diff --git a/demo/sdl_gfx/Makefile b/demo/sdl_gfx/Makefile new file mode 100644 index 00000000..6c2d2558 --- /dev/null +++ b/demo/sdl_gfx/Makefile @@ -0,0 +1,20 @@ +# Install +BIN = demo + +# Flags +CFLAGS = -std=c99 -pedantic -O2 + +SRC = main.c +OBJ = $(SRC:.c=.o) + +ifeq ($(OS),Windows_NT) +BIN := $(BIN).exe +LIBS = -lmingw32 -lSDLmain -lSDL2 -lSDL2_gfx -lm +else +LIBS = -lSDL2 -lSDL2_gfx -lm +endif + +$(BIN): + @mkdir -p bin + rm -f bin/$(BIN) $(OBJS) + $(CC) $(SRC) $(CFLAGS) -o bin/$(BIN) $(LIBS) diff --git a/demo/sdl_gfx/main.c b/demo/sdl_gfx/main.c new file mode 100644 index 00000000..f439dd66 --- /dev/null +++ b/demo/sdl_gfx/main.c @@ -0,0 +1,211 @@ +/* nuklear - v4.00 - public domain */ + +#include + +/* these defines are both needed for the header + * and source file. So if you split them remember + * to copy them as well. */ +#define NK_INCLUDE_FIXED_TYPES +#define NK_INCLUDE_DEFAULT_ALLOCATOR +#define NK_INCLUDE_STANDARD_VARARGS +#define NK_INCLUDE_STANDARD_IO +// #define NK_INCLUDE_FONT_BAKING +// #define NK_INCLUDE_DEFAULT_FONT +#define NK_IMPLEMENTATION +#define NK_SDL_IMPLEMENTATION +#include "../../nuklear.h" +#include "nuklear_sdl.h" + +#define WINDOW_WIDTH 1200 +#define WINDOW_HEIGHT 800 + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + + +/* =============================================================== + * + * EXAMPLE + * + * ===============================================================*/ +/* This are some code examples to provide a small overview of what can be + * done with this library. To try out an example uncomment the defines */ +// #define INCLUDE_ALL +// #define INCLUDE_STYLE +// #define INCLUDE_CALCULATOR +// #define INCLUDE_OVERVIEW +// #define INCLUDE_NODE_EDITOR + +#ifdef INCLUDE_ALL + #define INCLUDE_STYLE + #define INCLUDE_CALCULATOR + #define INCLUDE_OVERVIEW + #define INCLUDE_NODE_EDITOR +#endif + +#ifdef INCLUDE_STYLE + #include "../style.c" +#endif +#ifdef INCLUDE_CALCULATOR + #include "../calculator.c" +#endif +#ifdef INCLUDE_OVERVIEW + #include "../overview.c" +#endif +#ifdef INCLUDE_NODE_EDITOR + #include "../node_editor.c" +#endif + +int main(void) +{ + SDL_Window* window; + SDL_Renderer* renderer; + struct nk_color background; + struct nk_colorf bg; + int win_width, win_height; + int running = 1; + struct nk_context *ctx; + /* float bg[4]; */ + + /* SDL setup */ + if (SDL_Init(SDL_INIT_VIDEO) == -1) { + printf( "Can't init SDL: %s\n", SDL_GetError( ) ); + return 1; + } + + + window = SDL_CreateWindow("SDL2_gfx demo", + SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, + WINDOW_WIDTH, WINDOW_HEIGHT, + SDL_WINDOW_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI); + + if (!window) { + printf("Can't create window: %s\n", SDL_GetError()); + return 1; + } + /* try VSYNC and ACCELERATED */ + renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_SOFTWARE); + if (!renderer) { + printf("Can't create renderer: %s\n", SDL_GetError()); + return 1; + } + + if (!