SDL_windowsclipboard.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2019 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"
#if SDL_VIDEO_DRIVER_WINDOWS
#include "SDL_windowsvideo.h"
#include "SDL_windowswindow.h"
#include "../../events/SDL_clipboardevents_c.h"
#ifdef UNICODE
#define TEXT_FORMAT CF_UNICODETEXT
#else
#define TEXT_FORMAT CF_TEXT
#endif
/* Get any application owned window handle for clipboard association */
static HWND
GetWindowHandle(_THIS)
{
SDL_Window *window;
window = _this->windows;
if (window) {
return ((SDL_WindowData *) window->driverdata)->hwnd;
}
return NULL;
}
int
WIN_SetClipboardText(_THIS, const char *text)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
int result = 0;
if (OpenClipboard(GetWindowHandle(_this))) {
HANDLE hMem;
LPTSTR tstr;
SIZE_T i, size;
/* Convert the text from UTF-8 to Windows Unicode */
tstr = WIN_UTF8ToString(text);
if (!tstr) {
return -1;
}
/* Find out the size of the data */
for (size = 0, i = 0; tstr[i]; ++i, ++size) {
if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) {
/* We're going to insert a carriage return */
++size;
}
}
size = (size+1)*sizeof(*tstr);
/* Save the data to the clipboard */
hMem = GlobalAlloc(GMEM_MOVEABLE, size);
if (hMem) {
LPTSTR dst = (LPTSTR)GlobalLock(hMem);
if (dst) {
/* Copy the text over, adding carriage returns as necessary */
for (i = 0; tstr[i]; ++i) {
if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) {
*dst++ = '\r';
}
*dst++ = tstr[i];
}
*dst = 0;
GlobalUnlock(hMem);
}
EmptyClipboard();
if (!SetClipboardData(TEXT_FORMAT, hMem)) {
result = WIN_SetError("Couldn't set clipboard data");
}
data->clipboard_count = GetClipboardSequenceNumber();
}
SDL_free(tstr);
CloseClipboard();
} else {
result = WIN_SetError("Couldn't open clipboard");
}
return result;
}
char *
WIN_GetClipboardText(_THIS)
{
char *text;
text = NULL;
if (IsClipboardFormatAvailable(TEXT_FORMAT) &&
OpenClipboard(GetWindowHandle(_this))) {
HANDLE hMem;
LPTSTR tstr;
hMem = GetClipboardData(TEXT_FORMAT);
if (hMem) {
tstr = (LPTSTR)GlobalLock(hMem);
text = WIN_StringToUTF8(tstr);
GlobalUnlock(hMem);
} else {
WIN_SetError("Couldn't get clipboard data");
}
CloseClipboard();
}
if (!text) {
text = SDL_strdup("");
}
return text;
}
SDL_bool
WIN_HasClipboardText(_THIS)
{
SDL_bool result = SDL_FALSE;
char *text = WIN_GetClipboardText(_this);
if (text) {
result = text[0] != '\0' ? SDL_TRUE : SDL_FALSE;
SDL_free(text);
}
return result;
}
void
WIN_CheckClipboardUpdate(struct SDL_VideoData * data)
{
const DWORD count = GetClipboardSequenceNumber();
if (count != data->clipboard_count) {
if (data->clipboard_count) {
SDL_SendClipboardUpdate();
}
data->clipboard_count = count;
}
}
#endif /* SDL_VIDEO_DRIVER_WINDOWS */
/* vi: set ts=4 sw=4 expandtab: */
SDL_VideoDevice::driverdata
void * driverdata
Definition: SDL_sysvideo.h:381
WIN_UTF8ToString
#define WIN_UTF8ToString(S)
Definition: SDL_windows.h:47
NULL
#define NULL
Definition: begin_code.h:167
WIN_HasClipboardText
SDL_bool WIN_HasClipboardText(_THIS)
SDL_WindowData
Definition: SDL_androidwindow.h:38
count
GLuint GLuint GLsizei count
Definition: SDL_opengl.h:1571
result
GLuint64EXT * result
Definition: SDL_opengl_glext.h:9432
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
WIN_CheckClipboardUpdate
void WIN_CheckClipboardUpdate(struct SDL_VideoData *data)
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_SendClipboardUpdate
int SDL_SendClipboardUpdate(void)
Definition: SDL_clipboardevents.c:31
SDL_windowswindow.h
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_FALSE
@ SDL_FALSE
Definition: SDL_stdinc.h:163
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:118
SDL_windowsvideo.h
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
WIN_SetClipboardText
int WIN_SetClipboardText(_THIS, const char *text)
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
text
static char text[MAX_TEXT_LENGTH]
Definition: testime.c:47
WIN_GetClipboardText
char * WIN_GetClipboardText(_THIS)
size
GLsizeiptr size
Definition: SDL_opengl_glext.h:537
SDL_TRUE
@ SDL_TRUE
Definition: SDL_stdinc.h:164
WIN_SetError
int WIN_SetError(const char *prefix)
WIN_StringToUTF8
#define WIN_StringToUTF8(S)
Definition: SDL_windows.h:46
ITfSourceVtbl::DWORD
IUnknown DWORD DWORD
Definition: SDL_msctf.h:234
SDL_strdup
#define SDL_strdup
Definition: SDL_dynapi_overrides.h:397
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SDL_VideoData
Definition: SDL_androidvideo.h:36
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:161
SDL_VideoDevice::windows
SDL_Window * windows
Definition: SDL_sysvideo.h:317