;
s32 w = MENU_ITEM_WIDTH;
s32 text_h = global_ui_context.font_small->px_h;
s32 h = MENU_BAR_HEIGHT;
- s32 y = global_ui_context.layout.offset_y + (global_ui_context.menu_item_count * h)+1 +
+ s32 y = global_ui_context.layout.offset_y + ((global_ui_context.menu_item_count+1) * h)+1 +
global_ui_context.layout.menu_offset_y + global_ui_context.camera->y;
- s32 text_y = y - (text_h / 2) + (h / 2);
- s32 text_x = x + MENU_HORIZONTAL_PADDING;
- s32 text_2_x = x + w - MENU_HORIZONTAL_PADDING
- - calculate_text_width(global_ui_context.font_small, shortcut);
s32 mouse_x = global_ui_context.mouse->x + global_ui_context.camera->x;
s32 mouse_y = global_ui_context.mouse->y + global_ui_context.camera->y;
- if (global_ui_context.layout.block_height < h)
- global_ui_context.layout.block_height = h;
-
color bg_color = global_ui_context.style.menu_background;
+ s32 text_y = 0;
+ s32 text_x = 0;
+ s32 text_2_x = 0;
+
+ submenu_state *state = 0;
+ if (global_ui_context.submenus.count)
+ {
+ state = global_ui_context.submenus.submenu_stack[global_ui_context.submenus.count-1];
+ w = state->w;
+
+ if (!state->open) return false;
+
+ x = state->x;
+ y = state->y + (state->item_count*h);
+
+ text_y = y - (text_h / 2) + (h / 2);
+ text_x = x + MENU_HORIZONTAL_PADDING;
+ text_2_x = x + w - MENU_HORIZONTAL_PADDING
+ - calculate_text_width(global_ui_context.font_small, shortcut);
+
+ state->item_count++;
+ }
+ else
+ {
+ global_ui_context.menu_item_count++;
+
+ text_y = y - (text_h / 2) + (h / 2);
+ text_x = x + MENU_HORIZONTAL_PADDING;
+ text_2_x = x + w - MENU_HORIZONTAL_PADDING
+ - calculate_text_width(global_ui_context.font_small, shortcut);
+ }
+
if ((mouse_x >= x && mouse_x < x + w && mouse_y >= y && mouse_y < y + h))
{
platform_set_cursor(global_ui_context.layout.active_window, CURSOR_POINTER);
@@ -1274,6 +1385,7 @@ bool ui_push_menu_item(char *title, char *shortcut) if (is_left_clicked(global_ui_context.mouse))
{
+ if (state) state->open = false;
global_ui_context.mouse->left_state &= ~MOUSE_CLICK;
result = true;
}
@@ -1677,7 +1789,7 @@ void ui_scroll_begin(scroll_state *state) void ui_scroll_end()
{
s32 max_scroll = (global_ui_context.layout.scroll->scroll_start_offset_y -
- global_ui_context.layout.offset_y) + global_ui_context.layout.scroll->height;
+ global_ui_context.layout.offset_y) + global_ui_context.layout.scroll->height - WIDGET_PADDING;
//global_ui_context.layout.offset_x -= WIDGET_PADDING;
global_ui_context.layout.offset_y = global_ui_context.layout.scroll->scroll_start_offset_y + global_ui_context.layout.scroll->height;
@@ -1,210 +1,230 @@ -/* -* BSD 2-Clause “Simplified” License -* Copyright (c) 2019, Aldrik Ramaekers, aldrik.ramaekers@protonmail.com -* All rights reserved. -*/ - -#ifndef INCLUDE_UI -#define INCLUDE_UI - -#define BLOCK_HEIGHT 25 -#define MENU_BAR_HEIGHT 25 -#define MENU_HORIZONTAL_PADDING 10 -#define WIDGET_PADDING 8 -#define BUTTON_HORIZONTAL_TEXT_PADDING 15 -#define MENU_ITEM_WIDTH 220 -#define CHECKBOX_SIZE BLOCK_HEIGHT - 8 - -static s32 TEXTBOX_WIDTH = 280; - -#define TEXTBOX_HEIGHT BLOCK_HEIGHT -#define BUTTON_HEIGHT BLOCK_HEIGHT -#define BUTTON_IMAGE_PADDING 5 -#define BUTTON_IMAGE_SPACING 8 -#define DROPDOWN_WIDTH 225 -#define DROPDOWN_ITEM_WIDTH 225 -#define TEXTBOX_SCROLL_X_SPEED 32 - -typedef enum t_ui_style_type -{ - UI_STYLE_LIGHT = 1, - UI_STYLE_DARK = 2, -} ui_style_type; - -typedef struct t_ui_style -{ - u16 id; - color foreground; - color background; - color