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fltk/src/fl_cursor.cxx
Matthias Melcher 5251b64d57 Changed Copyright in 'src' directory 
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6616 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2009-01-01 21:28:26 +00:00

342 lines
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//
// "$Id$"
//
// Mouse cursor support for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2009 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
// Change the current cursor.
// Under X the cursor is attached to the X window. I tried to hide
// this and pretend that changing the cursor is a drawing function.
// This avoids a field in the Fl_Window, and I suspect is more
// portable to other systems.
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/x.H>
#if !defined(WIN32) && !defined(__APPLE__)
# include <X11/cursorfont.h>
#endif
#include <FL/fl_draw.H>
void fl_cursor(Fl_Cursor c, Fl_Color fg, Fl_Color bg) {
if (Fl::first_window()) Fl::first_window()->cursor(c,fg,bg);
}
/**
Sets the default window cursor as well as its color.
For back compatibility only.
*/
void Fl_Window::default_cursor(Fl_Cursor c, Fl_Color fg, Fl_Color bg) {
// if (c == FL_CURSOR_DEFAULT) c = FL_CURSOR_ARROW;
cursor_default = c;
cursor_fg = fg;
cursor_bg = bg;
cursor(c, fg, bg);
}
#ifdef WIN32
# ifndef IDC_HAND
# define IDC_HAND MAKEINTRESOURCE(32649)
# endif // !IDC_HAND
void Fl_Window::cursor(Fl_Cursor c, Fl_Color c1, Fl_Color c2) {
if (!shown()) return;
// the cursor must be set for the top level window, not for subwindows
Fl_Window *w = window(), *toplevel = this;
while (w) { toplevel = w; w = w->window(); }
if (toplevel != this) { toplevel->cursor(c, c1, c2); return; }
// now set the actual cursor
if (c == FL_CURSOR_DEFAULT) {
c = cursor_default;
}
if (c > FL_CURSOR_NESW) {
i->cursor = 0;
} else if (c == FL_CURSOR_DEFAULT) {
i->cursor = fl_default_cursor;
} else {
LPSTR n;
switch (c) {
case FL_CURSOR_ARROW: n = IDC_ARROW; break;
case FL_CURSOR_CROSS: n = IDC_CROSS; break;
case FL_CURSOR_WAIT: n = IDC_WAIT; break;
case FL_CURSOR_INSERT: n = IDC_IBEAM; break;
case FL_CURSOR_HELP: n = IDC_HELP; break;
case FL_CURSOR_HAND: {
OSVERSIONINFO osvi;
// Get the OS version: Windows 98 and 2000 have a standard
// hand cursor.
memset(&osvi, 0, sizeof(OSVERSIONINFO));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osvi);
if (osvi.dwMajorVersion > 4 ||
(osvi.dwMajorVersion == 4 && osvi.dwMinorVersion > 0 &&
osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)) n = IDC_HAND;
else n = IDC_UPARROW;
} break;
case FL_CURSOR_MOVE: n = IDC_SIZEALL; break;
case FL_CURSOR_N:
case FL_CURSOR_S:
case FL_CURSOR_NS: n = IDC_SIZENS; break;
case FL_CURSOR_NE:
case FL_CURSOR_SW:
case FL_CURSOR_NESW: n = IDC_SIZENESW; break;
case FL_CURSOR_E:
case FL_CURSOR_W:
