825 lines
37 KiB
C
825 lines
37 KiB
C
/* nuklear - v1.05 - public domain */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <string.h>
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#include <math.h>
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#include <assert.h>
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#include <time.h>
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#include <limits.h>
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#include <GL/glew.h>
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#include <GLFW/glfw3.h>
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#define NK_INCLUDE_FIXED_TYPES
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#define NK_INCLUDE_STANDARD_IO
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#define NK_INCLUDE_DEFAULT_ALLOCATOR
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#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
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#define NK_INCLUDE_FONT_BAKING
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#define NK_INCLUDE_DEFAULT_FONT
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#define NK_IMPLEMENTATION
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#include "../nuklear.h"
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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/* macros */
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#define WINDOW_WIDTH 1200
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#define WINDOW_HEIGHT 800
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#define MAX_VERTEX_MEMORY 512 * 1024
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#define MAX_ELEMENT_MEMORY 128 * 1024
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#define UNUSED(a) (void)a
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) < (b) ? (b) : (a))
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#define LEN(a) (sizeof(a)/sizeof(a)[0])
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#ifdef __APPLE__
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#define NK_SHADER_VERSION "#version 150\n"
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#else
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#define NK_SHADER_VERSION "#version 300 es\n"
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#endif
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struct media {
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GLint skin;
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struct nk_image menu;
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struct nk_image check;
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struct nk_image check_cursor;
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struct nk_image option;
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struct nk_image option_cursor;
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struct nk_image header;
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struct nk_image window;
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struct nk_image scrollbar_inc_button;
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struct nk_image scrollbar_inc_button_hover;
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struct nk_image scrollbar_dec_button;
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struct nk_image scrollbar_dec_button_hover;
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struct nk_image button;
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struct nk_image button_hover;
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struct nk_image button_active;
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struct nk_image tab_minimize;
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struct nk_image tab_maximize;
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struct nk_image slider;
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struct nk_image slider_hover;
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struct nk_image slider_active;
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};
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/* ===============================================================
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*
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* DEVICE
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*
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* ===============================================================*/
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struct nk_glfw_vertex {
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float position[2];
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float uv[2];
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nk_byte col[4];
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};
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struct device {
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struct nk_buffer cmds;
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struct nk_draw_null_texture null;
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GLuint vbo, vao, ebo;
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GLuint prog;
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GLuint vert_shdr;
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GLuint frag_shdr;
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GLint attrib_pos;
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GLint attrib_uv;
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GLint attrib_col;
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GLint uniform_tex;
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GLint uniform_proj;
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GLuint font_tex;
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};
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static void
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die(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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fputs("\n", stderr);
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exit(EXIT_FAILURE);
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}
