openbox/moveresize.c

   1 #include "grab.h"
   2 #include "framerender.h"
   3 #include "screen.h"
   4 #include "prop.h"
   5 #include "client.h"
   6 #include "dispatch.h"
   7 #include "openbox.h"
   8 #include "popup.h"
   9 #include "render/render.h"
  10 #include "render/theme.h"
  11
  12 #include <X11/Xlib.h>
  13 #include <glib.h>
  14
  15 gboolean moveresize_in_progress = FALSE;
  16 Client *moveresize_client = NULL;
  17
  18 static gboolean moving = FALSE; /* TRUE - moving, FALSE - resizing */
  19
  20 static int start_x, start_y, start_cx, start_cy, start_cw, start_ch;
  21 static int cur_x, cur_y;
  22 static guint button;
  23 static guint32 corner;
  24 static Corner lockcorner;
  25
  26 static guint button_return, button_escape, button_left, button_right,
  27     button_up, button_down;
  28
  29 static Popup *popup = NULL;
  30 static InternalWindow opaque_window = { { Window_Internal }, None };
  31 static GC opaque_gc = None;
  32 static gboolean first_draw = FALSE;
  33
  34 #define POPUP_X (10)
  35 #define POPUP_Y (10)
  36
  37 gboolean config_opaque_move = FALSE;
  38 gboolean config_opaque_resize = FALSE;
  39
  40 void moveresize_startup()
  41 {
  42     XSetWindowAttributes attrib;
  43     XGCValues gcv;
  44
  45     button_return = XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
  46     button_escape = XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
  47     button_left = XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
  48     button_right = XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
  49     button_up = XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
  50     button_down = XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
  51
  52     popup = popup_new(FALSE);
  53     popup_size_to_string(popup, "W:  0000  W:  0000");
  54     popup_position(popup, NorthWestGravity, POPUP_X, POPUP_Y);
  55
  56     attrib.save_under = True;
  57     opaque_window.win = XCreateWindow(ob_display, ob_root, 0, 0, 1, 1, 0,
  58                                       render_depth, InputOutput, render_visual,
  59                                       CWSaveUnder, &attrib);
  60     stacking_add(&opaque_window);
  61     stacking_raise(INTERNAL_AS_WINDOW(&opaque_window));
  62
  63     /* a GC to invert stuff */
  64     gcv.function = GXxor;
  65     gcv.line_width = theme_bwidth;
  66     gcv.foreground = (WhitePixel(ob_display, ob_screen) ^
  67                       BlackPixel(ob_display, ob_screen));
  68     opaque_gc = XCreateGC(ob_display, opaque_window.win,
  69                           GCFunction | GCForeground | GCLineWidth, &gcv);
  70 }
  71
  72 void moveresize_shutdown()
  73 {
  74     popup_free(popup);
  75     popup = NULL;
  76     stacking_remove(&opaque_window);
  77     XFreeGC(ob_display, opaque_gc);
  78     XDestroyWindow(ob_display, opaque_window.win);
  79 }
  80
  81 static void popup_coords(char *format, int a, int b)
  82 {
  83     char *text;
  84
  85     text = g_strdup_printf(format, a, b);
  86     popup_show(popup, text, NULL);
  87     g_free(text);
  88 }
  89
  90 void moveresize_start(Client *c, int x, int y, guint b, guint32 cnr)
  91 {
  92     Cursor cur;
  93
  94     g_assert(!moveresize_in_progress);
  95
  96     moveresize_client = c;
  97     start_cx = c->frame->area.x;
  98     start_cy = c->frame->area.y;
  99     start_cw = c->area.width;
 100     start_ch = c->area.height;
 101     start_x = x;
 102     start_y = y;
 103     if (corner == prop_atoms.net_wm_moveresize_move_keyboard ||
 104         corner == prop_atoms.net_wm_moveresize_size_keyboard)
 105         button = 0; /* mouse can't end it without being pressed first */
 106     else
 107         button = b;
 108     corner = cnr;
 109
 110     if (corner == prop_atoms.net_wm_moveresize_move ||
 111         corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 112         cur_x = start_cx;
 113         cur_y = start_cy;
 114         moving = TRUE;
 115     } else {
 116         cur_x = start_cw;
 117         cur_y = start_ch;
 118         moving = FALSE;
 119     }
 120
 121     moveresize_in_progress = TRUE;
 122
 123     if (corner == prop_atoms.net_wm_moveresize_size_topleft)
 124         cur = ob_cursors.tl;
 125     else if (corner == prop_atoms.net_wm_moveresize_size_top)
 126         cur = ob_cursors.t;
 127     else if (corner == prop_atoms.net_wm_moveresize_size_topright)
 128         cur = ob_cursors.tr;
 129     else if (corner == prop_atoms.net_wm_moveresize_size_right)
 130         cur = ob_cursors.r;
 131     else if (corner == prop_atoms.net_wm_moveresize_size_bottomright)
 132         cur = ob_cursors.br;
 133     else if (corner == prop_atoms.net_wm_moveresize_size_bottom)
 134         cur = ob_cursors.b;
 135     else if (corner == prop_atoms.net_wm_moveresize_size_bottomleft)
 136         cur = ob_cursors.bl;
 137     else if (corner == prop_atoms.net_wm_moveresize_size_left)
 138         cur = ob_cursors.l;
 139     else if (corner == prop_atoms.net_wm_moveresize_size_keyboard)
 140         cur = ob_cursors.br;
