change build system to CMake and use SDL3 for everything

libs/SDL3/test/testdropfile.c

@@ -0,0 +1,125 @@
+/*
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.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.
+*/
+
+#define SDL_MAIN_USE_CALLBACKS 1
+#include <SDL3/SDL_test_common.h>
+#include <SDL3/SDL_main.h>
+
+typedef struct {
+    SDLTest_CommonState *state;
+    bool is_hover;
+    float x;
+    float y;
+    unsigned int windowID;
+} dropfile_dialog;
+
+SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
+{
+    int i;
+    dropfile_dialog *dialog;
+    SDLTest_CommonState *state;
+
+    /* Initialize test framework */
+    state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
+    if (!state) {
+        return SDL_APP_FAILURE;
+    }
+
+    for (i = 1; i < argc;) {
+        int consumed;
+
+        consumed = SDLTest_CommonArg(state, i);
+        /* needed voodoo to allow app to launch via macOS Finder */
+        if (SDL_strncmp(argv[i], "-psn", 4) == 0) {
+            consumed = 1;
+        }
+        if (consumed == 0) {
+            consumed = -1;
+        }
+        if (consumed < 0) {
+            SDLTest_CommonLogUsage(state, argv[0], NULL);
+            goto onerror;
+        }
+        i += consumed;
+    }
+    if (!SDLTest_CommonInit(state)) {
+        goto onerror;
+    }
+    dialog = SDL_calloc(1, sizeof(dropfile_dialog));
+    if (!dialog) {
+        goto onerror;
+    }
+    *appstate = dialog;
+
+    dialog->state = state;
+    return SDL_APP_CONTINUE;
+onerror:
+    SDLTest_CommonQuit(state);
+    return SDL_APP_FAILURE;
+}
+
+SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event)
+{
+    dropfile_dialog *dialog = appstate;
+    if (event->type == SDL_EVENT_DROP_BEGIN) {
+        SDL_Log("Drop beginning on window %u at (%f, %f)", (unsigned int)event->drop.windowID, event->drop.x, event->drop.y);
+    } else if (event->type == SDL_EVENT_DROP_COMPLETE) {
+        dialog->is_hover = false;
+        SDL_Log("Drop complete on window %u at (%f, %f)", (unsigned int)event->drop.windowID, event->drop.x, event->drop.y);
+    } else if ((event->type == SDL_EVENT_DROP_FILE) || (event->type == SDL_EVENT_DROP_TEXT)) {
+        const char *typestr = (event->type == SDL_EVENT_DROP_FILE) ? "File" : "Text";
+        SDL_Log("%s dropped on window %u: %s at (%f, %f)", typestr, (unsigned int)event->drop.windowID, event->drop.data, event->drop.x, event->drop.y);
+    } else if (event->type == SDL_EVENT_DROP_POSITION) {
+        const float w_x = event->drop.x;
+        const float w_y = event->drop.y;
+        SDL_ConvertEventToRenderCoordinates(SDL_GetRenderer(SDL_GetWindowFromEvent(event)), event);
+        dialog->is_hover = true;
+        dialog->x = event->drop.x;
+        dialog->y = event->drop.y;
+        dialog->windowID = event->drop.windowID;
+        SDL_Log("Drop position on window %u at (%f, %f) data = %s", (unsigned int)event->drop.windowID, w_x, w_y, event->drop.data);
+    }
+
+    return SDLTest_CommonEventMainCallbacks(dialog->state, event);
+}
+
+SDL_AppResult SDL_AppIterate(void *appstate)
+{
+    dropfile_dialog *dialog = appstate;
+    int i;
+
+    for (i = 0; i < dialog->state->num_windows; ++i) {
+        SDL_Renderer *renderer = dialog->state->renderers[i];
+        SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
+        SDL_RenderClear(renderer);
+        if (dialog->is_hover) {
+            if (dialog->windowID == SDL_GetWindowID(SDL_GetRenderWindow(renderer))) {
+                int len = 2000;
+                SDL_SetRenderDrawColor(renderer, 0x0A, 0x0A, 0x0A, 0xFF);
+                SDL_RenderLine(renderer, dialog->x, dialog->y - len, dialog->x, dialog->y + len);
+                SDL_RenderLine(renderer, dialog->x - len, dialog->y, dialog->x + len, dialog->y);
+            }
+        }
+        SDL_RenderPresent(renderer);
+    }
+    return SDL_APP_CONTINUE;
+}
+
+void SDL_AppQuit(void *appstate, SDL_AppResult result)
+{
+    dropfile_dialog *dialog = appstate;
+    if (dialog) {
+        SDLTest_CommonState *state = dialog->state;
+        SDL_free(dialog);
+        SDLTest_CommonQuit(state);
+    }
+}