/* * Copyright 2011-2014 Branimir Karadzic. All rights reserved. * License: http://www.opensource.org/licenses/BSD-2-Clause */ // This code is based on: // // Copyright (c) 2009-2010 Mikko Mononen memon@inside.org // // This software is provided 'as-is', without any express or implied // warranty. In no event will the authors be held liable for any damages // arising from the use of this software. // Permission is granted to anyone to use this software for any purpose, // including commercial applications, and to alter it and redistribute it // freely, subject to the following restrictions: // 1. The origin of this software must not be misrepresented; you must not // claim that you wrote the original software. If you use this software // in a product, an acknowledgment in the product documentation would be // appreciated but is not required. // 2. Altered source versions must be plainly marked as such, and must not be // misrepresented as being the original software. // 3. This notice may not be removed or altered from any source distribution. // // Source altered and distributed from https://github.com/AdrienHerubel/imgui #include #include #include #include #include #include "../entry/dbg.h" #include "imgui.h" #include "../nanovg/nanovg.h" #include "vs_imgui_color.bin.h" #include "fs_imgui_color.bin.h" #include "vs_imgui_texture.bin.h" #include "fs_imgui_texture.bin.h" #define USE_NANOVG_FONT 0 #define MAX_TEMP_COORDS 100 #define NUM_CIRCLE_VERTS (8 * 4) static const int32_t BUTTON_HEIGHT = 20; static const int32_t SLIDER_HEIGHT = 20; static const int32_t SLIDER_MARKER_WIDTH = 10; static const int32_t CHECK_SIZE = 8; static const int32_t DEFAULT_SPACING = 4; static const int32_t TEXT_HEIGHT = 8; static const int32_t SCROLL_AREA_PADDING = 6; static const int32_t INDENT_SIZE = 16; static const int32_t AREA_HEADER = 28; static const int32_t COLOR_WHEEL_PADDING = 60; static const float s_tabStops[4] = {150, 210, 270, 330}; static void* imguiMalloc(size_t size, void* /*_userptr*/) { return malloc(size); } static void imguiFree(void* _ptr, void* /*_userptr*/) { free(_ptr); } #define STBTT_malloc(_x, _y) imguiMalloc(_x, _y) #define STBTT_free(_x, _y) imguiFree(_x, _y) #define STB_TRUETYPE_IMPLEMENTATION #include namespace { float sign(float px, float py, float ax, float ay, float bx, float by) { return (px - bx) * (ay - by) - (ax - bx) * (py - by); } bool pointInTriangle(float px, float py, float ax, float ay, float bx, float by, float cx, float cy) { const bool b1 = sign(px, py, ax, ay, bx, by) < 0.0f; const bool b2 = sign(px, py, bx, by, cx, cy) < 0.0f; const bool b3 = sign(px, py, cx, cy, ax, ay) < 0.0f; return ( (b1 == b2) && (b2 == b3) ); } void closestPointOnLine(float& ox, float &oy, float px, float py, float ax, float ay, float bx, float by) { float dx = px - ax; float dy = py - ay; float lx = bx - ax; float ly = by - ay; float len = sqrtf(lx*lx+ly*ly); // Normalize. float invLen = 1.0f/len; lx*=invLen; ly*=invLen; float dot = (dx*lx + dy*ly); if (dot < 0.0f) { ox = ax; oy = ay; } else if (dot > len) { ox = bx; oy = by; } else { ox = ax + lx*dot; oy = ay + ly*dot; } } void closestPointOnTriangle(float& ox, float &oy, float px, float py, float ax, float ay, float bx, float by, float cx, float cy) { float abx, aby; float bcx, bcy; float cax, cay; closestPointOnLine(abx, aby, px, py, ax, ay, bx, by); closestPointOnLine(bcx, bcy, px, py, bx, by, cx, cy); closestPointOnLine(cax, cay, px, py, cx, cy, ax, ay); const float pabx = px - abx; const float paby = py - aby; const float pbcx = px - bcx; const float pbcy = py - bcy; const float pcax = px - cax; const float pcay = py - cay; const float lab = sqrtf(pabx*pabx+paby*paby); const float lbc = sqrtf(pbcx*pbcx+pbcy*pbcy); const float lca = sqrtf(pcax*pcax+pcay*pcay); const float m = bx::fmin3(lab, lbc, lca); if (m == lab) { ox = abx; oy = aby; } else if (m == lbc) { ox = bcx; oy = bcy; } else// if (m == lca). { ox = cax; oy = cay; } } inline float vec2Dot(const float* __restrict _a, const float* __restrict _b) { return _a[0]*_b[0] + _a[1]*_b[1]; } void barycentric(float& _u, float& _v, float& _w , float _ax, float _ay , float _bx, float _by , float _cx, float _cy , float _px, float _py ) { const float v0[2] = { _bx - _ax, _by - _ay }; const float v1[2] = { _cx - _ax, _cy - _ay }; const float v2[2] = { _px - _ax, _py - _ay }; const float d00 = vec2Dot(v0, v0); const float d01 = vec2Dot(v0, v1); const float d11 = vec2Dot(v1, v1); const float d20 = vec2Dot(v2, v0); const float d21 = vec2Dot(v2, v1); const float denom = d00 * d11 - d01 * d01; _v = (d11 * d20 - d01 * d21) / denom; _w = (d00 * d21 - d01 * d20) / denom; _u = 1.0f - _v - _w; } struct PosColorVertex { float m_x; float m_y; uint32_t m_abgr; static void init() { ms_decl .begin() .add(bgfx::Attrib::Position, 2, bgfx::AttribType::Float) .add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true) .end(); } static bgfx::VertexDecl ms_decl; }; bgfx::VertexDecl PosColorVertex::ms_decl; struct PosColorUvVertex { float m_x; float m_y; float m_u; float m_v; uint32_t m_abgr; static void init() { ms_decl .begin() .add(bgfx::Attrib::Position, 