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static GLuint
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image_load(const char *filename)
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{
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int x,y,n;
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GLuint tex;
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unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
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if (!data) die("failed to load image: %s", filename);
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glGenTextures(1, &tex);
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glBindTexture(GL_TEXTURE_2D, tex);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
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glGenerateMipmap(GL_TEXTURE_2D);
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stbi_image_free(data);
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return tex;
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}
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static void
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device_init(struct device *dev)
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{
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GLint status;
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static const GLchar *vertex_shader =
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NK_SHADER_VERSION
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"uniform mat4 ProjMtx;\n"
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"in vec2 Position;\n"
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"in vec2 TexCoord;\n"
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"in vec4 Color;\n"
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"out vec2 Frag_UV;\n"
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"out vec4 Frag_Color;\n"
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"void main() {\n"
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" Frag_UV = TexCoord;\n"
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" Frag_Color = Color;\n"
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" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
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"}\n";
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static const GLchar *fragment_shader =
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NK_SHADER_VERSION
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"precision mediump float;\n"
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"uniform sampler2D Texture;\n"
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"in vec2 Frag_UV;\n"
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"in vec4 Frag_Color;\n"
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"out vec4 Out_Color;\n"
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"void main(){\n"
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" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
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"}\n";
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nk_buffer_init_default(&dev->cmds);
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dev->prog = glCreateProgram();
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dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
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dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
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glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
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glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
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glCompileShader(dev->vert_shdr);
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glCompileShader(dev->frag_shdr);
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glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
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assert(status == GL_TRUE);
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glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
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assert(status == GL_TRUE);
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glAttachShader(dev->prog, dev->vert_shdr);
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glAttachShader(dev->prog, dev->frag_shdr);
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glLinkProgram(dev->prog);
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glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
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assert(status == GL_TRUE);
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dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
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dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
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dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
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dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
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dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
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{
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/* buffer setup */
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GLsizei vs = sizeof(struct nk_glfw_vertex);
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size_t vp = offsetof(struct nk_glfw_vertex, position);
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size_t vt = offsetof(struct nk_glfw_vertex, uv);
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size_t vc = offsetof(struct nk_glfw_vertex, col);
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glGenBuffers(1, &dev->vbo);
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glGenBuffers(1, &dev->ebo);
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glGenVertexArrays(1, &dev->vao);
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glBindVertexArray(dev->vao);
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glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
