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
  53     attrib.save_under = True;
  54     opaque_window.win = XCreateWindow(ob_display, ob_root, 0, 0, 1, 1, 0,
  55                                       RrDepth(ob_rr_inst), InputOutput,
  56                                       RrVisual(ob_rr_inst),
  57                                       CWSaveUnder, &attrib);
  58     stacking_add(INTERNAL_AS_WINDOW(&opaque_window));
  59     stacking_raise(INTERNAL_AS_WINDOW(&opaque_window));
  60
  61     /* a GC to invert stuff */
  62     gcv.function = GXxor;
  63     gcv.line_width = ob_rr_theme->bwidth;
  64     gcv.foreground = (WhitePixel(ob_display, ob_screen) ^
  65                       BlackPixel(ob_display, ob_screen));
  66     opaque_gc = XCreateGC(ob_display, opaque_window.win,
  67                           GCFunction | GCForeground | GCLineWidth, &gcv);
  68 }
  69
  70 void moveresize_shutdown()
  71 {
  72     popup_free(popup);
  73     popup = NULL;
  74     stacking_remove(&opaque_window);
  75     XFreeGC(ob_display, opaque_gc);
  76     XDestroyWindow(ob_display, opaque_window.win);
  77 }
  78
  79 static void popup_coords(char *format, int a, int b)
  80 {
  81     char *text;
  82     Rect *area;
  83
  84     text = g_strdup_printf(format, a, b);
  85     area = screen_physical_area_monitor(0);
  86     popup_position(popup, NorthWestGravity,
  87                    POPUP_X + area->x, POPUP_Y + area->y);
  88     popup_show(popup, text, NULL);
  89     g_free(text);
  90 }
  91
  92 void moveresize_start(Client *c, int x, int y, guint b, guint32 cnr)
  93 {
  94     Cursor cur;
  95     Rect *a;
  96
  97     g_assert(!moveresize_in_progress);
  98
  99     moveresize_client = c;
 100     start_cx = c->frame->area.x;
 101     start_cy = c->frame->area.y;
 102     start_cw = c->area.width;
 103     start_ch = c->area.height;
 104     start_x = x;
 105     start_y = y;
 106     if (corner == prop_atoms.net_wm_moveresize_move_keyboard ||
 107         corner == prop_atoms.net_wm_moveresize_size_keyboard)
 108         button = 0; /* mouse can't end it without being pressed first */
 109     else
 110         button = b;
 111     corner = cnr;
 112
 113     if (corner == prop_atoms.net_wm_moveresize_move ||
 114         corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 115         cur_x = start_cx;
 116         cur_y = start_cy;
 117         moving = TRUE;
 118     } else {
 119         cur_x = start_cw;
 120         cur_y = start_ch;
 121         moving = FALSE;
 122     }
 123
 124     moveresize_in_progress = TRUE;
 125
 126     if (corner == prop_atoms.net_wm_moveresize_size_topleft)
 127         cur = ob_cursors.tl;
 128     else if (corner == prop_atoms.net_wm_moveresize_size_top)
 129         cur = ob_cursors.t;
 130     else if (corner == prop_atoms.net_wm_moveresize_size_topright)
 131         cur = ob_cursors.tr;
 132     else if (corner == prop_atoms.net_wm_moveresize_size_right)
 133         cur = ob_cursors.r;
 134     else if (corner == prop_atoms.net_wm_moveresize_size_bottomright)
 135         cur = ob_cursors.br;
 136     else if (corner == prop_atoms.net_wm_moveresize_size_bottom)
 137         cur = ob_cursors.b;
 138     else if (corner == prop_atoms.net_wm_moveresize_size_bottomleft)
 139         cur = ob_cursors.bl;
 140     else if (corner == prop_atoms.net_wm_moveresize_size_left)
 141         cur = ob_cursors.l;
 142     else if (corner == prop_atoms.net_wm_moveresize_size_keyboard)
 143         cur = ob_cursors.br;
 144     else if (corner == prop_atoms.net_wm_moveresize_move)
 145         cur = ob_cursors.move;
 146     else if (corner == prop_atoms.net_wm_moveresize_move_keyboard)
 147         cur = ob_cursors.move;
 148     else
 149         g_assert_not_reached();
 150
 151     grab_pointer(TRUE, cur);
 152     grab_keyboard(TRUE);
 153
 154     a = screen_physical_area();
 155
 156     XMoveResizeWindow(ob_display, opaque_window.win,
 157                       a->x, a->y, a->width, a->height);
 158     stacking_raise(INTERNAL_AS_WINDOW(&opaque_window));
 159     if (corner == prop_atoms.net_wm_moveresize_move ||
 160         corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 161         if (!config_opaque_move)
 162             XMapWindow(ob_display, opaque_window.win);
 163     } else {
 164         if (!config_opaque_resize)
 165             XMapWindow(ob_display, opaque_window.win);
 166     }
 167     first_draw = TRUE;
 168 }
 169
 170 void moveresize_end(gboolean cancel)
 171 {
 172     XUnmapWindow(ob_display, opaque_window.win);
 173
 174     grab_keyboard(FALSE);
 175     grab_pointer(FALSE, None);
 176
 177     popup_hide(popup);