 141     else if (corner == prop_atoms.net_wm_moveresize_move)
 142         cur = ob_cursors.move;
 143     else if (corner == prop_atoms.net_wm_moveresize_move_keyboard)
 144         cur = ob_cursors.move;
 145     else
 146         g_assert_not_reached();
 147
 148     grab_pointer(TRUE, cur);
 149     grab_keyboard(TRUE);
 150
 151     XResizeWindow(ob_display, opaque_window.win, screen_physical_size.width,
 152                   screen_physical_size.height);
 153     stacking_raise(INTERNAL_AS_WINDOW(&opaque_window));
 154     if (corner == prop_atoms.net_wm_moveresize_move ||
 155         corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 156         if (!config_opaque_move)
 157             XMapWindow(ob_display, opaque_window.win);
 158     } else {
 159         if (!config_opaque_resize)
 160             XMapWindow(ob_display, opaque_window.win);
 161     }
 162     first_draw = TRUE;
 163 }
 164
 165 void moveresize_end(gboolean cancel)
 166 {
 167     XUnmapWindow(ob_display, opaque_window.win);
 168
 169     grab_keyboard(FALSE);
 170     grab_pointer(FALSE, None);
 171
 172     popup_hide(popup);
 173
 174     if (moving) {
 175         client_configure(moveresize_client, Corner_TopLeft,
 176                          (cancel ? start_cx : cur_x),
 177                          (cancel ? start_cy : cur_y),
 178                          start_cw, start_ch, TRUE, TRUE);
 179     } else {
 180         client_configure(moveresize_client, lockcorner,
 181                          moveresize_client->area.x,
 182                          moveresize_client->area.y,
 183                          (cancel ? start_cw : cur_x),
 184                          (cancel ? start_ch : cur_y), TRUE, TRUE);
 185     }
 186
 187     moveresize_in_progress = FALSE;
 188     moveresize_client = NULL;
 189 }
 190
 191 static void do_move()
 192 {
 193     int oldx, oldy, oldw, oldh;
 194
 195     dispatch_move(moveresize_client, &cur_x, &cur_y);
 196
 197     oldx = moveresize_client->frame->area.x;
 198     oldy = moveresize_client->frame->area.y;
 199     oldw = moveresize_client->frame->area.width;
 200     oldh = moveresize_client->frame->area.height;
 201     /* get where the client should be */
 202     frame_frame_gravity(moveresize_client->frame, &cur_x, &cur_y);
 203     client_configure(moveresize_client, Corner_TopLeft, cur_x, cur_y,
 204                      start_cw, start_ch, TRUE, FALSE);
 205     /* draw the new one */
 206     if (!config_opaque_move)
 207         XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 208                        moveresize_client->frame->area.x,
 209                        moveresize_client->frame->area.y,
 210                        moveresize_client->frame->area.width - 1,
 211                        moveresize_client->frame->area.height - 1);
 212     /* erase the old one */
 213     if (!config_opaque_move && !first_draw)
 214         XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 215                        oldx, oldy, oldw - 1, oldh - 1);
 216     first_draw = FALSE;
 217
 218     /* this would be better with a fixed width font ... XXX can do it better
 219        if there are 2 text boxes */
 220     popup_coords("X:  %4d  Y:  %4d", moveresize_client->frame->area.x,
 221                  moveresize_client->frame->area.y);
 222 }
 223
 224 static void do_resize()
 225 {
 226     int oldx, oldy, oldw, oldh;
 227
 228     /* dispatch_resize needs the frame size */
 229     cur_x += moveresize_client->frame->size.left +
 230         moveresize_client->frame->size.right;
 231     cur_y += moveresize_client->frame->size.top +
 232         moveresize_client->frame->size.bottom;
 233
 234     dispatch_resize(moveresize_client, &cur_x, &cur_y, lockcorner);
 235
 236     cur_x -= moveresize_client->frame->size.left +
 237         moveresize_client->frame->size.right;
 238     cur_y -= moveresize_client->frame->size.top +
 239         moveresize_client->frame->size.bottom;
 240
 241     oldx = moveresize_client->frame->area.x;
 242     oldy = moveresize_client->frame->area.y;
 243     oldw = moveresize_client->frame->area.width;
 244     oldh = moveresize_client->frame->area.height;
 245     client_configure(moveresize_client, lockcorner,
 246                      moveresize_client->area.x, moveresize_client->area.y,
 247                      cur_x, cur_y, TRUE, FALSE);
 248     /* draw the new one */
 249     if (!config_opaque_resize)
 250         XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 251                        moveresize_client->frame->area.x,
 252                        moveresize_client->frame->area.y,
 253                        moveresize_client->frame->area.width - 1,
 254                        moveresize_client->frame->area.height - 1);
 255     /* erase the old one */
 256     if (!config_opaque_resize && !first_draw)
 257         XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 258                        oldx, oldy, oldw - 1, oldh - 1);
 259     first_draw = FALSE;
 260
 261     /* this would be better with a fixed width font ... XXX can do it better