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glEnableVertexAttribArray((GLuint)dev->attrib_pos);
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glEnableVertexAttribArray((GLuint)dev->attrib_uv);
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glEnableVertexAttribArray((GLuint)dev->attrib_col);
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glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
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glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
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glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
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}
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glBindTexture(GL_TEXTURE_2D, 0);
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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glBindVertexArray(0);
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}
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static void
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device_upload_atlas(struct device *dev, const void *image, int width, int height)
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{
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glGenTextures(1, &dev->font_tex);
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glBindTexture(GL_TEXTURE_2D, dev->font_tex);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
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GL_RGBA, GL_UNSIGNED_BYTE, image);
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}
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static void
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device_shutdown(struct device *dev)
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{
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glDetachShader(dev->prog, dev->vert_shdr);
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glDetachShader(dev->prog, dev->frag_shdr);
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glDeleteShader(dev->vert_shdr);
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glDeleteShader(dev->frag_shdr);
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glDeleteProgram(dev->prog);
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glDeleteTextures(1, &dev->font_tex);
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glDeleteBuffers(1, &dev->vbo);
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glDeleteBuffers(1, &dev->ebo);
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nk_buffer_free(&dev->cmds);
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}
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static void
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device_draw(struct device *dev, struct nk_context *ctx, int width, int height,
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struct nk_vec2 scale, enum nk_anti_aliasing AA)
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{
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GLfloat ortho[4][4] = {
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{2.0f, 0.0f, 0.0f, 0.0f},
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{0.0f,-2.0f, 0.0f, 0.0f},
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{0.0f, 0.0f,-1.0f, 0.0f},
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{-1.0f,1.0f, 0.0f, 1.0f},
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};
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ortho[0][0] /= (GLfloat)width;
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ortho[1][1] /= (GLfloat)height;
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/* setup global state */
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glEnable(GL_BLEND);
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glBlendEquation(GL_FUNC_ADD);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glDisable(GL_CULL_FACE);
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glDisable(GL_DEPTH_TEST);
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glEnable(GL_SCISSOR_TEST);
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glActiveTexture(GL_TEXTURE0);
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/* setup program */
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glUseProgram(dev->prog);
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glUniform1i(dev->uniform_tex, 0);
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glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
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{
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/* convert from command queue into draw list and draw to screen */
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const struct nk_draw_command *cmd;
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void *vertices, *elements;
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const nk_draw_index *offset = NULL;
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/* allocate vertex and element buffer */
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glBindVertexArray(dev->vao);
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glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
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glBufferData(GL_ARRAY_BUFFER, MAX_VERTEX_MEMORY, NULL, GL_STREAM_DRAW);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, MAX_ELEMENT_MEMORY, NULL, GL_STREAM_DRAW);
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/* load draw vertices & elements directly into vertex + element buffer */
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vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
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elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
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{
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/* fill convert configuration */
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struct nk_convert_config config;
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static const struct nk_draw_vertex_layout_element vertex_layout[] = {
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{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