2, bgfx::AttribType::Float) .add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Float) .add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true) .end(); } static bgfx::VertexDecl ms_decl; }; bgfx::VertexDecl PosColorUvVertex::ms_decl; } // namespace struct Imgui { Imgui() : m_mx(-1) , m_my(-1) , m_scroll(0) , m_active(0) , m_hot(0) , m_hotToBe(0) , m_dragX(0) , m_dragY(0) , m_dragOrig(0) , m_widgetX(0) , m_widgetY(0) , m_widgetW(100) , m_left(false) , m_leftPressed(false) , m_leftReleased(false) , m_isHot(false) , m_isActive(false) , m_wentActive(false) , m_insideCurrentScroll(false) , m_areaId(0) , m_widgetId(0) , m_scissor(UINT16_MAX) , m_scrollTop(0) , m_scrollBottom(0) , m_scrollRight(0) , m_scrollAreaTop(0) , m_scrollAreaWidth(0) , m_scrollAreaX(0) , m_scrollVal(NULL) , m_focusTop(0) , m_focusBottom(0) , m_scrollId(0) , m_insideScrollArea(false) , m_textureWidth(512) , m_textureHeight(512) , m_halfTexel(0.0f) , m_nvg(NULL) , m_view(31) { m_invTextureWidth = 1.0f/m_textureWidth; m_invTextureHeight = 1.0f/m_textureHeight; u_texColor.idx = bgfx::invalidHandle; #if !USE_NANOVG_FONT m_fontTexture.idx = bgfx::invalidHandle; #endif // !USE_NANOVG_FONT m_colorProgram.idx = bgfx::invalidHandle; m_textureProgram.idx = bgfx::invalidHandle; } bool create(const void* _data) { m_nvg = nvgCreate(512, 512, 1, m_view); nvgCreateFontMem(m_nvg, "default", (unsigned char*)_data, INT32_MAX, 0); nvgFontSize(m_nvg, 15.0f); nvgFontFace(m_nvg, "default"); for (int32_t ii = 0; ii < NUM_CIRCLE_VERTS; ++ii) { float a = (float)ii / (float)NUM_CIRCLE_VERTS * (float)(M_PI * 2.0); m_circleVerts[ii * 2 + 0] = cosf(a); m_circleVerts[ii * 2 + 1] = sinf(a); } PosColorVertex::init(); PosColorUvVertex::init(); u_texColor = bgfx::createUniform("u_texColor", bgfx::UniformType::Uniform1i); const bgfx::Memory* vs_imgui_color; const bgfx::Memory* fs_imgui_color; const bgfx::Memory* vs_imgui_texture; const bgfx::Memory* fs_imgui_texture; switch (bgfx::getRendererType() ) { case bgfx::RendererType::Direct3D9: vs_imgui_color = bgfx::makeRef(vs_imgui_color_dx9, sizeof(vs_imgui_color_dx9) ); fs_imgui_color = bgfx::makeRef(fs_imgui_color_dx9, sizeof(fs_imgui_color_dx9) ); vs_imgui_texture = bgfx::makeRef(vs_imgui_texture_dx9, sizeof(vs_imgui_texture_dx9) ); fs_imgui_texture = bgfx::makeRef(fs_imgui_texture_dx9, sizeof(fs_imgui_texture_dx9) ); m_halfTexel = 0.5f; break; case bgfx::RendererType::Direct3D11: vs_imgui_color = bgfx::makeRef(vs_imgui_color_dx11, sizeof(vs_imgui_color_dx11) ); fs_imgui_color = bgfx::makeRef(fs_imgui_color_dx11, sizeof(fs_imgui_color_dx11) ); vs_imgui_texture = bgfx::makeRef(vs_imgui_texture_dx11, sizeof(vs_imgui_texture_dx11) ); fs_imgui_texture = bgfx::makeRef(fs_imgui_texture_dx11, sizeof(fs_imgui_texture_dx11) ); break; default: vs_imgui_color = bgfx::makeRef(vs_imgui_color_glsl, sizeof(vs_imgui_color_glsl) ); fs_imgui_color = bgfx::makeRef(fs_imgui_color_glsl, sizeof(fs_imgui_color_glsl) ); vs_imgui_texture = bgfx::makeRef(vs_imgui_texture_glsl, sizeof(vs_imgui_texture_glsl) ); fs_imgui_texture = bgfx::makeRef(fs_imgui_texture_glsl, sizeof(fs_imgui_texture_glsl) ); break; } bgfx::ShaderHandle vsh; bgfx::ShaderHandle fsh; vsh = bgfx::createShader(vs_imgui_color); fsh = bgfx::createShader(fs_imgui_color); m_colorProgram = bgfx::createProgram(vsh, fsh); bgfx::destroyShader(vsh); bgfx::destroyShader(fsh); vsh = bgfx::createShader(vs_imgui_texture); fsh = bgfx::createShader(fs_imgui_texture); m_textureProgram = bgfx::createProgram(vsh, fsh); bgfx::destroyShader(vsh); bgfx::destroyShader(fsh); #if !USE_NANOVG_FONT const bgfx::Memory* mem = bgfx::alloc(m_textureWidth * m_textureHeight); stbtt_BakeFontBitmap( (uint8_t*)_data, 0, 15.0f, mem->data, m_textureWidth, m_textureHeight, 32, 96, m_cdata); m_fontTexture = bgfx::createTexture2D(m_textureWidth, m_textureHeight, 1, bgfx::TextureFormat::R8, BGFX_TEXTURE_NONE, mem); #endif // !USE_NANOVG_FONT return true; } void destroy() { bgfx::destroyUniform(u_texColor); #if !USE_NANOVG_FONT bgfx::destroyTexture(m_fontTexture); #endif // !USE_NANOVG_FONT bgfx::destroyProgram(m_colorProgram); bgfx::destroyProgram(m_textureProgram); nvgDelete(m_nvg); } bool anyActive() const { return m_active != 0; } bool isActive(uint32_t _id) const { return m_active == _id; } bool isHot(uint32_t _id) const { return m_hot == _id; } bool inRect(int32_t _x, int32_t _y, int32_t _width, int32_t _height, bool _checkScroll = true) const { return (!_checkScroll || m_insideCurrentScroll) && m_mx >= _x && m_mx <= _x + _width && m_my >= _y && m_my <= _y + _height; } void clearInput() { m_leftPressed = false; m_leftReleased = false; m_scroll = 0; } void clearActive() { m_active = 0; // mark all UI for this frame as processed clearInput(); } void setActive(uint32_t _id) { m_active = _id; m_wentActive = true; } void setHot(uint32_t _id) { m_hotToBe = _id; } bool buttonLogic(uint32_t _id, bool _over) { bool res = false; // process down if (!anyActive() ) { if (_over) { setHot(_id); } if (isHot(_id) && m_leftPressed) { setActive(_id); } } // if button is active, then react on left up if (isActive(_id) ) { m_isActive = true; if (_over) { setHot(_id); } if (m_leftReleased) { if (isHot(_id) ) { res = true; } clearActive(); } } if (isHot(_id) ) { m_isHot = true; } return res; } void