(ctx = nk_sdl_init(window, renderer, 1, 1))) { + printf("nk_sdl_init() failed!"); + return 1; + } + + /* style.c */ +#ifdef INCLUDE_STYLE + // set_style(ctx, THEME_WHITE); + // set_style(ctx, THEME_RED); + // set_style(ctx, THEME_BLUE); + set_style(ctx, THEME_DARK); +#endif + + background = nk_rgb(28,48,62); + bg = nk_color_cf(background); + while (running) + { + /* Input */ + SDL_Event evt; + nk_input_begin(ctx); + while (SDL_PollEvent(&evt)) { + if (evt.type == SDL_QUIT) goto cleanup; + nk_sdl_handle_event(&evt); + } + nk_input_end(ctx); + + /* GUI */ + { + if (nk_begin(ctx, "Demo", nk_rect(50, 50, 210, 250), + NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE| + NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE)) + { + enum {EASY, HARD}; + static int op = EASY; + static int property = 20; + static float x_scale = 1; + static float y_scale = 1; + + + nk_layout_row_static(ctx, 30, 80, 1); + if (nk_button_label(ctx, "button")) + fprintf(stdout, "button pressed\n"); + nk_layout_row_dynamic(ctx, 30, 2); + if (nk_option_label(ctx, "easy", op == EASY)) op = EASY; + if (nk_option_label(ctx, "hard", op == HARD)) op = HARD; + nk_layout_row_dynamic(ctx, 25, 1); + nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1); + + { + nk_layout_row_dynamic(ctx, 20, 1); + nk_label(ctx, "background:", NK_TEXT_LEFT); + nk_layout_row_dynamic(ctx, 25, 1); + if (nk_combo_begin_color(ctx, nk_rgb_cf(bg), nk_vec2(nk_widget_width(ctx),400))) { + nk_layout_row_dynamic(ctx, 120, 1); + bg = nk_color_picker(ctx, bg, NK_RGBA); + nk_layout_row_dynamic(ctx, 25, 1); + bg.r = nk_propertyf(ctx, "#R:", 0, bg.r, 1.0f, 0.01f,0.005f); + bg.g = nk_propertyf(ctx, "#G:", 0, bg.g, 1.0f, 0.01f,0.005f); + bg.b = nk_propertyf(ctx, "#B:", 0, bg.b, 1.0f, 0.01f,0.005f); + bg.a = nk_propertyf(ctx, "#A:", 0, bg.a, 1.0f, 0.01f,0.005f); + nk_combo_end(ctx); + }} + + // NOTE: scaling looks best at exact integer multiples obviously, + // but 0.5 increments is a good compromise between granularity and looks + float ratio[] = { 0.6f, 0.2f, 0.2f }; + nk_layout_row(ctx, NK_DYNAMIC, 0, 3, ratio); + nk_label(ctx, "GUI scaling:", NK_TEXT_LEFT); + if (nk_button_symbol(ctx, NK_SYMBOL_MINUS)) { + x_scale -= 0.5; + y_scale -= 0.5; + nk_sdl_scale(x_scale, y_scale); + SDL_RenderSetScale(renderer, x_scale, y_scale); + printf("scale = %.2f %.2f\n", x_scale, y_scale); + } + if (nk_button_symbol(ctx, NK_SYMBOL_PLUS)) { + x_scale += 0.5; + y_scale += 0.5; + nk_sdl_scale(x_scale, y_scale); + SDL_RenderSetScale(renderer, x_scale, y_scale); + printf("scale = %.1f %.1f\n", x_scale, y_scale); + } + + } + nk_end(ctx);} + + /* -------------- EXAMPLES ---------------- */ +#ifdef INCLUDE_CALCULATOR + calculator(ctx); +#endif +#ifdef INCLUDE_OVERVIEW + overview(ctx); +#endif +#ifdef INCLUDE_NODE_EDITOR + node_editor(ctx); +#endif + /* ----------------------------------------- */ + + SDL_Delay(50); + /* Draw */ + background = nk_rgb_cf(bg); + nk_sdl_render(&background, SDL_TRUE); + } + +cleanup: + nk_sdl_shutdown(); + SDL_DestroyRenderer(renderer); + SDL_DestroyWindow(window); + SDL_Quit(); + return 0; +} diff --git a/demo/sdl_gfx/nuklear_sdl.h