43 public class MultipleSelectionHelper {
44
45 public Point focus = new Point(-1, 0);
46 public Point anchor = null;
47 public boolean multiple = false;
48 public boolean singleCell = false;
49 public Collection<Point> selectedSet = new ArrayList<Point>();
50 public int rows;
51 public int columns;
52 public int pageHeight = -1;
53 public int pageWidth = -1;
54 public boolean ctrlA = false;
55 public int topVisible = -1;
56 public int bottomVisible = -1;
57
58 public MultipleSelectionHelper(int columns, int rows) {
59 this.rows = rows;
60 this.columns = columns;
61 }
62
63 /**
64 * ALARM: must be called before pushing key combination, from code, which
65 * knows, how to understand, which area is visible now. And this visible
66 * area must be passed as argument.
67 *
68 * @param area - range [begin, end] - current fully visible range of lines.
69 * Checks, that begin <= end.
70 */
71 public void setVisibleRange(Range area) {
72 Assert.assertTrue(area.begin <= area.end);
73 this.topVisible = area.begin;
74 this.bottomVisible = area.end;
75 this.pageHeight = this.bottomVisible - this.topVisible + 1;
76 }
77
78 public void setPageHeight(int height) {
79 this.pageHeight = height;
80 }
81
82 public void setPageWidth(int width) {
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43 public class MultipleSelectionHelper {
44
45 public Point focus = new Point(-1, 0);
46 public Point anchor = null;
47 public boolean multiple = false;
48 public boolean singleCell = false;
49 public Collection<Point> selectedSet = new ArrayList<Point>();
50 public int rows;
51 public int columns;
52 public int pageHeight = -1;
53 public int pageWidth = -1;
54 public boolean ctrlA = false;
55 public int topVisible = -1;
56 public int bottomVisible = -1;
57
58 public MultipleSelectionHelper(int columns, int rows) {
59 this.rows = rows;
60 this.columns = columns;
61 }
62
63 public void setColumnsNum(int columns) {
64 this.columns = columns;
65 }
66
67 public void setRowsNum(int rows) {
68 this.rows = rows;
69 }
70
71 /**
72 * ALARM: must be called before pushing key combination, from code, which
73 * knows, how to understand, which area is visible now. And this visible
74 * area must be passed as argument.
75 *
76 * @param area - range [begin, end] - current fully visible range of lines.
77 * Checks, that begin <= end.
78 */
79 public void setVisibleRange(Range area) {
80 Assert.assertTrue(area.begin <= area.end);
81 this.topVisible = area.begin;
82 this.bottomVisible = area.end;
83 this.pageHeight = this.bottomVisible - this.topVisible + 1;
84 }
85
86 public void setPageHeight(int height) {
87 this.pageHeight = height;
88 }
89
90 public void setPageWidth(int width) {
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