updateInput(int32_t _mx, int32_t _my, uint8_t _button, int32_t _scroll) { bool left = (_button & IMGUI_MBUT_LEFT) != 0; m_mx = _mx; m_my = _my; m_leftPressed = !m_left && left; m_leftReleased = m_left && !left; m_left = left; m_scroll = _scroll; } void beginFrame(int32_t _mx, int32_t _my, uint8_t _button, int32_t _scroll, uint16_t _width, uint16_t _height, uint8_t _view) { nvgBeginFrame(m_nvg, _width, _height, 1.0f, NVG_STRAIGHT_ALPHA); m_view = _view; bgfx::setViewSeq(_view, true); bgfx::setViewRect(_view, 0, 0, _width, _height); float proj[16]; bx::mtxOrtho(proj, 0.0f, (float)_width, (float)_height, 0.0f, 0.0f, 1000.0f); bgfx::setViewTransform(_view, NULL, proj); updateInput(_mx, _my, _button, _scroll); m_hot = m_hotToBe; m_hotToBe = 0; m_wentActive = false; m_isActive = false; m_isHot = false; m_widgetX = 0; m_widgetY = 0; m_widgetW = 0; m_areaId = 1; m_widgetId = 1; } void endFrame() { clearInput(); nvgEndFrame(m_nvg); } bool beginScrollArea(const char* _name, int32_t _x, int32_t _y, int32_t _width, int32_t _height, int32_t* _scroll) { m_areaId++; m_widgetId = 0; m_scrollId = (m_areaId << 16) | m_widgetId; m_widgetX = _x + SCROLL_AREA_PADDING; m_widgetY = _y + AREA_HEADER + (*_scroll); m_widgetW = _width - SCROLL_AREA_PADDING * 4; m_scrollTop = _y + AREA_HEADER; m_scrollBottom = _y + _height; m_scrollRight = _x + _width - SCROLL_AREA_PADDING * 3; m_scrollVal = _scroll; m_scrollAreaX = _x; m_scrollAreaWidth = _width; m_scrollAreaTop = m_widgetY; m_focusTop = _y - AREA_HEADER; m_focusBottom = _y - AREA_HEADER + _height; m_insideScrollArea = inRect(_x, _y, _width, _height, false); m_insideCurrentScroll = m_insideScrollArea; drawRoundedRect( (float)_x , (float)_y , (float)_width , (float)_height , 6 , imguiRGBA(0, 0, 0, 192) ); drawText(_x + AREA_HEADER / 2 , _y + AREA_HEADER / 2 , ImguiTextAlign::Left , _name , imguiRGBA(255, 255, 255, 128) ); nvgScissor(m_nvg , float(_x + SCROLL_AREA_PADDING) , float(_y + AREA_HEADER) , float(_width - SCROLL_AREA_PADDING * 4) , float(_height - AREA_HEADER - SCROLL_AREA_PADDING) ); m_scissor = bgfx::setScissor(uint16_t(_x + SCROLL_AREA_PADDING) , uint16_t(_y + AREA_HEADER) , uint16_t(_width - SCROLL_AREA_PADDING * 4) , uint16_t(_height - AREA_HEADER - SCROLL_AREA_PADDING) ); return m_insideScrollArea; } void endScrollArea() { // Disable scissoring. m_scissor = UINT16_MAX; nvgResetScissor(m_nvg); // Draw scroll bar int32_t xx = m_scrollRight + SCROLL_AREA_PADDING / 2; int32_t yy = m_scrollTop; int32_t width = SCROLL_AREA_PADDING * 2; int32_t height = m_scrollBottom - m_scrollTop; int32_t stop = m_scrollAreaTop; int32_t sbot = m_widgetY + SCROLL_AREA_PADDING; int32_t sh = sbot - stop; // The scrollable area height. float barHeight = (float)height / (float)sh; if (barHeight < 1.0f) { float barY = bx::fsaturate( (float)(yy - stop) / (float)sh); // Handle scroll bar logic. uint32_t hid = m_scrollId; int32_t hx = xx; int32_t hy = yy + (int)(barY * height); int32_t hw = width; int32_t hh = (int)(barHeight * height); const int32_t range = height - (hh - 1); bool over = inRect(hx, hy, hw, hh); buttonLogic(hid, over); if (isActive(hid) ) { float uu = (float)(hy - yy) / (float)range; if (m_wentActive) { m_dragY = m_my; m_dragOrig = uu; } if (m_dragY != m_my) { uu = bx::fsaturate(m_dragOrig + (m_my - m_dragY) / (float)range); *m_scrollVal = (int)(uu * (height - sh) ); } } // BG drawRoundedRect( (float)xx , (float)yy , (float)width , (float)height , (float)width / 2 - 1 , imguiRGBA(0, 0, 0, 196) ); // Bar if (isActive(hid) ) { drawRoundedRect( (float)hx , (float)hy , (float)hw , (float)hh , (float)width / 2 - 1 , imguiRGBA(255, 196, 0, 196) ); } else { drawRoundedRect( (float)hx , (float)hy , (float)hw , (float)hh , (float)width / 2 - 1 , isHot(hid) ? imguiRGBA(255, 196, 0, 96) : imguiRGBA(255, 255, 255, 64) ); } // Handle mouse scrolling. if (m_insideScrollArea) // && !anyActive() ) { if (m_scroll) { *m_scrollVal += bx::uint32_clamp(20 * m_scroll, 0, sh - height); } } } m_insideCurrentScroll = false; } bool button(const char* _text, bool _enabled) { m_widgetId++; uint32_t id = (m_areaId << 16) | m_widgetId; int32_t xx = m_widgetX; int32_t yy = m_widgetY; int32_t width = m_widgetW; int32_t height = BUTTON_HEIGHT; m_widgetY += BUTTON_HEIGHT + DEFAULT_SPACING; bool over = _enabled && inRect(xx, yy, width, height); bool res = buttonLogic(id, over); drawRoundedRect( (float)xx , (float)yy , (float)width , (float)height , (float)BUTTON_HEIGHT / 2 - 1 , imguiRGBA(128, 128, 128, isActive(id) ? 196 : 96) ); if (_enabled) { drawText(xx + BUTTON_HEIGHT / 2 , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , isHot(id) ? imguiRGBA(255, 196, 0, 255) : imguiRGBA(255, 255, 255, 200) ); } else { drawText(xx + BUTTON_HEIGHT / 2 , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , imguiRGBA(128, 128, 128, 200) ); } return res; } bool item(const char* _text, bool _enabled) { m_widgetId++; uint32_t id = (m_areaId << 16) | m_widgetId; int32_t xx = m_widgetX; int32_t yy = m_widgetY; int32_t width = m_widgetW; int32_t height = BUTTON_HEIGHT; m_widgetY += BUTTON_HEIGHT + DEFAULT_SPACING; bool over = _enabled && inRect(xx, yy, width, height); bool res = buttonLogic(id, over); if (isHot(id) ) { drawRoundedRect( (float)xx , (float)yy , (float)width , (float)height , 2.0f , imguiRGBA(255, 196, 0, isActive(id) ? 