4df7511b18
are allowed. Warning: untested on WIN32 (although it seems likely that it will work). git-svn-id: file:///fltk/svn/fltk/trunk@349 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
134 lines
3.9 KiB
C++
134 lines
3.9 KiB
C++
//
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// "$Id: Fl_cutpaste_win32.cxx,v 1.5 1999/03/02 07:03:15 bill Exp $"
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//
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// WIN32 cut/paste for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-1999 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems to "fltk-bugs@easysw.com".
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//
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// Implementation of cut and paste.
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// This is seperated from Fl.C mostly to test Fl::add_handler().
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// But this will save a small amount of code size in a program that
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// has no text editing fields or other things that call cut or paste.
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#include <FL/Fl.H>
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#include <FL/x.H>
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#include <FL/Fl_Widget.H>
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#include <string.h>
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static char *selection_buffer;
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static int selection_length;
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static int selection_buffer_length;
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static char beenhere;
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extern Fl_Widget *fl_selection_requestor; // widget doing request_paste()
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static int selection_xevent_handler(int) {
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switch (fl_msg.message) {
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case WM_DESTROYCLIPBOARD:
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Fl::selection_owner(0);
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Fl::flush(); // get the redraw to happen
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return 1;
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case WM_RENDERALLFORMATS:
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if (!OpenClipboard(fl_xid(Fl::first_window()))) return 0;
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EmptyClipboard();
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// fall through...
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case WM_RENDERFORMAT: {
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HANDLE h = GlobalAlloc(GHND, selection_length+1);
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if (h) {
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LPSTR p = (LPSTR)GlobalLock(h);
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memcpy(p, selection_buffer, selection_length);
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p[selection_length] = 0;
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GlobalUnlock(h);
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SetClipboardData(CF_TEXT, h);
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}
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if (fl_msg.message == WM_RENDERALLFORMATS)
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CloseClipboard();
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return 1;}
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default:
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return 0;
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}
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}
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////////////////////////////////////////////////////////////////
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// call this when you create a selection:
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void Fl::selection(Fl_Widget &owner, const char *stuff, int len) {
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if (!stuff || len<0) return;
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if (len+1 > selection_buffer_length) {
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delete[] selection_buffer;
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selection_buffer = new char[len+100];
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selection_buffer_length = len+100;
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}
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memcpy(selection_buffer, stuff, len);
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selection_buffer[len] = 0; // needed for direct paste
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selection_length = len;
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if (OpenClipboard(fl_xid(Fl::first_window()))) {
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EmptyClipboard();
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SetClipboardData(CF_TEXT, NULL);
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CloseClipboard();
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if (!beenhere) {
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Fl::add_handler(selection_xevent_handler);
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beenhere = 1;
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}
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}
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selection_owner(&owner);
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}
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////////////////////////////////////////////////////////////////
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// Call this when a "paste" operation happens:
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void Fl::paste(Fl_Widget &receiver) {
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if (selection_owner()) {
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// We already have it, do it quickly without window server.
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// Notice that the text is clobbered if set_selection is
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// called in response to FL_PASTE!
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Fl::e_text = selection_buffer;
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Fl::e_length = selection_length;
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receiver.handle(FL_PASTE);
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} else {
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if (!OpenClipboard(fl_xid(Fl::first_window()))) return;
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HANDLE h = GetClipboardData(CF_TEXT);
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if (h) {
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Fl::e_text = (LPSTR)GlobalLock(h);
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LPSTR a,b;
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a = b = Fl::e_text;
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while (*a) { // strip the CRLF pairs ($%$#@^)
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if (*a == '\r' && a[1] == '\n') a++;
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else *b++ = *a++;
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}
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*b = 0;
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Fl::e_length = b - Fl::e_text;
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receiver.handle(FL_PASTE);
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GlobalUnlock(h);
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}
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CloseClipboard();
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}
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}
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//
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// End of "$Id: Fl_cutpaste_win32.cxx,v 1.5 1999/03/02 07:03:15 bill Exp $".
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//
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