1 | ; File name : MenuBorders.asm
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2 | ; Project name : Assembly Library
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3 | ; Created date : 14.7.2010
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4 | ; Last update : 28.9.2010
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5 | ; Author : Tomi Tilli
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6 | ; Description : Functions for drawing menu borders.
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7 |
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8 | ; Struct containing border characters for different types of menu window lines
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9 | struc BORDER_CHARS
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10 | .cLeft resb 1
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11 | .cMiddle resb 1
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12 | .cRight resb 1
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13 | endstruc
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14 |
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15 |
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16 | ; Section containing code
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17 | SECTION .text
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18 |
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19 | ;--------------------------------------------------------------------
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20 | ; MenuBorders_RefreshAll
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21 | ; Parameters
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22 | ; SS:BP: Ptr to MENU
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23 | ; Returns:
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24 | ; Nothing
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25 | ; Corrupts registers:
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26 | ; AX, BX, CX, DX, SI, DI
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27 | ;--------------------------------------------------------------------
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28 | ALIGN JUMP_ALIGN
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29 | MenuBorders_RefreshAll:
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30 | call MenuBorders_AdjustDisplayContextForDrawingBorders
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31 | call GetNumberOfMiddleCharactersToDX
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32 | call RefreshTitleBorders
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33 | call RefreshItemBorders
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34 | call RefreshInformationBorders
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35 | call DrawBottomBorderLine
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36 | call DrawBottomShadowLine
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37 | jmp MenuTime_DrawWithoutUpdating
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38 |
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39 |
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40 | ;--------------------------------------------------------------------
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41 | ; MenuBorders_AdjustDisplayContextForDrawingBorders
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42 | ; Parameters
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43 | ; SS:BP: Ptr to MENU
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44 | ; Returns:
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45 | ; Nothing
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46 | ; Corrupts registers:
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47 | ; AX, BX, SI, DI
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48 | ;--------------------------------------------------------------------
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49 | ALIGN JUMP_ALIGN
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50 | MenuBorders_AdjustDisplayContextForDrawingBorders:
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51 | mov bl, ATTRIBUTES_ARE_USED
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52 | mov ax, MenuCharOut_MenuBorderTeletypeOutputWithAttribute
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53 | CALL_DISPLAY_LIBRARY SetCharOutputFunctionFromAXwithAttribFlagInBL
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54 |
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55 | mov ax, bp
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56 | CALL_DISPLAY_LIBRARY SetCharacterOutputParameterFromAX
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57 |
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58 | call MenuLocation_GetTitleBordersTopLeftCoordinatesToAX
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59 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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60 |
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61 | mov si, ATTRIBUTE_CHARS.cBordersAndBackground
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62 | jmp MenuAttribute_SetToDisplayContextFromTypeInSI
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63 |
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64 |
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65 | ;--------------------------------------------------------------------
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66 | ; MenuBorders_RefreshItemBorders
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67 | ; Parameters
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68 | ; SS:BP: Ptr to MENU
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69 | ; Returns:
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70 | ; Nothing
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71 | ; Corrupts registers:
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72 | ; AX, BX, CX, DX, SI, DI
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73 | ;--------------------------------------------------------------------
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74 | ALIGN JUMP_ALIGN
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75 | MenuBorders_RefreshItemBorders:
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76 | call MenuBorders_AdjustDisplayContextForDrawingBorders
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77 | call MenuLocation_GetItemBordersTopLeftCoordinatesToAX
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78 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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79 |
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80 | call GetNumberOfMiddleCharactersToDX
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81 | jmp SHORT RefreshItemBorders
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82 |
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83 |
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84 | ;--------------------------------------------------------------------
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85 | ; GetNumberOfMiddleCharactersToDX
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86 | ; Parameters
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87 | ; SS:BP: Ptr to MENU
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88 | ; Returns:
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89 | ; DX: Number of middle border characters when drawing border lines
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90 | ; Corrupts registers:
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91 | ; Nothing
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92 | ;--------------------------------------------------------------------
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93 | ALIGN JUMP_ALIGN
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94 | GetNumberOfMiddleCharactersToDX:
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95 | eMOVZX dx, BYTE [bp+MENUINIT.bWidth]
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96 | sub dx, BYTE MENU_HORIZONTAL_BORDER_LINES
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97 | ret
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98 |
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99 |
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100 | ;--------------------------------------------------------------------
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101 | ; RefreshTitleBorders
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102 | ; Parameters
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103 | ; DX: Number of times to repeat middle character
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104 | ; SS:BP: Ptr to MENU
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105 | ; Returns:
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106 | ; Nothing