b/demo/sdl_gfx/nuklear_sdl.h new file mode 100644 index 00000000..e7b484bf --- /dev/null +++ b/demo/sdl_gfx/nuklear_sdl.h @@ -0,0 +1,492 @@ +/* + * Nuklear - 4.0 - public domain + * no warranty implied; use at your own risk. + * sdl_gfx backend authored from 2019 by Robert Winkler + */ +/* + * ============================================================== + * + * API + * + * =============================================================== + */ +#ifndef NK_SDL_H +#define NK_SDL_H + +#include + +typedef struct nk_sdl_Font nk_sdl_Font; + +NK_API struct nk_context *nk_sdl_init(SDL_Window* window, SDL_Renderer* renderer, float x_scale, float y_scale); +NK_API void nk_sdl_handle_event(SDL_Event *evt); +NK_API void nk_sdl_scale(float x_scale, float y_scale); +NK_API void nk_sdl_render(struct nk_color* clear, int do_present); +NK_API void nk_sdl_shutdown(void); + +#endif + +/* + * ============================================================== + * + * IMPLEMENTATION + * + * =============================================================== + */ +#ifdef NK_SDL_IMPLEMENTATION + +#include +#include +#include + +#ifndef MAX +#define MAX(a,b) ((a) < (b) ? (b) : (a)) +#endif + +#define NK_SDL_MAX_POINTS 128 + +struct nk_sdl_Font { + int width; + int height; + int handle; +}; + +static struct nk_sdl { + SDL_Window* window; + SDL_Renderer* renderer; + struct nk_context ctx; +} sdl; + +static nk_sdl_Font *sdl_font; +static struct nk_user_font font; +static SDL_Rect sdl_clip_rect; + +static float scale_x; +static float scale_y; + +static void +nk_sdl_scissor(SDL_Renderer* renderer, float x, float y, float w, float h) +{ + sdl_clip_rect.x = x; + sdl_clip_rect.y = y; + sdl_clip_rect.w = w + 1; + sdl_clip_rect.h = h; + SDL_RenderSetClipRect(renderer, &sdl_clip_rect); +} + +static void +nk_sdl_stroke_line(SDL_Renderer* renderer, short x0, short y0, short x1, + short y1, unsigned int line_thickness, struct nk_color col) +{ + thickLineRGBA(renderer, x0, y0, x1, y1, line_thickness, col.r, col.g, col.b, col.a); +} + +static void +nk_sdl_stroke_rect(SDL_Renderer* renderer, short x, short y, unsigned short w, + unsigned short h, unsigned short r, unsigned short line_thickness, struct nk_color col) +{ + /* TODO Add line thickness support */ + if (r == 0) { + rectangleRGBA(renderer, x, y, x + w, y + h, col.r, col.g, col.b, col.a); + } else { + roundedRectangleRGBA(renderer, x, y, x + w, y + h, r, col.r, col.g, col.b, col.a); + } +} + +static void +nk_sdl_fill_rect(SDL_Renderer* renderer, short x, short y, unsigned short w, + unsigned short h, unsigned short r, struct nk_color col) +{ + if (r == 0) { + boxRGBA(renderer, x, y, x + w, y + h, col.r, col.g, col.b, col.a); + } else { + roundedBoxRGBA(renderer, x, y, x + w, y + h, r, col.r, col.g, col.b, col.a); + } +} + +static void +nk_sdl_fill_triangle(SDL_Renderer* renderer, short x0, short y0, short x1, short y1, short x2, short y2, struct nk_color col) +{ + filledTrigonRGBA(renderer, x0, y0, x1, y1, x2, y2, col.r, col.g, col.b, col.a); +} + +static void +nk_sdl_stroke_triangle(SDL_Renderer* renderer, short