X11: ICCCM (4) - ウィンドウ構成

Bool XTranslateCoordinates(Display *display, Window src_w, Window dest_w,
    int src_x, int src_y,
    int *dest_x_return, int *dest_y_return, Window *child_return);

$ cc -o run d05-configure.c util.c -lX11

#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "util.h"

int g_gravity[3] = {NorthWestGravity, SouthEastGravity, StaticGravity};
const char *g_names[3] = {"NorthWest", "SouthEast", "Static"};

static void _set_wm_hints(Display *disp,Window win,int gravity)
{
    XSizeHints sh;

    sh.flags = PWinGravity;
    sh.win_gravity = gravity;

    XSetWMNormalHints(disp, win, &sh);
}

static void _get_winpos(Display *disp,Window win)
{
    int x,y;
    Window child;

    if(XTranslateCoordinates(disp, win, DefaultRootWindow(disp),
        0, 0, &x, &y, &child))
    {
        printf("* position: x(%d) y(%d)\n", x, y);
    }
}

int main(int argc,char **argv)
{
    Display *disp;
    Window win;
    XEvent ev;
    int cur = -1;
    
    disp = XOpenDisplay(NULL);
    if(!disp) return 1;

    win = create_test_window(disp,
        ButtonPressMask | StructureNotifyMask);

    //イベント

    XMapWindow(disp, win);

    while(1)
    {
        XNextEvent(disp, &ev);

        switch(ev.type)
        {
            case ButtonPress:
                if(ev.xbutton.button != Button1) goto END;

                cur++;
                if(cur > 2) cur = 0;

                printf("* gravity: %s\n", g_names[cur]);

                _set_wm_hints(disp, win, g_gravity[cur]);

                XMoveWindow(disp, win, 0, 0);

                XMoveWindow(disp, win, 300, 300);

                _get_winpos(disp, win);
                break;
            case ConfigureNotify:
                printf("[Configure] send_event(%d) x(%d) y(%d)\n",
                    ev.xconfigure.send_event, ev.xconfigure.x, ev.xconfigure.y);
                break;
        }
    }

END:
    XCloseDisplay(disp);

    return 0;
}