250 lines
7.1 KiB
C
250 lines
7.1 KiB
C
/*
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*
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* Toolkit Demo and Development Application
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*
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*/
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#include <stdlib.h>
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#include <assert.h>
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#include <math.h>
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#include <cairo.h>
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#include "lib/window.h"
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#include "lib/graphics.h"
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#include "lib/decorations.h"
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#include "lib/shmemfonts.h"
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/* TTK {{{ */
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void cairo_rounded_rectangle(cairo_t * cr, double x, double y, double width, double height, double radius) {
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double degrees = M_PI / 180.0;
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cairo_new_sub_path(cr);
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cairo_arc (cr, x + width - radius, y + radius, radius, -90 * degrees, 0 * degrees);
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cairo_arc (cr, x + width - radius, y + height - radius, radius, 0 * degrees, 90 * degrees);
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cairo_arc (cr, x + radius, y + height - radius, radius, 90 * degrees, 180 * degrees);
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cairo_arc (cr, x + radius, y + radius, radius, 180 * degrees, 270 * degrees);
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cairo_close_path(cr);
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}
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typedef struct ttk_window {
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window_t * core_window;
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gfx_context_t * core_context;
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char * title;
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cairo_surface_t * cairo_surface;
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uint16_t width; /* internal space */
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uint16_t height;
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uint16_t off_x; /* decor_left_width */
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uint16_t off_y; /* decor_top_height */
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} ttk_window_t;
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#define TTK_BACKGROUND_DEFAULT 204,204,204
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#define TTK_DEFAULT_X 300
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#define TTK_DEFAULT_Y 300
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list_t * ttk_window_list;
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void ttk_redraw_borders(ttk_window_t * window) {
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render_decorations(window->core_window, window->core_context, window->title);
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}
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void _ttk_draw_button(cairo_t * cr, int x, int y, int width, int height) {
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cairo_save(cr);
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cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
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cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
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cairo_rounded_rectangle(cr, 2 + x, 2 + y, width - 4, height - 4, 2.0);
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cairo_set_source_rgba(cr, 44.0/255.0, 71.0/255.0, 91.0/255.0, 29.0/255.0);
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cairo_set_line_width(cr, 4);
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cairo_stroke(cr);
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cairo_rounded_rectangle(cr, 2 + x, 2 + y, width - 4, height - 4, 2.0);
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cairo_set_source_rgba(cr, 158.0/255.0, 169.0/255.0, 177.0/255.0, 1.0);
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cairo_set_line_width(cr, 2);
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cairo_stroke(cr);
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{
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cairo_pattern_t * pat = cairo_pattern_create_linear(2 + x, 2 + y, 2 + x, 2 + y + height - 4);
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cairo_pattern_add_color_stop_rgba(pat, 0, 1, 1, 1, 1);
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cairo_pattern_add_color_stop_rgba(pat, 1, 241.0/255.0, 241.0/255.0, 244.0/255.0, 1);
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cairo_rounded_rectangle(cr, 2 + x, 2 + y, width - 4, height - 4, 2.0);
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cairo_set_source(cr, pat);
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cairo_fill(cr);
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cairo_pattern_destroy(pat);
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}
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{
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cairo_pattern_t * pat = cairo_pattern_create_linear(3 + x, 3 + y, 3 + x, 3 + y + height - 4);
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cairo_pattern_add_color_stop_rgba(pat, 0, 252.0/255.0, 252.0/255.0, 254.0/255.0, 1);
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cairo_pattern_add_color_stop_rgba(pat, 1, 223.0/255.0, 225.0/255.0, 230.0/255.0, 1);
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cairo_rounded_rectangle(cr, 3 + x, 3 + y, width - 5, height - 5, 2.0);
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cairo_set_source(cr, pat);
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cairo_fill(cr);
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cairo_pattern_destroy(pat);
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}
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cairo_restore(cr);
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}
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void ttk_window_draw(ttk_window_t * window) {
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draw_fill(window->core_context, rgb(TTK_BACKGROUND_DEFAULT));
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ttk_redraw_borders(window);
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/* TODO actual drawing */
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{
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/* TODO move these surfaces into the ttk_window_t object */
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int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, window->core_window->width);
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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);
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cairo_t * cr_main = cairo_create(core_surface);
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/* TODO move this surface to a ttk_frame_t or something; GUIs man, go look at some Qt or GTK APIs! */
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cairo_surface_t * internal_surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, window->width, window->height);
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cairo_t * cr = cairo_create(internal_surface);
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_ttk_draw_button(cr, 4, 4, window->width - 8, 40);
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_ttk_draw_button(cr, 4, 48 + 4, (window->width / 2) - 8, 40);
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_ttk_draw_button(cr, 4 + (window->width / 2), 48 + 4, (window->width / 2) - 8, 40);
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_ttk_draw_button(cr, 4, 48 + 48 + 4, window->width - 8, window->height - 48 - 48 - 8);
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/* Paint the window's internal surface onto the backbuffer */
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cairo_set_source_surface(cr_main, internal_surface, (double)window->off_x, (double)window->off_y);
