/* * draw * * Windowed graphical drawing tool. * Simple painting application. * * This is also the playground for the work-in-progress * ToaruToolKit GUI toolkit. */ #include #include "lib/yutani.h" #include "gui/ttk/ttk.h" #include "lib/list.h" /* XXX TOOLKIT FUNCTIONS */ gfx_context_t * ctx; yutani_window_t * wina; yutani_t * yctx; /* Active TTK window XXX */ static yutani_window_t * ttk_window = NULL; /* TTK Window's objects XXX */ static list_t * ttk_objects = NULL; #define TTK_BUTTON_TYPE 0x00000001 #define TTK_RAW_SURFACE_TYPE 0x00000002 #define TTK_BUTTON_STATE_NORMAL 0 #define TTK_BUTTON_STATE_DOWN 1 cairo_surface_t * internal_surface; /* * Core TTK GUI object */ typedef struct { uint32_t type; /* Object type indicator (for introspection) */ int32_t x; /* Coordinates */ int32_t y; int32_t width; /* Sizes */ int32_t height; void (*render_func)(void *, cairo_t * cr); /* (Internal) function to render the object */ void (*click_callback)(void *, struct yutani_msg_window_mouse_event *); /* Callback function for clicking */ } ttk_object; /* TTK Button */ typedef struct { ttk_object _super; /* Parent type (Object -> Button) */ char * title; /* Button text */ uint32_t fill_color; /* Fill color */ uint32_t fore_color; /* Text color */ int button_state; } ttk_button; typedef struct { ttk_object _super; gfx_context_t * surface; } ttk_raw_surface; void ttk_render_button(void * s, cairo_t * cr) { ttk_object * self = (ttk_object *)s; if (((ttk_button *)self)->button_state == TTK_BUTTON_STATE_DOWN) { _ttk_draw_button_select(cr, self->x, self->y, self->width, self->height, ((ttk_button *)self)->title); } else { _ttk_draw_button(cr, self->x, self->y, self->width, self->height, ((ttk_button *)self)->title); } #if 0 /* Fill the button */ for (uint16_t y = self->y + 1; y < self->y + self->height; y++) { draw_line(ctx, self->x, self->x + self->width, y, y, ((ttk_button *)self)->fill_color); } /* Then draw the border */ uint32_t border_color = rgb(0,0,0); draw_line(ctx, self->x, self->x + self->width, self->y, self->y, border_color); draw_line(ctx, self->x, self->x, self->y, self->y + self->height, border_color); draw_line(ctx, self->x + self->width, self->x + self->width, self->y, self->y + self->height, border_color); draw_line(ctx, self->x, self->x + self->width, self->y + self->height, self->y + self->height, border_color); /* button-specific stuff */ uint32_t w = draw_string_width(((ttk_button * )self)->title); uint16_t offset = (self->width - w) / 2; draw_string(ctx, self->x + offset, self->y + self->height - 3, ((ttk_button *)self)->fore_color, ((ttk_button * )self)->title); #endif } void ttk_render_raw_surface(void * s, cairo_t * cr) { ttk_object * self = (ttk_object *)s; gfx_context_t * surface = ((ttk_raw_surface *)self)->surface; { cairo_save(cr); int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, surface->width); cairo_surface_t * internal_surface = cairo_image_surface_create_for_data(surface->backbuffer, CAIRO_FORMAT_ARGB32, surface->width, surface->height, stride); cairo_set_source_surface(cr, internal_surface, self->x, self->y); cairo_paint(cr); cairo_surface_destroy(internal_surface); cairo_restore(cr); } } ttk_button * ttk_button_new(char * title, void (*callback)(void *, struct yutani_msg_window_mouse_event *)) { ttk_button * out = malloc(sizeof(ttk_button)); out->title = title; out->fill_color = rgb(100,100,100); out->button_state = TTK_BUTTON_STATE_NORMAL; /* Standard */ ttk_object * obj = (ttk_object *)out; obj->click_callback = callback; obj->render_func = ttk_render_button; obj->type = TTK_BUTTON_TYPE; obj->x = 0; obj->y = 0; obj->width = 20; obj->height = 20; list_insert(ttk_objects, obj); return out; } static cairo_surface_t * close_button_sprite; void ttk_render_decor_button_close(void * s, cairo_t * cr) { cairo_save(cr); cairo_set_source_rgb(cr, 244.0, 244.0, 244.0); double x = ((ttk_object *)s)->x; double y = ((ttk_object *)s)->y; cairo_set_source_surface(cr, close_button_sprite, x + 1, y + 1); cairo_paint(cr); cairo_restore(cr); } ttk_button * ttk_decor_button_close(void (*callback)(void *, struct yutani_msg_window_mouse_event *)) { if (!close_button_sprite) { close_button_sprite = cairo_image_surface_create_from_png("/usr/share/ttk/common/button-close.png"); /* TTK_PATH ? something less dumb? */ } ttk_button * out = ttk_button_new("Close" /* For future tooltips */, callback); ((ttk_object *)out)->render_func = ttk_render_decor_button_close; ((ttk_object *)out)->width = 10; ((ttk_object *)out)->height = 10; return out; } ttk_raw_surface * ttk_raw_surface_new(int width, int height) { ttk_raw_surface * out = malloc(sizeof(ttk_raw_surface)); ttk_object * obj = (ttk_object *)out; out->surface = malloc(sizeof(gfx_context_t)); out->surface->width = width; out->surface->height = height; out->surface->depth = 32; out->surface->buffer = malloc(sizeof(uint32_t) * width * height); out->surface->backbuffer = out->surface->buffer; draw_fill(out->surface, rgb(255,255,255)); obj->width = width; obj->height = height; obj->x = 10; obj->y = 10; obj->click_callback = NULL; obj->type = TTK_RAW_SURFACE_TYPE; obj->render_func = ttk_render_raw_surface; list_insert(ttk_objects, obj); return out; } /* * Reposition a TTK object */ void ttk_position(ttk_object * obj, int x, int y, int width, int height) { obj->x = x; obj->y = y; obj->width = width; obj->height = height; } int ttk_within(ttk_object * obj, struct yutani_msg_window_mouse_event * evt) { if (evt->new_x >= obj->x && evt->new_x < obj->x + obj->width && evt->new_y >= obj->y && evt->new_y < obj->y + obj->height) { return 1; } return 0; } void ttk_check_click(struct yutani_msg_window_mouse_event * evt) { if (evt->command == YUTANI_MOUSE_EVENT_CLICK) { foreach(node, ttk_objects) { ttk_object * obj = (ttk_object *)node->value; if (ttk_within(obj, evt)) { if (obj->click_callback) { obj->click_callback(obj, evt); } } } } else if (evt->command == YUTANI_MOUSE_EVENT_DOWN) { fprintf(stderr, "Mouse down: %d, %d\n", evt->new_x, evt->new_y); if (evt->new_y < decor_top_height && evt->new_x < (wina->width - 28)) { yutani_window_drag_start(yctx, wina); } } } void ttk_render() { /* XXX */ ttk_window_t _window; ttk_window_t * window = &_window; window->core_context = ctx; window->core_window = ttk_window; window->width = ctx->width; // - decor_width(); window->height = ctx->height; //- decor_height(); window->off_x = 0; //decor_left_width; window->off_y = 0; //decor_top_height; window->title = "Draw!"; draw_fill(ctx, rgb(TTK_BACKGROUND_DEFAULT)); ttk_redraw_borders(window); { int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, window->core_window->width); cairo_surface_t * core_surface = cairo_image_surface_create_for_data(window->core_context->backbuffer, CAIRO_FORMAT_ARGB32, window->core_window->width, window->core_window->height, stride); cairo_t * cr_main = cairo_create(core_surface); /* TODO move this surface to a ttk_frame_t or something; GUIs man, go look at some Qt or GTK APIs! */ cairo_surface_t * internal_surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, window->width, window->height); cairo_t * cr = cairo_create(internal_surface); foreach(node, ttk_objects) { ttk_object * obj = (ttk_object *)node->value; if (obj->render_func) { obj->render_func(obj, cr); } } /* Paint the window's internal surface onto the backbuffer */ cairo_set_source_surface(cr_main, internal_surface, (double)window->off_x, (double)window->off_y); cairo_paint(cr_main); cairo_surface_flush(internal_surface); cairo_destroy(cr); cairo_surface_destroy(internal_surface); /* In theory, we don't