diff options
Diffstat (limited to 'src/glut/glx/glut_cursor.c')
| -rw-r--r-- | src/glut/glx/glut_cursor.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/src/glut/glx/glut_cursor.c b/src/glut/glx/glut_cursor.c deleted file mode 100644 index 797cb49fb09..00000000000 --- a/src/glut/glx/glut_cursor.c +++ /dev/null @@ -1,201 +0,0 @@ - -/* Copyright (c) Mark J. Kilgard, 1995, 1998. */ - -/* This program is freely distributable without licensing fees - and is provided without guarantee or warrantee expressed or - implied. This program is -not- in the public domain. */ - -#include "glutint.h" - -#if !defined(_WIN32) -#include <X11/Xatom.h> /* For XA_CURSOR */ -#include <X11/cursorfont.h> -#endif - -typedef struct _CursorTable { -#if defined(_WIN32) - char* glyph; -#else - int glyph; -#endif - Cursor cursor; -} CursorTable; -/* *INDENT-OFF* */ - -static CursorTable cursorTable[] = { - {XC_arrow, None}, /* GLUT_CURSOR_RIGHT_ARROW */ - {XC_top_left_arrow, None}, /* GLUT_CURSOR_LEFT_ARROW */ - {XC_hand1, None}, /* GLUT_CURSOR_INFO */ - {XC_pirate, None}, /* GLUT_CURSOR_DESTROY */ - {XC_question_arrow, None}, /* GLUT_CURSOR_HELP */ - {XC_exchange, None}, /* GLUT_CURSOR_CYCLE */ - {XC_spraycan, None}, /* GLUT_CURSOR_SPRAY */ - {XC_watch, None}, /* GLUT_CURSOR_WAIT */ - {XC_xterm, None}, /* GLUT_CURSOR_TEXT */ - {XC_crosshair, None}, /* GLUT_CURSOR_CROSSHAIR */ - {XC_sb_v_double_arrow, None}, /* GLUT_CURSOR_UP_DOWN */ - {XC_sb_h_double_arrow, None}, /* GLUT_CURSOR_LEFT_RIGHT */ - {XC_top_side, None}, /* GLUT_CURSOR_TOP_SIDE */ - {XC_bottom_side, None}, /* GLUT_CURSOR_BOTTOM_SIDE */ - {XC_left_side, None}, /* GLUT_CURSOR_LEFT_SIDE */ - {XC_right_side, None}, /* GLUT_CURSOR_RIGHT_SIDE */ - {XC_top_left_corner, None}, /* GLUT_CURSOR_TOP_LEFT_CORNER */ - {XC_top_right_corner, None}, /* GLUT_CURSOR_TOP_RIGHT_CORNER */ - {XC_bottom_right_corner, None}, /* GLUT_CURSOR_BOTTOM_RIGHT_CORNER */ - {XC_bottom_left_corner, None}, /* GLUT_CURSOR_BOTTOM_LEFT_CORNER */ -}; -/* *INDENT-ON* */ - -#if !defined(_WIN32) -static Cursor blankCursor = None; -static Cursor fullCrosshairCusor = None; - -/* SGI X server's support a special property called the - _SGI_CROSSHAIR_CURSOR that when installed as a window's - cursor, becomes a full screen crosshair cursor. SGI - has special cursor generation hardware for this case. */ -static Cursor -getFullCrosshairCursor(void) -{ - Cursor cursor; - Atom crosshairAtom, actualType; - int rc, actualFormat; - unsigned long n, left; - unsigned char *value; - - if (fullCrosshairCusor == None) { - crosshairAtom = XInternAtom(__glutDisplay, - "_SGI_CROSSHAIR_CURSOR", True); - if (crosshairAtom != None) { - value = 0; /* Make compiler happy. */ - rc = XGetWindowProperty(__glutDisplay, __glutRoot, - crosshairAtom, 0, 1, False, XA_CURSOR, &actualType, - &actualFormat, &n, &left, &value); - if (rc == Success && actualFormat == 32 && n >= 1) { - cursor = ((unsigned long *)value)[0]; - XFree(value); - return cursor; - } - } - } - return XCreateFontCursor(__glutDisplay, XC_crosshair); -} - -/* X11 forces you to create a blank cursor if you want - to disable the cursor. */ -static Cursor -makeBlankCursor(void) -{ - static char data[1] = - {0}; - Cursor cursor; - Pixmap blank; - XColor dummy; - - blank = XCreateBitmapFromData(__glutDisplay, __glutRoot, - data, 1, 1); - if (blank == None) - __glutFatalError("out of memory."); - cursor = XCreatePixmapCursor(__glutDisplay, blank, blank, - &dummy, &dummy, 0, 0); - XFreePixmap(__glutDisplay, blank); - - return cursor; -} -#endif /* !_WIN32 */ - -/* Win32 and X11 use this same function to accomplish - fairly different tasks. X11 lets you just define the - cursor for a window and the window system takes care - of making sure that the window's cursor is installed - when the mouse is in the window. Win32 requires the - application to handle a WM_SETCURSOR message to install - the right cursor when windows are entered. Think of - the Win32 __glutSetCursor (called from __glutWindowProc) - as "install cursor". Think of the X11 __glutSetCursor - (called from glutSetCursor) as "define cursor". */ -void -__glutSetCursor(GLUTwindow *window) -{ - int cursor = window->cursor; - Cursor xcursor = 0; - - if (cursor >= 0 && - cursor < sizeof(cursorTable) / sizeof(cursorTable[0])) { - if (cursorTable[cursor].cursor == None) { - cursorTable[cursor].cursor = XCreateFontCursor(__glutDisplay, - cursorTable[cursor].glyph); - } - xcursor = cursorTable[cursor].cursor; - } else { - /* Special cases. */ - switch (cursor) { - case GLUT_CURSOR_INHERIT: -#if defined(_WIN32) - while (window->parent) { - window = window->parent; - if (window->cursor != GLUT_CURSOR_INHERIT) { - __glutSetCursor(window); - return; - } - } - /* XXX Default to an arrow cursor. Is this - right or should we be letting the default - window proc be installing some system cursor? */ - xcursor = cursorTable[0].cursor; - if (xcursor == NULL) { - xcursor = - cursorTable[0].cursor = - LoadCursor(NULL, cursorTable[0].glyph); - } -#else - xcursor = None; -#endif - break; - case GLUT_CURSOR_NONE: -#if defined(_WIN32) - xcursor = NULL; -#else - if (blankCursor == None) { - blankCursor = makeBlankCursor(); - } - xcursor = blankCursor; -#endif - break; - case GLUT_CURSOR_FULL_CROSSHAIR: -#if defined(_WIN32) - xcursor = (HICON) IDC_CROSS; -#else - if (fullCrosshairCusor == None) { - fullCrosshairCusor = getFullCrosshairCursor(); - } - xcursor = fullCrosshairCusor; -#endif - break; - } - } - XDefineCursor(__glutDisplay, - window->win, xcursor); - XFlush(__glutDisplay); -} - -/* CENTRY */ -void GLUTAPIENTRY -glutSetCursor(int cursor) -{ -#ifdef _WIN32 - POINT point; - - __glutCurrentWindow->cursor = cursor; - /* Are we in the window right now? If so, - install the cursor. */ - GetCursorPos(&point); - if (__glutCurrentWindow->win == WindowFromPoint(point)) { - __glutSetCursor(__glutCurrentWindow); - } -#else - __glutCurrentWindow->cursor = cursor; - __glutSetCursor(__glutCurrentWindow); -#endif -} -/* ENDCENTRY */ |