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cairo_paint(cr_main);
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cairo_surface_flush(internal_surface);
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cairo_destroy(cr);
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cairo_surface_destroy(internal_surface);
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/* In theory, we don't actually want to destroy much of any of this; maybe the cairo_t */
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cairo_surface_flush(core_surface);
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cairo_destroy(cr_main);
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cairo_surface_destroy(core_surface);
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}
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flip(window->core_context);
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}
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void ttk_resize_callback(window_t * window) {
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ttk_window_t * window_ttk = NULL;
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foreach(node, ttk_window_list) {
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ttk_window_t * tmp = (ttk_window_t *)node->value;
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if (window->wid == tmp->core_window->wid) {
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window_ttk = tmp;
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break;
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}
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}
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if (!window_ttk) {
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fprintf(stderr, "[ttk] received window callback for a window not registered with TTK, ignoring.\n");
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}
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/* Update window size */
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window_ttk->width = window->width - decor_width();
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window_ttk->height = window->height - decor_height();
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/* Reinitialize graphics context */
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reinit_graphics_window(window_ttk->core_context, window_ttk->core_window);
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ttk_window_draw(window_ttk);
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}
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void ttk_focus_callback(window_t * window) {
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ttk_window_t * window_ttk = NULL;
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foreach(node, ttk_window_list) {
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ttk_window_t * tmp = (ttk_window_t *)node->value;
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if (window->wid == tmp->core_window->wid) {
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window_ttk = tmp;
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break;
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}
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}
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if (!window_ttk) {
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fprintf(stderr, "[ttk] received window callback for a window not registered with TTK, ignoring.\n");
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}
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ttk_window_draw(window_ttk);
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}
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void ttk_initialize() {
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/* Connect to the windowing server */
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/* TODO handle errors */
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setup_windowing();
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/* Set up TTK callbacks */
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resize_window_callback = ttk_resize_callback;
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focus_changed_callback = ttk_focus_callback;
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/* TODO more callbacks, keyboard, mouse */
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/* Initialize the decoration library */
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init_decorations();
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ttk_window_list = list_create();
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}
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ttk_window_t * ttk_window_new(char * title, uint16_t width, uint16_t height) {
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ttk_window_t * new_win = malloc(sizeof(ttk_window_t));
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new_win->title = strdup(title);
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new_win->width = width;
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new_win->height = height;
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new_win->off_x = decor_left_width;
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new_win->off_y = decor_top_height;
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new_win->core_window = window_create(TTK_DEFAULT_X, TTK_DEFAULT_Y, new_win->width + decor_width(), new_win->height + decor_height());
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assert(new_win->core_window && "Oh dear, I've failed to allocate a new window from the server. This is terrible.");
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new_win->core_context = init_graphics_window_double_buffer(new_win->core_window);
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draw_fill(new_win->core_context, rgb(TTK_BACKGROUND_DEFAULT));
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ttk_window_draw(new_win);
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list_insert(ttk_window_list, new_win);
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}
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void ttk_quit() {
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list_destroy(ttk_window_list);
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list_free(ttk_window_list);
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free(ttk_window_list);
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teardown_windowing();
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}
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int ttk_run(ttk_window_t * window) {
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while (1) {
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char ch = 0;
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w_keyboard_t * kbd;
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while (kbd = poll_keyboard_async()) {
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free(kbd);
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}
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kbd = poll_keyboard();
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ch = kbd->key;
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free(kbd);
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switch (ch) {
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case 'q':
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goto done;
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default:
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break;
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}
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}
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done:
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ttk_quit();
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return 0;
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}
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/* }}} end TTK */
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int main (int argc, char ** argv) {
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ttk_initialize();
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ttk_window_t * main_window = ttk_window_new("TTK Demo", 500, 500);
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return ttk_run(main_window);
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}
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