527 lines
14 KiB
C
527 lines
14 KiB
C
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <cairo.h>
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#include <cairo-ft.h>
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#include <ft2build.h>
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#include <kos32sys.h>
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#include FT_FREETYPE_H
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#include "tiger.inc"
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typedef unsigned int color_t;
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int width = 500;
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int height = 400;
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cairo_surface_t *main_surface;
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unsigned char *winbitmap;
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int winstride;
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int screen = -1;
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cairo_font_face_t *c_face;
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static void draw_next_msg(cairo_t *cr, int width, int height)
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{
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cairo_identity_matrix (cr);
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cairo_select_font_face (cr, "cairo:monospace", CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_BOLD);
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cairo_set_font_size (cr, 28);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_move_to (cr, 160.0, 360.0);
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cairo_show_text (cr, "Press any key");
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};
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static void screen_0(cairo_t *cr, int width, int height)
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{
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cairo_identity_matrix (cr);
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cairo_set_source_rgb(cr,1,1,1);
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cairo_paint(cr);
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cairo_translate(cr, 50, 30);
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cairo_set_source_rgb(cr,0, 0,0);
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cairo_set_line_width(cr, 10);
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cairo_rectangle(cr, 20, 20, 120, 80);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgb(cr, 0, 0.5, 0.5);
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cairo_fill(cr);
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cairo_set_source_rgb(cr,0, 0,0);
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cairo_rectangle(cr, 180, 20, 80, 80);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgb(cr, 0, 1, 1);
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cairo_fill(cr);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_arc(cr, 330, 60, 40, 0, 2*M_PI);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgb(cr, 0.5, 0.0, 0.5);
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cairo_fill(cr);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_arc(cr, 90, 160, 40, M_PI/4, M_PI);
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cairo_close_path(cr);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgb(cr, 0.5, 0.5, 0.0);
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cairo_fill(cr);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_translate(cr, 220, 180);
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cairo_scale(cr, 1, 0.7);
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cairo_arc(cr, 0, 0, 50, 0, 2*M_PI);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgb(cr, 1, 0, 1);
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cairo_fill(cr);
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draw_next_msg(cr, width, height);
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};
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static int points[11][2] = {
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{ 0, 85 },
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{ 75, 75 },
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{ 100, 10 },
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{ 125, 75 },
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{ 200, 85 },
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{ 150, 125 },
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{ 160, 190 },
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{ 100, 150 },
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{ 40, 190 },
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{ 50, 125 },
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{ 0, 85 }
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};
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static void screen_1(cairo_t *cr, int width, int height)
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{
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cairo_set_source_rgb(cr, 1, 1, 1);
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cairo_paint(cr);
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cairo_translate(cr, 20, 40);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_set_line_width(cr, 10);
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cairo_move_to(cr, 0, 85);
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int i;
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for ( i = 0; i < 10; i++ ) {
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cairo_line_to(cr, points[i][0], points[i][1]);
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}
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cairo_close_path(cr);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgb(cr, 0, 1, 0);
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cairo_fill(cr);
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cairo_move_to(cr, 240, 40);
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cairo_line_to(cr, 240, 160);
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cairo_line_to(cr, 350, 160);
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cairo_close_path(cr);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgb(cr, 1, 0, 0);
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cairo_fill(cr);
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cairo_move_to(cr, 380, 40);
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cairo_line_to(cr, 380, 160);
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cairo_line_to(cr, 450, 160);
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cairo_curve_to(cr, 440, 155, 380, 145, 380, 40);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgb(cr, 1, 0, 1);
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cairo_fill(cr);
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draw_next_msg(cr, width, height);
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};
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static void screen_2(cairo_t *cr, int width, int height)
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{
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cairo_pattern_t *pat1;
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cairo_pattern_t *pat2;
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cairo_pattern_t *pat3;
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cairo_translate(cr, 75, 0);
