Atlas - testdropfile.c
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[FILE BEGIN]
1/*
2  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
3
4  This software is provided 'as-is', without any express or implied
5  warranty.  In no event will the authors be held liable for any damages
6  arising from the use of this software.
7
8  Permission is granted to anyone to use this software for any purpose,
9  including commercial applications, and to alter it and redistribute it
10  freely.
11*/
12
13#define SDL_MAIN_USE_CALLBACKS 1
14#include <SDL3/SDL_test_common.h>
15#include <SDL3/SDL_main.h>
16
17typedef struct {
18    SDLTest_CommonState *state;
19    bool is_hover;
20    float x;
21    float y;
22    unsigned int windowID;
23} dropfile_dialog;
24
25SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
26{
27    int i;
28    dropfile_dialog *dialog;
29    SDLTest_CommonState *state;
30
31    /* Initialize test framework */
32    state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
33    if (!state) {
34        return SDL_APP_FAILURE;
35    }
36
37    for (i = 1; i < argc;) {
38        int consumed;
39
40        consumed = SDLTest_CommonArg(state, i);
41        /* needed voodoo to allow app to launch via macOS Finder */
42        if (SDL_strncmp(argv[i], "-psn", 4) == 0) {
43            consumed = 1;
44        }
45        if (consumed == 0) {
46            consumed = -1;
47        }
48        if (consumed < 0) {
49            SDLTest_CommonLogUsage(state, argv[0], NULL);
50            goto onerror;
51        }
52        i += consumed;
53    }
54    if (!SDLTest_CommonInit(state)) {
55        goto onerror;
56    }
57    dialog = SDL_calloc(1, sizeof(dropfile_dialog));
58    if (!dialog) {
59        goto onerror;
60    }
61    *appstate = dialog;
62
63    dialog->state = state;
64    return SDL_APP_CONTINUE;
65onerror:
66    SDLTest_CommonQuit(state);
67    return SDL_APP_FAILURE;
68}
69
70SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event)
71{
72    dropfile_dialog *dialog = appstate;
73    if (event->type == SDL_EVENT_DROP_BEGIN) {
74        SDL_Log("Drop beginning on window %u at (%f, %f)", (unsigned int)event->drop.windowID, event->drop.x, event->drop.y);
75    } else if (event->type == SDL_EVENT_DROP_COMPLETE) {
76        dialog->is_hover = false;
77        SDL_Log("Drop complete on window %u at (%f, %f)", (unsigned int)event->drop.windowID, event->drop.x, event->drop.y);
78    } else if ((event->type == SDL_EVENT_DROP_FILE) || (event->type == SDL_EVENT_DROP_TEXT)) {
79        const char *typestr = (event->type == SDL_EVENT_DROP_FILE) ? "File" : "Text";
80        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);
81    } else if (event->type == SDL_EVENT_DROP_POSITION) {
82        const float w_x = event->drop.x;
83        const float w_y = event->drop.y;
84        SDL_ConvertEventToRenderCoordinates(SDL_GetRenderer(SDL_GetWindowFromEvent(event)), event);
85        dialog->is_hover = true;
86        dialog->x = event->drop.x;
87        dialog->y = event->drop.y;
88        dialog->windowID = event->drop.windowID;
89        SDL_Log("Drop position on window %u at (%f, %f) data = %s", (unsigned int)event->drop.windowID, w_x, w_y, event->drop.data);
90    }
91
92    return SDLTest_CommonEventMainCallbacks(dialog->state, event);
93}
94
95SDL_AppResult SDL_AppIterate(void *appstate)
96{
97    dropfile_dialog *dialog = appstate;
98    int i;
99
100    for (i = 0; i < dialog->state->num_windows; ++i) {
101        SDL_Renderer *renderer = dialog->state->renderers[i];
102        SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
103        SDL_RenderClear(renderer);
104        if (dialog->is_hover) {
105            if (dialog->windowID == SDL_GetWindowID(SDL_GetRenderWindow(renderer))) {
106                int len = 2000;
107                SDL_SetRenderDrawColor(renderer, 0x0A, 0x0A, 0x0A, 0xFF);
108                SDL_RenderLine(renderer, dialog->x, dialog->y - len, dialog->x, dialog->y + len);
109                SDL_RenderLine(renderer, dialog->x - len, dialog->y, dialog->x + len, dialog->y);
110            }
111        }
112        SDL_RenderPresent(renderer);
113    }
114    return SDL_APP_CONTINUE;
115}
116
117void SDL_AppQuit(void *appstate, SDL_AppResult result)
118{
119    dropfile_dialog *dialog = appstate;
120    if (dialog) {
121        SDLTest_CommonState *state = dialog->state;
122        SDL_free(dialog);
123        SDLTest_CommonQuit(state);
124    }
125}
126
[FILE END]
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