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107 | ; Corrupts registers:
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108 | ; AX, BX, CX, SI, DI
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109 | ;--------------------------------------------------------------------
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110 | ALIGN JUMP_ALIGN
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111 | RefreshTitleBorders:
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112 | call DrawTopBorderLine
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113 | eMOVZX cx, BYTE [bp+MENUINIT.bTitleLines]
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114 | jmp SHORT DrawTextBorderLinesByCXtimes
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115 |
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116 | ;--------------------------------------------------------------------
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117 | ; RefreshInformationBorders
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118 | ; Parameters
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119 | ; DX: Number of times to repeat middle character
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120 | ; SS:BP: Ptr to MENU
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121 | ; Returns:
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122 | ; Nothing
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123 | ; Corrupts registers:
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124 | ; AX, BX, CX, SI, DI
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125 | ;--------------------------------------------------------------------
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126 | ALIGN JUMP_ALIGN
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127 | RefreshInformationBorders:
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128 | call DrawSeparationBorderLine
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129 | eMOVZX cx, BYTE [bp+MENUINIT.bInfoLines]
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130 | jmp SHORT DrawTextBorderLinesByCXtimes
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131 |
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132 | ;--------------------------------------------------------------------
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133 | ; RefreshItemBorders
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134 | ; Parameters
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135 | ; DX: Number of times to repeat middle character
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136 | ; SS:BP: Ptr to MENU
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137 | ; Returns:
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138 | ; Nothing
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139 | ; Corrupts registers:
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140 | ; AX, BX, CX, SI, DI
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141 | ;--------------------------------------------------------------------
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142 | ALIGN JUMP_ALIGN
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143 | RefreshItemBorders:
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144 | call DrawSeparationBorderLine
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145 | call MenuScrollbars_GetMaxVisibleItemsOnPageToCX
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146 | DrawTextBorderLinesByCXtimes:
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147 | mov bx, DrawTextBorderLine
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148 | ; Fall to DrawBorderLinesByCXtimes
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149 |
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150 | ;--------------------------------------------------------------------
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151 | ; DrawBorderLinesByCXtimes
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152 | ; Parameters
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153 | ; BX: Offset to border drawing function
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154 | ; CX: Number of border lines to draw
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155 | ; DX: Number of times to repeat middle character
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156 | ; SS:BP: Ptr to MENU
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157 | ; Returns:
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158 | ; Nothing
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159 | ; Corrupts registers:
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160 | ; AX, CX, SI, DI
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161 | ;--------------------------------------------------------------------
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162 | DrawBorderLinesByCXtimes:
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163 | jcxz .Return
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164 | ALIGN JUMP_ALIGN
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165 | .DrawBordersWithFunctionInBX:
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166 | call bx
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167 | loop .DrawBordersWithFunctionInBX
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168 | .Return:
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169 | ret
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170 |
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171 |
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172 | ;--------------------------------------------------------------------
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173 | ; DrawTopBorderLine
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174 | ; DrawSeparationBorderLine
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175 | ; DrawBottomBorderLine
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176 | ; DrawBottomShadowLine
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177 | ; DrawTextBorderLine
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178 | ; Parameters
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179 | ; DX: Number of times to repeat middle character
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180 | ; SS:BP: Ptr to MENU
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181 | ; Returns:
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182 | ; Nothing
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183 | ; Corrupts registers:
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184 | ; AX, SI, DI
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185 | ;--------------------------------------------------------------------
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186 | ALIGN JUMP_ALIGN
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187 | DrawTopBorderLine:
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188 | mov si, g_rgbTopBorderCharacters
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189 | call PrintBorderCharactersFromCSSI
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190 | jmp SHORT PrintNewlineToEndBorderLine
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191 |
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192 | ALIGN JUMP_ALIGN
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193 | DrawSeparationBorderLine:
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194 | mov si, g_rgbSeparationBorderCharacters
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195 | jmp SHORT PrintBorderCharactersFromCSSIandShadowCharacter
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196 |
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197 | ALIGN JUMP_ALIGN
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198 | DrawBottomBorderLine:
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199 | mov si, g_rgbBottomBorderCharacters
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200 | jmp SHORT PrintBorderCharactersFromCSSIandShadowCharacter
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201 |
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202 | ALIGN JUMP_ALIGN
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203 | DrawBottomShadowLine:
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204 | CALL_DISPLAY_LIBRARY GetSoftwareCoordinatesToAX
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205 | inc ax ; Increment column
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206 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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207 | inc dx ; Increment repeat count...
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208 | inc dx ; ...for both corner characters
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209 | call PrintShadowCharactersByDXtimes
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210 | dec dx ; Restore...