196 : 96) ); } if (_enabled) { drawText(xx + BUTTON_HEIGHT / 2 , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , imguiRGBA(255, 255, 255, 200) ); } else { drawText(xx + BUTTON_HEIGHT / 2 , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , imguiRGBA(128, 128, 128, 200) ); } return res; } bool check(const char* _text, bool _checked, bool _enabled) { m_widgetId++; uint32_t id = (m_areaId << 16) | m_widgetId; int32_t xx = m_widgetX; int32_t yy = m_widgetY; int32_t width = m_widgetW; int32_t height = BUTTON_HEIGHT; m_widgetY += BUTTON_HEIGHT + DEFAULT_SPACING; bool over = _enabled && inRect(xx, yy, width, height); bool res = buttonLogic(id, over); const int32_t cx = xx + BUTTON_HEIGHT / 2 - CHECK_SIZE / 2; const int32_t cy = yy + BUTTON_HEIGHT / 2 - CHECK_SIZE / 2; drawRoundedRect( (float)cx - 3 , (float)cy - 3 , (float)CHECK_SIZE + 6 , (float)CHECK_SIZE + 6 , 4 , imguiRGBA(128, 128, 128, isActive(id) ? 196 : 96) ); if (_checked) { if (_enabled) { drawRoundedRect( (float)cx , (float)cy , (float)CHECK_SIZE , (float)CHECK_SIZE , (float)CHECK_SIZE / 2 - 1 , imguiRGBA(255, 255, 255, isActive(id) ? 255 : 200) ); } else { drawRoundedRect( (float)cx , (float)cy , (float)CHECK_SIZE , (float)CHECK_SIZE , (float)CHECK_SIZE / 2 - 1 , imguiRGBA(128, 128, 128, 200) ); } } if (_enabled) { drawText(xx + BUTTON_HEIGHT , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , isHot(id) ? imguiRGBA(255, 196, 0, 255) : imguiRGBA(255, 255, 255, 200) ); } else { drawText(xx + BUTTON_HEIGHT , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , imguiRGBA(128, 128, 128, 200) ); } return res; } bool collapse(const char* _text, const char* _subtext, bool _checked, bool _enabled) { m_widgetId++; uint32_t id = (m_areaId << 16) | m_widgetId; int32_t xx = m_widgetX; int32_t yy = m_widgetY; int32_t width = m_widgetW; int32_t height = BUTTON_HEIGHT; m_widgetY += BUTTON_HEIGHT + DEFAULT_SPACING; const int32_t cx = xx + BUTTON_HEIGHT / 2 - CHECK_SIZE / 2; const int32_t cy = yy + BUTTON_HEIGHT / 2 - CHECK_SIZE / 2; bool over = _enabled && inRect(xx, yy, width, height); bool res = buttonLogic(id, over); if (_checked) { drawTriangle(cx , cy , CHECK_SIZE , CHECK_SIZE , 2 , imguiRGBA(255, 255, 255, isActive(id) ? 255 : 200) ); } else { drawTriangle(cx , cy , CHECK_SIZE , CHECK_SIZE , 1 , imguiRGBA(255, 255, 255, isActive(id) ? 255 : 200) ); } if (_enabled) { drawText(xx + BUTTON_HEIGHT , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , isHot(id) ? imguiRGBA(255, 196, 0, 255) : imguiRGBA(255, 255, 255, 200) ); } else { drawText(xx + BUTTON_HEIGHT , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , imguiRGBA(128, 128, 128, 200) ); } if (_subtext) { drawText(xx + width - BUTTON_HEIGHT / 2 , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Right , _subtext , imguiRGBA(255, 255, 255, 128) ); } return res; } void labelVargs(const char* _format, va_list _argList) { char temp[8192]; char* out = temp; int32_t len = bx::vsnprintf(out, sizeof(temp), _format, _argList); if ( (int32_t)sizeof(temp) < len) { out = (char*)alloca(len+1); len = bx::vsnprintf(out, len, _format, _argList); } out[len] = '\0'; int32_t xx = m_widgetX; int32_t yy = m_widgetY; m_widgetY += BUTTON_HEIGHT; drawText(xx , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , out , imguiRGBA(255, 255, 255, 255) ); } void value(const char* _text) { const int32_t xx = m_widgetX; const int32_t yy = m_widgetY; const int32_t ww = m_widgetW; m_widgetY += BUTTON_HEIGHT; drawText(xx + ww - BUTTON_HEIGHT / 2 , yy + BUTTON_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Right , _text , imguiRGBA(255, 255, 255, 200) ); } bool slider(const char* _text, float& _val, float _vmin, float _vmax, float _vinc, bool _enabled) { m_widgetId++; uint32_t id = (m_areaId << 16) | m_widgetId; int32_t xx = m_widgetX; int32_t yy = m_widgetY; int32_t width = m_widgetW; int32_t height = SLIDER_HEIGHT; m_widgetY += SLIDER_HEIGHT + DEFAULT_SPACING; drawRoundedRect( (float)xx, (float)yy, (float)width, (float)height, 4.0f, imguiRGBA(0, 0, 0, 128) ); const int32_t range = width - SLIDER_MARKER_WIDTH; float uu = bx::fsaturate( (_val - _vmin) / (_vmax - _vmin) ); int32_t m = (int)(uu * range); bool over = _enabled && inRect(xx + m, yy, SLIDER_MARKER_WIDTH, SLIDER_HEIGHT); bool res = buttonLogic(id, over); bool valChanged = false; if (isActive(id) ) { if (m_wentActive) { m_dragX = m_mx; m_dragOrig = uu; } if (m_dragX != m_mx) { uu = bx::fsaturate(m_dragOrig + (float)(m_mx - m_dragX) / (float)range); _val = _vmin + uu * (_vmax - _vmin); _val = floorf(_val / _vinc + 0.5f) * _vinc; // Snap to vinc m = (int)(uu * range); valChanged = true; } } if (isActive(id) ) { drawRoundedRect( (float)(xx + m) , (float)yy , (float)SLIDER_MARKER_WIDTH , (float)SLIDER_HEIGHT , 4.0f , imguiRGBA(255, 255, 255, 255) ); } else { drawRoundedRect( (float)(xx + m) , (float)yy , (float)SLIDER_MARKER_WIDTH , (float)SLIDER_HEIGHT , 4.0f , isHot(id) ? imguiRGBA(255, 196, 0, 128) : imguiRGBA(255, 255, 255, 64) ); } // TODO: fix this, take a look at 'nicenum'. int32_t digits = (int)(ceilf(log10f(_vinc) ) ); char fmt[16]; bx::snprintf(fmt, 16, "%%.