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cairo_set_source_rgb(cr, 1, 1,1);
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cairo_paint(cr);
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cairo_move_to(cr, 0, 85);
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pat1 = cairo_pattern_create_linear(0.0, 0.0, 350.0, 350.0);
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double j;
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int count = 1;
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for ( j = 0.1; j < 1; j += 0.1 )
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{
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if (( count % 2 ))
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{
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cairo_pattern_add_color_stop_rgb(pat1, j, 0, 0, 0);
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}
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else {
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cairo_pattern_add_color_stop_rgb(pat1, j, 1, 0, 0);
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}
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count++;
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}
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cairo_rectangle(cr, 20, 20, 300, 100);
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cairo_set_source(cr, pat1);
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cairo_fill(cr);
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pat2 = cairo_pattern_create_linear(0.0, 0.0, 350.0, 0.0);
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double i;
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count = 1;
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for ( i = 0.05; i < 0.95; i += 0.025 )
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{
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if (( count % 2 ))
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{
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cairo_pattern_add_color_stop_rgb(pat2, i, 0, 0, 0);
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}
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else {
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cairo_pattern_add_color_stop_rgb(pat2, i, 0, 0, 1);
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}
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count++;
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}
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cairo_rectangle(cr, 20, 140, 300, 100);
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cairo_set_source(cr, pat2);
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cairo_fill(cr);
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pat3 = cairo_pattern_create_linear(20.0, 260.0, 20.0, 360.0);
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cairo_pattern_add_color_stop_rgb(pat3, 0.1, 0, 0, 0);
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cairo_pattern_add_color_stop_rgb(pat3, 0.5, 1, 1, 0);
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cairo_pattern_add_color_stop_rgb(pat3, 0.9, 0, 0, 0);
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cairo_rectangle(cr, 20, 260, 300, 100);
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cairo_set_source(cr, pat3);
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cairo_fill(cr);
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cairo_pattern_destroy(pat1);
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cairo_pattern_destroy(pat2);
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cairo_pattern_destroy(pat3);
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draw_next_msg(cr, width, height);
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};
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static void screen_3(cairo_t *cr, int width, int height)
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{
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cairo_translate(cr, 110,20);
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cairo_set_source_rgb(cr, 1, 1,1);
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cairo_paint(cr);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_set_line_width(cr, 10);
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cairo_move_to (cr, 128.0, 25.6);
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cairo_line_to (cr, 230.4, 230.4);
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cairo_rel_line_to (cr, -102.4, 0.0);
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cairo_curve_to (cr, 51.2, 230.4, 51.2, 128.0, 128.0, 128.0);
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cairo_close_path (cr);
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cairo_move_to (cr, 64.0, 25.6);
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cairo_rel_line_to (cr, 51.2, 51.2);
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cairo_rel_line_to (cr, -51.2, 51.2);
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cairo_rel_line_to (cr, -51.2, -51.2);
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cairo_close_path (cr);
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cairo_set_line_width (cr, 10.0);
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_fill_preserve (cr);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_stroke (cr);
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draw_next_msg(cr, width, height);
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}
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static void screen_hello(cairo_t *cr, int width, int height)
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{
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cairo_set_source_rgb(cr, 0.7, 0.7, 0.7);
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cairo_paint(cr);
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cairo_set_line_width(cr, 1);
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cairo_select_font_face (cr, "cairo:sans", CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_BOLD);
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cairo_set_font_size (cr, 200);
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cairo_set_source_rgb(cr, 0, 1.0,0);
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cairo_move_to (cr, 20.0, 145.0);
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cairo_show_text (cr, "Hello");
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#if 0
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cairo_move_to (cr, 70.0, 170.0);
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cairo_text_path (cr, "world");
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cairo_set_source_rgb (cr, 0.5, 0.5, 1);
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cairo_fill_preserve (cr);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_set_line_width (cr, 2.56);
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cairo_stroke (cr);
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#else
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cairo_set_font_size (cr, 140);
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_move_to (cr, 80.0, 175.0);
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cairo_show_text (cr, "world");
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#endif
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cairo_identity_matrix (cr);
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cairo_select_font_face (cr, "cairo:sans", CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_BOLD);
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cairo_set_font_size (cr, 16);
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_move_to (cr, 160.0, 210.0);
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cairo_show_text (cr, "www.cairographics.org");
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draw_next_msg(cr, width, height);
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};
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static void draw_tiger(cairo_t *cr, int width, int height)
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{
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unsigned int i;
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cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
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cairo_set_source_rgba (cr, 0.1, 0.2, 0.3, 1.0);
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cairo_paint (cr);
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cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
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cairo_translate (cr, width/3, height/3);
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cairo_scale (cr, .85, .85);
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for (i = 0; i < sizeof (tiger_commands)/sizeof(tiger_commands[0]);i++) {
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const struct command *cmd = &tiger_commands[i];
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switch (cmd->type) {
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case 'm':
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cairo_move_to (cr, cmd->x0, cmd->y0);
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break;
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case 'l':
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cairo_line_to (cr, cmd->x0, cmd->y0);
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break;
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case 'c':
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cairo_curve_to (cr,
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cmd->x0, cmd->y0,
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cmd->x1, cmd->y1,
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cmd->x2, cmd->y2);
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break;
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case 'f':
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cairo_set_source_rgba (cr,
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cmd->x0, cmd->y0, cmd->x1, cmd->y1);
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cairo_fill (cr);
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break;
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}
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}
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}
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static void (*draw_screen[5])(cairo_t *cr, int width, int height)=
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{
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screen_0,
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screen_1,
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screen_2,
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screen_3,
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draw_tiger
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};
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int check_events(cairo_t *cr)
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{
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uint32_t ev;
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oskey_t key;
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int retval = 1;
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ev = get_os_event();
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switch(ev)
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{
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case 1:
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BeginDraw();
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DrawWindow(0,0,0,0,NULL,0,0x73);
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Blit(winbitmap, TYPE_3_BORDER_WIDTH, get_skin_height(),
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0, 0, width, height,width,height,winstride);
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EndDraw();
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break;
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case 2:
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key = get_key();
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if(1 == key.val)
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break;
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if(0x8000 & key.val)
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break;
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if(0x0100 == key.val)
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{
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retval = 0;
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break;
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};
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if(++screen > 4){screen = 0;};
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draw_screen[screen](cr,width,height);
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Blit(winbitmap, TYPE_3_BORDER_WIDTH, get_skin_height(),
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0, 0, width, height,width,height,winstride);
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break;
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case 3:
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if(get_os_button()==1)
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retval = 0;
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break;
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};
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return retval;
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}
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#if 0
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static void rounded_flat(cairo_t *cr, int x, int y, int w, int h)
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{
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double radius = 4;
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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 + w - radius, y + radius, radius, -90 * degrees, 0 * degrees);
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cairo_arc (cr, x + w - radius, y + h - radius, radius, 0 * degrees, 90 * degrees);
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cairo_arc (cr, x +radius, y + h - 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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cairo_set_source_rgb (cr, 0.8, 0.8, 0.8);
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cairo_fill_preserve (cr);
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cairo_set_source_rgba (cr, 0.2, 0.2, 0.2, 0.5);
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cairo_set_line_width (cr, 2.0);
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cairo_stroke (cr);
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};
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static void rounded(cairo_t *cr, int x, int y, int w, int h)
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{
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cairo_pattern_t *pat;
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double radius = 5;