x0, short y0, short x1, + short y1, short x2, short y2, unsigned short line_thickness, struct nk_color col) +{ + /* TODO Add line_thickness support */ + aatrigonRGBA(renderer, x0, y0, x1, y1, x2, y2, col.r, col.g, col.b, col.a); +} + +static void +nk_sdl_fill_polygon(SDL_Renderer* renderer, const struct nk_vec2i *pnts, int count, struct nk_color col) +{ + Sint16 p_x[NK_SDL_MAX_POINTS]; + Sint16 p_y[NK_SDL_MAX_POINTS]; + int i; + for (i = 0; (i < count) && (i < NK_SDL_MAX_POINTS); ++i) { + p_x[i] = pnts[i].x; + p_y[i] = pnts[i].y; + } + filledPolygonRGBA (renderer, (Sint16 *)p_x, (Sint16 *)p_y, count, col.r, col.g, col.b, col.a); +} + +static void +nk_sdl_stroke_polygon(SDL_Renderer* renderer, const struct nk_vec2i *pnts, int count, + unsigned short line_thickness, struct nk_color col) +{ + /* TODO Add line thickness support */ + Sint16 p_x[NK_SDL_MAX_POINTS]; + Sint16 p_y[NK_SDL_MAX_POINTS]; + int i; + for (i = 0; (i < count) && (i < NK_SDL_MAX_POINTS); ++i) { + p_x[i] = pnts[i].x; + p_y[i] = pnts[i].y; + } + aapolygonRGBA(renderer, (Sint16 *)p_x, (Sint16 *)p_y, count, col.r, col.g, col.b, col.a); +} + +static void +nk_sdl_stroke_polyline(SDL_Renderer* renderer, const struct nk_vec2i *pnts, + int count, unsigned short line_thickness, struct nk_color col) +{ + int x0, y0, x1, y1; + if (count == 1) { + x0 = pnts[0].x; + y0 = pnts[0].y; + x1 = x0; + y1 = y0; + thickLineRGBA(renderer, x0, y0, x1, y1, line_thickness, col.r, col.g, col.b, col.a); + } else if (count >= 2) { + int i; + for (i = 0; i < (count - 1); i++) { + x0 = pnts[i].x; + y0 = pnts[i].y; + x1 = pnts[i + 1].x; + y1 = pnts[i + 1].y; + thickLineRGBA(renderer, x0, y0, x1, y1, line_thickness, col.r, col.g, col.b, col.a); + } + } +} + +static void +nk_sdl_fill_circle(SDL_Renderer* renderer, short x, short y, unsigned short w, + unsigned short h, struct nk_color col) +{ + filledEllipseRGBA(renderer, x + w /2, y + h /2, w / 2, h / 2, col.r, col.g, col.b, col.a); +} + +static void +nk_sdl_stroke_circle(SDL_Renderer* renderer, short x, short y, unsigned short w, + unsigned short h, unsigned short line_thickness, struct nk_color col) +{ + /* TODO Add line_thickness support */ + aaellipseRGBA (renderer, x + w /2, y + h /2, w / 2, h / 2, col.r, col.g, col.b, col.a); +} + +static void +nk_sdl_stroke_curve(SDL_Renderer* renderer, struct nk_vec2i p1, + struct nk_vec2i p2, struct nk_vec2i p3, struct nk_vec2i p4, unsigned int num_segments, + unsigned short line_thickness, struct nk_color col) +{ + unsigned int i_step; + float t_step; + struct nk_vec2i last = p1; + + num_segments = MAX(num_segments, 1); + t_step = 1.0f/(float)num_segments; + for (i_step = 1; i_step <= num_segments; ++i_step) { + float t = t_step * (float)i_step; + float u = 1.0f - t; + float w1 = u*u*u; + float w2 = 3*u*u*t; + float w3 = 3*u*t*t; + float w4 = t * t *t; + float x = w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x; + float y = w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y; + nk_sdl_stroke_line(renderer, last.x, last.y, (short)x, (short)y, line_thickness, col); + last.x = (short)x; last.y = (short)y; + } +} + +static void +nk_sdl_draw_text(SDL_Renderer* renderer, short x, short y, unsigned short w, unsigned short h, + const char *text, int len, nk_sdl_Font *font, struct nk_color cbg, struct nk_color cfg) +{ + int i; + + nk_sdl_fill_rect(renderer, x, y, len * font->width, font->height, 0, cbg); + for (i = 0; i < len; i++) { + characterRGBA(renderer, x, y, text[i], cfg.r, cfg.g, cfg.b, cfg.a); + x += font->width; + } +} + +static void interpolate_color(struct nk_color c1, struct nk_color c2, struct nk_color *result, float fraction) { + float r = c1.r + (c2.r - c1.r) * fraction; + float g = c1.g + (c2.g - c1.g) * fraction; + float b = c1.b + (c2.b - c1.b) * fraction; + float a = c1.a + (c2.a - c1.a) * fraction; + result->r = (nk_byte)NK_CLAMP(0, r, 255); + result->g = (nk_byte)NK_CLAMP(0, g, 255); + result->b = (nk_byte)NK_CLAMP(0, b, 255); + result->a = (nk_byte)NK_CLAMP(0, a, 255); +} + +static void +nk_sdl_fill_rect_multi_color(SDL_Renderer* renderer, short x, short y, unsigned short w, unsigned short h, + struct nk_color left, struct nk_color top, struct nk_color right, struct nk_color bottom) +{ + struct nk_color X1, X2, Y; + float fraction_x, fraction_y; + int i,j; + + for (j = 0; j < h; j++) { + fraction_y = ((float)j) / h; + for (i = 0; i < w; i++) { + fraction_x = ((float)i) / w; + interpolate_color(left, top, &X1, fraction_x); + interpolate_color(right, bottom, &X2, fraction_x); + interpolate_color(X1, X2, &Y, fraction_y); + pixelRGBA(renderer, x + i, y + j, Y.r, Y.g, Y.b, Y.a); + } + } +} + + +static void +nk_sdl_clear(SDL_Renderer* renderer, struct nk_color col) +{ + int w, h; + // could set clip rect here, but lets let user + // decide + SDL_GetWindowSize(sdl.window, &w, &h); + nk_sdl_fill_rect(renderer, 0, 0, w, h, 0, col); +} + + +NK_API void +nk_sdl_render(struct nk_color* clear, int do_present) +{ + const struct nk_command *cmd; + + SDL_Renderer* ren = sdl.renderer; + if (clear) + nk_sdl_clear(ren, *clear); + + nk_foreach(cmd, &sdl.ctx) + { + switch (cmd->type) { + case NK_COMMAND_NOP: break; + case NK_COMMAND_SCISSOR: { + const struct nk_command_scissor *s =(const struct nk_command_scissor*)cmd; + nk_sdl_scissor(ren, s->x, s->y, s->w, s->h); + } break; + case NK_COMMAND_LINE: { + const struct nk_command_line *l = (const struct nk_command_line *)cmd; + nk_sdl_stroke_line(ren, l->begin.x, l->begin.y, l->end.x, + l->end.y, l->line_thickness, l->color); + } break; + case NK_COMMAND_RECT: { + const struct nk_command_rect *r = (const struct nk_command_rect *)cmd; + nk_sdl_stroke_rect(ren, r->x, r->y, r->w, r->h, + (unsigned short)r->rounding, r->line_thickness, r->color); + } break; + case NK_COMMAND_RECT_FILLED: { + const struct nk_command_rect_filled *r = (const struct nk_command_rect_filled *)cmd; + nk_sdl_fill_rect(ren, r->x, r->y, r->w, r->h, + (unsigned short)r->rounding, r->color); + } break; + case NK_COMMAND_CIRCLE: { + const struct nk_command_circle *c = (const struct nk_command_circle *)cmd; + nk_sdl_stroke_circle(ren, c->x, c->y, c->w, c->h, c->line_thickness, c->color); + } break; + case NK_COMMAND_CIRCLE_FILLED: { + const struct nk_command_circle_filled *c = (const struct nk_command_circle_filled *)cmd; + nk_sdl_fill_circle(ren, c->x, c->y, c->w, c->h, c->color); + } break; + case NK_COMMAND_TRIANGLE: { + const struct nk_command_triangle*t = (const struct nk_command_triangle*)cmd; + nk_sdl_stroke_triangle(ren, t->a.x, t->a.y, t->b.x, t->b.y, + t->c.x, t->c.y, t->line_thickness, t->color); + } break; + case NK_COMMAND_TRIANGLE_FILLED: { + const struct nk_command_triangle_filled *t = (const struct nk_command_triangle_filled *)cmd; + nk_sdl_fill_triangle(ren, t->a.x, t->a.y, t->b.x, t->b.y, t->c.x, t->c.y, t->color); + } break; + case NK_COMMAND_POLYGON: { + const struct nk_command_polygon *p =(const struct nk_command_polygon*)cmd; + nk_sdl_stroke_polygon(ren, p->points, p->point_count, p->line_thickness,p->color); + } break; + case NK_COMMAND_POLYGON_FILLED: { + const struct nk_command_polygon_filled *p = (const struct nk_command_polygon_filled *)cmd; + nk_sdl_fill_polygon(ren, p->points, p->point_count, p->color); + } break; + case NK_COMMAND_POLYLINE: { + const struct nk_command_polyline *p = (const struct nk_command_polyline *)cmd; + nk_sdl_stroke_polyline(ren, p->points, p->point_count, p->line_thickness, p->color); + } break; + case NK_COMMAND_TEXT: { + const struct nk_command_text *t = (const struct nk_command_text*)cmd; + nk_sdl_draw_text(ren, t->x, t->y, t->w, t->h, + (const char*)t->string, t->length, + (nk_sdl_Font*)t->font->userdata.ptr, + t->background, t->foreground); + } break; + case NK_COMMAND_CURVE: { + const struct nk_command_curve *q = (const struct nk_command_curve *)cmd; + nk_sdl_stroke_curve(ren, q->begin, q->ctrl[0], q->ctrl[1], + q->end, 22, q->line_thickness, q->color); + } break; + case NK_COMMAND_RECT_MULTI_COLOR: { + const struct nk_command_rect_multi_color *r = (const struct nk_command_rect_multi_color *)cmd; + nk_sdl_fill_rect_multi_color(ren, r->x, r->y, r->w, r->h, r->left, r->top, r->right, r->bottom); + } break; + case NK_COMMAND_IMAGE: + case NK_COMMAND_ARC: + case NK_COMMAND_ARC_FILLED: + default: break; + } + } + + if (do_present) + SDL_RenderPresent(ren); + + nk_clear(&sdl.ctx); +} + +static void +nk_sdl_clipbard_paste(nk_handle usr, struct nk_text_edit *edit) +{ + const char *text = SDL_GetClipboardText(); + if (text) nk_textedit_paste(edit, text, nk_strlen(text)); + (void)usr; +} + +static void +nk_sdl_clipbard_copy(nk_handle usr, const char *text, int len) +{ + char *str = 0; + (void)usr; + if (!len) return; + str = (char*)malloc((size_t)len+1); + if (!str) return; + memcpy(str, text, (size_t)len); + str[len] = '\0'; + SDL_SetClipboardText(str); + free(str); +} + +static float +nk_sdl_get_text_width(nk_handle handle, float height, const char *text, int len) +{ + return len * sdl_font->width; +} + +NK_API void +nk_sdl_scale(float x_scale, float y_scale) +{ + scale_x = x_scale; + scale_y = y_scale; +} + +NK_API struct nk_context* +nk_sdl_init(SDL_Window* window, SDL_Renderer* renderer, float