src/rubberband.cpp

   1 #define __RUBBERBAND_C__
   2
   3 /**
   4  * \file src/rubberband.cpp
   5  * \brief Rubberbanding selector
   6  *
   7  * Author:
   8  *   Lauris Kaplinski <lauris@kaplinski.com>
   9  *
  10  * Copyright (C) 1999-2002 Lauris Kaplinski
  11  *
  12  * Released under GNU GPL, read the file 'COPYING' for more information
  13  */
  14
  15 #include "display/sodipodi-ctrlrect.h"
  16 #include "desktop.h"
  17 #include "inkscape.h"
  18 #include "desktop-handles.h"
  19 #include "rubberband.h"
  20
  21 Inkscape::Rubberband *Inkscape::Rubberband::_instance = NULL;
  22
  23 Inkscape::Rubberband::Rubberband()
  24     : _desktop(SP_ACTIVE_DESKTOP), _canvas(NULL)
  25 {
  26
  27 }
  28
  29 void Inkscape::Rubberband::start(SPDesktop *d, NR::Point const &p)
  30 {
  31     stop();
  32     _desktop = d;
  33     _start = p;
  34 }
  35
  36 void Inkscape::Rubberband::stop()
  37 {
  38     sp_canvas_clear_forced_full_redraws(_desktop->canvas);
  39
  40     if (_canvas) {
  41         gtk_object_destroy((GtkObject *) _canvas);
  42         _canvas = NULL;
  43     }
  44 }
  45
  46 void Inkscape::Rubberband::move(NR::Point const &p)
  47 {
  48     if (_canvas == NULL) {
  49         _canvas = static_cast<CtrlRect *>(sp_canvas_item_new(sp_desktop_controls(_desktop), SP_TYPE_CTRLRECT, NULL));
  50     }
  51
  52     _desktop->scroll_to_point(&p);
  53     _end = p;
  54
  55     sp_canvas_force_full_redraws(_desktop->canvas, 2);
  56
  57     _canvas->setRectangle(NR::Rect(_start, _end));
  58 }
  59
  60 NR::Maybe<NR::Rect> Inkscape::Rubberband::getRectangle() const
  61 {
  62     if (_canvas == NULL) {
  63         return NR::Nothing();
  64     }
  65
  66     return NR::Rect(_start, _end);
  67 }
  68
  69 Inkscape::Rubberband *Inkscape::Rubberband::get()
  70 {
  71     if (_instance == NULL) {
  72         _instance = new Inkscape::Rubberband;
  73     }
  74
  75     return _instance;
  76 }
  77
  78 /*
  79   Local Variables:
  80   mode:c++
  81   c-file-style:"stroustrup"
  82   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  83   indent-tabs-mode:nil
  84   fill-column:99
  85   End:
  86 */
  87 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :