File x/Display

class x.Display

Inherits

State supers

tag.Display, tom.Descriptor, too.DescriptorReadDelegate, Constants

methods

tom.OutputStream
  help tom.OutputStream s
  done tom.MutableKeyed done;

Undocumented.

void
  load tom.MutableArray arguments;

Register this CIT to TAG, and try to find one or more `-display' arguments on the command line.

instance (id) (display)
  openDisplay tom.String name;

Open the display known by its name, and return it. Upon success, the display has been registered with the tag.Display class.

private void
  closeDisplay pointer d;

Close the X Display d.

instance x.Display

variables

public pointer display;

The underlying X display structure.

public tom.String name;

The name of this display.

tom.MutableIndexed screens;

The screens on this display.

tom.MutableIntDictionary windows;

Windows on this display, mapped on their X window id.

tom.MutableDictionary fonts;

The loaded fonts, keyed on their name (which includes the size).

public Font current_font;

The current font.

pointer locked_screen;

The X screen of the locked view.

public int locked_window;

The X window of the locked view.

float bl_x;

The bounds origin of the locked view, in window coordinates.

float bl_y;

Subpath current_path;

The current path. This is actually re-used.

methods

class (CachedImageRep)
  cachedImageRepClass;

Return the CachedImageRep class to be used to display on this Display.

void
  close;

Close this display.

id
  init tom.String display_name;

Designated initializer.

private id
  do_init tom.String display_name;

Open the connection to the display named display_name. Return nil if opening the display failed.

void
  doLockView tag.View v;

Undocumented.

void
  doUnlockView tag.View v;

Undocumented.

void
  updateLockedView;

Undocumented.

void
  beep;

Drawing

void
  drawImage CachedImageRep rep
         at (float, float) (x, y);

Undocumented.

void
  drawLine (float, float, float, float) (x1, y1, x2, y2);

Undocumented.

void
  fillRect (float, float, float, float) (x, y, w, h);

Undocumented.

void
  setColor tag.Color c;

Undocumented.

void
  setFont Font f;

Undocumented.

void
  setXColor XColor c;

Undocumented.

void
  show tom.String text
    at (float, float) (x, y);

Undocumented.

Blitting

void
  copyRect (float, float, float, float) (rx, ry, rw, rh)
        to (float, float) (x, y);

Copy the indicated rectange in the currently locked_view to the destination point.

void
  clipToRect (float, float, float, float) (x, y, w, h);

Start clipping to the indicated rectangle on the currently locked_window.

void
  unclip;

Cancel a previous clipToRect.

tom.Indexed
  screens;

Return the screens attached to this display.

void
  addWindow Window window
        key int x_win_id;

Be informed by the window that it now exists on the receiving dislay.

void
  clearWindow int w;

Invoke XClearWindow on the window w. This fills the window with its background colour (with whatever attributes).

void
  frameWindow int window
           to (float, float, float, float) (x, y, w, h);

Move and/or resize the window.

void
  moveWindow int window
          to (float, float) (x, y);

Undocumented.

void
  mapWindow int window
     raised boolean raised;

Invoke XMapWindow or XMapRaised on the window.

void
  setTitle tom.String title
  ofWindow int w;

Undocumented.

void
  unmapWindow int w;

Invoke XUnmapWindow on the window.

Dispatching events

void
  dispatch;

Dispatch, while catching problems (can't do that from C sensibly yet).

int
  eventsQueued int when;

Return the number of events queued in some way.

id
  flushOutput;

See if we can dispatch more events.

private void
  internalDispatch;

Dispatch events while there are any.

void
  readEventOnDescriptor tom.Descriptor d;

too.DescriptorReadDelegate

pointer
  loadFont tom.String name;

Fonts

Font
  fontNamed tom.String name
       size int size;

Return the font with with name and size. It is possible that the size is ignored.

Font
  systemFont;

Undocumented.

void
  closepath;

Close the current path.

void
  curveto (float, float, float, float, float, float) (x1, y1, x2, y2, x3, y3);

Undocumented.

void
  eofill;

Undocumented.

void
  fill;

Undocumented.

void
  flattenpath;

Replace the current_path with a flattened version.

void
  lineto (float, float) (x, y);

Undocumented.

void
  newpath;

Undocumented.

void
  moveto (float, float) (x, y);

Undocumented.

(float, float, float, float) (x1, y1, x2, y2)
  pathbbox;

Forward to the current_path.

void
  stroke;

Undocumented.