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 "config.h"
  10 #include "render/render.h"
  11 #include "render/theme.h"
  12
  13 #include <X11/Xlib.h>
  14 #include <glib.h>
  15
  16 gboolean moveresize_in_progress = FALSE;
  17 Client *moveresize_client = NULL;
  18
  19 static gboolean moving = FALSE; /* TRUE - moving, FALSE - resizing */
  20
  21 static int start_x, start_y, start_cx, start_cy, start_cw, start_ch;
  22 static int cur_x, cur_y;
  23 static guint button;
  24 static guint32 corner;
  25 static Corner lockcorner;
  26
  27 static guint button_return, button_escape, button_left, button_right,
  28     button_up, button_down;
  29
  30 static Popup *popup = NULL;
  31 static InternalWindow opaque_window = { { Window_Internal }, None };
  32 static GC opaque_gc = None;
  33 static gboolean first_draw = FALSE;
  34
  35 #define POPUP_X (10)
  36 #define POPUP_Y (10)
  37
  38 void moveresize_startup()
  39 {
  40     XSetWindowAttributes attrib;
  41     XGCValues gcv;
  42
  43     button_return = XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
  44     button_escape = XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
  45     button_left = XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
  46     button_right = XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
  47     button_up = XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
  48     button_down = XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
  49
  50     popup = popup_new(FALSE);
  51     popup_size_to_string(popup, "W:  0000  W:  0000");
  52     popup_position(popup, NorthWestGravity, POPUP_X, POPUP_Y);
  53
  54     attrib.save_under = True;
  55     opaque_window.win = XCreateWindow(ob_display, ob_root, 0, 0, 1, 1, 0,
  56                                       RrDepth(ob_rr_inst), InputOutput,
  57                                       RrVisual(ob_rr_inst),
  58                                       CWSaveUnder, &attrib);
  59     stacking_add(INTERNAL_AS_WINDOW(&opaque_window));
  60     stacking_raise(INTERNAL_AS_WINDOW(&opaque_window));
  61
  62     /* a GC to invert stuff */
  63     gcv.function = GXxor;
  64     gcv.line_width = theme_bwidth;
  65     gcv.foreground = (WhitePixel(ob_display, ob_screen) ^
  66                       BlackPixel(ob_display, ob_screen));
  67     opaque_gc = XCreateGC(ob_display, opaque_window.win,
  68                           GCFunction | GCForeground | GCLineWidth, &gcv);
  69 }
  70
  71 void moveresize_shutdown()
  72 {
  73     popup_free(popup);
  74     popup = NULL;
  75     stacking_remove(&opaque_window);
  76     XFreeGC(ob_display, opaque_gc);
  77     XDestroyWindow(ob_display, opaque_window.win);
  78 }
  79
  80 static void popup_coords(char *format, int a, int b)
  81 {
  82     char *text;
  83
  84     text = g_strdup_printf(format, a, b);
  85     popup_show(popup, text, NULL);
  86     g_free(text);
  87 }
  88
  89 void moveresize_start(Client *c, int x, int y, guint b, guint32 cnr)
  90 {
  91     Cursor cur;
  92
  93     g_assert(!moveresize_in_progress);
  94
  95     moveresize_client = c;
  96     start_cx = c->frame->area.x;
  97     start_cy = c->frame->area.y;
  98     start_cw = c->area.width;
  99     start_ch = c->area.height;
 100     start_x = x;
 101     start_y = y;
 102     if (corner == prop_atoms.net_wm_moveresize_move_keyboard ||
 103         corner == prop_atoms.net_wm_moveresize_size_keyboard)
 104         button = 0; /* mouse can't end it without being pressed first */
 105     else
 106         button = b;
 107     corner = cnr;
 108
 109     if (corner == prop_atoms.net_wm_moveresize_move ||
 110         corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 111         cur_x = start_cx;
 112         cur_y = start_cy;
 113         moving = TRUE;
 114     } else {
 115         cur_x = start_cw;
 116         cur_y = start_ch;
 117         moving = FALSE;
 118     }
 119
 120     moveresize_in_progress = TRUE;
 121
 122     if (corner == prop_atoms.net_wm_moveresize_size_topleft)
 123         cur = ob_cursors.tl;
 124     else if (corner == prop_atoms.net_wm_moveresize_size_top)
 125         cur = ob_cursors.t;
 126     else if (corner == prop_atoms.net_wm_moveresize_size_topright)
 127         cur = ob_cursors.tr;
 128     else if (corner == prop_atoms.net_wm_moveresize_size_right)
 129         cur = ob_cursors.r;
 130     else if (corner == prop_atoms.net_wm_moveresize_size_bottomright)
 131         cur = ob_cursors.br;
 132     else if (corner == prop_atoms.net_wm_moveresize_size_bottom)
 133         cur = ob_cursors.b;
 134     else if (corner == prop_atoms.net_wm_moveresize_size_bottomleft)
 135         cur = ob_cursors.bl;
 136     else if (corner == prop_atoms.net_wm_moveresize_size_left)
 137         cur = ob_cursors.l;
 138     else if (corner == prop_atoms.net_wm_moveresize_size_keyboard)
 139         cur = ob_cursors.br;
 140     else if (corner == prop_atoms.net_wm_moveresize_move)
 141         cur = ob_cursors.move;
 142     else if (corner == prop_atoms.net_wm_moveresize_move_keyboard)
 143         cur = ob_cursors.move;
 144     else
 145         g_assert_not_reached();
 146
 147     grab_pointer(TRUE, cur);
 148     grab_keyboard(TRUE);
 149
 150     XResizeWindow(ob_display, opaque_window.win, screen_physical_size.width,
 151                   screen_physical_size.height);
 152     stacking_raise(INTERNAL_AS_WINDOW(&opaque_window));
 153     if (corner == prop_atoms.net_wm_moveresize_move ||
 154         corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 155         if (!config_opaque_move)
 156             XMapWindow(ob_display, opaque_window.win);
 157     } else {
 158         if (!config_opaque_resize)
 159             XMapWindow(ob_display, opaque_window.win);
 160     }
 161     first_draw = TRUE;
 162 }
 163
 164 void moveresize_end(gboolean cancel)
 165 {
 166     XUnmapWindow(ob_display, opaque_window.win);
 167
 168     grab_keyboard(FALSE);
 169     grab_pointer(FALSE, None);
 170
 171     popup_hide(popup);
 172
 173     if (moving) {
 174         client_configure(moveresize_client, Corner_TopLeft,
 175                          (cancel ? start_cx : cur_x),
 176                          (cancel ? start_cy : cur_y),
 177                          start_cw, start_ch, TRUE, TRUE);
 178     } else {
 179         client_configure(moveresize_client, lockcorner,
 180                          moveresize_client->area.x,
 181                          moveresize_client->area.y,
 182                          (cancel ? start_cw : cur_x),
 183                          (cancel ? start_ch : cur_y), TRUE, TRUE);
 184     }
 185
 186     moveresize_in_progress = FALSE;
 187     moveresize_client = NULL;
 188 }
 189
 190 static void do_move()
 191 {
 192     int oldx, oldy, oldw, oldh;
 193
 194     dispatch_move(moveresize_client, &cur_x, &cur_y);
 195
 196     oldx = moveresize_client->frame->area.x;
 197     oldy = moveresize_client->frame->area.y;
 198     oldw = moveresize_client->frame->area.width;
 199     oldh = moveresize_client->frame->area.height;
 200     /* get where the client should be */
 201     frame_frame_gravity(moveresize_client->frame, &cur_x, &cur_y);
 202     client_configure(moveresize_client, Corner_TopLeft, cur_x, cur_y,
 203                      start_cw, start_ch, TRUE, FALSE);
 204     /* draw the new one */
 205     if (moveresize_client->frame->area.x != oldx ||
 206         moveresize_client->frame->area.y != oldy ||
 207         moveresize_client->frame->area.width != oldw ||
 208         moveresize_client->frame->area.height != oldh) {
 209         if (!config_opaque_move)
 210             XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 211                            moveresize_client->frame->area.x,
 212                            moveresize_client->frame->area.y,
 213                            moveresize_client->frame->area.width - 1,
 214                            moveresize_client->frame->area.height - 1);
 215         /* erase the old one */
 216         if (!config_opaque_move && !first_draw)
 217             XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 218                            oldx, oldy, oldw - 1, oldh - 1);
 219         first_draw = FALSE;
 220     }
 221
 222     /* this would be better with a fixed width font ... XXX can do it better
 223        if there are 2 text boxes */
 224     popup_coords("X:  %4d  Y:  %4d", moveresize_client->frame->area.x,
 225                  moveresize_client->frame->area.y);
 226 }
 227
 228 static void do_resize()
 229 {
 230     int oldx, oldy, oldw, oldh;
 231
 232     /* dispatch_resize needs the frame size */
 233     cur_x += moveresize_client->frame->size.left +
 234         moveresize_client->frame->size.right;
 235     cur_y += moveresize_client->frame->size.top +
 236         moveresize_client->frame->size.bottom;
 237
 238     dispatch_resize(moveresize_client, &cur_x, &cur_y, lockcorner);
 239
 240     cur_x -= moveresize_client->frame->size.left +
 241         moveresize_client->frame->size.right;
 242     cur_y -= moveresize_client->frame->size.top +
 243         moveresize_client->frame->size.bottom;
 244
 245     oldx = moveresize_client->frame->area.x;
 246     oldy = moveresize_client->frame->area.y;
 247     oldw = moveresize_client->frame->area.width;
 248     oldh = moveresize_client->frame->area.height;
 249     client_configure(moveresize_client, lockcorner,
 250                      moveresize_client->area.x, moveresize_client->area.y,
 251                      cur_x, cur_y, TRUE, FALSE);
 252     /* draw the new one */
 253     if (!config_opaque_resize)
 254         XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 255                        moveresize_client->frame->area.x,
 256                        moveresize_client->frame->area.y,
 257                        moveresize_client->frame->area.width - 1,
 258                        moveresize_client->frame->area.height - 1);
 259     /* erase the old one */
 260     if (!config_opaque_resize && !first_draw)
 261         XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 262                        oldx, oldy, oldw - 1, oldh - 1);