 178
 179     if (moving) {
 180         client_configure(moveresize_client, Corner_TopLeft,
 181                          (cancel ? start_cx : cur_x),
 182                          (cancel ? start_cy : cur_y),
 183                          start_cw, start_ch, TRUE, TRUE);
 184     } else {
 185         client_configure(moveresize_client, lockcorner,
 186                          moveresize_client->area.x,
 187                          moveresize_client->area.y,
 188                          (cancel ? start_cw : cur_x),
 189                          (cancel ? start_ch : cur_y), TRUE, TRUE);
 190     }
 191
 192     moveresize_in_progress = FALSE;
 193     moveresize_client = NULL;
 194 }
 195
 196 static void do_move()
 197 {
 198     int oldx, oldy, oldw, oldh;
 199
 200     dispatch_move(moveresize_client, &cur_x, &cur_y);
 201
 202     oldx = moveresize_client->frame->area.x;
 203     oldy = moveresize_client->frame->area.y;
 204     oldw = moveresize_client->frame->area.width;
 205     oldh = moveresize_client->frame->area.height;
 206     /* get where the client should be */
 207     frame_frame_gravity(moveresize_client->frame, &cur_x, &cur_y);
 208     client_configure(moveresize_client, Corner_TopLeft, cur_x, cur_y,
 209                      start_cw, start_ch, TRUE, FALSE);
 210     /* draw the new one */
 211     if (moveresize_client->frame->area.x != oldx ||
 212         moveresize_client->frame->area.y != oldy ||
 213         moveresize_client->frame->area.width != oldw ||
 214         moveresize_client->frame->area.height != oldh) {
 215         if (!config_opaque_move)
 216             XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 217                            moveresize_client->frame->area.x,
 218                            moveresize_client->frame->area.y,
 219                            moveresize_client->frame->area.width - 1,
 220                            moveresize_client->frame->area.height - 1);
 221         /* erase the old one */
 222         if (!config_opaque_move && !first_draw)
 223             XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 224                            oldx, oldy, oldw - 1, oldh - 1);
 225         first_draw = FALSE;
 226     }
 227
 228     /* this would be better with a fixed width font ... XXX can do it better
 229        if there are 2 text boxes */
 230     popup_coords("X:  %4d  Y:  %4d", moveresize_client->frame->area.x,
 231                  moveresize_client->frame->area.y);
 232 }
 233
 234 static void do_resize()
 235 {
 236     int oldx, oldy, oldw, oldh;
 237
 238     /* dispatch_resize needs the frame size */
 239     cur_x += moveresize_client->frame->size.left +
 240         moveresize_client->frame->size.right;
 241     cur_y += moveresize_client->frame->size.top +
 242         moveresize_client->frame->size.bottom;
 243
 244     dispatch_resize(moveresize_client, &cur_x, &cur_y, lockcorner);
 245
 246     cur_x -= moveresize_client->frame->size.left +
 247         moveresize_client->frame->size.right;
 248     cur_y -= moveresize_client->frame->size.top +
 249         moveresize_client->frame->size.bottom;
 250
 251     oldx = moveresize_client->frame->area.x;
 252     oldy = moveresize_client->frame->area.y;
 253     oldw = moveresize_client->frame->area.width;
 254     oldh = moveresize_client->frame->area.height;
 255     client_configure(moveresize_client, lockcorner,
 256                      moveresize_client->area.x, moveresize_client->area.y,
 257                      cur_x, cur_y, TRUE, FALSE);
 258     /* draw the new one */
 259     if (!config_opaque_resize)
 260         XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 261                        moveresize_client->frame->area.x,
 262                        moveresize_client->frame->area.y,
 263                        moveresize_client->frame->area.width - 1,
 264                        moveresize_client->frame->area.height - 1);
 265     /* erase the old one */
 266     if (!config_opaque_resize && !first_draw)
 267         XDrawRectangle(ob_display, opaque_window.win, opaque_gc,
 268                        oldx, oldy, oldw - 1, oldh - 1);
 269     first_draw = FALSE;
 270
 271     /* this would be better with a fixed width font ... XXX can do it better
 272        if there are 2 text boxes */
 273     popup_coords("W:  %4d  H:  %4d", moveresize_client->logical_size.width,
 274                  moveresize_client->logical_size.height);
 275 }
 276
 277 void moveresize_event(XEvent *e)
 278 {
 279     g_assert(moveresize_in_progress);
 280
 281     if (e->type == ButtonPress) {
 282         if (!button) {
 283             start_x = e->xbutton.x_root;