border; - color textbox_background; - color textbox_active_border; - color textbox_foreground; - color image_outline_tint; - color scrollbar_handle_background; - color info_bar_background; - color error_foreground; - color item_hover_background; - color scrollbar_background; - color menu_background; - color menu_hover_background; - color menu_foreground; - color widget_hover_background; - color widget_background; - color widget_confirm_background; - color widget_confirm_hover_background; - color hypertext_foreground; - color hypertext_hover_foreground; - color textbox_placeholder_foreground; - color widget_confirm_border; -} ui_style; - -typedef enum t_layout_direction -{ - LAYOUT_HORIZONTAL, - LAYOUT_VERTICAL, -} layout_direction; - -typedef struct t_dropdown_state -{ - bool state; - int selected_index; -} dropdown_state; - -typedef struct t_scroll_state -{ - s32 height; - s32 width; - s32 x; - s32 y; - s32 scroll; - s32 scroll_start_offset_y; - bool in_scroll; - bool mouse_scrolling; -} scroll_state; - -typedef struct t_ui_layout -{ - s32 dropdown_item_count; - s32 dropdown_x; - s32 offset_x; - s32 offset_y; - platform_window *active_window; - layout_direction layout_direction; - s32 prev_offset_x; - s32 width; - s32 height; - s32 menu_offset_y; - s32 block_height; - s32 start_offset_y; - s32 start_offset_x; - scroll_state *scroll; - s32 padding; - dropdown_state *active_dropdown_state; -} ui_layout; - -typedef struct t_textbox_history_entry -{ - char *text; - s32 cursor_offset; -} textbox_history_entry; - -typedef struct t_textbox_state -{ - bool deselect_on_enter; - bool accept_newline; - char *buffer; - s32 selection_start_index; - bool state; - s32 diff; - bool double_clicked_to_select; - s32 double_clicked_to_select_cursor_index; - s32 max_len; - s32 text_offset_x; - bool attempting_to_select; - array history; - array future; - s32 last_click_cursor_index; -} textbox_state; - -typedef struct t_checkbox_state -{ - bool state; -} checkbox_state; - -typedef struct t_button_state -{ - bool state; -} button_state; - -typedef struct t_ui_context -{ - ui_style style; - ui_layout layout; - keyboard_input *keyboard; - mouse_input *mouse; - camera *camera; - font *font_small; - array active_menus; - u32 next_id; - s32 menu_item_count; - dropdown_state *active_dropdown; - u32 confirming_button_id; - textbox_state *current_active_textbox; - bool item_hovered; -} ui_context; - -ui_context global_ui_context; - -u32 ui_get_id(); -void ui_create(platform_window *window, keyboard_input *keyboard, mouse_input *mouse, camera *camera, font *font_small); -void ui_set_active_window(platform_window *window); -void ui_destroy(); -void ui_begin(); -void ui_end(); -bool ui_is_menu_active(u32 id); -char* name_of_day(s32 day); -char* name_of_month(s32 month); -void ui_set_style(u16 style); -void set_active_textbox(textbox_state *textbox); -void ui_set_textbox_text(textbox_state *textbox, char *text); -void ui_set_textbox_active(textbox_state *textbox); - -// widget initialization -checkbox_state ui_create_checkbox(bool selected); -textbox_state ui_create_textbox(u16 max_len); -button_state ui_create_button(); -scroll_state ui_create_scroll(s32 scroll); -dropdown_state ui_create_dropdown(); - -void ui_destroy_textbox(textbox_state *state); - -// widgets -bool is_shortcut_down(s32 shortcut_keys[2]); -void ui_begin_menu_bar(); -bool ui_push_menu(char *title); -bool ui_push_menu_item(char *title, char *shortcut); -void ui_push_menu_item_separator(); -bool ui_push_dropdown(dropdown_state *state, char *title); -bool ui_push_dropdown_item(image *icon, char *title, s32 index); -void ui_push_separator(); -void ui_push_rect(s32 w, color rec); -void ui_push_vertical_dragbar(); -void ui_block_begin(layout_direction direction); -void ui_block_end(); -void ui_end_menu_bar(); -void ui_push_text(char *text); -bool ui_push_text_width(char *text, s32 maxw, bool active); -void ui_push_textf(font *f, char *text); -void ui_push_textf_width(font *f, char *text, s32 maxw); -bool ui_push_hypertext_link(char *text); -bool ui_push_color_button(char *text, bool selected, color color); -bool ui_push_image(image *img, s32 w, s32 h, s32 outline, color tint); -bool ui_push_checkbox(checkbox_state *state, char *title); -bool ui_push_textbox(textbox_state *state, char *title); -bool ui_push_button(button_state *button, char *title); -bool ui_push_button_image(button_state *button, char *title, image *img); -void ui_scroll_begin(scroll_state *state); -void ui_scroll_end(); - +/*
+* BSD 2-Clause “Simplified” License
+* Copyright (c) 2019, Aldrik Ramaekers, aldrik.ramaekers@protonmail.com
+* All rights reserved.
+*/
+
+#ifndef INCLUDE_UI
+#define INCLUDE_UI
+
+#define BLOCK_HEIGHT 25
+#define MENU_BAR_HEIGHT 25
+#define MENU_HORIZONTAL_PADDING 10
+#define WIDGET_PADDING 8
+#define BUTTON_HORIZONTAL_TEXT_PADDING 15
+#define MENU_ITEM_WIDTH 220
+#define CHECKBOX_SIZE BLOCK_HEIGHT - 8
+
+static s32 TEXTBOX_WIDTH = 280;
+
+#define TEXTBOX_HEIGHT BLOCK_HEIGHT
+#define BUTTON_HEIGHT BLOCK_HEIGHT
+#define BUTTON_IMAGE_PADDING 5
+#define BUTTON_IMAGE_SPACING 8
+#define DROPDOWN_WIDTH 225
+#define DROPDOWN_ITEM_WIDTH 225
+#define TEXTBOX_SCROLL_X_SPEED 32
+
+typedef enum t_ui_style_type
+{
+ UI_STYLE_LIGHT = 1,
+ UI_STYLE_DARK = 2,
+} ui_style_type;
+
+typedef struct t_ui_style
+{
+ u16 id;
+ color foreground;
+ color background;
+ color border;
+ color textbox_background;
+ color textbox_active_border;
+ color textbox_foreground;
+ color image_outline_tint;
+ color scrollbar_handle_background;
+ color info_bar_background;
+ color error_foreground;
+ color item_hover_background;
+ color scrollbar_background;
+ color menu_background;
+ color menu_hover_background;
+ color menu_foreground;
+ color widget_hover_background;
+ color widget_background;
+ color widget_confirm_background;
+ color widget_confirm_hover_background;
+ color hypertext_foreground;
+ color hypertext_hover_foreground;
+ color textbox_placeholder_foreground;
+ color widget_confirm_border;
+} ui_style;
+
+typedef enum t_layout_direction
+{
+ LAYOUT_HORIZONTAL,
+ LAYOUT_VERTICAL,
+} layout_direction;
+
+typedef struct t_dropdown_state
+{
+ bool state;
+ int selected_index;
+} dropdown_state;
+
+typedef struct t_scroll_state
+{
+ s32 height;
+ s32 width;
+ s32 x;
+ s32 y;
+ s32 scroll;
+ s32 scroll_start_offset_y;
+ bool in_scroll;
+ bool mouse_scrolling;
+} scroll_state;
+
+typedef struct t_ui_layout
+{
+ s32 dropdown_item_count;
+ s32 dropdown_x;
+ s32 offset_x;
+ s32 offset_y;
+ platform_window *active_window;
+ layout_direction layout_direction;
+ s32 prev_offset_x;
+ s32 width;
+ s32 height;
+ s32 menu_offset_y;
+ s32 block_height;
+ s32 start_offset_y;
+ s32 start_offset_x;
+ scroll_state *scroll;
+ s32 padding;
+ dropdown_state *active_dropdown_state;
+} ui_layout;
+
+typedef struct t_textbox_history_entry
+{
+ char *text;
+ s32 cursor_offset;
