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List:       kwin
Subject:    [Bug 205597] New: XSetWMNormalHints ( .. PResizeInc ) shrinks the
From:       Werner Heisch <scm () heisch ! inka ! de>
Date:       2009-08-29 15:48:10
Message-ID: bug-205597-4790 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=205597

           Summary: XSetWMNormalHints ( .. PResizeInc ) shrinks the window
           Product: kwin
           Version: unspecified
          Platform: SuSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kwin@kde.org
        ReportedBy: scm@heisch.inka.de


Version:            (using KDE 4.3.0)
Compiler:          gcc 4.3.34 
OS:                Linux
Installed from:    SuSE RPMs

If XSetWMNormalHints  manipulate  PResizeInc, the window shrinks.
Normally, it should not change, onla the grif for next manual resize should be
set.

This is a demonstration program:

// List:       kwin
// kore of this example was stolen from
// Subject:    [Bug 120353] New: XSetWMNormalHints / PMaxSize doesn't work
correctly
// From:       dmitry from spb <hail () pochtamt ! ru>
// Version:           KWin 3.0 (using KDE 3.5.10)
// Installed from:    Opensuse 11.1
// OS:                Linux

// Please, run the attached test case.

// 1. You will see the simple window.
// 2. You will see, how the window. is shrinking.

// SOURCE CODE
// ===============================
// gcc X11-Grid.c -L /usr/X11R6/lib -l X11

#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <stdio.h>
#define BORDER_WIDTH 2


/* Program wide globals */
Display *theDisplay;
int theScreen;
int theDepth;

XSizeHints theSizeHints;



Window OpenWindow(int x, int y, int width, int height, int flag) {

        XSetWindowAttributes theWindowAttributes;
        unsigned long theWindowMask;
        XWMHints theWMHints;
        Window theNewWindow;

long supplied_return;

        /*Setting the attributes*/
        theWindowAttributes.border_pixel
                =BlackPixel(theDisplay,theScreen);
        theWindowAttributes.background_pixel
                = WhitePixel(theDisplay,theScreen);
        theWindowAttributes.override_redirect = False;

        theWindowMask = CWBackPixel|CWBorderPixel|CWOverrideRedirect;

        theNewWindow = XCreateWindow( theDisplay,
                        RootWindow(theDisplay,theScreen),
                        x,y,width,height,
                        BORDER_WIDTH,theDepth,
                        InputOutput,
                        CopyFromParent,
                        theWindowMask,
                        &theWindowAttributes);


        theWMHints.initial_state = NormalState;
        theWMHints.flags = StateHint;


        XSetWMHints(theDisplay,theNewWindow,&theWMHints);


    theSizeHints.flags = PPosition | PSize | PMaxSize | PResizeInc;

        theSizeHints.x = x;
        theSizeHints.y = y;
        theSizeHints.width = width;
        theSizeHints.height = height;

    theSizeHints.max_width = 1000;
    theSizeHints.max_height = 800;
    theSizeHints.width_inc = 10;
    theSizeHints.height_inc = 10;

        XSetWMNormalHints(theDisplay,theNewWindow,&theSizeHints);

        XMapWindow(theDisplay,theNewWindow);
        XFlush(theDisplay);

        return theNewWindow;
}


int main(void){

        Window theWindow;

        int i;

        theDisplay = XOpenDisplay(NULL);

        theScreen = DefaultScreen(theDisplay);
        theDepth = DefaultDepth(theDisplay,theScreen);

        theWindow = OpenWindow(150,150,500,500,0);
        XFlush(theDisplay);

/* here, the window is shrinking  */

        for (i=0;i<20;i++) {

        usleep(100000L);
        theSizeHints.flags |= PResizeInc;
        theSizeHints.width_inc = 10+i;
        theSizeHints.height_inc = 10+i;
            XSetWMNormalHints(theDisplay,theWindow,&theSizeHints);

            XMapWindow(theDisplay,theWindow);
            XFlush(theDisplay);
        }

        sleep(2);
        XDestroyWindow(theDisplay,theWindow);
}

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