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{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
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{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
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{NK_VERTEX_LAYOUT_END}
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};
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NK_MEMSET(&config, 0, sizeof(config));
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config.vertex_layout = vertex_layout;
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config.vertex_size = sizeof(struct nk_glfw_vertex);
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config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
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config.null = dev->null;
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config.circle_segment_count = 22;
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config.curve_segment_count = 22;
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config.arc_segment_count = 22;
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config.global_alpha = 1.0f;
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config.shape_AA = AA;
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config.line_AA = AA;
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/* setup buffers to load vertices and elements */
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{struct nk_buffer vbuf, ebuf;
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nk_buffer_init_fixed(&vbuf, vertices, MAX_VERTEX_MEMORY);
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nk_buffer_init_fixed(&ebuf, elements, MAX_ELEMENT_MEMORY);
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nk_convert(ctx, &dev->cmds, &vbuf, &ebuf, &config);}
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}
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glUnmapBuffer(GL_ARRAY_BUFFER);
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glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
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/* iterate over and execute each draw command */
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nk_draw_foreach(cmd, ctx, &dev->cmds)
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{
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if (!cmd->elem_count) continue;
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glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
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glScissor(
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(GLint)(cmd->clip_rect.x * scale.x),
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(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * scale.y),
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(GLint)(cmd->clip_rect.w * scale.x),
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(GLint)(cmd->clip_rect.h * scale.y));
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glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
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offset += cmd->elem_count;
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}
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nk_clear(ctx);
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nk_buffer_clear(&dev->cmds);
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}
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/* default OpenGL state */
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glUseProgram(0);
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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glBindVertexArray(0);
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glDisable(GL_BLEND);
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glDisable(GL_SCISSOR_TEST);
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}
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/* glfw callbacks (I don't know if there is a easier way to access text and scroll )*/
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static void error_callback(int e, const char *d){printf("Error %d: %s\n", e, d);}
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static void text_input(GLFWwindow *win, unsigned int codepoint)
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{nk_input_unicode((struct nk_context*)glfwGetWindowUserPointer(win), codepoint);}
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static void scroll_input(GLFWwindow *win, double _, double yoff)
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{UNUSED(_);nk_input_scroll((struct nk_context*)glfwGetWindowUserPointer(win), nk_vec2(0, (float)yoff));}
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int main(int argc, char *argv[])
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{
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/* Platform */
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static GLFWwindow *win;
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int width = 0, height = 0;
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int display_width=0, display_height=0;
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/* GUI */
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struct device device;
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struct nk_font_atlas atlas;
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struct media media;
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struct nk_context ctx;
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struct nk_font *font;
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/* GLFW */
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glfwSetErrorCallback(error_callback);
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if (!glfwInit()) {
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fprintf(stdout, "[GFLW] failed to init!\n");
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exit(1);
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}
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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#ifdef __APPLE__
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
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#endif