x_scale, float y_scale) +{ + sdl_font = (nk_sdl_Font*)calloc(1, sizeof(nk_sdl_Font)); + sdl_font->width = 8; /* Default in the SDL_gfx library */ + sdl_font->height = 8; /* Default in the SDL_gfx library */ + if (!sdl_font) + return NULL; + + font.userdata = nk_handle_ptr(sdl_font); + font.height = (float)sdl_font->height; + font.width = nk_sdl_get_text_width; + + scale_x = x_scale; + scale_y = y_scale; + + sdl.window = window; + sdl.renderer = renderer; + nk_init_default(&sdl.ctx, &font); + sdl.ctx.clip.copy = nk_sdl_clipbard_copy; + sdl.ctx.clip.paste = nk_sdl_clipbard_paste; + sdl.ctx.clip.userdata = nk_handle_ptr(0); + return &sdl.ctx; +} + +NK_API void +nk_sdl_handle_event(SDL_Event *evt) +{ + struct nk_context *ctx = &sdl.ctx; + if (evt->type == SDL_KEYUP || evt->type == SDL_KEYDOWN) { + /* key events */ + int down = evt->type == SDL_KEYDOWN; + const Uint8* state = SDL_GetKeyboardState(0); + SDL_Keycode sym = evt->key.keysym.sym; + if (sym == SDLK_RSHIFT || sym == SDLK_LSHIFT) + nk_input_key(ctx, NK_KEY_SHIFT, down); + else if (sym == SDLK_DELETE) + nk_input_key(ctx, NK_KEY_DEL, down); + else if (sym == SDLK_RETURN) + nk_input_key(ctx, NK_KEY_ENTER, down); + else if (sym == SDLK_TAB) + nk_input_key(ctx, NK_KEY_TAB, down); + else if (sym == SDLK_BACKSPACE) + nk_input_key(ctx, NK_KEY_BACKSPACE, down); + else if (sym == SDLK_HOME) + nk_input_key(ctx, NK_KEY_TEXT_START, down); + else if (sym == SDLK_END) + nk_input_key(ctx, NK_KEY_TEXT_END, down); + else if (sym == SDLK_z) + nk_input_key(ctx, NK_KEY_TEXT_UNDO, down && state[SDL_SCANCODE_LCTRL]); + else if (sym == SDLK_r) + nk_input_key(ctx, NK_KEY_TEXT_REDO, down && state[SDL_SCANCODE_LCTRL]); + else if (sym == SDLK_c) + nk_input_key(ctx, NK_KEY_COPY, down && state[SDL_SCANCODE_LCTRL]); + else if (sym == SDLK_v) + nk_input_key(ctx, NK_KEY_PASTE, down && state[SDL_SCANCODE_LCTRL]); + else if (sym == SDLK_x) + nk_input_key(ctx, NK_KEY_CUT, down && state[SDL_SCANCODE_LCTRL]); + else if (sym == SDLK_b) + nk_input_key(ctx, NK_KEY_TEXT_LINE_START, down && state[SDL_SCANCODE_LCTRL]); + else if (sym == SDLK_e) + nk_input_key(ctx, NK_KEY_TEXT_LINE_END, down && state[SDL_SCANCODE_LCTRL]); + else if (sym == SDLK_LEFT) { + if (state[KMOD_LCTRL]) + nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, down); + else nk_input_key(ctx, NK_KEY_LEFT, down); + } else if (sym == SDLK_RIGHT) { + if (state[KMOD_LCTRL]) + nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, down); + else nk_input_key(ctx, NK_KEY_RIGHT, down); + } + } else if (evt->type == SDL_MOUSEBUTTONDOWN || evt->type == SDL_MOUSEBUTTONUP) { + /* mouse button */ + int down = evt->type == SDL_MOUSEBUTTONDOWN; + const int x = evt->button.x/scale_x, y = evt->button.y/scale_y; + if (evt->button.button == SDL_BUTTON_LEFT) + nk_input_button(ctx, NK_BUTTON_LEFT, x, y, down); + if (evt->button.button == SDL_BUTTON_MIDDLE) + nk_input_button(ctx, NK_BUTTON_MIDDLE, x, y, down); + if (evt->button.button == SDL_BUTTON_RIGHT) + nk_input_button(ctx, NK_BUTTON_RIGHT, x, y, down); + } else