diff options
author | chai <chaifix@163.com> | 2019-05-11 22:54:56 +0800 |
---|---|---|
committer | chai <chaifix@163.com> | 2019-05-11 22:54:56 +0800 |
commit | 9645be0af1b1d5cb0ad5892d5464e1b23c51b550 (patch) | |
tree | 129c716bed8e93312421c3adb2f8e7c4f811602d /source/3rd-party/SDL2/src/events/SDL_dropevents.c |
Diffstat (limited to 'source/3rd-party/SDL2/src/events/SDL_dropevents.c')
-rw-r--r-- | source/3rd-party/SDL2/src/events/SDL_dropevents.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/events/SDL_dropevents.c b/source/3rd-party/SDL2/src/events/SDL_dropevents.c new file mode 100644 index 0000000..39c5120 --- /dev/null +++ b/source/3rd-party/SDL2/src/events/SDL_dropevents.c @@ -0,0 +1,98 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 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, 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. +*/ +#include "../SDL_internal.h" + +/* Drag and drop event handling code for SDL */ + +#include "SDL_events.h" +#include "SDL_events_c.h" +#include "SDL_dropevents_c.h" + +#include "../video/SDL_sysvideo.h" /* for SDL_Window internals. */ + + +static int +SDL_SendDrop(SDL_Window *window, const SDL_EventType evtype, const char *data) +{ + static SDL_bool app_is_dropping = SDL_FALSE; + int posted = 0; + + /* Post the event, if desired */ + if (SDL_GetEventState(evtype) == SDL_ENABLE) { + const SDL_bool need_begin = window ? !window->is_dropping : !app_is_dropping; + SDL_Event event; + + if (need_begin) { + SDL_zero(event); + event.type = SDL_DROPBEGIN; + + if (window) { + event.drop.windowID = window->id; + } + + posted = (SDL_PushEvent(&event) > 0); + if (!posted) { + return 0; + } + if (window) { + window->is_dropping = SDL_TRUE; + } else { + app_is_dropping = SDL_TRUE; + } + } + + SDL_zero(event); + event.type = evtype; + event.drop.file = data ? SDL_strdup(data) : NULL; + event.drop.windowID = window ? window->id : 0; + posted = (SDL_PushEvent(&event) > 0); + + if (posted && (evtype == SDL_DROPCOMPLETE)) { + if (window) { + window->is_dropping = SDL_FALSE; + } else { + app_is_dropping = SDL_FALSE; + } + } + } + return posted; +} + +int +SDL_SendDropFile(SDL_Window *window, const char *file) +{ + return SDL_SendDrop(window, SDL_DROPFILE, file); +} + +int +SDL_SendDropText(SDL_Window *window, const char *text) +{ + return SDL_SendDrop(window, SDL_DROPTEXT, text); +} + +int +SDL_SendDropComplete(SDL_Window *window) +{ + return SDL_SendDrop(window, SDL_DROPCOMPLETE, NULL); +} + + +/* vi: set ts=4 sw=4 expandtab: */ |