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win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
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glfwMakeContextCurrent(win);
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glfwSetWindowUserPointer(win, &ctx);
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glfwSetCharCallback(win, text_input);
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glfwSetScrollCallback(win, scroll_input);
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glfwGetWindowSize(win, &width, &height);
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glfwGetFramebufferSize(win, &display_width, &display_height);
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/* OpenGL */
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glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
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glewExperimental = 1;
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if (glewInit() != GLEW_OK) {
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fprintf(stderr, "Failed to setup GLEW\n");
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exit(1);
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}
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/* GUI */
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{device_init(&device);
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{const void *image; int w, h;
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const char *font_path = (argc > 1) ? argv[1]: 0;
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nk_font_atlas_init_default(&atlas);
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nk_font_atlas_begin(&atlas);
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if (font_path) font = nk_font_atlas_add_from_file(&atlas, font_path, 13.0f, NULL);
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else font = nk_font_atlas_add_default(&atlas, 13.0f, NULL);
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image = nk_font_atlas_bake(&atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
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device_upload_atlas(&device, image, w, h);
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nk_font_atlas_end(&atlas, nk_handle_id((int)device.font_tex), &device.null);}
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nk_init_default(&ctx, &font->handle);}
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{ /* skin */
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glEnable(GL_TEXTURE_2D);
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media.skin = image_load("../skins/gwen.png");
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media.check = nk_subimage_id(media.skin, 512,512, nk_rect(464,32,15,15));
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media.check_cursor = nk_subimage_id(media.skin, 512,512, nk_rect(450,34,11,11));
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media.option = nk_subimage_id(media.skin, 512,512, nk_rect(464,64,15,15));
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media.option_cursor = nk_subimage_id(media.skin, 512,512, nk_rect(451,67,9,9));
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media.header = nk_subimage_id(media.skin, 512,512, nk_rect(128,0,127,24));
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media.window = nk_subimage_id(media.skin, 512,512, nk_rect(128,23,127,104));
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media.scrollbar_inc_button = nk_subimage_id(media.skin, 512,512, nk_rect(464,256,15,15));
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media.scrollbar_inc_button_hover = nk_subimage_id(media.skin, 512,512, nk_rect(464,320,15,15));
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media.scrollbar_dec_button = nk_subimage_id(media.skin, 512,512, nk_rect(464,224,15,15));
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media.scrollbar_dec_button_hover = nk_subimage_id(media.skin, 512,512, nk_rect(464,288,15,15));
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media.button = nk_subimage_id(media.skin, 512,512, nk_rect(384,336,127,31));
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media.button_hover = nk_subimage_id(media.skin, 512,512, nk_rect(384,368,127,31));
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media.button_active = nk_subimage_id(media.skin, 512,512, nk_rect(384,400,127,31));
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media.tab_minimize = nk_subimage_id(media.skin, 512,512, nk_rect(451, 99, 9, 9));
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media.tab_maximize = nk_subimage_id(media.skin, 512,512, nk_rect(467,99,9,9));
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media.slider = nk_subimage_id(media.skin, 512,512, nk_rect(418,33,11,14));
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media.slider_hover = nk_subimage_id(media.skin, 512,512, nk_rect(418,49,11,14));
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media.slider_active = nk_subimage_id(media.skin, 512,512, nk_rect(418,64,11,14));
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/* window */
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ctx.style.window.background = nk_rgb(204,204,204);
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ctx.style.window.fixed_background = nk_style_item_image(media.window);
|
|
ctx.style.window.border_color = nk_rgb(67,67,67);
|
|
ctx.style.window.combo_border_color = nk_rgb(67,67,67);
|
|
ctx.style.window.contextual_border_color = nk_rgb(67,67,67);
|
|
ctx.style.window.menu_border_color = nk_rgb(67,67,67);
|
|
ctx.style.window.group_border_color = nk_rgb(67,67,67);
|
|
ctx.style.window.tooltip_border_color = nk_rgb(67,67,67);
|
|
ctx.style.window.scrollbar_size = nk_vec2(16,16);
|
|
ctx.style.window.border_color = nk_rgba(0,0,0,0);
|
|
ctx.style.window.padding = nk_vec2(8,4);
|
|
ctx.style.window.border = 3;
|
|
|
|
/* window header */
|
|
ctx.style.window.header.normal = nk_style_item_image(media.header);
|
|
ctx.style.window.header.hover = nk_style_item_image(media.header);
|
|
ctx.style.window.header.active = nk_style_item_image(media.header);
|
|
ctx.style.window.header.label_normal = nk_rgb(95,95,95);
|
|
ctx.style.window.header.label_hover = nk_rgb(95,95,95);
|
|
