common/swindow.c

   1 /*
   2  * swindow.c - simple window handling functions
   3  *
   4  * Copyright © 2008 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22
  23 #include "common/swindow.h"
  24 #include "common/util.h"
  25
  26 /** Create a simple window
  27  * \param disp Display ref
  28  * \param phys_screen physical screen id
  29  * \param x x coordinate
  30  * \param y y coordinate
  31  * \param w width
  32  * \param h height
  33  * \param border_width window's border width
  34  * \return pointer to a SimpleWindow
  35  */
  36 SimpleWindow *
  37 simplewindow_new(Display *disp, int phys_screen, int x, int y,
  38                  unsigned int w, unsigned int h,
  39                  unsigned int border_width)
  40 {
  41     XSetWindowAttributes wa;
  42     SimpleWindow *sw;
  43
  44     sw = p_new(SimpleWindow, 1);
  45
  46     sw->geometry.x = x;
  47     sw->geometry.y = y;
  48     sw->geometry.width = w;
  49     sw->geometry.height = h;
  50     sw->display = disp;
  51
  52     wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
  53         | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
  54     wa.override_redirect = 1;
  55     wa.background_pixmap = ParentRelative;
  56     wa.event_mask = ButtonPressMask | ExposureMask;
  57     sw->window = XCreateWindow(disp,
  58                                RootWindow(disp, phys_screen),
  59                                x, y, w, h,
  60                                border_width,
  61                                DefaultDepth(disp, phys_screen),
  62                                CopyFromParent,
  63                                DefaultVisual(disp, phys_screen),
  64                                CWOverrideRedirect | CWBackPixmap | CWEventMask,
  65                                &wa);
  66
  67     sw->drawable = XCreatePixmap(disp,
  68                                  RootWindow(disp, phys_screen),
  69                                  w, h,
  70                                  DefaultDepth(disp, phys_screen));
  71     return sw;
  72 }
  73
  74 /** Destroy a simple window and all its resources
  75  * \param sw the SimpleWindow to delete
  76  */
  77 void
  78 simplewindow_delete(SimpleWindow *sw)
  79 {
  80     XDestroyWindow(sw->display, sw->window);
  81     XFreePixmap(sw->display, sw->drawable);
  82     p_delete(&sw);
  83 }
  84
  85 /** Move a simple window
  86  * \param sw the SimpleWindow to move
  87  * \param x x coordinate
  88  * \param y y coordinate
  89  * \return status
  90  */
  91 int
  92 simplewindow_move(SimpleWindow *sw, int x, int y)
  93 {
  94     sw->geometry.x = x;
  95     sw->geometry.y = y;
  96     return XMoveWindow(sw->display, sw->window, x, y);
  97 }
  98
  99 /** Refresh the window content
 100  * \param sw the SimpleWindow to refresh
 101  * \param phys_screen physical screen id
 102  * \return status
 103  */
 104 int
 105 simplewindow_refresh_drawable(SimpleWindow *sw, int phys_screen)
 106 {
 107     return XCopyArea(sw->display, sw->drawable,
 108                      sw->window,
 109                      DefaultGC(sw->display, phys_screen), 0, 0,
 110                      sw->geometry.width,
 111                      sw->geometry.height,
 112                      0, 0);
 113 }
 114
 115 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80