X11Module.h

#pragma once
#if defined( __linux__ )
 
#include "Module.h"
 
#include <map>
 
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>
 
namespace Cogs {
  class X11Module : public Module {
  public:
    static X11Module& instance();
    virtual void initPtrs() override;
 
    Status (*XInitThreads)();
 
    Display* XOpenDisplay(const char* displayName);
    void XCloseDisplay(Display* /*display*/) {}
 
    ::Window (*XCreateWindow)(Display* display, ::Window parent, int x, int y, unsigned int width, unsigned int height, unsigned int borderWidth, int depth, unsigned int cls, Visual* visual, unsigned long valueMask, XSetWindowAttributes* attributes);
    int (*XDestroyWindow)(Display* display, ::Window w);
    int (*XMapWindow)(Display* display, ::Window w);
    int (*XUnmapWindow)(Display* display, ::Window w);
    Status (*XIconifyWindow)(Display* display, ::Window w, int screenNumber);
    int (*XMoveWindow)(Display* display, ::Window w, int x, int y);
    int (*XResizeWindow)(Display* display, ::Window w, unsigned int width, unsigned int height);
    Status (*XGetWindowAttributes)(Display* display, ::Window w, XWindowAttributes* attributes);
    int (*XGetWindowProperty)(Display *display, ::Window w, Atom property, long offset, long length, Bool del, Atom requiredType, Atom* actualType, int* actualFormat, unsigned long* itemCount, unsigned long* bytesAfter, unsigned char** returnedProperty);
    Status (*XQueryTree)(Display* display, ::Window w, ::Window* root, ::Window* parent, ::Window** children, unsigned int* noofchildren);
 
    Colormap (*XCreateColormap)(Display* display, ::Window w, Visual* visual, int alloc);
    int (*XFreeColormap)(Display* display, Colormap colorMap);
 
    int (*XPending)(Display* display);
    Status (*XSendEvent)(Display* display, ::Window w, Bool propagate, long eventMask, XEvent* eventSend);
    int (*XNextEvent)(Display* display, XEvent* eventReturn);
    Bool (*XFilterEvent)(XEvent* event, ::Window w);
 
    int (*XSync)(Display*       display, Bool   discard);
    int (*XFree)(void* data);
 
    Atom (*XInternAtom)(Display* display, const char* atomName, Bool onlyIfExists);
    int (*XStoreName)(Display* display, ::Window win, const char* windowName);
 
    int (*XScreenNumberOfScreen)(Screen*);
 
    KeySym (*XkbKeycodeToKeysym)(Display* display, KeyCode kc, unsigned int group, unsigned int level);
    Status (*XSetWMProtocols)(Display* display, ::Window w, Atom* protocols, int count);
    int (*XSelectInput)(Display* display, ::Window w, long eventMask);
    int (*XRefreshKeyboardMapping)(XMappingEvent* eventMap);
    XIM (*XOpenIM)(Display *display, XrmDatabase db, char* res_name, char* res_class);
    Status (*XCloseIM)(XIM im);
    char* (*XGetIMValues)(XIM im, ...);
    XIC (*XCreateIC)(XIM im, ...);
    void (*XDestroyIC)(XIC ic);
    void (*XSetICFocus)(XIC ic);
    int (*Xutf8LookupString)(XIC ic, XKeyPressedEvent* event, char* buffer_return, int bytes_buffer, KeySym* keysym_return, Status* status_return);
    Bool (*XSupportsLocale)();
    char* (*XSetLocaleModifiers)(char* modifier_list);
 
    int (*XSetSelectionOwner)(Display* display, Atom selection, ::Window owner, Time time);
    ::Window (*XGetSelectionOwner)(Display* display, Atom selection);
    int (*XConvertSelection)(Display* display, Atom selection, Atom target, Atom property, ::Window requestor, Time time);
 
    int (*XChangeProperty)(Display *display, ::Window w, Atom property, Atom type, int format, int mode, unsigned char* data, int nelements);
    int (*XDeleteProperty)(Display *display, ::Window w, Atom property);
 
  private:
    std::map<std::string, Display*> cachedDisplays;
 
    Display* (*XOpenDisplayFn)(const char* displayName);
    int (*XCloseDisplayFn)(Display* display);
  };
}
 
#undef Always
#undef Bool
#undef False
#undef None
#undef Status
#undef Success
#undef True
 
#endif