ctx.style.window.header.label_active = nk_rgb(95,95,95);
|
|
|
|
/* scrollbar */
|
|
ctx.style.scrollv.normal = nk_style_item_color(nk_rgb(184,184,184));
|
|
ctx.style.scrollv.hover = nk_style_item_color(nk_rgb(184,184,184));
|
|
ctx.style.scrollv.active = nk_style_item_color(nk_rgb(184,184,184));
|
|
ctx.style.scrollv.cursor_normal = nk_style_item_color(nk_rgb(220,220,220));
|
|
ctx.style.scrollv.cursor_hover = nk_style_item_color(nk_rgb(235,235,235));
|
|
ctx.style.scrollv.cursor_active = nk_style_item_color(nk_rgb(99,202,255));
|
|
ctx.style.scrollv.dec_symbol = NK_SYMBOL_NONE;
|
|
ctx.style.scrollv.inc_symbol = NK_SYMBOL_NONE;
|
|
ctx.style.scrollv.show_buttons = nk_true;
|
|
ctx.style.scrollv.border_color = nk_rgb(81,81,81);
|
|
ctx.style.scrollv.cursor_border_color = nk_rgb(81,81,81);
|
|
ctx.style.scrollv.border = 1;
|
|
ctx.style.scrollv.rounding = 0;
|
|
ctx.style.scrollv.border_cursor = 1;
|
|
ctx.style.scrollv.rounding_cursor = 2;
|
|
|
|
/* scrollbar buttons */
|
|
ctx.style.scrollv.inc_button.normal = nk_style_item_image(media.scrollbar_inc_button);
|
|
ctx.style.scrollv.inc_button.hover = nk_style_item_image(media.scrollbar_inc_button_hover);
|
|
ctx.style.scrollv.inc_button.active = nk_style_item_image(media.scrollbar_inc_button_hover);
|
|
ctx.style.scrollv.inc_button.border_color = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.inc_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.inc_button.text_normal = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.inc_button.text_hover = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.inc_button.text_active = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.inc_button.border = 0.0f;
|
|
|
|
ctx.style.scrollv.dec_button.normal = nk_style_item_image(media.scrollbar_dec_button);
|
|
ctx.style.scrollv.dec_button.hover = nk_style_item_image(media.scrollbar_dec_button_hover);
|
|
ctx.style.scrollv.dec_button.active = nk_style_item_image(media.scrollbar_dec_button_hover);
|
|
ctx.style.scrollv.dec_button.border_color = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.dec_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.dec_button.text_normal = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.dec_button.text_hover = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.dec_button.text_active = nk_rgba(0,0,0,0);
|
|
ctx.style.scrollv.dec_button.border = 0.0f;
|
|
|
|
/* checkbox toggle */
|
|
{struct nk_style_toggle *toggle;
|
|
toggle = &ctx.style.checkbox;
|
|
toggle->normal = nk_style_item_image(media.check);
|
|
toggle->hover = nk_style_item_image(media.check);
|
|
toggle->active = nk_style_item_image(media.check);
|
|
toggle->cursor_normal = nk_style_item_image(media.check_cursor);
|
|
toggle->cursor_hover = nk_style_item_image(media.check_cursor);
|
|
toggle->text_normal = nk_rgb(95,95,95);
|
|
toggle->text_hover = nk_rgb(95,95,95);
|
|
toggle->text_active = nk_rgb(95,95,95);}
|
|
|
|
/* option toggle */
|
|
{struct nk_style_toggle *toggle;
|
|
toggle = &ctx.style.option;
|
|
toggle->normal = nk_style_item_image(media.option);
|
|
toggle->hover = nk_style_item_image(media.option);
|
|
toggle->active = nk_style_item_image(media.option);
|
|
toggle->cursor_normal = nk_style_item_image(media.option_cursor);
|
|
toggle->cursor_hover = nk_style_item_image(media.option_cursor);
|
|
toggle->text_normal = nk_rgb(95,95,95);
|
|
toggle->text_hover = nk_rgb(95,95,95);
|
|
toggle->text_active = nk_rgb(95,95,95);}
|
|
|
|
/* default button */
|
|
ctx.style.button.normal = nk_style_item_image(media.button);
|
|
ctx.style.button.hover = nk_style_item_image(media.button_hover);
|
|
ctx.style.button.active = nk_style_item_image(media.button_active);
|
|
ctx.style.button.border_color = nk_rgba(0,0,0,0);
|
|
ctx.style.button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.button.text_normal = nk_rgb(95,95,95);
|
|
ctx.style.button.text_hover = nk_rgb(95,95,95);
|
|
ctx.style.button.text_active = nk_rgb(95,95,95);
|
|
|
|
/* default text */
|
|
ctx.style.text.color = nk_rgb(95,95,95);
|
|
|
|
/* contextual button */
|
|
ctx.style.contextual_button.normal = nk_style_item_color(nk_rgb(206,206,206));
|
|
ctx.style.contextual_button.hover = nk_style_item_color(nk_rgb(229,229,229));
|
|
ctx.style.contextual_button.active = nk_style_item_color(nk_rgb(99,202,255));
|
|
ctx.style.contextual_button.border_color = nk_rgba(0,0,0,0);
|
|
ctx.style.contextual_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.contextual_button.text_normal = nk_rgb(95,95,95);
|
|
ctx.style.contextual_button.text_hover = nk_rgb(95,95,95);
|
|
ctx.style.contextual_button.text_active = nk_rgb(95,95,95);
|
|
|
|
/* menu button */
|
|
ctx.style.menu_button.normal = nk_style_item_color(nk_rgb(206,206,206));
|
|
ctx.style.menu_button.hover = nk_style_item_color(nk_rgb(229,229,229));
|
|
ctx.style.menu_button.active = nk_style_item_color(nk_rgb(99,202,255));
|
|
ctx.style.menu_button.border_color = nk_rgba(0,0,0,0);
|
|
ctx.style.menu_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.menu_button.text_normal = nk_rgb(95,95,95);
|
|
ctx.style.menu_button.text_hover = nk_rgb(95,95,95);
|
|
ctx.style.menu_button.text_active = nk_rgb(95,95,95);
|
|
|
|
/* tree */
|
|
ctx.style.tab.text = nk_rgb(95,95,95);
|
|
ctx.style.tab.tab_minimize_button.normal = nk_style_item_image(media.tab_minimize);
|
|
ctx.style.tab.tab_minimize_button.hover = nk_style_item_image(media.tab_minimize);
|
|
ctx.style.tab.tab_minimize_button.active = nk_style_item_image(media.tab_minimize);
|
|
ctx.style.tab.tab_minimize_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.tab_minimize_button.text_normal = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.tab_minimize_button.text_hover = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.tab_minimize_button.text_active = nk_rgba(0,0,0,0);
|
|
|
|
ctx.style.tab.tab_maximize_button.normal = nk_style_item_image(media.tab_maximize);
|
|
ctx.style.tab.tab_maximize_button.hover = nk_style_item_image(media.tab_maximize);
|
|
ctx.style.tab.tab_maximize_button.active = nk_style_item_image(media.tab_maximize);
|
|
ctx.style.tab.tab_maximize_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.tab_maximize_button.text_normal = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.tab_maximize_button.text_hover = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.tab_maximize_button.text_active = nk_rgba(0,0,0,0);