%df", digits >= 0 ? 0 : -digits); char msg[128]; bx::snprintf(msg, 128, fmt, _val); if (_enabled) { drawText(xx + SLIDER_HEIGHT / 2 , yy + SLIDER_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , isHot(id) ? imguiRGBA(255, 196, 0, 255) : imguiRGBA(255, 255, 255, 200) ); drawText(xx + width - SLIDER_HEIGHT / 2 , yy + SLIDER_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Right , msg , isHot(id) ? imguiRGBA(255, 196, 0, 255) : imguiRGBA(255, 255, 255, 200) ); } else { drawText(xx + SLIDER_HEIGHT / 2 , yy + SLIDER_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Left , _text , imguiRGBA(128, 128, 128, 200) ); drawText(xx + width - SLIDER_HEIGHT / 2 , yy + SLIDER_HEIGHT / 2 + TEXT_HEIGHT / 2 , ImguiTextAlign::Right , msg , imguiRGBA(128, 128, 128, 200) ); } return res || valChanged; } void indent() { m_widgetX += INDENT_SIZE; m_widgetW -= INDENT_SIZE; } void unindent() { m_widgetX -= INDENT_SIZE; m_widgetW += INDENT_SIZE; } void separator() { m_widgetY += DEFAULT_SPACING * 3; } void separatorLine() { int32_t xx = m_widgetX; int32_t yy = m_widgetY; int32_t width = m_widgetW; int32_t height = 1; m_widgetY += DEFAULT_SPACING * 4; drawRect( (float)xx , (float)yy , (float)width , (float)height , imguiRGBA(255, 255, 255, 32) ); } void drawPolygon(const float* _coords, uint32_t _numCoords, float _r, uint32_t _abgr) { _numCoords = bx::uint32_min(_numCoords, MAX_TEMP_COORDS); for (uint32_t ii = 0, jj = _numCoords - 1; ii < _numCoords; jj = ii++) { const float* v0 = &_coords[jj * 2]; const float* v1 = &_coords[ii * 2]; float dx = v1[0] - v0[0]; float dy = v1[1] - v0[1]; float d = sqrtf(dx * dx + dy * dy); if (d > 0) { d = 1.0f / d; dx *= d; dy *= d; } m_tempNormals[jj * 2 + 0] = dy; m_tempNormals[jj * 2 + 1] = -dx; } for (uint32_t ii = 0, jj = _numCoords - 1; ii < _numCoords; jj = ii++) { float dlx0 = m_tempNormals[jj * 2 + 0]; float dly0 = m_tempNormals[jj * 2 + 1]; float dlx1 = m_tempNormals[ii * 2 + 0]; float dly1 = m_tempNormals[ii * 2 + 1]; float dmx = (dlx0 + dlx1) * 0.5f; float dmy = (dly0 + dly1) * 0.5f; float dmr2 = dmx * dmx + dmy * dmy; if (dmr2 > 0.000001f) { float scale = 1.0f / dmr2; if (scale > 10.0f) { scale = 10.0f; } dmx *= scale; dmy *= scale; } m_tempCoords[ii * 2 + 0] = _coords[ii * 2 + 0] + dmx * _r; m_tempCoords[ii * 2 + 1] = _coords[ii * 2 + 1] + dmy * _r; } uint32_t numVertices = _numCoords*6 + (_numCoords-2)*3; if (bgfx::checkAvailTransientVertexBuffer(numVertices, PosColorVertex::ms_decl) ) { bgfx::TransientVertexBuffer tvb; bgfx::allocTransientVertexBuffer(&tvb, numVertices, PosColorVertex::ms_decl); uint32_t trans = _abgr&0xffffff; PosColorVertex* vertex = (PosColorVertex*)tvb.data; for (uint32_t ii = 0, jj = _numCoords-1; ii < _numCoords; jj = ii++) { vertex->m_x = _coords[ii*2+0]; vertex->m_y = _coords[ii*2+1]; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = _coords[jj*2+0]; vertex->m_y = _coords[jj*2+1]; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = m_tempCoords[jj*2+0]; vertex->m_y = m_tempCoords[jj*2+1]; vertex->m_abgr = trans; ++vertex; vertex->m_x = m_tempCoords[jj*2+0]; vertex->m_y = m_tempCoords[jj*2+1]; vertex->m_abgr = trans; ++vertex; vertex->m_x = m_tempCoords[ii*2+0]; vertex->m_y = m_tempCoords[ii*2+1]; vertex->m_abgr = trans; ++vertex; vertex->m_x = _coords[ii*2+0]; vertex->m_y = _coords[ii*2+1]; vertex->m_abgr = _abgr; ++vertex; } for (uint32_t ii = 2; ii < _numCoords; ++ii) { vertex->m_x = _coords[0]; vertex->m_y = _coords[1]; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = _coords[(ii-1)*2+0]; vertex->m_y = _coords[(ii-1)*2+1]; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = _coords[ii*2+0]; vertex->m_y = _coords[ii*2+1]; vertex->m_abgr = _abgr; ++vertex; } bgfx::setVertexBuffer(&tvb); bgfx::setState(0 | BGFX_STATE_RGB_WRITE | BGFX_STATE_ALPHA_WRITE | BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA) ); bgfx::setProgram(m_colorProgram); bgfx::setScissor(m_scissor); bgfx::submit(m_view); } } void drawRect(float _x, float _y, float w, float h, uint32_t _argb, float _fth = 1.0f) { float verts[4 * 2] = { _x + 0.5f, _y + 0.5f, _x + w - 0.5f, _y + 0.5f, _x + w - 0.5f, _y + h - 0.5f, _x + 0.5f, _y + h - 0.5f, }; drawPolygon(verts, 4, _fth, _argb); } void drawRoundedRect(float _x, float _y, float w, float h, float r, uint32_t _argb, float _fth = 1.0f) { const uint32_t num = NUM_CIRCLE_VERTS / 4; const float* cverts = m_circleVerts; float verts[(num + 1) * 4 * 2]; float* vv = verts; for (uint32_t ii = 0; ii <= num; ++ii) { *vv++ = _x + w - r + cverts[ii * 2] * r; *vv++ = _y + h - r + cverts[ii * 2 + 1] * r; } for (uint32_t ii = num; ii <= num * 2; ++ii) { *vv++ = _x + r + cverts[ii * 2] * r; *vv++ = _y + h - r + cverts[ii * 2 + 1] * r; } for (uint32_t ii = num * 2; ii <= num * 3; ++ii) { *vv++ = _x + r + cverts[ii * 2] * r; *vv++ = _y + r + cverts[ii * 2 + 1] * r; } for (uint32_t ii = num * 3; ii < num * 4; ++ii) { *vv++ = _x + w - r + cverts[ii * 2] * r; *vv++ = _y + r + cverts[ii * 2 + 1] * r; } *vv++ = _x + w - r + cverts[0] * r; *vv++ = _y + r + cverts[1] * r; drawPolygon(verts, (num + 1) * 4, _fth, _argb); } void drawLine(float _x0, float _y0, float _x1, float _y1, float _r, uint32_t _abgr, float _fth = 1.0f) { float dx = _x1 - _x0; float dy = _y1 - _y0; float d = sqrtf(dx * dx + dy * dy); if (d > 0.0001f) { d = 1.0f / d; dx *= d; dy *= d; } float nx = dy; float ny = -dx; float verts[4 * 2]; _r -= _fth; _r *= 0.5f; if (_r < 0.01f) { _r = 0.01f; } dx *= _r; dy *= _r; nx *= _r; ny *= _r; verts[0] = _x0 - dx - nx; verts[1] = _y0 - dy - ny; verts[2] = _x0 - dx + nx; verts[3] = _y0 - dy + ny; verts[4] = _x1 + dx + nx; verts[5] = _y1 + dy + ny; verts[6] = _x1 + dx - nx; verts[7] = _y1 + dy - ny; drawPolygon(verts, 4, _fth, _abgr); } void drawTriangle(int32_t _x, int32_t _y, int32_t _width, int32_t _height, int32_t _flags, uint32_t _abgr) { if (1 == _flags) { const float verts[3 * 2] = { (float)_x + 0.5f, (float)_y + 0.5f, (float)_x + 0.5f + (float)_width * 1.0f, (float)_y + 0.5f + (float)_height / 2.0f - 0.5f, (float)_x + 0.5f, (float)_y + 0.5f + (float)_height - 1.0f, }; drawPolygon(verts, 3, 1.0f, _abgr); } else { const float verts[3 * 2] = { (float)_x + 0.5f, (float)_y + 0.5f + (float)_height - 1.0f, (float)_x + 0.5f + (float)_width / 2.0f - 0.5f, (float)_y + 0.5f, (float)_x + 0.5f + (float)_width - 1.0f, (float)_y + 0.5f + (float)_height - 1.0f, }; drawPolygon(verts, 3, 1.0f, _abgr); } } #if !USE_NANOVG_FONT void getBakedQuad(stbtt_bakedchar* _chardata, int32_t char_index, float* _xpos, float* _ypos, stbtt_aligned_quad* _quad) { stbtt_bakedchar* b = _chardata + char_index; int32_t round_x = STBTT_ifloor(*_xpos + b->xoff); int32_t round_y = STBTT_ifloor(*_ypos + b->yoff); _quad->x0 = (float)round_x; _quad->y0 = (float)round_y; _quad->x1 = (float)round_x + b->x1 - b->x0; _quad->y1 = (float)round_y + b->y1 - b->y0; _quad->s0 = (b->x0 + m_halfTexel) * m_invTextureWidth; _quad->t0 = (b->y0 + m_halfTexel) * m_invTextureWidth; _quad->s1 = (b->x1 + m_halfTexel) * m_invTextureHeight; _quad->t1 = (b->y1 + m_halfTexel) * m_invTextureHeight; *_xpos += b->xadvance; } float getTextLength(stbtt_bakedchar* _chardata, const char* _text, uint32_t& _numVertices) { float xpos = 0; float len = 0; uint32_t numVertices = 0; while (*_text) { int32_t ch = (uint8_t)*_text; if (ch == '\t') { for (int32_t ii = 0; ii < 4; ++ii) { if (xpos < s_tabStops[ii]) { xpos = s_tabStops[ii]; break; } } } else if (ch >= ' ' && ch < 128) { stbtt_bakedchar* b = _chardata + ch - ' '; int32_t round_x = STBTT_ifloor( (xpos + b->xoff) + 0.5); len = round_x + b->x1 - b->x0 + 0.5f; xpos += b->xadvance; numVertices += 6; } ++_text; } _numVertices = numVertices; return len; } #endif // !USE_NANOVG_FONT void drawText(int32_t _x, int32_t _y, ImguiTextAlign::Enum _align, const char* _text, uint32_t _abgr) { drawText( (float)_x, (float)_y, _text, _align, _abgr); } void drawText(float _x, float _y, const char* _text, ImguiTextAlign::Enum _align, uint32_t _abgr) { #if USE_NANOVG_FONT static uint32_t textAlign[ImguiTextAlign::Count] = { NVG_ALIGN_LEFT, NVG_ALIGN_CENTER, NVG_ALIGN_RIGHT, }; nvgTextAlign(m_nvg, textAlign[_align]); nvgFontBlur(m_nvg, 0.0f); nvgFillColor(m_nvg, nvgRGBAu(_abgr) ); nvgText(m_nvg, _x, _y, _text, NULL); #else uint32_t numVertices = 0; if (_align == ImguiTextAlign::Center) { _x -= getTextLength(m_cdata, _text, numVertices) / 2; } else if (_align == ImguiTextAlign::Right) { _x -= getTextLength(m_cdata, _text, numVertices); } else // just count vertices { getTextLength(m_cdata, _text, numVertices); } if (bgfx::checkAvailTransientVertexBuffer(numVertices, PosColorUvVertex::ms_decl) ) { bgfx::TransientVertexBuffer tvb; bgfx::allocTransientVertexBuffer(&tvb, numVertices, PosColorUvVertex::ms_decl); PosColorUvVertex* vertex = (PosColorUvVertex*)tvb.data; const float ox = _x; while (*_text) { int32_t ch = (uint8_t)*_text; if (ch == '\t') { for (int32_t i = 0; i < 4; ++i) { if (_x < s_tabStops[i] + ox) { _x = s_tabStops[i] + ox; break; } } } else if (ch >= ' ' && ch < 128) { stbtt_aligned_quad quad; getBakedQuad(m_cdata, ch - 32, &_x, &_y, &quad); vertex->m_x = quad.x0; vertex->m_y = quad.y0; vertex->m_u = quad.s0; vertex->m_v = quad.t0; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = quad.x1; vertex->m_y = quad.y1; vertex->m_u = quad.s1; vertex->m_v = quad.t1; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = quad.x1; vertex->m_y = quad.y0; vertex->m_u = quad.s1; vertex->m_v = quad.t0; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = quad.x0; vertex->m_y = quad.y0; vertex->m_u = quad.s0; vertex->m_v = quad.t0; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = quad.x0; vertex->m_y = quad.y1; vertex->m_u = quad.s0; vertex->m_v = quad.t1; vertex->m_abgr = _abgr; ++vertex; vertex->m_x = quad.x1; vertex->m_y = quad.y1; vertex->m_u = quad.s1; vertex->m_v = quad.t1; vertex->m_abgr = _abgr; ++vertex; } ++_text; } bgfx::setTexture(0, u_texColor, m_fontTexture); bgfx::setVertexBuffer(&tvb); bgfx::setState(0 | BGFX_STATE_RGB_WRITE | BGFX_STATE_ALPHA_WRITE | BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA) ); bgfx::setProgram(m_textureProgram); bgfx::setScissor(m_scissor); bgfx::submit(m_view); } #endif // USE_NANOVG_FONT } void colorWheelWidget(float _rgb[3], bool _respectIndentation, bool _enabled) { m_widgetId++; const uint32_t wheelId = (m_areaId << 16) | m_widgetId; m_widgetId++; const uint32_t triangleId = (m_areaId << 16) | m_widgetId; const