actually want to destroy much of any of this; maybe the cairo_t */ cairo_surface_flush(core_surface); cairo_destroy(cr_main); cairo_surface_destroy(core_surface); } flip(window->core_context); yutani_flip(yctx, wina); } void setup_ttk(yutani_window_t * window) { ttk_window = window; ttk_objects = list_create(); init_shmemfonts(); } uint32_t drawing_color = 0; uint16_t quit = 0; ttk_button * button_red; ttk_button * button_green; ttk_button * button_blue; ttk_button * close_button; ttk_button * button_thick; ttk_button * button_thin; ttk_raw_surface * drawing_surface; int thick = 0; static void set_color(void * button, struct yutani_msg_window_mouse_event * event) { ttk_button * self = (ttk_button *)button; if (button_blue != self) button_blue->button_state = TTK_BUTTON_STATE_NORMAL; if (button_red != self) button_red->button_state = TTK_BUTTON_STATE_NORMAL; if (button_green != self) button_green->button_state = TTK_BUTTON_STATE_NORMAL; self->button_state = TTK_BUTTON_STATE_DOWN; drawing_color = self->fill_color; ttk_render(); } static void quit_app(void * button, struct yutani_msg_window_mouse_event * event) { quit = 1; } static void set_thickness_thick(void * button, struct yutani_msg_window_mouse_event * event) { #if 0 button_thick->fill_color = rgb(127,127,127); button_thick->fore_color = rgb(255,255,255); button_thin->fill_color = rgb(40,40,40); button_thin->fore_color = rgb(255,255,255); #endif button_thick->button_state = TTK_BUTTON_STATE_DOWN; button_thin->button_state = TTK_BUTTON_STATE_NORMAL; thick = 1; ttk_render(); } static void set_thickness_thin(void * button, struct yutani_msg_window_mouse_event * event) { #if 0 button_thin->fill_color = rgb(127,127,127); button_thin->fore_color = rgb(255,255,255); button_thick->fill_color = rgb(40,40,40); button_thick->fore_color = rgb(255,255,255); #endif button_thin->button_state = TTK_BUTTON_STATE_DOWN; button_thick->button_state = TTK_BUTTON_STATE_NORMAL; thick = 0; ttk_render(); } static void resize_finish(int width, int height) { yutani_window_resize_accept(yctx, wina, width, height); reinit_graphics_yutani(ctx, wina); ((ttk_object *)close_button)->x = wina->width - 28; ttk_render(); yutani_window_resize_done(yctx, wina); yutani_flip(yctx, wina); } static void resize_button(void * button, struct yutani_msg_window_mouse_event * event) { yutani_window_resize(yctx, wina, 600, 600); yutani_msg_t * m = yutani_wait_for(yctx, YUTANI_MSG_RESIZE_OFFER); struct yutani_msg_window_resize * wr = (void*)m->data; resize_finish(wr->width, wr->height); free(m); } void keep_drawing(struct yutani_msg_window_mouse_event * mouse) { double thickness = thick ? 2.0 : 0.5;; int old_x = mouse->old_x - ((ttk_object *)drawing_surface)->x; int old_y = mouse->old_y - ((ttk_object *)drawing_surface)->y; int new_x = mouse->new_x - ((ttk_object *)drawing_surface)->x; int new_y = mouse->new_y - ((ttk_object *)drawing_surface)->y; { cairo_t * cr = cairo_create(internal_surface); cairo_set_source_rgb(cr, _RED(drawing_color) / 255.0, _GRE(drawing_color) / 255.0, _BLU(drawing_color) / 255.0); cairo_set_line_width(cr, thickness); cairo_move_to(cr, old_x, old_y); cairo_line_to(cr, new_x, new_y); cairo_stroke(cr); cairo_destroy(cr); } { int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, wina->width); cairo_surface_t * core_surface = cairo_image_surface_create_for_data(ctx->backbuffer, CAIRO_FORMAT_ARGB32, wina->width, wina->height, stride); cairo_t * cr = cairo_create(core_surface); cairo_rectangle(cr, ((ttk_object*)drawing_surface)->x, ((ttk_object*)drawing_surface)->y, ((ttk_object*)drawing_surface)->width, ((ttk_object*)drawing_surface)->height); cairo_clip(cr); cairo_set_source_rgb(cr, _RED(drawing_color) / 255.0, _GRE(drawing_color) / 255.0, _BLU(drawing_color) / 