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), _started(false)
  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     _started = true;
  35
  36     sp_canvas_force_full_redraw_after_interruptions(_desktop->canvas, 5);
  37 }
  38
  39 void Inkscape::Rubberband::stop()
  40 {
  41     _started = false;
  42
  43     if (_canvas) {
  44         GtkObject *temp = _canvas;
  45         _canvas = NULL;
  46         gtk_object_destroy(temp);
  47         sp_canvas_end_forced_full_redraws(_desktop->canvas);
  48     }
  49 }
  50
  51 void Inkscape::Rubberband::move(NR::Point const &p)
  52 {
  53     if (_canvas == NULL) {
  54         _canvas = static_cast<CtrlRect *>(sp_canvas_item_new(sp_desktop_controls(_desktop), SP_TYPE_CTRLRECT, NULL));
  55     }
  56
  57     _desktop->scroll_to_point(&p);
  58     _end = p;
  59
  60     _canvas->setRectangle(NR::Rect(_start, _end));
  61 }
  62
  63 NR::Maybe<NR::Rect> Inkscape::Rubberband::getRectangle() const
  64 {
  65     if (_canvas == NULL) {
  66         return NR::Nothing();
  67     }
  68
  69     return NR::Rect(_start, _end);
  70 }
  71
  72 Inkscape::Rubberband *Inkscape::Rubberband::get()
  73 {
  74     if (_instance == NULL) {
  75         _instance = new Inkscape::Rubberband;
  76     }
  77
  78     return _instance;
  79 }
  80
  81 bool Inkscape::Rubberband::is_started()
  82 {
  83     return _started;
  84 }
  85
  86 /*
  87   Local Variables:
  88   mode:c++
  89   c-file-style:"stroustrup"
  90   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  91   indent-tabs-mode:nil
  92   fill-column:99
  93   End:
  94 */
  95 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :