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nuclear@10
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1 #include "state.h"
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nuclear@10
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2 #include "imtk.h"
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3
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4 struct key_node {
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5 int key;
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6 struct key_node *next;
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7 };
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8
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9
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10 struct imtk_state st = {
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11 1, 1, /* scr_width/scr_height */
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12 0, 0, 0, 0, 0, /* mousex/mousey, prevx, prevy, mouse_bnmask */
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13 -1, -1, -1, -1 /* active, hot, input, prev_active */
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14 };
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15
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nuclear@10
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16 static struct key_node *key_list, *key_tail;
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17
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18
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19
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20 void imtk_inp_key(int key, int state)
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21 {
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nuclear@10
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22 if(state == IMTK_DOWN) {
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nuclear@10
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23 struct key_node *node;
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24
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25 if(!(node = malloc(sizeof *node))) {
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26 return;
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27 }
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28 node->key = key;
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29 node->next = 0;
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30
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31 if(key_list) {
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32 key_tail->next = node;
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33 key_tail = node;
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nuclear@10
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34 } else {
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35 key_list = key_tail = node;
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36 }
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37 }
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38
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39 imtk_post_redisplay();
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40 }
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41
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42 void imtk_inp_mouse(int bn, int state)
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43 {
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44 if(state == IMTK_DOWN) {
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45 st.mouse_bnmask |= 1 << bn;
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nuclear@10
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46 } else {
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47 st.mouse_bnmask &= ~(1 << bn);
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48 }
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nuclear@10
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49 imtk_post_redisplay();
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50 }
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51
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nuclear@10
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52 void imtk_inp_motion(int x, int y)
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53 {
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54 st.mousex = x;
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55 st.mousey = y;
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56
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57 imtk_post_redisplay();
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58 }
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59
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60 void imtk_set_viewport(int x, int y)
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61 {
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62 st.scr_width = x;
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63 st.scr_height = y;
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64 }
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65
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66 void imtk_get_viewport(int *width, int *height)
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67 {
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68 if(width) *width = st.scr_width;
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69 if(height) *height = st.scr_height;
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70 }
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71
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72
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73 void imtk_set_active(int id)
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74 {
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75 if(id == -1 || st.hot == id) {
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76 st.prev_active = st.active;
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77 st.active = id;
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78 }
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79 }
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80
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81 int imtk_is_active(int id)
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82 {
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83 return st.active == id;
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84 }
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85
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86 int imtk_set_hot(int id)
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nuclear@10
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87 {
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88 if(st.active == -1) {
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89 st.hot = id;
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90 return 1;
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91 }
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92 return 0;
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93 }
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94
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95 int imtk_is_hot(int id)
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96 {
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nuclear@10
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97 return st.hot == id;
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98 }
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99
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100 void imtk_set_focus(int id)
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101 {
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102 st.input = id;
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103 }
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104
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105 int imtk_has_focus(int id)
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106 {
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107 return st.input == id;
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108 }
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109
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110 int imtk_hit_test(int x, int y, int w, int h)
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111 {
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112 return st.mousex >= x && st.mousex < (x + w) &&
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113 st.mousey >= y && st.mousey < (y + h);
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114 }
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115
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116 void imtk_get_mouse(int *xptr, int *yptr)
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117 {
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118 if(xptr) *xptr = st.mousex;
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119 if(yptr) *yptr = st.mousey;
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120 }
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121
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122 void imtk_set_prev_mouse(int x, int y)
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123 {
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124 st.prevx = x;
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125 st.prevy = y;
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126 }
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127
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128 void imtk_get_prev_mouse(int *xptr, int *yptr)
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129 {
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130 if(xptr) *xptr = st.prevx;
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131 if(yptr) *yptr = st.prevy;
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132 }
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133
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134 int imtk_button_state(int bn)
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135 {
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136 return st.mouse_bnmask & (1 << bn);
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137 }
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138
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139
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140 int imtk_get_key(void)
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nuclear@10
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141 {
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nuclear@10
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142 int key = -1;
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143 struct key_node *node = key_list;
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144
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145 if(node) {
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146 key = node->key;
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147 key_list = node->next;
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148 if(!key_list) {
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149 key_tail = 0;
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150 }
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151 free(node);
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152 }
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153 return key;
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154 }
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