mirror of
https://github.com/glfw/glfw.git
synced 2025-10-03 21:30:57 +00:00
144 lines
3.7 KiB
C
144 lines
3.7 KiB
C
//========================================================================
|
|
// Window icon test program
|
|
// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
|
|
//
|
|
// This software is provided 'as-is', without any express or implied
|
|
// warranty. In no event will the authors be held liable for any damages
|
|
// arising from the use of this software.
|
|
//
|
|
// Permission is granted to anyone to use this software for any purpose,
|
|
// including commercial applications, and to alter it and redistribute it
|
|
// freely, subject to the following restrictions:
|
|
//
|
|
// 1. The origin of this software must not be misrepresented; you must not
|
|
// claim that you wrote the original software. If you use this software
|
|
// in a product, an acknowledgment in the product documentation would
|
|
// be appreciated but is not required.
|
|
//
|
|
// 2. Altered source versions must be plainly marked as such, and must not
|
|
// be misrepresented as being the original software.
|
|
//
|
|
// 3. This notice may not be removed or altered from any source
|
|
// distribution.
|
|
//
|
|
//========================================================================
|
|
//
|
|
// This program is used to test the icon feature.
|
|
//
|
|
//========================================================================
|
|
|
|
#include <GLFW/glfw3.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
// a simple glfw logo
|
|
const char* const logo[] = {
|
|
"................",
|
|
"................",
|
|
"...0000..0......",
|
|
"...0.....0......",
|
|
"...0.00..0......",
|
|
"...0..0..0......",
|
|
"...0000..0000...",
|
|
"................",
|
|
"................",
|
|
"...000..0...0...",
|
|
"...0....0...0...",
|
|
"...000..0.0.0...",
|
|
"...0....0.0.0...",
|
|
"...0....00000...",
|
|
"................",
|
|
"................"
|
|
};
|
|
|
|
const unsigned char icon_colors[5][4] = {
|
|
{ 0x00, 0x00, 0x00, 0xff }, // black
|
|
{ 0xff, 0x00, 0x00, 0xff }, // red
|
|
{ 0x00, 0xff, 0x00, 0xff }, // green
|
|
{ 0xff, 0x00, 0xff, 0xff }, // blue
|
|
{ 0xff, 0xff, 0xff, 0xff } // white
|
|
};
|
|
|
|
static int cur_icon_color = 0;
|
|
|
|
static void set_icon(GLFWwindow* window, int icon_color)
|
|
{
|
|
GLFWimage img;
|
|
int x, y;
|
|
char* pixels;
|
|
|
|
// create image
|
|
img.width = 16;
|
|
img.height = 16;
|
|
pixels = malloc(img.width * img.height * 4);
|
|
|
|
for (x = 0; x < 16; x++)
|
|
{
|
|
for (y = 0; y < 16; y++)
|
|
{
|
|
// 15 - y because we need to flip the icon
|
|
if (logo[15 - y][x] == '0')
|
|
memcpy(pixels + 4 * (x + y * img.width), icon_colors[icon_color], 4);
|
|
else
|
|
memset(pixels + 4 * (x + y * img.width), 0, 4); // transparency
|
|
}
|
|
}
|
|
|
|
img.pixels = pixels;
|
|
|
|
glfwSetWindowIcons(window, &img, 1);
|
|
}
|
|
|
|
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
|
|
{
|
|
|
|
if (action != GLFW_PRESS)
|
|
return;
|
|
|
|
switch (key)
|
|
{
|
|
case GLFW_KEY_ESCAPE:
|
|
glfwDestroyWindow(window);
|
|
break;
|
|
case GLFW_KEY_SPACE:
|
|
cur_icon_color = (cur_icon_color + 1) % 5;
|
|
set_icon(window, cur_icon_color);
|
|
break;
|
|
}
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
GLFWwindow* window;
|
|
|
|
if (!glfwInit())
|
|
{
|
|
fprintf(stderr, "Failed to initialize GLFW\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
window = glfwCreateWindow(800, 600, "Icons", NULL, NULL);
|
|
if (!window)
|
|
{
|
|
glfwTerminate();
|
|
|
|
fprintf(stderr, "Failed to open GLFW window\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
glfwSetKeyCallback(window, key_callback);
|
|
set_icon(window, cur_icon_color);
|
|
|
|
while (!glfwWindowShouldClose(window))
|
|
{
|
|
glfwSwapBuffers(window);
|
|
glfwPollEvents();
|
|
}
|
|
|
|
glfwTerminate();
|
|
exit(EXIT_SUCCESS);
|
|
}
|
|
|