1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
// 30 november 2014
static void finishSelect(struct table *t, intptr_t prev)
{
if (t->selected < 0)
t->selected = 0;
if (t->selected >= t->count)
t->selected = t->count - 1;
// always redraw the old and new rows to avoid artifacts when scrolling, even if they are the same (since the focused column may have changed)
redrawRow(t, prev);
if (prev != t->selected)
redrawRow(t, t->selected);
// if we need to scroll, the scrolling will force a redraw, so we don't have to worry about doing so ourselves
if (t->selected < t->firstVisible)
vscrollto(t, t->selected);
// note that this is not lastVisible(t) because the last visible row may only be partially visible and we want selections to make them fully visible
else if (t->selected >= (t->firstVisible + t->pagesize))
vscrollto(t, t->selected - t->pagesize + 1);
}
// TODO isolate functionality so other keyboard event handlers can run
static void keySelect(struct table *t, WPARAM wParam, LPARAM lParam)
{
intptr_t prev;
// TODO figure out correct behavior with nothing selected
if (t->count == 0) // don't try to do anything if there's nothing to do
return;
prev = t->selected;
switch (wParam) {
case VK_UP:
t->selected--;
break;
case VK_DOWN:
t->selected++;
break;
case VK_PRIOR:
t->selected -= t->pagesize;
break;
case VK_NEXT:
t->selected += t->pagesize;
break;
case VK_HOME:
t->selected = 0;
break;
case VK_END:
t->selected = t->count - 1;
break;
case VK_LEFT:
t->focusedColumn--;
if (t->focusedColumn < 0)
if (t->nColumns == 0) // peg at -1
t->focusedColumn = -1;
else
t->focusedColumn = 0;
break;
case VK_RIGHT:
t->focusedColumn++;
if (t->focusedColumn >= t->nColumns)
if (t->nColumns == 0) // peg at -1
t->focusedColumn = -1;
else
t->focusedColumn = t->nColumns - 1;
break;
// TODO keyboard shortcuts for going to the first/last column?
default:
// don't touch anything
return;
}
finishSelect(t, prev);
}
// TODO rename
static void selectItem(struct table *t, WPARAM wParam, LPARAM lParam)
{
intptr_t prev;
prev = t->selected;
lParamToRowColumn(t, lParam, &(t->selected), &(t->focusedColumn));
finishSelect(t, prev);
}
|