+} textbox_history_entry;
+
+typedef struct t_textbox_state
+{
+ bool deselect_on_enter;
+ bool accept_newline;
+ char *buffer;
+ s32 selection_start_index;
+ bool state;
+ s32 diff;
+ bool double_clicked_to_select;
+ s32 double_clicked_to_select_cursor_index;
+ s32 max_len;
+ s32 text_offset_x;
+ bool attempting_to_select;
+ array history;
+ array future;
+ s32 last_click_cursor_index;
+} textbox_state;
+
+typedef struct t_checkbox_state
+{
+ bool state;
+} checkbox_state;
+
+typedef struct t_button_state
+{
+ bool state;
+} button_state;
+
+typedef struct t_submenu_state
+{
+ bool open;
+ bool hovered;
+ s32 item_count;
+ s32 w;
+ s32 x;
+ s32 y;
+} submenu_state;
+
+typedef struct t_submenus
+{
+ s32 count;
+ submenu_state *submenu_stack[5];
+} submenus;
+
+typedef struct t_ui_context
+{
+ ui_style style;
+ ui_layout layout;
+ keyboard_input *keyboard;
+ mouse_input *mouse;
+ camera *camera;
+ font *font_small;
+ array active_menus;
+ u32 next_id;
+ s32 menu_item_count;
+ dropdown_state *active_dropdown;
+ u32 confirming_button_id;
+ textbox_state *current_active_textbox;
+ submenus submenus;
+ bool item_hovered;
+} ui_context;
+
+ui_context global_ui_context;
+
+u32 ui_get_id();
+void ui_create(platform_window *window, keyboard_input *keyboard, mouse_input *mouse, camera *camera, font *font_small);
+void ui_set_active_window(platform_window *window);
+void ui_destroy();
+void ui_begin();
+void ui_end();
+bool ui_is_menu_active(u32 id);
+char* name_of_day(s32 day);
+char* name_of_month(s32 month);
+void ui_set_style(u16 style);
+void set_active_textbox(textbox_state *textbox);
+void ui_set_textbox_text(textbox_state *textbox, char *text);
+void ui_set_textbox_active(textbox_state *textbox);
+
+// widget initialization
+checkbox_state ui_create_checkbox(bool selected);
+textbox_state ui_create_textbox(u16 max_len);
+button_state ui_create_button();
+scroll_state ui_create_scroll(s32 scroll);
+dropdown_state ui_create_dropdown();
+submenu_state ui_create_submenu();
+
+void ui_destroy_textbox(textbox_state *state);
+
+// widgets
+bool is_shortcut_down(s32 shortcut_keys[2]);
+void ui_begin_menu_bar();
+bool ui_push_menu(char *title);
+bool ui_push_menu_item(char *title, char *shortcut);
+void ui_begin_menu_submenu(submenu_state *state, char *title);
+void ui_end_menu_submenu();
+void ui_push_menu_item_separator();
+void ui_end_menu_bar();
+bool ui_push_dropdown(dropdown_state *state, char *title);
+bool ui_push_dropdown_item(image *icon, char *title, s32 index);
+void ui_push_separator();
+void ui_push_rect(s32 w, color rec);
+void ui_push_vertical_dragbar();
+void ui_block_begin(layout_direction direction);
+void ui_block_end();
+void ui_push_text(char *text);
+bool ui_push_text_width(char *text, s32 maxw, bool active);
+void ui_push_textf(font *f, char *text);
+void ui_push_textf_width(font *f, char *text, s32 maxw);
+bool ui_push_hypertext_link(char *text);
+bool ui_push_color_button(char *text, bool selected, color color);
+bool ui_push_image(image *img, s32 w, s32 h, s32 outline, color tint);
+bool ui_push_checkbox(checkbox_state *state, char *title);
+bool ui_push_textbox(textbox_state *state, char *title);
+bool ui_push_button(button_state *button, char *title);
+bool ui_push_button_image(button_state *button, char *title, image *img);
+void ui_scroll_begin(scroll_state *state);
+void ui_scroll_end();
+
#endif
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