int32_t height = m_scrollAreaWidth - COLOR_WHEEL_PADDING; const float heightf = float(height); const float widthf = float(m_scrollAreaWidth - COLOR_WHEEL_PADDING); const float xx = float( (_respectIndentation ? m_widgetX-SCROLL_AREA_PADDING : m_scrollAreaX) + COLOR_WHEEL_PADDING/2); const float yy = float(m_widgetY); m_widgetY += height + DEFAULT_SPACING; const float ro = (widthf < heightf ? widthf : heightf) * 0.5f - 5.0f; // radiusOuter. const float rd = 20.0f; // radiusDelta. const float ri = ro - rd; // radiusInner. const float aeps = 0.5f / ro; // Half a pixel arc length in radians (2pi cancels out). const float center[2] = { xx + widthf*0.5f, yy + heightf*0.5f }; const float cmx = float(m_mx) - center[0]; const float cmy = float(m_my) - center[1]; const float aa[2] = { ri - 6.0f, 0.0f }; // Hue point. const float bb[2] = { cosf(-120.0f/180.0f*NVG_PI) * aa[0], sinf(-120.0f/180.0f*NVG_PI) * aa[0] }; // Black point. const float cc[2] = { cosf( 120.0f/180.0f*NVG_PI) * aa[0], sinf( 120.0f/180.0f*NVG_PI) * aa[0] }; // White point. const float ca[2] = { aa[0] - cc[0], aa[1] - cc[1] }; const float lenCa = sqrtf(ca[0]*ca[0]+ca[1]*ca[1]); const float invLenCa = 1.0f/lenCa; const float dirCa[2] = { ca[0]*invLenCa, ca[1]*invLenCa }; float sel[2]; float hsv[3]; bx::rgbToHsv(hsv, _rgb); if (_enabled) { if (m_leftPressed) { const float len = sqrtf(cmx*cmx + cmy*cmy); if (len > ri) { if (len < ro) { setActive(wheelId); } } else { setActive(triangleId); } } if (m_leftReleased && (isActive(wheelId) || isActive(triangleId) ) ) { clearActive(); } // Set hue. if (m_left && isActive(wheelId) ) { hsv[0] = atan2f(cmy, cmx)/NVG_PI*0.5f; if (hsv[0] < 0.0f) { hsv[0]+=1.0f; } } } if (_enabled && m_left && isActive(triangleId) ) { float an = -hsv[0]*NVG_PI*2.0f; float tmx = (cmx*cosf(an)-cmy*sinf(an) ); float tmy = (cmx*sinf(an)+cmy*cosf(an) ); if (pointInTriangle(tmx, tmy, aa[0], aa[1], bb[0], bb[1], cc[0], cc[1]) ) { sel[0] = tmx; sel[1] = tmy; } else { closestPointOnTriangle(sel[0], sel[1], tmx, tmy, aa[0], aa[1], bb[0], bb[1], cc[0], cc[1]); } } else { /// /// bb (black) /// /\ /// / \ /// / \ /// / \ /// / \ /// / .sel \ /// / \ /// cc(white)/____.ss_______\aa (hue) /// const float ss[2] = { cc[0] + dirCa[0]*lenCa*hsv[1], cc[1] + dirCa[1]*lenCa*hsv[1], }; const float sb[2] = { bb[0]-ss[0], bb[1]-ss[1] }; const float lenSb = sqrtf(sb[0]*sb[0]+sb[1]*sb[1]); const float invLenSb = 1.0f/lenSb; const float dirSb[2] = { sb[0]*invLenSb, sb[1]*invLenSb }; sel[0] = cc[0] + dirCa[0]*lenCa*hsv[1] + dirSb[0]*lenSb*(1.0f - hsv[2]); sel[1] = cc[1] + dirCa[1]*lenCa*hsv[1] + dirSb[1]*lenSb*(1.0f - hsv[2]); } float uu, vv, ww; barycentric(uu, vv, ww , aa[0], aa[1] , bb[0], bb[1] , cc[0], cc[1] , sel[0], sel[1] ); const float val = bx::fclamp(1.0f-vv, 0.0001f, 1.0f); const float sat = bx::fclamp(uu/val, 0.0001f, 1.0f); const float out[3] = { hsv[0], sat, val }; bx::hsvToRgb(_rgb, out); // Draw widget. nvgSave(m_nvg); { const float drawSaturation = _enabled ? 1.0f : 0.0f; // Circle. for (uint8_t ii = 0; ii < 6; ii++) { const float a0 = float(ii)/6.0f * 2.0f*NVG_PI - aeps; const float a1 = float(ii+1.0f)/6.0f * 2.0f*NVG_PI + aeps; nvgBeginPath(m_nvg); nvgArc(m_nvg, center[0], center[1], ri, a0, a1, NVG_CW); nvgArc(m_nvg, center[0], center[1], ro, a1, a0, NVG_CCW); nvgClosePath(m_nvg); const float ax = center[0] + cosf(a0) * (ri+ro)*0.5f; const float ay = center[1] + sinf(a0) * (ri+ro)*0.5f; const float bx = center[0] + cosf(a1) * (ri+ro)*0.5f; const float by = center[1] + sinf(a1) * (ri+ro)*0.5f; NVGpaint paint = nvgLinearGradient(m_nvg , ax, ay , bx, by , nvgHSLA(a0/NVG_PI*0.5f,drawSaturation,0.55f,255) , nvgHSLA(a1/NVG_PI*0.5f,drawSaturation,0.55f,255) ); nvgFillPaint(m_nvg, paint); nvgFill(m_nvg); } // Circle stroke. nvgBeginPath(m_nvg); nvgCircle(m_nvg, center[0], center[1], ri-0.5f); nvgCircle(m_nvg, center[0], center[1], ro+0.5f); nvgStrokeColor(m_nvg, nvgRGBA(0,0,0,64) ); nvgStrokeWidth(m_nvg, 1.0f); nvgStroke(m_nvg); nvgSave(m_nvg); { // Hue selector. nvgTranslate(m_nvg, center[0], center[1]); nvgRotate(m_nvg, hsv[0]*NVG_PI*2.0f); nvgStrokeWidth(m_nvg, 2.0f); nvgBeginPath(m_nvg); nvgRect(m_nvg, ri-1.0f,-3.0f,rd+2.0f,6.0f); nvgStrokeColor(m_nvg, nvgRGBA(255,255,255,192) ); nvgStroke(m_nvg); // Hue selector drop shadow. NVGpaint paint = nvgBoxGradient(m_nvg, ri-3.0f,-5.0f,ro-ri+6.0f,10.0f, 2.0f,4.0f, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0) ); nvgBeginPath(m_nvg); nvgRect(m_nvg, ri-2.0f-10.0f,-4.0f-10.0f,ro-ri+4.0f+20.0f,8.0f+20.0f); nvgRect(m_nvg, ri-2.0f,-4.0f,ro-ri+4.0f,8.0f); nvgPathWinding(m_nvg, NVG_HOLE); nvgFillPaint(m_nvg, paint); nvgFill(m_nvg); // Center triangle stroke. nvgBeginPath(m_nvg); nvgMoveTo(m_nvg, aa[0], aa[1]); nvgLineTo(m_nvg, bb[0], bb[1]); nvgLineTo(m_nvg, cc[0], cc[1]); nvgClosePath(m_nvg); nvgStrokeColor(m_nvg, nvgRGBA(0,0,0,64) ); nvgStroke(m_nvg); // Center triangle fill. paint = nvgLinearGradient(m_nvg, aa[0], aa[1], bb[0], bb[1], nvgHSL(hsv[0],drawSaturation,0.5f), nvgRGBA(0,0,0,255) ); nvgFillPaint(m_nvg, paint); nvgFill(m_nvg); paint = nvgLinearGradient(m_nvg, (aa[0]+bb[0])*0.5f, (aa[1]+bb[1])*0.5f, cc[0], cc[1], nvgRGBA(0,0,0,0), nvgRGBA(255,255,255,255) ); nvgFillPaint(m_nvg, paint); nvgFill(m_nvg); // Color