 263     first_draw = FALSE;
 264
 265     /* this would be better with a fixed width font ... XXX can do it better
 266        if there are 2 text boxes */
 267     popup_coords("W:  %4d  H:  %4d", moveresize_client->logical_size.width,
 268                  moveresize_client->logical_size.height);
 269 }
 270
 271 void moveresize_event(XEvent *e)
 272 {
 273     g_assert(moveresize_in_progress);
 274
 275     if (e->type == ButtonPress) {
 276         if (!button) {
 277             start_x = e->xbutton.x_root;
 278             start_y = e->xbutton.y_root;
 279             button = e->xbutton.button; /* this will end it now */
 280         }
 281     } else if (e->type == ButtonRelease) {
 282         if (!button || e->xbutton.button == button) {
 283             moveresize_end(FALSE);
 284         }
 285     } else if (e->type == MotionNotify) {
 286         if (moving) {
 287             cur_x = start_cx + e->xmotion.x_root - start_x;
 288             cur_y = start_cy + e->xmotion.y_root - start_y;
 289             do_move();
 290         } else {
 291             if (corner == prop_atoms.net_wm_moveresize_size_topleft) {
 292                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 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_top) {
 296                 cur_x = start_cw;
 297                 cur_y = start_ch - (e->xmotion.y_root - start_y);
 298                 lockcorner = Corner_BottomRight;
 299             } else if (corner == prop_atoms.net_wm_moveresize_size_topright) {
 300                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 301                 cur_y = start_ch - (e->xmotion.y_root - start_y);
 302                 lockcorner = Corner_BottomLeft;
 303             } else if (corner == prop_atoms.net_wm_moveresize_size_right) {
 304                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 305                 cur_y = start_ch;
 306                 lockcorner = Corner_BottomLeft;
 307             } else if (corner ==
 308                        prop_atoms.net_wm_moveresize_size_bottomright) {
 309                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 310                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 311                 lockcorner = Corner_TopLeft;
 312             } else if (corner == prop_atoms.net_wm_moveresize_size_bottom) {
 313                 cur_x = start_cw;
 314                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 315                 lockcorner = Corner_TopLeft;
 316             } else if (corner ==
 317                        prop_atoms.net_wm_moveresize_size_bottomleft) {
 318                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 319                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 320                 lockcorner = Corner_TopRight;
 321             } else if (corner == prop_atoms.net_wm_moveresize_size_left) {
 322                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 323                 cur_y = start_ch;
 324                 lockcorner = Corner_TopRight;
 325             } else if (corner == prop_atoms.net_wm_moveresize_size_keyboard) {
 326                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 327                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 328                 lockcorner = Corner_TopLeft;
 329             } else
 330                 g_assert_not_reached();
 331
 332             do_resize();
 333         }
 334     } else if (e->type == KeyPress) {
 335         if (e->xkey.keycode == button_escape)
 336             moveresize_end(TRUE);
 337         else if (e->xkey.keycode == button_return)
 338             moveresize_end(FALSE);
 339         else {
 340             if (corner == prop_atoms.net_wm_moveresize_size_keyboard) {
 341                 if (e->xkey.keycode == button_right)
 342                     cur_x += MAX(4, moveresize_client->size_inc.width);
 343                 else if (e->xkey.keycode == button_left)
 344                     cur_x -= MAX(4, moveresize_client->size_inc.width);
 345                 else if (e->xkey.keycode == button_down)
 346                     cur_y += MAX(4, moveresize_client->size_inc.height);
 347                 else if (e->xkey.keycode == button_up)
 348                     cur_y -= MAX(4, moveresize_client->size_inc.height);
 349                 else
 350                     return;
 351                 do_resize();
 352             } else if (corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 353                 if (e->xkey.keycode == button_right)
 354                     cur_x += 4;
 355                 else if (e->xkey.keycode == button_left)
 356                     cur_x -= 4;
 357                 else if (e->xkey.keycode == button_down)
 358                     cur_y += 4;
 359                 else if (e->xkey.keycode == button_up)
 360                     cur_y -= 4;
 361                 else
 362                     return;
 363                 do_move();
 364             }
 365         }
 366     }
 367 }