 262        if there are 2 text boxes */
 263     popup_coords("W:  %4d  H:  %4d", moveresize_client->logical_size.width,
 264                  moveresize_client->logical_size.height);
 265 }
 266
 267 void moveresize_event(XEvent *e)
 268 {
 269     g_assert(moveresize_in_progress);
 270
 271     if (e->type == ButtonPress) {
 272         if (!button) {
 273             start_x = e->xbutton.x_root;
 274             start_y = e->xbutton.y_root;
 275             button = e->xbutton.button; /* this will end it now */
 276         }
 277     } else if (e->type == ButtonRelease) {
 278         if (!button || e->xbutton.button == button) {
 279             moveresize_end(FALSE);
 280         }
 281     } else if (e->type == MotionNotify) {
 282         if (moving) {
 283             cur_x = start_cx + e->xmotion.x_root - start_x;
 284             cur_y = start_cy + e->xmotion.y_root - start_y;
 285             do_move();
 286         } else {
 287             if (corner == prop_atoms.net_wm_moveresize_size_topleft) {
 288                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 289                 cur_y = start_ch - (e->xmotion.y_root - start_y);
 290                 lockcorner = Corner_BottomRight;
 291             } else if (corner == prop_atoms.net_wm_moveresize_size_top) {
 292                 cur_x = start_cw;
 293                 cur_y = start_ch - (e->xmotion.y_root - start_y);
 294                 lockcorner = Corner_BottomRight;
 295             } else if (corner == prop_atoms.net_wm_moveresize_size_topright) {
 296                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 297                 cur_y = start_ch - (e->xmotion.y_root - start_y);
 298                 lockcorner = Corner_BottomLeft;
 299             } else if (corner == prop_atoms.net_wm_moveresize_size_right) {
 300                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 301                 cur_y = start_ch;
 302                 lockcorner = Corner_BottomLeft;
 303             } else if (corner ==
 304                        prop_atoms.net_wm_moveresize_size_bottomright) {
 305                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 306                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 307                 lockcorner = Corner_TopLeft;
 308             } else if (corner == prop_atoms.net_wm_moveresize_size_bottom) {
 309                 cur_x = start_cw;
 310                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 311                 lockcorner = Corner_TopLeft;
 312             } else if (corner ==
 313                        prop_atoms.net_wm_moveresize_size_bottomleft) {
 314                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 315                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 316                 lockcorner = Corner_TopRight;
 317             } else if (corner == prop_atoms.net_wm_moveresize_size_left) {
 318                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 319                 cur_y = start_ch;
 320                 lockcorner = Corner_TopRight;
 321             } else if (corner == prop_atoms.net_wm_moveresize_size_keyboard) {
 322                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 323                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 324                 lockcorner = Corner_TopLeft;
 325             } else
 326                 g_assert_not_reached();
 327
 328             do_resize();
 329         }
 330     } else if (e->type == KeyPress) {
 331         if (e->xkey.keycode == button_escape)
 332             moveresize_end(TRUE);
 333         else if (e->xkey.keycode == button_return)
 334             moveresize_end(FALSE);
 335         else {
 336             if (corner == prop_atoms.net_wm_moveresize_size_keyboard) {
 337                 if (e->xkey.keycode == button_right)
 338                     cur_x += MAX(4, moveresize_client->size_inc.width);
 339                 else if (e->xkey.keycode == button_left)
 340                     cur_x -= MAX(4, moveresize_client->size_inc.width);
 341                 else if (e->xkey.keycode == button_down)
 342                     cur_y += MAX(4, moveresize_client->size_inc.height);
 343                 else if (e->xkey.keycode == button_up)
 344                     cur_y -= MAX(4, moveresize_client->size_inc.height);
 345                 else
 346                     return;
 347                 do_resize();
 348             } else if (corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 349                 if (e->xkey.keycode == button_right)
 350                     cur_x += 4;
 351                 else if (e->xkey.keycode == button_left)
 352                     cur_x -= 4;
 353                 else if (e->xkey.keycode == button_down)
 354                     cur_y += 4;
 355                 else if (e->xkey.keycode == button_up)
 356                     cur_y -= 4;
 357                 else
 358                     return;
 359                 do_move();
 360             }
 361         }
 362     }
 363 }