selector. nvgStrokeWidth(m_nvg, 2.0f); nvgBeginPath(m_nvg); nvgCircle(m_nvg, sel[0], sel[1], 5); nvgStrokeColor(m_nvg, nvgRGBA(255,255,255,192) ); nvgStroke(m_nvg); // Color selector stroke. paint = nvgRadialGradient(m_nvg, sel[0], sel[1], 7.0f, 9.0f, nvgRGBA(0,0,0,64), nvgRGBA(0,0,0,0) ); nvgBeginPath(m_nvg); nvgRect(m_nvg, sel[0]-20.0f, sel[1]-20.0f, 40.0f, 40.0f); nvgCircle(m_nvg, sel[0], sel[1], 7.0f); nvgPathWinding(m_nvg, NVG_HOLE); nvgFillPaint(m_nvg, paint); nvgFill(m_nvg); } nvgRestore(m_nvg); } nvgRestore(m_nvg); } int32_t m_mx; int32_t m_my; int32_t m_scroll; uint32_t m_active; uint32_t m_hot; uint32_t m_hotToBe; int32_t m_dragX; int32_t m_dragY; float m_dragOrig; int32_t m_widgetX; int32_t m_widgetY; int32_t m_widgetW; bool m_left; bool m_leftPressed; bool m_leftReleased; bool m_isHot; bool m_isActive; bool m_wentActive; bool m_insideCurrentScroll; uint32_t m_areaId; uint32_t m_widgetId; uint16_t m_scissor; float m_tempCoords[MAX_TEMP_COORDS * 2]; float m_tempNormals[MAX_TEMP_COORDS * 2]; float m_circleVerts[NUM_CIRCLE_VERTS * 2]; int32_t m_scrollTop; int32_t m_scrollBottom; int32_t m_scrollRight; int32_t m_scrollAreaTop; int32_t m_scrollAreaWidth; int32_t m_scrollAreaX; int32_t* m_scrollVal; int32_t m_focusTop; int32_t m_focusBottom; uint32_t m_scrollId; bool m_insideScrollArea; uint16_t m_textureWidth; uint16_t m_textureHeight; float m_invTextureWidth; float m_invTextureHeight; float m_halfTexel; NVGcontext* m_nvg; uint8_t m_view; bgfx::UniformHandle u_texColor; bgfx::ProgramHandle m_colorProgram; bgfx::ProgramHandle m_textureProgram; #if !USE_NANOVG_FONT stbtt_bakedchar m_cdata[96]; // ASCII 32..126 is 95 glyphs bgfx::TextureHandle m_fontTexture; #endif // !USE_NANOVG_FONT }; static Imgui s_imgui; bool imguiCreate(const void* _data) { return s_imgui.create(_data); } void imguiDestroy() { s_imgui.destroy(); } void imguiBeginFrame(int32_t _mx, int32_t _my, uint8_t _button, int32_t _scroll, uint16_t _width, uint16_t _height, uint8_t _view) { s_imgui.beginFrame(_mx, _my, _button, _scroll, _width, _height, _view); } void imguiEndFrame() { s_imgui.endFrame(); } bool imguiBeginScrollArea(const char* _name, int32_t _x, int32_t _y, int32_t _width, int32_t _height, int32_t* _scroll) { return s_imgui.beginScrollArea(_name, _x, _y, _width, _height, _scroll); } void imguiEndScrollArea() { return s_imgui.endScrollArea(); } void imguiIndent() { s_imgui.indent(); } void imguiUnindent() { s_imgui.unindent(); } void imguiSeparator() { s_imgui.separator(); } void imguiSeparatorLine() { s_imgui.separatorLine(); } bool imguiButton(const char* _text, bool _enabled) { return s_imgui.button(_text, _enabled); } bool imguiItem(const char* _text, bool _enabled) { return s_imgui.item(_text, _enabled); } bool imguiCheck(const char* _text, bool _checked, bool _enabled) { return s_imgui.check(_text, _checked, _enabled); } bool imguiCollapse(const char* _text, const char* _subtext, bool _checked, bool _enabled) { return s_imgui.collapse(_text, _subtext, _checked, _enabled); } void imguiLabel(const char* _format, ...) { va_list argList; va_start(argList, _format); s_imgui.labelVargs(_format, argList); va_end(argList); } void imguiValue(const char* _text) { s_imgui.value(_text); } bool imguiSlider(const char* _text, float& _val, float _vmin, float _vmax, float _vinc, bool _enabled) { return s_imgui.slider(_text, _val, _vmin, _vmax, _vinc, _enabled); } bool imguiSlider(const char* _text, int32_t& _val, int32_t _vmin, int32_t _vmax, bool _enabled) { float val = (float)_val; bool result = s_imgui.slider(_text, val, (float)_vmin, (float)_vmax, 1.0f, _enabled); _val = (int32_t)val; return result; } uint32_t imguiChooseUseMacroInstead(uint32_t _selected, ...) { va_list argList; va_start(argList, _selected); const char* str = va_arg(argList, const char*); for (uint32_t ii = 0; str != NULL; ++ii, str = va_arg(argList, const char*) ) { if (imguiCheck(str, ii == _selected) ) { _selected = ii; } } va_end(argList); return _selected; } void imguiDrawText(int32_t _x, int32_t _y, ImguiTextAlign::Enum _align, const char* _text, uint32_t _argb) { s_imgui.drawText(_x, _y, _align, _text, _argb); } void imguiDrawLine(float _x0, float _y0, float _x1, float _y1, float _r, uint32_t _argb) { s_imgui.drawLine(_x0, _y0, _x1, _y1, _r, _argb); } void imguiDrawRoundedRect(float _x, float _y, float _width, float _height, float _r, uint32_t _argb) { s_imgui.drawRoundedRect(_x, _y, _width, _height, _r, _argb); } void imguiDrawRect(float _x, float _y, float _width, float _height, uint32_t _argb) { s_imgui.drawRect(_x, _y, _width, _height, _argb); } void imguiBool(const char* _text, bool& _flag, bool _enabled) { if (imguiCheck(_text, _flag, _enabled) ) { _flag = !_flag; } } void imguiColorWheel(float _rgb[3], bool _respectIndentation, bool _enabled) { s_imgui.colorWheelWidget(_rgb, _respectIndentation, _enabled); } void imguiColorWheel(const char* _text, float _rgb[3], bool& _activated, bool _enabled) { char buf[128]; bx::snprintf(buf, sizeof(buf), "%s [RGB %-2.2f %-2.2f %-2.2f]" , _text , _rgb[0] , _rgb[1] , _rgb[2] ); if (imguiButton(buf, true) ) { _activated = !_activated; } if (_activated) { imguiColorWheel(_rgb, false, _enabled); } }