case FL_CURSOR_WE: n = IDC_SIZEWE; break;
case FL_CURSOR_SE:
case FL_CURSOR_NW:
case FL_CURSOR_NWSE: n = IDC_SIZENWSE; break;
default: n = IDC_NO; break;
}
i->cursor = LoadCursor(NULL, n);
}
SetCursor(i->cursor);
}
#elif defined(__APPLE__)
#ifdef __BIG_ENDIAN__
# define E(x) x
#elif defined __LITTLE_ENDIAN__
// Don't worry. This will be resolved at compile time
# define E(x) (x>>8)|((x<<8)&0xff00)
#else
# error "Either __LITTLE_ENDIAN__ or __BIG_ENDIAN__ must be defined"
#endif
static Cursor crsrHAND =
{
{ E(0x0600), E(0x0900), E(0x0900), E(0x0900), E(0x09C0), E(0x0938), E(0x6926), E(0x9805),
E(0x8801), E(0x4801), E(0x2002), E(0x2002), E(0x1004), E(0x0804), E(0x0408), E(0x0408) },
{ E(0x0600), E(0x0F00), E(0x0F00), E(0x0F00), E(0x0FC0), E(0x0FF8), E(0x6FFE), E(0xFFFF),
E(0xFFFF), E(0x7FFF), E(0x3FFE), E(0x3FFE), E(0x1FFC), E(0x0FFC), E(0x07F8), E(0x07F8) },
{ 1, 5 } // Hotspot: ( y, x )
}, *crsrHANDptr = &crsrHAND;
static Cursor crsrHELP =
{
{ E(0x0000), E(0x4000), E(0x6000), E(0x7000), E(0x783C), E(0x7C7E), E(0x7E66), E(0x7F06),
E(0x7F8C), E(0x7C18), E(0x6C18), E(0x4600), E(0x0618), E(0x0318), E(0x0300), E(0x0000) },
{ E(0xC000), E(0xE000), E(0xF000), E(0xF83C), E(0xFC7E), E(0xFEFF), E(0xFFFF), E(0xFFFF),
E(0xFFFE), E(0xFFFC), E(0xFE3C), E(0xEF3C), E(0xCF3C), E(0x07BC), E(0x0798), E(0x0380) },
{ 1, 1 }
}, *crsrHELPptr = &crsrHELP;
static Cursor crsrMOVE =
{
{ E(0x0000), E(0x0180), E(0x03C0), E(0x07E0), E(0x07E0), E(0x1998), E(0x399C), E(0x7FFE),
E(0x7FFE), E(0x399C), E(0x1998), E(0x07E0), E(0x07E0), E(0x03C0), E(0x0180), E(0x0000) },
{ E(0x0180), E(0x03C0), E(0x07E0), E(0x0FF0), E(0x1FF8), E(0x3FFC), E(0x7FFE), E(0xFFFF),
E(0xFFFF), E(0x7FFE), E(0x3FFC), E(0x1FF8), E(0x0FF0), E(0x07E0), E(0x03C0), E(0x0180) },
{ 8, 8 }
}, *crsrMOVEptr = &crsrMOVE;
static Cursor crsrNS =
{
{ E(0x0000), E(0x0180), E(0x03C0), E(0x07E0), E(0x0FF0), E(0x0180), E(0x0180), E(0x0180),
E(0x0180), E(0x0180), E(0x0180), E(0x0FF0), E(0x07E0), E(0x03C0), E(0x0180), E(0x0000) },
{ E(0x0180), E(0x03C0), E(0x07E0), E(0x0FF0), E(0x1FF8), E(0x1FF8), E(0x03C0), E(0x03C0),
E(0x03C0), E(0x03C0), E(0x1FF8), E(0x1FF8), E(0x0FF0), E(0x07E0), E(0x03C0), E(0x0180) },
{ 8, 8 }
}, *crsrNSptr = &crsrNS;
static Cursor crsrWE =
{
{ E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0810), E(0x1818), E(0x381C), E(0x7FFE),
E(0x7FFE), E(0x381C), E(0x1818), E(0x0810), E(0x0000), E(0x0000), E(0x0000), E(0x0000) },
{ E(0x0000), E(0x0000), E(0x0000), E(0x0C30), E(0x1C38), E(0x3C3C), E(0x7FFE), E(0xFFFF),
E(0xFFFF), E(0x7FFE), E(0x3C3C), E(0x1C38), E(0x0C30), E(0x0000), E(0x0000), E(0x0000) },
{ 8, 8 }
}, *crsrWEptr = &crsrWE;
static Cursor crsrNWSE =
{
{ E(0x0000), E(0x7E00), E(0x7C00), E(0x7800), E(0x7C00), E(0x6E00), E(0x4710), E(0x03B0),
E(0x01F0), E(0x00F0), E(0x01F0), E(0x03F0), E(0x0000), E(0x0000), E(0x0000), E(0x0000) },
