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xrCore/os_clipboard.cpp: use SDL2 clipboard functions
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Xottab-DUTY committed Jul 24, 2018
1 parent ebba48b commit 896f847
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107 changes: 52 additions & 55 deletions src/xrCore/os_clipboard.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -3,95 +3,92 @@
// Created : 21.02.2008
// Author : Evgeniy Sokolov
// Description : os clipboard class implementation
//
// Modified : 24.07.2018
// Modified by : Xottab_DUTY
////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#pragma hdrstop
#include <SDL.h>
#include "os_clipboard.h"
#include "xrCore/_std_extensions.h"

void os_clipboard::copy_to_clipboard(LPCSTR buf)
void os_clipboard::copy_to_clipboard(pcstr buf)
{
#if defined(WINDOWS)
if (!OpenClipboard(0))
return;
u32 handle_size = (xr_strlen(buf) + 1) * sizeof(char);
HGLOBAL handle = GlobalAlloc(GHND, handle_size);
if (!handle)
if (SDL_SetClipboardText(buf) < 0)
{
CloseClipboard();
return;
Msg("! Failed to copy text to the clipboard: %s", SDL_GetError());
Log(buf);
}

char* memory = (char*)GlobalLock(handle);
xr_strcpy(memory, handle_size, buf);
GlobalUnlock(handle);
EmptyClipboard();
SetClipboardData(CF_TEXT, handle);
CloseClipboard();
#endif
}

void os_clipboard::paste_from_clipboard(LPSTR buffer, u32 const& buffer_size)
void os_clipboard::paste_from_clipboard(pstr buffer, size_t buffer_size)
{
VERIFY(buffer);
VERIFY(buffer_size > 0);
#if defined(WINDOWS)
if (!OpenClipboard(0))

if (!SDL_HasClipboardText())
return;

HGLOBAL hmem = GetClipboardData(CF_TEXT);
if (!hmem)
char* clipData = SDL_GetClipboardText();

if (!clipData)
{
Msg("! Failed to paste text from the clipboard: %s", SDL_GetError());
return;
}

strncpy_s(buffer, buffer_size, clipData, buffer_size - 1);

LPCSTR clipdata = (LPCSTR)GlobalLock(hmem);
strncpy_s(buffer, buffer_size, clipdata, buffer_size - 1);
buffer[buffer_size - 1] = 0;
for (u32 i = 0; i < strlen(buffer); ++i)
for (size_t i = 0; i < xr_strlen(buffer); ++i)
{
char c = buffer[i];
if (((isprint(c) == 0) && (c != char(-1))) || c == '\t' || c == '\n') // "я" = -1
const char c = buffer[i];
if (isprint(c) == 0 && c != char(-1) || c == '\t' || c == '\n') // "я" = -1
{
buffer[i] = ' ';
}
}

GlobalUnlock(hmem);
CloseClipboard();
#endif
SDL_free(clipData);
}

void os_clipboard::update_clipboard(LPCSTR string)
void os_clipboard::update_clipboard(pcstr string)
{
#if defined(WINDOWS)
if (!OpenClipboard(0))
if (!string)
{
Log("! Why are you trying to copy nullptr to the clipboard?!");
return;
}

HGLOBAL handle = GetClipboardData(CF_TEXT);
if (!handle)
if (!SDL_HasClipboardText())
{
CloseClipboard();
copy_to_clipboard(string);
return;
}

LPSTR memory = (LPSTR)GlobalLock(handle);
int memory_length = (int)strlen(memory);
int string_length = (int)strlen(string);
int buffer_size = (memory_length + string_length + 1) * sizeof(char);
#ifndef _EDITOR
LPSTR buffer = (LPSTR)_alloca(buffer_size);
#else // #ifndef _EDITOR
LPSTR buffer = (LPSTR)xr_alloc<char>(buffer_size);
#endif // #ifndef _EDITOR
xr_strcpy(buffer, buffer_size, memory);
GlobalUnlock(handle);

xr_strcat(buffer, buffer_size, string);
CloseClipboard();
char* clipData = SDL_GetClipboardText();

if (!clipData)
{
DEBUG_BREAK;
Msg("! Failed to get text from the clipboard: %s", SDL_GetError());
Log("! Falling back to copy_to_clipboard()");
copy_to_clipboard(string);
return;
}

const size_t clipLength = xr_strlen(clipData);
const size_t stringLength = xr_strlen(string);

const size_t bufferSize = (clipLength + stringLength + 1) * sizeof(char);

pstr buffer = (pstr)_alloca(bufferSize);

xr_strcpy(buffer, bufferSize, clipData); // copy the clipboard
xr_strcat(buffer, bufferSize, string); // copy the new string

SDL_free(clipData);

copy_to_clipboard(buffer);
#ifdef _EDITOR
xr_free(buffer);
#endif // #ifdef _EDITOR
#endif
}
6 changes: 3 additions & 3 deletions src/xrCore/os_clipboard.h
Original file line number Diff line number Diff line change
Expand Up @@ -11,9 +11,9 @@

namespace os_clipboard
{
XRCORE_API void copy_to_clipboard(LPCSTR buf);
XRCORE_API void paste_from_clipboard(LPSTR buf, u32 const& buf_size);
XRCORE_API void update_clipboard(LPCSTR str);
XRCORE_API void copy_to_clipboard(pcstr buf);
XRCORE_API void paste_from_clipboard(pstr buf, size_t buf_size);
XRCORE_API void update_clipboard(pcstr str);
} // namespace os_clipboard

#endif // OS_CLIPBOARD_H_INCLUDED

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