Experimental option to allow moving the mouse outside the view, "Continuous Grab...
[blender.git] / intern / ghost / intern / GHOST_WindowX11.cpp
index f9774b6df70233acf516dfafcc2a5107a2853c3a..c2dc1048ea0db362f1d9db5f67ababe2ef25caca 100644 (file)
@@ -42,6 +42,9 @@
 #include <cstring>
 #include <cstdio>
 
+#include <algorithm>
+#include <string>
+
 // For obscure full screen mode stuuf
 // lifted verbatim from blut.
 
@@ -291,7 +294,7 @@ GHOST_WindowX11(
        }
        
        // Create some hints for the window manager on how
-       // we want this window treated. 
+       // we want this window treated.
 
        XSizeHints * xsizehints = XAllocSizeHints();
        xsizehints->flags = USPosition | USSize;
@@ -411,6 +414,100 @@ static int ApplicationErrorHandler(Display *display, XErrorEvent *theEvent) {
        return 0 ;
 }
 
+/* These C functions are copied from Wine 1.1.13's wintab.c */
+#define BOOL int
+#define TRUE 1
+#define FALSE 0
+
+static bool match_token(const char *haystack, const char *needle)
+{
+       const char *p, *q;
+       for (p = haystack; *p; )
+       {
+               while (*p && isspace(*p))
+                       p++;
+               if (! *p)
+                       break;
+
+               for (q = needle; *q && *p && tolower(*p) == tolower(*q); q++)
+                       p++;
+               if (! *q && (isspace(*p) || !*p))
+                       return TRUE;
+
+               while (*p && ! isspace(*p))
+                       p++;
+       }
+       return FALSE;
+}
+
+/*     Determining if an X device is a Tablet style device is an imperfect science.
+**  We rely on common conventions around device names as well as the type reported
+**  by Wacom tablets.  This code will likely need to be expanded for alternate tablet types
+**
+**     Wintab refers to any device that interacts with the tablet as a cursor,
+**  (stylus, eraser, tablet mouse, airbrush, etc)
+**  this is not to be confused with wacom x11 configuration "cursor" device.
+**  Wacoms x11 config "cursor" refers to its device slot (which we mirror with
+**  our gSysCursors) for puck like devices (tablet mice essentially).
+*/
+#if 0 // unused
+static BOOL is_tablet_cursor(const char *name, const char *type)
+{
+       int i;
+       static const char *tablet_cursor_whitelist[] = {
+               "wacom",
+               "wizardpen",
+               "acecad",
+               "tablet",
+               "cursor",
+               "stylus",
+               "eraser",
+               "pad",
+               NULL
+       };
+
+       for (i=0; tablet_cursor_whitelist[i] != NULL; i++) {
+               if (name && match_token(name, tablet_cursor_whitelist[i]))
+                       return TRUE;
+               if (type && match_token(type, tablet_cursor_whitelist[i]))
+                       return TRUE;
+       }
+       return FALSE;
+}
+#endif
+static BOOL is_stylus(const char *name, const char *type)
+{
+       int i;
+       static const char* tablet_stylus_whitelist[] = {
+               "stylus",
+               "wizardpen",
+               "acecad",
+               NULL
+       };
+
+       for (i=0; tablet_stylus_whitelist[i] != NULL; i++) {
+               if (name && match_token(name, tablet_stylus_whitelist[i]))
+                       return TRUE;
+               if (type && match_token(type, tablet_stylus_whitelist[i]))
+                       return TRUE;
+       }
+
+       return FALSE;
+}
+
+static BOOL is_eraser(const char *name, const char *type)
+{
+       if (name && match_token(name, "eraser"))
+               return TRUE;
+       if (type && match_token(type, "eraser"))
+               return TRUE;
+       return FALSE;
+}
+#undef BOOL
+#undef TRUE
+#undef FALSE
+/* end code copied from wine */
+
 void GHOST_WindowX11::initXInputDevices()
 {
        static XErrorHandler old_handler = (XErrorHandler) 0 ;
@@ -420,15 +517,21 @@ void GHOST_WindowX11::initXInputDevices()
                if(version->present) {
                        int device_count;
                        XDeviceInfo* device_info = XListInputDevices(m_display, &device_count);
-                       m_xtablet.StylusDevice = 0;
-                       m_xtablet.EraserDevice = 0;
-                       m_xtablet.CommonData.Active= 0;
+                       m_xtablet.StylusDevice = NULL;
+                       m_xtablet.EraserDevice = NULL;
+                       m_xtablet.CommonData.Active= GHOST_kTabletModeNone;
 
                        /* Install our error handler to override Xlib's termination behavior */
                        old_handler = XSetErrorHandler(ApplicationErrorHandler) ;
 
                        for(int i=0; i<device_count; ++i) {
-                               if(!strcasecmp(device_info[i].name, "stylus")) {
+                               char *device_type = device_info[i].type ? XGetAtomName(m_display, device_info[i].type) : NULL;
+                               
+//                             printf("Tablet type:'%s', name:'%s', index:%d\n", device_type, device_info[i].name, i);
+
+
+                               if(m_xtablet.StylusDevice==NULL && is_stylus(device_info[i].name, device_type)) {
+//                                     printf("\tfound stylus\n");
                                        m_xtablet.StylusID= device_info[i].id;
                                        m_xtablet.StylusDevice = XOpenDevice(m_display, m_xtablet.StylusID);
 
@@ -437,6 +540,7 @@ void GHOST_WindowX11::initXInputDevices()
                                                XAnyClassPtr ici = device_info[i].inputclassinfo;
                                                for(int j=0; j<m_xtablet.StylusDevice->num_classes; ++j) {
                                                        if(ici->c_class==ValuatorClass) {
+//                                                             printf("\t\tfound ValuatorClass\n");
                                                                XValuatorInfo* xvi = (XValuatorInfo*)ici;
                                                                m_xtablet.PressureLevels = xvi->axes[2].max_value;
                                                        
@@ -453,11 +557,16 @@ void GHOST_WindowX11::initXInputDevices()
                                                m_xtablet.StylusID= 0;
                                        }
                                }
-                               if(!strcasecmp(device_info[i].name, "eraser")) {
+                               else if(m_xtablet.EraserDevice==NULL && is_eraser(device_info[i].name, device_type)) {
+//                                     printf("\tfound eraser\n");
                                        m_xtablet.EraserID= device_info[i].id;
                                        m_xtablet.EraserDevice = XOpenDevice(m_display, m_xtablet.EraserID);
                                        if (m_xtablet.EraserDevice == NULL) m_xtablet.EraserID= 0;
                                }
+
+                               if(device_type) {
+                                       XFree((void*)device_type);
+                               }
                        }
 
                        /* Restore handler */
@@ -498,7 +607,7 @@ GHOST_WindowX11::
 getXWindow(
 ){
        return m_window;
-}      
+}
 
        bool 
 GHOST_WindowX11::
@@ -512,7 +621,17 @@ GHOST_WindowX11::
 setTitle(
        const STR_String& title
 ){
+       Atom name = XInternAtom(m_display, "_NET_WM_NAME", 0);
+       Atom utf8str = XInternAtom(m_display, "UTF8_STRING", 0);
+       XChangeProperty(m_display, m_window,
+                       name, utf8str, 8, PropModeReplace,
+                       (const unsigned char*) title.ReadPtr(),
+                       strlen(title.ReadPtr()));
+
+// This should convert to valid x11 string
+//  and getTitle would need matching change
        XStoreName(m_display,m_window,title);
+
        XFlush(m_display);
 }
 
@@ -1099,6 +1218,13 @@ GHOST_WindowX11::
                XFreeCursor(m_display, m_custom_cursor);
        }
        
+       /* close tablet devices */
+       if(m_xtablet.StylusDevice)
+               XCloseDevice(m_display, m_xtablet.StylusDevice);
+       
+       if(m_xtablet.EraserDevice)
+               XCloseDevice(m_display, m_xtablet.EraserDevice);
+       
        if (m_context) {
                if (m_context == s_firstContext) {
                        s_firstContext = NULL;
@@ -1274,12 +1400,29 @@ setWindowCursorVisibility(
        GHOST_TSuccess
 GHOST_WindowX11::
 setWindowCursorGrab(
-       bool grab
+       bool grab, bool warp
 ){
-       if(grab)
+       if(grab) {
+               if(warp) {
+                       m_system->getCursorPosition(m_cursorWarpInitPos[0], m_cursorWarpInitPos[1]);
+
+                       setCursorWarpAccum(0, 0);
+                       setWindowCursorVisibility(false);
+                       m_cursorWarp= true;
+               }
                XGrabPointer(m_display, m_window, True, ButtonPressMask| ButtonReleaseMask|PointerMotionMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
-       else
+       }
+       else {
+               if(m_cursorWarp) { /* are we exiting warp */
+                       setWindowCursorVisibility(true);
+                       /* Almost works without but important otherwise the mouse GHOST location can be incorrect on exit */
+                       m_system->setCursorPosition(m_cursorWarpInitPos[0], m_cursorWarpInitPos[1]);
+
+                       setCursorWarpAccum(0, 0);
+                       m_cursorWarp= false;
+               }
                XUngrabPointer(m_display, CurrentTime);
+       }
 
        XFlush(m_display);