if (evt->type == SDL_MOUSEWHEEL) { + nk_input_scroll(ctx,nk_vec2((float)evt->wheel.x,(float)evt->wheel.y)); + } else if (evt->type == SDL_MOUSEMOTION) { + nk_input_motion(ctx, evt->motion.x/scale_x, evt->motion.y/scale_y); + } else if (evt->type == SDL_TEXTINPUT) { + // text input + nk_glyph glyph; + memcpy(glyph, evt->text.text, NK_UTF_SIZE); + nk_input_glyph(ctx, glyph); + } +} + +NK_API void +nk_sdl_shutdown(void) +{ + free(sdl_font); + nk_free(&sdl.ctx); +} + +#endif diff --git a/demo/sdl_opengl3/Makefile b/demo/sdl_opengl3/Makefile index c6fcb451..128e71ad 100644 --- a/demo/sdl_opengl3/Makefile +++ b/demo/sdl_opengl3/Makefile @@ -2,7 +2,7 @@ BIN = demo # Flags -CFLAGS += -std=c99 -pedantic -O2 +CFLAGS += -std=c99 -pedantic -O0 -g SRC = main.c OBJ = $(SRC:.c=.o) diff --git a/demo/sdl_opengl3/main.c b/demo/sdl_opengl3/main.c index 9959d8ac..f021750e 100644 --- a/demo/sdl_opengl3/main.c +++ b/demo/sdl_opengl3/main.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include @@ -39,10 +38,10 @@ * ===============================================================*/ /* This are some code examples to provide a small overview of what can be * done with this library. To try out an example uncomment the defines */ -/*#define INCLUDE_ALL */ -/*#define INCLUDE_STYLE */ +// #define INCLUDE_ALL +//#define INCLUDE_STYLE /*#define INCLUDE_CALCULATOR */ -/*#define INCLUDE_OVERVIEW */ +#define INCLUDE_OVERVIEW /*#define INCLUDE_NODE_EDITOR */ #ifdef INCLUDE_ALL @@ -107,22 +106,25 @@ int main(void) ctx = nk_sdl_init(win); /* Load Fonts: if none of these are loaded a default font will be used */ /* Load Cursor: if you uncomment cursor loading please hide the cursor */ - {struct nk_font_atlas *atlas; - nk_sdl_font_stash_begin(&atlas); - /*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/ - /*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 16, 0);*/ - /*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/ - /*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/ - /*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/ - /*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/ - nk_sdl_font_stash_end(); - /*nk_style_load_all_cursors(ctx, atlas->cursors);*/ - /*nk_style_set_font(ctx, &roboto->handle);*/} + { + struct nk_font_atlas *atlas; + nk_sdl_font_stash_begin(&atlas); + /*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/ + //struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 24, 0); + /*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/ + /*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/ + /*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/ + /*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/ + nk_sdl_font_stash_end(); + //nk_style_load_all_cursors(ctx, atlas->cursors); + //nk_style_set_font(ctx, &roboto->handle); + //nk_init_default(ctx, &roboto->handle); + } /* style.c */ #ifdef INCLUDE_STYLE /*set_style(ctx, THEME_WHITE);*/ - /*set_style(ctx, THEME_RED);*/ + set_style(ctx, THEME_RED); /*set_style(ctx, THEME_BLUE);*/ /*set_style(ctx, THEME_DARK);*/ #endif