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Rev | Author | Line No. | Line |
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3225 | leency | 1 | //list_box |
2 | |||
3 | struct llist |
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4 | { |
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4049 | leency | 5 | int x, y, w, h, min_h, line_h; |
3225 | leency | 6 | int count, visible, first, current; |
4049 | leency | 7 | int current_temp; |
3225 | leency | 8 | void ClearList(); |
4073 | leency | 9 | int ProcessKey(dword key); |
4059 | leency | 10 | int KeyDown(); |
11 | int KeyUp(); |
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4063 | leency | 12 | int KeyHome(); |
13 | int KeyEnd(); |
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3225 | leency | 14 | void SetSizes(int xx, yy, ww, hh, min_hh, line_hh); |
15 | int MouseScroll(dword scroll_state); |
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16 | }; |
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17 | |||
18 | |||
19 | void llist::ClearList() |
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20 | { |
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21 | count = visible = first = current = 0; |
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22 | } |
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23 | |||
24 | |||
25 | void llist::SetSizes(int xx, yy, ww, hh, min_hh, line_hh) |
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26 | { |
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27 | x = xx; |
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28 | y = yy; |
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29 | w = ww; |
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30 | h = hh; |
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31 | min_h = min_hh; |
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32 | line_h = line_hh; |
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3368 | leency | 33 | visible = h / line_h; |
3225 | leency | 34 | } |
35 | |||
36 | |||
37 | int llist::MouseScroll(dword scroll_state) |
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38 | { |
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39 | if (scroll_state == 65535) |
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40 | { |
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41 | if (first == 0) return 0; |
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42 | if (first > 3) first -= 2; else first=0; |
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43 | return 1; |
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44 | } |
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45 | if (scroll_state == 1) |
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46 | { |
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47 | if (visible+first+3 >= count) first = count - visible; else first+=2; |
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48 | return 1; |
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49 | } |
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50 | return 0; |
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4059 | leency | 51 | } |
52 | |||
4073 | leency | 53 | int llist::ProcessKey(dword key) |
54 | { |
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55 | switch(key) |
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56 | { |
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57 | case 177: return KeyDown(); |
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58 | case 178: return KeyUp(); |
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59 | case 180: return KeyHome(); |
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60 | case 181: return KeyEnd(); |
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61 | } |
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62 | return 0; |
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63 | } |
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64 | |||
4059 | leency | 65 | int llist::KeyDown() |
66 | { |
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67 | if (current-first+1 |
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68 | { |
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4063 | leency | 69 | if (current+1>=count) return 0; |
4059 | leency | 70 | current++; |
71 | } |
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72 | else |
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73 | { |
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4063 | leency | 74 | if (visible+first>=count) return 0; |
4059 | leency | 75 | first++; |
76 | current++; |
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77 | } |
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78 | return 1; |
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79 | } |
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80 | |||
81 | int llist::KeyUp() |
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82 | { |
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83 | if (current>first) |
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84 | { |
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85 | current--; |
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86 | } |
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87 | else |
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88 | { |
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4063 | leency | 89 | if (first==0) return 0; |
4059 | leency | 90 | first--; |
91 | current--; |
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92 | } |
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93 | return 1; |
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4063 | leency | 94 | } |
95 | |||
96 | int llist::KeyHome() |
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97 | { |
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98 | if (current==0) && (first==0) return 0; |
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99 | current=0; |
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100 | first=0; |
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101 | return 1; |
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102 | } |
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103 | |||
104 | int llist::KeyEnd() |
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105 | { |
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106 | if (current==count-1) && (first==count-visible) return 0; |
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107 | current=count-1; |
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108 | first=count-visible; |
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109 | return 1; |
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3225 | leency | 110 | } |