orca/sketches/canvas/main.c

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/*************************************************************************
*
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* Orca
* Copyright 2023 Martin Fouilleul and the Orca project contributors
* See LICENSE.txt for licensing information
*
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**************************************************************************/
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#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "orca.h"
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int main()
{
oc_init();
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oc_rect windowRect = { .x = 100, .y = 100, .w = 810, .h = 610 };
oc_window window = oc_window_create(windowRect, OC_STR8("test"), 0);
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oc_rect contentRect = oc_window_get_content_rect(window);
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//NOTE: create surface
oc_surface surface = oc_surface_create_for_window(window, OC_CANVAS);
oc_surface_swap_interval(surface, 1);
if(oc_surface_is_nil(surface))
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{
oc_log_error("Error: couldn't create surface\n");
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return (-1);
}
//TODO: create canvas
oc_canvas canvas = oc_canvas_create();
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if(oc_canvas_is_nil(canvas))
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{
oc_log_error("Error: couldn't create canvas\n");
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return (-1);
}
// start app
oc_window_bring_to_front(window);
oc_window_focus(window);
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f64 frameTime = 0;
f32 x = 0, y = 0;
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while(!oc_should_quit())
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{
f64 startTime = oc_clock_time(OC_CLOCK_MONOTONIC);
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oc_pump_events(0);
oc_event* event = 0;
while((event = oc_next_event(oc_scratch())) != 0)
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{
switch(event->type)
{
case OC_EVENT_WINDOW_CLOSE:
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{
oc_request_quit();
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}
break;
case OC_EVENT_KEYBOARD_KEY:
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{
if(event->key.action == OC_KEY_PRESS)
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{
if(event->key.code == OC_KEY_LEFT)
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{
x -= 1;
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}
if(event->key.code == OC_KEY_RIGHT)
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{
x += 1;
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}
if(event->key.code == OC_KEY_UP)
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{
y -= 1;
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}
if(event->key.code == OC_KEY_DOWN)
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{
y += 1;
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}
}
}
break;
default:
break;
}
}
oc_surface_select(surface);
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// background
oc_set_color_rgba(0, 1, 1, 1);
oc_clear();
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oc_move_to(100, 100);
oc_line_to(150, 150);
oc_line_to(100, 200);
oc_line_to(50, 150);
oc_close_path();
oc_set_color_rgba(1, 0, 0, 1);
oc_fill();
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oc_move_to(200, 100);
oc_line_to(410, 100);
oc_line_to(410, 200);
oc_line_to(200, 200);
oc_close_path();
oc_set_color_rgba(0, 1, 0, 1);
oc_fill();
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oc_set_color_rgba(0, 0.5, 1, 0.5);
oc_rectangle_fill(120, 120, 200, 200);
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oc_set_color_rgba(1, 0, 0.5, 1);
oc_rectangle_fill(700, 500, 200, 200);
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oc_move_to(300, 300);
oc_quadratic_to(400, 500, 500, 300);
oc_close_path();
oc_set_color_rgba(0, 0, 1, 1);
oc_fill();
oc_move_to(200, 450);
oc_cubic_to(200, 250, 400, 550, 400, 450);
oc_close_path();
oc_set_color_rgba(1, 0.5, 0, 1);
oc_fill();
/*
oc_set_joint(OC_JOINT_NONE);
oc_set_max_joint_excursion(20);
oc_set_cap(OC_CAP_SQUARE);
oc_move_to(x+200, y+200);
oc_line_to(x+300, y+300);
oc_line_to(x+200, y+400);
oc_line_to(x+100, y+300);
oc_close_path();
oc_set_color_rgba(1, 0, 0, 1);
// oc_set_width(2);
oc_stroke();
oc_move_to(400, 400);
oc_quadratic_to(600, 601, 800, 400);
oc_set_color_rgba(0, 0, 1, 1);
oc_stroke();
oc_move_to(x+400, y+300);
oc_cubic_to(x+400, y+100, x+600, y+400, x+600, y+300);
oc_close_path();
oc_set_color_rgba(0, 0, 1, 1);
oc_stroke();
oc_set_color_rgba(1, 0, 0, 1);
oc_rounded_rectangle_fill(100, 100, 200, 300, 20);
oc_move_to(x+8, y+8);
oc_line_to(x+33, y+8);
oc_line_to(x+33, y+19);
oc_line_to(x+8, y+19);
oc_close_path();
oc_set_color_rgba(0, 0, 1, 1);
oc_fill();
*/
oc_set_width(1);
oc_set_color_rgba(1, 0, 0, 1);
oc_rounded_rectangle_stroke(400, 400, 160, 160, 80);
oc_log_info("Orca vector graphics test program (frame time = %fs, fps = %f)...\n",
frameTime,
1. / frameTime);
oc_render(canvas);
oc_surface_present(surface);
oc_arena_clear(oc_scratch());
frameTime = oc_clock_time(OC_CLOCK_MONOTONIC) - startTime;
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}
oc_canvas_destroy(canvas);
oc_surface_destroy(surface);
oc_window_destroy(window);
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oc_terminate();
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return (0);
}