add glfw library

1 files changed, 145 insertions, 0 deletions

diff --git a/libs/glfw-3.3.8/tests/clipboard.c b/libs/glfw-3.3.8/tests/clipboard.c
new file mode 100644
index 0000000..41454a3
--- /dev/null
+++ b/libs/glfw-3.3.8/tests/clipboard.c
@@ -0,0 +1,145 @@
+//========================================================================
+// Clipboard test program
+// Copyright (c) Camilla Löwy <elmindreda@glfw.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 clipboard functionality.
+//
+//========================================================================
+
+#include <glad/gl.h>
+#define GLFW_INCLUDE_NONE
+#include <GLFW/glfw3.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "getopt.h"
+
+#if defined(__APPLE__)
+ #define MODIFIER GLFW_MOD_SUPER
+#else
+ #define MODIFIER GLFW_MOD_CONTROL
+#endif
+
+static void usage(void)
+{
+    printf("Usage: clipboard [-h]\n");
+}
+
+static void error_callback(int error, const char* description)
+{
+    fprintf(stderr, "Error: %s\n", description);
+}
+
+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:
+            glfwSetWindowShouldClose(window, GLFW_TRUE);
+            break;
+
+        case GLFW_KEY_V:
+            if (mods == MODIFIER)
+            {
+                const char* string;
+
+                string = glfwGetClipboardString(NULL);
+                if (string)
+                    printf("Clipboard contains \"%s\"\n", string);
+                else
+                    printf("Clipboard does not contain a string\n");
+            }
+            break;
+
+        case GLFW_KEY_C:
+            if (mods == MODIFIER)
+            {
+                const char* string = "Hello GLFW World!";
+                glfwSetClipboardString(NULL, string);
+                printf("Setting clipboard to \"%s\"\n", string);
+            }
+            break;
+    }
+}
+
+int main(int argc, char** argv)
+{
+    int ch;
+    GLFWwindow* window;
+
+    while ((ch = getopt(argc, argv, "h")) != -1)
+    {
+        switch (ch)
+        {
+            case 'h':
+                usage();
+                exit(EXIT_SUCCESS);
+
+            default:
+                usage();
+                exit(EXIT_FAILURE);
+        }
+    }
+
+    glfwSetErrorCallback(error_callback);
+
+    if (!glfwInit())
+    {
+        fprintf(stderr, "Failed to initialize GLFW\n");
+        exit(EXIT_FAILURE);
+    }
+
+    window = glfwCreateWindow(200, 200, "Clipboard Test", NULL, NULL);
+    if (!window)
+    {
+        glfwTerminate();
+
+        fprintf(stderr, "Failed to open GLFW window\n");
+        exit(EXIT_FAILURE);
+    }
+
+    glfwMakeContextCurrent(window);
+    gladLoadGL(glfwGetProcAddress);
+    glfwSwapInterval(1);
+
+    glfwSetKeyCallback(window, key_callback);
+
+    glClearColor(0.5f, 0.5f, 0.5f, 0);
+
+    while (!glfwWindowShouldClose(window))
+    {
+        glClear(GL_COLOR_BUFFER_BIT);
+
+        glfwSwapBuffers(window);
+        glfwWaitEvents();
+    }
+
+    glfwTerminate();
+    exit(EXIT_SUCCESS);
+}
+