{ E(0xFF00), E(0xFF00), E(0xFE00), E(0xFC00), E(0xFE00), E(0xFF18), E(0xEFB8), E(0xC7F8),
E(0x03F8), E(0x01F8), E(0x03F8), E(0x07F8), E(0x07F8), E(0x0000), E(0x0000), E(0x0000) },
{ 8, 8 }
}, *crsrNWSEptr = &crsrNWSE;
static Cursor crsrNESW =
{
{ E(0x0000), E(0x03F0), E(0x01F0), E(0x00F0), E(0x01F0), E(0x03B0), E(0x4710), E(0x6E00),
E(0x7C00), E(0x7800), E(0x7C00), E(0x7E00), E(0x0000), E(0x0000), E(0x0000), E(0x0000) },
{ E(0x07F8), E(0x07F8), E(0x03F8), E(0x01F8), E(0x03F8), E(0xC7F8), E(0xEFB8), E(0xFF18),
E(0xFE00), E(0xFC00), E(0xFE00), E(0xFF00), E(0xFF00), E(0x0000), E(0x0000), E(0x0000) },
{ 8, 8 }
}, *crsrNESWptr = &crsrNESW;
static Cursor crsrNONE =
{
{ E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000),
E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000) },
{ E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000),
E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000), E(0x0000) },
{ 0, 0 }
}, *crsrNONEptr = &crsrNONE;
static Cursor crsrARROW =
{
{ E(0x0000), E(0x4000), E(0x6000), E(0x7000), E(0x7800), E(0x7C00), E(0x7E00), E(0x7F00),
E(0x7F80), E(0x7C00), E(0x6C00), E(0x4600), E(0x0600), E(0x0300), E(0x0300), E(0x0000) },
{ E(0xC000), E(0xE000), E(0xF000), E(0xF800), E(0xFC00), E(0xFE00), E(0xFF00), E(0xFF80),
E(0xFFC0), E(0xFFC0), E(0xFE00), E(0xEF00), E(0xCF00), E(0x0780), E(0x0780), E(0x0380) },
{ 1, 1 }
}, *crsrARROWptr = &crsrARROW;
#undef E
void Fl_Window::cursor(Fl_Cursor c, Fl_Color, Fl_Color) {
if (c == FL_CURSOR_DEFAULT) {
c = cursor_default;
}
CursHandle icrsr = fl_default_cursor;
switch (c) {
case FL_CURSOR_CROSS: icrsr = GetCursor( crossCursor ); break;
case FL_CURSOR_WAIT: icrsr = GetCursor( watchCursor ); break;
case FL_CURSOR_INSERT: icrsr = GetCursor( iBeamCursor ); break;
case FL_CURSOR_N:
case FL_CURSOR_S:
case FL_CURSOR_NS: icrsr = &crsrNSptr; break;
case FL_CURSOR_HELP: icrsr = &crsrHELPptr; break;
case FL_CURSOR_HAND: icrsr = &crsrHANDptr; break;
case FL_CURSOR_MOVE: icrsr = &crsrMOVEptr; break;
case FL_CURSOR_NE:
case FL_CURSOR_SW:
case FL_CURSOR_NESW: icrsr = &crsrNESWptr; break;
case FL_CURSOR_E:
case FL_CURSOR_W:
case FL_CURSOR_WE: icrsr = &crsrWEptr; break;
case FL_CURSOR_SE:
case FL_CURSOR_NW:
case FL_CURSOR_NWSE: icrsr = &crsrNWSEptr; break;
case FL_CURSOR_NONE: icrsr = &crsrNONEptr; break;
case FL_CURSOR_ARROW: icrsr = &crsrARROWptr; break;
case FL_CURSOR_DEFAULT:
default: break;
}
if (icrsr) { // make sure we have a non null icrsr before updating cursor state
SetCursor( *icrsr );
if (i) {
i->cursor = icrsr;
}
}
}
#else
// I like the MSWindows resize cursors, so I duplicate them here:
#define CURSORSIZE 16
#define HOTXY 7
static struct TableEntry {
uchar bits[CURSORSIZE*CURSORSIZE/8];
uchar mask[CURSORSIZE*CURSORSIZE/8];
Cursor cursor;
} table[] = {
{{ // FL_CURSOR_NS