 284             start_y = e->xbutton.y_root;
 285             button = e->xbutton.button; /* this will end it now */
 286         }
 287     } else if (e->type == ButtonRelease) {
 288         if (!button || e->xbutton.button == button) {
 289             moveresize_end(FALSE);
 290         }
 291     } else if (e->type == MotionNotify) {
 292         if (moving) {
 293             cur_x = start_cx + e->xmotion.x_root - start_x;
 294             cur_y = start_cy + e->xmotion.y_root - start_y;
 295             do_move();
 296         } else {
 297             if (corner == prop_atoms.net_wm_moveresize_size_topleft) {
 298                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 299                 cur_y = start_ch - (e->xmotion.y_root - start_y);
 300                 lockcorner = Corner_BottomRight;
 301             } else if (corner == prop_atoms.net_wm_moveresize_size_top) {
 302                 cur_x = start_cw;
 303                 cur_y = start_ch - (e->xmotion.y_root - start_y);
 304                 lockcorner = Corner_BottomRight;
 305             } else if (corner == prop_atoms.net_wm_moveresize_size_topright) {
 306                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 307                 cur_y = start_ch - (e->xmotion.y_root - start_y);
 308                 lockcorner = Corner_BottomLeft;
 309             } else if (corner == prop_atoms.net_wm_moveresize_size_right) {
 310                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 311                 cur_y = start_ch;
 312                 lockcorner = Corner_BottomLeft;
 313             } else if (corner ==
 314                        prop_atoms.net_wm_moveresize_size_bottomright) {
 315                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 316                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 317                 lockcorner = Corner_TopLeft;
 318             } else if (corner == prop_atoms.net_wm_moveresize_size_bottom) {
 319                 cur_x = start_cw;
 320                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 321                 lockcorner = Corner_TopLeft;
 322             } else if (corner ==
 323                        prop_atoms.net_wm_moveresize_size_bottomleft) {
 324                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 325                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 326                 lockcorner = Corner_TopRight;
 327             } else if (corner == prop_atoms.net_wm_moveresize_size_left) {
 328                 cur_x = start_cw - (e->xmotion.x_root - start_x);
 329                 cur_y = start_ch;
 330                 lockcorner = Corner_TopRight;
 331             } else if (corner == prop_atoms.net_wm_moveresize_size_keyboard) {
 332                 cur_x = start_cw + (e->xmotion.x_root - start_x);
 333                 cur_y = start_ch + (e->xmotion.y_root - start_y);
 334                 lockcorner = Corner_TopLeft;
 335             } else
 336                 g_assert_not_reached();
 337
 338             do_resize();
 339         }
 340     } else if (e->type == KeyPress) {
 341         if (e->xkey.keycode == button_escape)
 342             moveresize_end(TRUE);
 343         else if (e->xkey.keycode == button_return)
 344             moveresize_end(FALSE);
 345         else {
 346             if (corner == prop_atoms.net_wm_moveresize_size_keyboard) {
 347                 if (e->xkey.keycode == button_right)
 348                     cur_x += MAX(4, moveresize_client->size_inc.width);
 349                 else if (e->xkey.keycode == button_left)
 350                     cur_x -= MAX(4, moveresize_client->size_inc.width);
 351                 else if (e->xkey.keycode == button_down)
 352                     cur_y += MAX(4, moveresize_client->size_inc.height);
 353                 else if (e->xkey.keycode == button_up)
 354                     cur_y -= MAX(4, moveresize_client->size_inc.height);
 355                 else
 356                     return;
 357                 do_resize();
 358             } else if (corner == prop_atoms.net_wm_moveresize_move_keyboard) {
 359                 if (e->xkey.keycode == button_right)
 360                     cur_x += 4;
 361                 else if (e->xkey.keycode == button_left)
 362                     cur_x -= 4;
 363                 else if (e->xkey.keycode == button_down)
 364                     cur_y += 4;
 365                 else if (e->xkey.keycode == button_up)
 366                     cur_y -= 4;
 367                 else
 368                     return;
 369                 do_move();
 370             }
 371         }
 372     }
 373 }