|
|
|
|
ctx.style.tab.node_minimize_button.normal = nk_style_item_image(media.tab_minimize);
|
|
ctx.style.tab.node_minimize_button.hover = nk_style_item_image(media.tab_minimize);
|
|
ctx.style.tab.node_minimize_button.active = nk_style_item_image(media.tab_minimize);
|
|
ctx.style.tab.node_minimize_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.node_minimize_button.text_normal = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.node_minimize_button.text_hover = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.node_minimize_button.text_active = nk_rgba(0,0,0,0);
|
|
|
|
ctx.style.tab.node_maximize_button.normal = nk_style_item_image(media.tab_maximize);
|
|
ctx.style.tab.node_maximize_button.hover = nk_style_item_image(media.tab_maximize);
|
|
ctx.style.tab.node_maximize_button.active = nk_style_item_image(media.tab_maximize);
|
|
ctx.style.tab.node_maximize_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.node_maximize_button.text_normal = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.node_maximize_button.text_hover = nk_rgba(0,0,0,0);
|
|
ctx.style.tab.node_maximize_button.text_active = nk_rgba(0,0,0,0);
|
|
|
|
/* selectable */
|
|
ctx.style.selectable.normal = nk_style_item_color(nk_rgb(206,206,206));
|
|
ctx.style.selectable.hover = nk_style_item_color(nk_rgb(206,206,206));
|
|
ctx.style.selectable.pressed = nk_style_item_color(nk_rgb(206,206,206));
|
|
ctx.style.selectable.normal_active = nk_style_item_color(nk_rgb(185,205,248));
|
|
ctx.style.selectable.hover_active = nk_style_item_color(nk_rgb(185,205,248));
|
|
ctx.style.selectable.pressed_active = nk_style_item_color(nk_rgb(185,205,248));
|
|
ctx.style.selectable.text_normal = nk_rgb(95,95,95);
|
|
ctx.style.selectable.text_hover = nk_rgb(95,95,95);
|
|
ctx.style.selectable.text_pressed = nk_rgb(95,95,95);
|
|
ctx.style.selectable.text_normal_active = nk_rgb(95,95,95);
|
|
ctx.style.selectable.text_hover_active = nk_rgb(95,95,95);
|
|
ctx.style.selectable.text_pressed_active = nk_rgb(95,95,95);
|
|
|
|
/* slider */
|
|
ctx.style.slider.normal = nk_style_item_hide();
|
|
ctx.style.slider.hover = nk_style_item_hide();
|
|
ctx.style.slider.active = nk_style_item_hide();
|
|
ctx.style.slider.bar_normal = nk_rgb(156,156,156);
|
|
ctx.style.slider.bar_hover = nk_rgb(156,156,156);
|
|
ctx.style.slider.bar_active = nk_rgb(156,156,156);
|
|
ctx.style.slider.bar_filled = nk_rgb(156,156,156);
|
|
ctx.style.slider.cursor_normal = nk_style_item_image(media.slider);
|
|
ctx.style.slider.cursor_hover = nk_style_item_image(media.slider_hover);
|
|
ctx.style.slider.cursor_active = nk_style_item_image(media.slider_active);
|
|
ctx.style.slider.cursor_size = nk_vec2(16.5f,21);
|
|
ctx.style.slider.bar_height = 1;
|
|
|
|
/* progressbar */
|
|
ctx.style.progress.normal = nk_style_item_color(nk_rgb(231,231,231));
|
|
ctx.style.progress.hover = nk_style_item_color(nk_rgb(231,231,231));
|
|
ctx.style.progress.active = nk_style_item_color(nk_rgb(231,231,231));
|
|
ctx.style.progress.cursor_normal = nk_style_item_color(nk_rgb(63,242,93));
|
|
ctx.style.progress.cursor_hover = nk_style_item_color(nk_rgb(63,242,93));
|
|
ctx.style.progress.cursor_active = nk_style_item_color(nk_rgb(63,242,93));
|
|
ctx.style.progress.border_color = nk_rgb(114,116,115);
|
|
ctx.style.progress.padding = nk_vec2(0,0);
|
|
ctx.style.progress.border = 2;
|
|
ctx.style.progress.rounding = 1;
|
|
|
|
/* combo */
|
|
ctx.style.combo.normal = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.combo.hover = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.combo.active = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.combo.border_color = nk_rgb(95,95,95);
|
|
ctx.style.combo.label_normal = nk_rgb(95,95,95);
|
|
ctx.style.combo.label_hover = nk_rgb(95,95,95);
|
|
ctx.style.combo.label_active = nk_rgb(95,95,95);
|
|
ctx.style.combo.border = 1;
|
|
ctx.style.combo.rounding = 1;
|
|
|
|
/* combo button */
|
|
ctx.style.combo.button.normal = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.combo.button.hover = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.combo.button.active = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.combo.button.text_background = nk_rgb(216,216,216);
|
|
ctx.style.combo.button.text_normal = nk_rgb(95,95,95);
|
|
ctx.style.combo.button.text_hover = nk_rgb(95,95,95);
|
|
ctx.style.combo.button.text_active = nk_rgb(95,95,95);
|
|
|
|
/* property */
|
|
ctx.style.property.normal = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.hover = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.active = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.border_color = nk_rgb(81,81,81);
|
|
ctx.style.property.label_normal = nk_rgb(95,95,95);
|
|
ctx.style.property.label_hover = nk_rgb(95,95,95);
|
|
ctx.style.property.label_active = nk_rgb(95,95,95);
|
|
ctx.style.property.sym_left = NK_SYMBOL_TRIANGLE_LEFT;
|
|
ctx.style.property.sym_right = NK_SYMBOL_TRIANGLE_RIGHT;
|
|
ctx.style.property.rounding = 10;
|
|
ctx.style.property.border = 1;
|
|
|
|
/* edit */
|
|
ctx.style.edit.normal = nk_style_item_color(nk_rgb(240,240,240));
|
|
ctx.style.edit.hover = nk_style_item_color(nk_rgb(240,240,240));
|
|
ctx.style.edit.active = nk_style_item_color(nk_rgb(240,240,240));
|
|
ctx.style.edit.border_color = nk_rgb(62,62,62);
|
|
ctx.style.edit.cursor_normal = nk_rgb(99,202,255);
|
|
ctx.style.edit.cursor_hover = nk_rgb(99,202,255);
|
|
ctx.style.edit.cursor_text_normal = nk_rgb(95,95,95);
|
|
ctx.style.edit.cursor_text_hover = nk_rgb(95,95,95);
|
|
ctx.style.edit.text_normal = nk_rgb(95,95,95);
|
|
ctx.style.edit.text_hover = nk_rgb(95,95,95);
|
|
ctx.style.edit.text_active = nk_rgb(95,95,95);
|
|
ctx.style.edit.selected_normal = nk_rgb(99,202,255);
|
|
ctx.style.edit.selected_hover = nk_rgb(99,202,255);
|
|
ctx.style.edit.selected_text_normal = nk_rgb(95,95,95);
|
|
ctx.style.edit.selected_text_hover = nk_rgb(95,95,95);
|
|
ctx.style.edit.border = 1;
|
|
ctx.style.edit.rounding = 2;
|
|
|
|
/* property buttons */
|
|
ctx.style.property.dec_button.normal = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.dec_button.hover = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.dec_button.active = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.dec_button.text_background = nk_rgba(0,0,0,0);
|
|
ctx.style.property.dec_button.text_normal = nk_rgb(95,95,95);
|
|
ctx.style.property.dec_button.text_hover = nk_rgb(95,95,95);
|
|
ctx.style.property.dec_button.text_active = nk_rgb(95,95,95);
|
|
ctx.style.property.inc_button = ctx.style.property.dec_button;
|
|
|
|
/* property edit */
|
|
ctx.style.property.edit.normal = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.edit.hover = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.edit.active = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.property.edit.border_color = nk_rgba(0,0,0,0);
|
|
ctx.style.property.edit.cursor_normal = nk_rgb(95,95,95);
|
|
ctx.style.property.edit.cursor_hover = nk_rgb(95,95,95);
|
|
ctx.style.property.edit.cursor_text_normal = nk_rgb(216,216,216);
|
|
ctx.style.property.edit.cursor_text_hover = nk_rgb(216,216,216);
|
|
ctx.style.property.edit.text_normal = nk_rgb(95,95,95);
|
|
ctx.style.property.edit.text_hover = nk_rgb(95,95,95);
|
|
ctx.style.property.edit.text_active = nk_rgb(95,95,95);
|
|
ctx.style.property.edit.selected_normal = nk_rgb(95,95,95);
|
|
ctx.style.property.edit.selected_hover = nk_rgb(95,95,95);
|
|
ctx.style.property.edit.selected_text_normal = nk_rgb(216,216,216);
|
|
ctx.style.property.edit.selected_text_hover = nk_rgb(216,216,216);
|
|
|
|
/* chart */
|
|
ctx.style.chart.background = nk_style_item_color(nk_rgb(216,216,216));
|
|
ctx.style.chart.border_color = nk_rgb(81,81,81);
|
|
ctx.style.chart.color = nk_rgb(95,95,95);
|
|
ctx.style.chart.selected_color = nk_rgb(255,0,0);
|
|
ctx.style.chart.border = 1;
|
|
}
|
|
|
|
while (!glfwWindowShouldClose(win))
|
|
{
|
|
/* High DPI displays */
|
|
struct nk_vec2 scale;
|
|
glfwGetWindowSize(win, &width, &height);
|
|
glfwGetFramebufferSize(win, &display_width, &display_height);
|
|
scale.x = (float)display_width/(float)width;
|
|
scale.y = (float)display_height/(float)height;
|
|
|
|
/* Input */
|
|
{double x, y;
|
|
nk_input_begin(&ctx);
|
|
glfwPollEvents();
|
|
nk_input_key(&ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
|
|
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
|
|
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
|
|
nk_input_key(&ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_P) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
|
|
nk_input_key(&ctx, NK_KEY_SHIFT, 1);
|
|
} else {
|
|
nk_input_key(&ctx, NK_KEY_COPY, 0);
|
|
nk_input_key(&ctx, NK_KEY_PASTE, 0);
|
|
nk_input_key(&ctx, NK_KEY_CUT, 0);
|
|
nk_input_key(&ctx, NK_KEY_SHIFT, 0);
|
|
}
|
|
glfwGetCursorPos(win, &x, &y);
|
|
nk_input_motion(&ctx, (int)x, (int)y);
|
|
nk_input_button(&ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
|
|
nk_input_button(&ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
|
|
nk_input_button(&ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
|
|
nk_input_end(&ctx);}
|
|
|
|
/* GUI */
|
|
{struct nk_panel layout, tab;
|
|
if (nk_begin(&ctx, "Demo", nk_rect(50, 50, 300, 400),
|
|
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_TITLE))
|
|
{
|
|
int i;
|
|
float id;
|
|
static int slider = 10;
|
|
static int field_len;
|
|
static nk_size prog_value = 60;
|
|
static int current_weapon = 0;
|
|
static char field_buffer[64];
|
|
static float pos;
|
|
static const char *weapons[] = {"Fist","Pistol","Shotgun","Plasma","BFG"};
|
|
const float step = (2*3.141592654f) / 32;
|
|
|
|
nk_layout_row_static(&ctx, 30, 120, 1);
|
|
if (nk_button_label(&ctx, "button"))
|
|
fprintf(stdout, "button pressed\n");
|
|
|
|
nk_layout_row_dynamic(&ctx, 20, 1);
|
|
nk_label(&ctx, "Label", NK_TEXT_LEFT);
|
|
nk_layout_row_dynamic(&ctx, 30, 2);
|
|
nk_check_label(&ctx, "inactive", 0);
|
|
nk_check_label(&ctx, "active", 1);
|
|
nk_option_label(&ctx, "active", 1);
|
|
nk_option_label(&ctx, "inactive", 0);
|
|
|
|
nk_layout_row_dynamic(&ctx, 30, 1);
|
|
nk_slider_int(&ctx, 0, &slider, 16, 1);
|
|
nk_layout_row_dynamic(&ctx, 20, 1);
|
|
nk_progress(&ctx, &prog_value, 100, NK_MODIFIABLE);
|
|
|
|
nk_layout_row_dynamic(&ctx, 25, 1);
|
|
nk_edit_string(&ctx, NK_EDIT_FIELD, field_buffer, &field_len, 64, nk_filter_default);
|
|
nk_property_float(&ctx, "#X:", -1024.0f, &pos, 1024.0f, 1, 1);
|
|
current_weapon = nk_combo(&ctx, weapons, LEN(weapons), current_weapon, 25, nk_vec2(nk_widget_width(&ctx),200));
|
|
|
|
nk_layout_row_dynamic(&ctx, 100, 1);
|
|
if (nk_chart_begin_colored(&ctx, NK_CHART_LINES, nk_rgb(255,0,0), nk_rgb(150,0,0), 32, 0.0f, 1.0f)) {
|
|
nk_chart_add_slot_colored(&ctx, NK_CHART_LINES, nk_rgb(0,0,255), nk_rgb(0,0,150),32, -1.0f, 1.0f);
|
|
nk_chart_add_slot_colored(&ctx, NK_CHART_LINES, nk_rgb(0,255,0), nk_rgb(0,150,0), 32, -1.0f, 1.0f);
|
|
for (id = 0, i = 0; i < 32; ++i) {
|
|
nk_chart_push_slot(&ctx, (float)fabs(sin(id)), 0);
|
|
nk_chart_push_slot(&ctx, (float)cos(id), 1);
|
|
nk_chart_push_slot(&ctx, (float)sin(id), 2);
|
|
id += step;
|
|
}
|
|
}
|
|
nk_chart_end(&ctx);
|
|
|
|
nk_layout_row_dynamic(&ctx, 250, 1);
|
|
if (nk_group_begin(&ctx, "Standard", NK_WINDOW_BORDER|NK_WINDOW_BORDER))
|
|
{
|
|
if (nk_tree_push(&ctx, NK_TREE_NODE, "Window", NK_MAXIMIZED)) {
|
|
static int selected[8];
|
|
if (nk_tree_push(&ctx, NK_TREE_NODE, "Next", NK_MAXIMIZED)) {
|
|
nk_layout_row_dynamic(&ctx, 20, 1);
|
|
for (i = 0; i < 4; ++i)
|
|
nk_selectable_label(&ctx, (selected[i]) ? "Selected": "Unselected", NK_TEXT_LEFT, &selected[i]);
|
|
nk_tree_pop(&ctx);
|
|
}
|
|
if (nk_tree_push(&ctx, NK_TREE_NODE, "Previous", NK_MAXIMIZED)) {
|
|
nk_layout_row_dynamic(&ctx, 20, 1);
|
|
for (i = 4; i < 8; ++i)
|
|
nk_selectable_label(&ctx, (selected[i]) ? "Selected": "Unselected", NK_TEXT_LEFT, &selected[i]);
|
|
nk_tree_pop(&ctx);
|
|
}
|
|
nk_tree_pop(&ctx);
|
|
}
|
|
nk_group_end(&ctx);
|
|
}
|
|
}
|
|
nk_end(&ctx);}
|
|
|
|
/* Draw */
|
|
glViewport(0, 0, display_width, display_height);
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
glClearColor(0.5882, 0.6666, 0.6666, 1.0f);
|
|
device_draw(&device, &ctx, width, height, scale, NK_ANTI_ALIASING_ON);
|
|
glfwSwapBuffers(win);
|
|
}
|
|
glDeleteTextures(1,(const GLuint*)&media.skin);
|
|
nk_font_atlas_clear(&atlas);
|
|
nk_free(&ctx);
|
|
device_shutdown(&device);
|
|
glfwTerminate();
|
|
return 0;
|
|
}
|
|
|