255.0); cairo_set_line_width(cr, thickness); cairo_move_to(cr, old_x + ((ttk_object*)drawing_surface)->x, old_y + ((ttk_object*)drawing_surface)->y); cairo_line_to(cr, new_x + ((ttk_object*)drawing_surface)->x, new_y + ((ttk_object*)drawing_surface)->y); cairo_stroke(cr); cairo_destroy(cr); cairo_surface_destroy(core_surface); flip(ctx); } } int main (int argc, char ** argv) { int left = 30; int top = 30; int width = 450; int height = 450; yctx = yutani_init(); /* Do something with a window */ wina = yutani_window_create(yctx, width, height); ctx = init_graphics_yutani_double_buffer(wina); draw_fill(ctx, rgba(0,0,0,0)); init_decorations(); yutani_window_advertise_icon(yctx, wina, "Draw!", "applications-painting"); setup_ttk(wina); close_button = ttk_decor_button_close(quit_app); ((ttk_object *)close_button)->x = width - 28; ((ttk_object *)close_button)->y = 16; button_blue = ttk_button_new("Blue", set_color); ttk_position((ttk_object *)button_blue, decor_left_width + 3, decor_top_height + 3, 100, 20); button_blue->fill_color = rgb(0,0,255); button_blue->fore_color = rgb(255,255,255); button_green = ttk_button_new("Green", set_color); ttk_position((ttk_object *)button_green, decor_left_width + 106, decor_top_height + 3, 100, 20); button_green->fill_color = rgb(0,255,0); button_green->fore_color = rgb(0,0,0); button_red = ttk_button_new("Red", set_color); ttk_position((ttk_object *)button_red, decor_left_width + 209, decor_top_height + 3, 100, 20); button_red->fill_color = rgb(255,0,0); button_red->fore_color = rgb(255,255,255); button_thick = ttk_button_new("Thick", set_thickness_thick); ttk_position((ttk_object *)button_thick, decor_left_width + 312, decor_top_height + 3, 50, 20); button_thick->fill_color = rgb(40,40,40); button_thick->fore_color = rgb(255,255,255); button_thin = ttk_button_new("Thin", set_thickness_thin); ttk_position((ttk_object *)button_thin, decor_left_width + 362, decor_top_height + 3, 50, 20); button_thin->fill_color = rgb(127,127,127); button_thin->fore_color = rgb(255,255,255); ttk_button * button_resize = ttk_button_new("*", resize_button); ttk_position((ttk_object *)button_resize, decor_left_width + 410, decor_top_height + 3, 20, 20); button_resize->fill_color = rgb(127,127,127); button_resize->fore_color = rgb(255,255,255); drawing_surface = ttk_raw_surface_new(width - 30, height - 70); ((ttk_object *)drawing_surface)->y = 60; int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, drawing_surface->surface->width); internal_surface = cairo_image_surface_create_for_data(drawing_surface->surface->backbuffer, CAIRO_FORMAT_ARGB32, drawing_surface->surface->width, drawing_surface->surface->height, stride); drawing_color = rgb(255,0,0); ttk_render(); while (!quit) { yutani_msg_t * m = yutani_poll(yctx); if (m) { switch (m->type) { case YUTANI_MSG_KEY_EVENT: { struct yutani_msg_key_event * ke = (void*)m->data; if (ke->event.action == KEY_ACTION_DOWN && ke->event.keycode == 'q') { quit = 1; break; } } break; case YUTANI_MSG_WINDOW_FOCUS_CHANGE: { struct yutani_msg_window_focus_change * wf = (void*)m->data; yutani_window_t * win = hashmap_get(yctx->windows, (void*)wf->wid); if (win) { win->focused = wf->focused; ttk_render(); } } break; case YUTANI_MSG_WINDOW_MOUSE_EVENT: { struct yutani_msg_window_mouse_event * me = (void*)m->data; if (me->command == YUTANI_MOUSE_EVENT_DRAG && me->buttons & YUTANI_MOUSE_BUTTON_LEFT) { keep_drawing(me); yutani_flip(yctx, wina); } else if (me->command == YUTANI_MOUSE_EVENT_RAISE) { ttk_render(); } else { ttk_check_click(me); } } break; case YUTANI_MSG_RESIZE_OFFER: { struct yutani_msg_window_resize * wr = (void*)m->data; resize_finish(wr->width, wr->height); } break; case YUTANI_MSG_SESSION_END: quit = 1; break; default: break; } free(m); } } yutani_close(yctx, wina); return 0; }