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double degrees = M_PI / 180.0;
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pat = cairo_pattern_create_linear (x, y, x, y+h);
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cairo_pattern_add_color_stop_rgb (pat, 0, 0.7, 0.7, 0.7);
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cairo_pattern_add_color_stop_rgb (pat, 0.125, 0.85, 0.85, 0.85);
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cairo_pattern_add_color_stop_rgb (pat, 0.25, 1.0, 1.0, 1.0);
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cairo_pattern_add_color_stop_rgb (pat, 0.75, 1.0, 1.0, 1.0);
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cairo_pattern_add_color_stop_rgb (pat, 1, 0.6, 0.6, 0.6);
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cairo_new_sub_path (cr);
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cairo_arc (cr, x + w - radius, y + radius, radius, -90 * degrees, 0 * degrees);
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cairo_arc (cr, x + w - radius, y + h - radius, radius, 0 * degrees, 90 * degrees);
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cairo_arc (cr, x +radius, y + h - 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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cairo_set_source (cr, pat);
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cairo_fill_preserve (cr);
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cairo_set_source_rgba (cr, 0.3, 0.3, 0.3, 0.5);
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cairo_set_line_width (cr, 1.0);
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cairo_stroke (cr);
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cairo_pattern_destroy (pat);
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};
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static void rounded_hl(cairo_t *cr, int x, int y, int w, int h)
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{
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cairo_pattern_t *pat;
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double radius = 5;
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double degrees = M_PI / 180.0;
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pat = cairo_pattern_create_linear (x, y, x, y+h);
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cairo_pattern_add_color_stop_rgb (pat, 0, 0.7, 0.7, 0.7);
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cairo_pattern_add_color_stop_rgb (pat, 0.125, 0.85, 0.85, 0.85);
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cairo_pattern_add_color_stop_rgb (pat, 0.25, 1.0, 1.0, 1.0);
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cairo_pattern_add_color_stop_rgb (pat, 0.75, 1.0, 1.0, 1.0);
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cairo_pattern_add_color_stop_rgb (pat, 1, 0.6, 0.6, 0.6);
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cairo_new_sub_path (cr);
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cairo_arc (cr, x + w - radius, y + radius, radius, -90 * degrees, 0 * degrees);
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cairo_arc (cr, x + w - radius, y + h - radius, radius, 0 * degrees, 90 * degrees);
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cairo_arc (cr, x +radius, y + h - 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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cairo_set_source (cr, pat);
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cairo_fill_preserve (cr);
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cairo_set_source_rgba (cr, 0, 0.6, 1, 1);
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cairo_set_line_width (cr, 2.0);
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cairo_stroke (cr);
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cairo_pattern_destroy (pat);
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cairo_select_font_face (cr, "cairo:monospace", CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_BOLD);
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cairo_text_extents_t extents;
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cairo_set_font_size (cr, 20);
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cairo_text_extents (cr, "Cancel", &extents);
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x+= w/2 -(extents.width/2 + extents.x_bearing);
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y+= h/2 - (extents.height/2 + extents.y_bearing);
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cairo_move_to (cr, x, y );
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_show_text (cr, "Cancel");
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cairo_set_source_rgb (cr, 0, 0, 0);
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};
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#endif
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static cairo_surface_t* main_surface_create(int width, int height)
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{
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cairo_surface_t *surface;
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surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
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return surface;
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}
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int main ()
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{
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int tmp;
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cairo_t *cr;
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__asm__ __volatile__(
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"int $0x40"
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:"=a"(tmp)
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:"a"(66),"b"(1),"c"(1));
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__asm__ __volatile__(
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"int $0x40"
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::"a"(40), "b"(0xc0000027));
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main_surface = main_surface_create(width, height);
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cr = cairo_create(main_surface);
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winstride = cairo_image_surface_get_stride(main_surface);
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winbitmap = cairo_image_surface_get_data(main_surface);
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screen_hello(cr,width,height);
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BeginDraw();
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DrawWindow(30, 40, width+TYPE_3_BORDER_WIDTH*2,
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height+TYPE_3_BORDER_WIDTH+get_skin_height(), "Cairo demo", 0x000000, 0x73);
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Blit(winbitmap, TYPE_3_BORDER_WIDTH, get_skin_height(), 0, 0, width, height,
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width,height,winstride);
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EndDraw();
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while( check_events(cr));
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cairo_destroy(cr);
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cairo_surface_destroy(main_surface);
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return 0;
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}
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