0x00, 0x00, 0x80, 0x01, 0xc0, 0x03, 0xe0, 0x07, 0x80, 0x01, 0x80, 0x01,
0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01,
0xe0, 0x07, 0xc0, 0x03, 0x80, 0x01, 0x00, 0x00},
{
0x80, 0x01, 0xc0, 0x03, 0xe0, 0x07, 0xf0, 0x0f, 0xf0, 0x0f, 0xc0, 0x03,
0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03, 0xf0, 0x0f,
0xf0, 0x0f, 0xe0, 0x07, 0xc0, 0x03, 0x80, 0x01}},
{{ // FL_CURSOR_EW
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x10,
0x0c, 0x30, 0xfe, 0x7f, 0xfe, 0x7f, 0x0c, 0x30, 0x08, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x1c, 0x38,
0xfe, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0x1c, 0x38, 0x18, 0x18,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
{{ // FL_CURSOR_NWSE
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x38, 0x00, 0x78, 0x00,
0xe8, 0x00, 0xc0, 0x01, 0x80, 0x03, 0x00, 0x17, 0x00, 0x1e, 0x00, 0x1c,
0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{
0x00, 0x00, 0x00, 0x00, 0xfc, 0x00, 0xfc, 0x00, 0x7c, 0x00, 0xfc, 0x00,
0xfc, 0x01, 0xec, 0x03, 0xc0, 0x37, 0x80, 0x3f, 0x00, 0x3f, 0x00, 0x3e,
0x00, 0x3f, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x00}},
{{ // FL_CURSOR_NESW
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x1c, 0x00, 0x1e,
0x00, 0x17, 0x80, 0x03, 0xc0, 0x01, 0xe8, 0x00, 0x78, 0x00, 0x38, 0x00,
0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x00, 0x3f, 0x00, 0x3e, 0x00, 0x3f,
0x80, 0x3f, 0xc0, 0x37, 0xec, 0x03, 0xfc, 0x01, 0xfc, 0x00, 0x7c, 0x00,
0xfc, 0x00, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00}},
{{0}, {0}} // FL_CURSOR_NONE & unknown
};
void Fl_Window::cursor(Fl_Cursor c, Fl_Color fg, Fl_Color bg) {
if (!shown()) return;
Cursor xc;
int deleteit = 0;
if (c == FL_CURSOR_DEFAULT) {
c = cursor_default;
fg = cursor_fg;
bg = cursor_bg;
}
if (!c) {
xc = None;
} else {
if (c >= FL_CURSOR_NS) {
TableEntry *q = (c > FL_CURSOR_NESW) ? table+4 : table+(c-FL_CURSOR_NS);
if (!(q->cursor)) {
XColor dummy = { 0 };
Pixmap p = XCreateBitmapFromData(fl_display,
RootWindow(fl_display, fl_screen), (const char*)(q->bits),
CURSORSIZE, CURSORSIZE);
Pixmap m = XCreateBitmapFromData(fl_display,
RootWindow(fl_display, fl_screen), (const char*)(q->mask),
CURSORSIZE, CURSORSIZE);
q->cursor = XCreatePixmapCursor(fl_display, p,m,&dummy, &dummy,
HOTXY, HOTXY);
XFreePixmap(fl_display, m);
XFreePixmap(fl_display, p);
}
xc = q->cursor;
} else {
xc = XCreateFontCursor(fl_display, (c-1)*2);
deleteit = 1;
}
XColor fgc;
uchar r,g,b;
Fl::get_color(fg,r,g,b);
fgc.red = r<<8; fgc.green = g<<8; fgc.blue = b<<8;
XColor bgc;
Fl::get_color(bg,r,g,b);
bgc.red = r<<8; bgc.green = g<<8; bgc.blue = b<<8;
XRecolorCursor(fl_display, xc, &fgc, &bgc);
}
XDefineCursor(fl_display, fl_xid(this), xc);
if (deleteit) XFreeCursor(fl_display, xc);
}
#endif
//
// End of "$Id$".
//
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