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211 | dec dx ; ...DX
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212 | ret
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213 |
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214 | ALIGN JUMP_ALIGN
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215 | DrawTextBorderLine:
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216 | mov si, g_rgbTextBorderCharacters
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217 | ; Fall to PrintBorderCharactersFromCSSIandShadowCharacter
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218 |
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219 | ;--------------------------------------------------------------------
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220 | ; PrintBorderCharactersFromCSSIandShadowCharacter
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221 | ; Parameters
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222 | ; DX: Number of times to repeat middle character
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223 | ; CS:SI: Ptr to BORDER_CHARS
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224 | ; SS:BP: Ptr to MENU
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225 | ; Returns:
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226 | ; Nothing
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227 | ; Corrupts registers:
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228 | ; AX, SI, DI
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229 | ;--------------------------------------------------------------------
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230 | ALIGN JUMP_ALIGN
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231 | PrintBorderCharactersFromCSSIandShadowCharacter:
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232 | call PrintBorderCharactersFromCSSI
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233 | push dx
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234 | mov dx, 1
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235 | call PrintShadowCharactersByDXtimes
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236 | pop dx
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237 | ; Fall to PrintNewlineToEndBorderLine
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238 |
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239 | ;--------------------------------------------------------------------
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240 | ; PrintNewlineToEndBorderLine
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241 | ; Parameters
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242 | ; SS:BP: Ptr to MENU
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243 | ; Returns:
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244 | ; Nothing
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245 | ; Corrupts registers:
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246 | ; AX, DI
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247 | ;--------------------------------------------------------------------
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248 | ALIGN JUMP_ALIGN
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249 | PrintNewlineToEndBorderLine:
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250 | CALL_DISPLAY_LIBRARY PrintNewlineCharacters
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251 | ret
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252 |
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253 |
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254 | ;--------------------------------------------------------------------
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255 | ; PrintShadowCharactersByDXtimes
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256 | ; Parameters
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257 | ; DX: Number of shadow characters to print
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258 | ; SS:BP: Ptr to MENU
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259 | ; Returns:
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260 | ; Nothing
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261 | ; Corrupts registers:
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262 | ; AX, SI, DI
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263 | ;--------------------------------------------------------------------
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264 | ALIGN JUMP_ALIGN
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265 | PrintShadowCharactersByDXtimes:
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266 | CALL_DISPLAY_LIBRARY PushDisplayContext
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267 |
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268 | mov si, ATTRIBUTE_CHARS.cShadow
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269 | call MenuAttribute_SetToDisplayContextFromTypeInSI
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270 |
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271 | push bx
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272 | mov bl, ATTRIBUTES_ARE_USED
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273 | mov ax, FAST_OUTPUT_WITH_ATTRIBUTE_ONLY
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274 | CALL_DISPLAY_LIBRARY SetCharOutputFunctionFromAXwithAttribFlagInBL
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275 | pop bx
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276 |
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277 | call PrintMultipleBorderCharactersFromAL ; AL does not matter
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278 |
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279 | CALL_DISPLAY_LIBRARY PopDisplayContext
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280 | ret
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281 |
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282 |
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283 | ;--------------------------------------------------------------------
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284 | ; PrintBorderCharactersFromCSSI
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285 | ; Parameters
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286 | ; DX: Number of times to repeat middle character
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287 | ; CS:SI: Ptr to BORDER_CHARS
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288 | ; SS:BP: Ptr to MENU
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289 | ; Returns:
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290 | ; Nothing
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291 | ; Corrupts registers:
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292 | ; AX, SI, DI
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293 | ;--------------------------------------------------------------------
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294 | ALIGN JUMP_ALIGN
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295 | PrintBorderCharactersFromCSSI:
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296 | cld
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297 | eSEG cs
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298 | lodsb ; Load from [si+BORDER_CHARS.cLeft] to AL
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299 | call MenuBorders_PrintSingleBorderCharacterFromAL
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300 |
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301 | eSEG cs
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302 | lodsb ; Load from [si+BORDER_CHARS.cMiddle] to AL
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303 | call PrintMultipleBorderCharactersFromAL
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304 |
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305 | eSEG cs
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306 | lodsb ; Load from [si+BORDER_CHARS.cRight] to AL
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307 | ; Fall to MenuBorders_PrintSingleBorderCharacterFromAL
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308 |
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309 | ;--------------------------------------------------------------------
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310 | ; MenuBorders_PrintSingleBorderCharacterFromAL
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311 | ; PrintMultipleBorderCharactersFromAL
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312 | ; Parameters
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313 | ; AL: Character to print
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314 | ; DX: Repeat count (PrintMultipleBorderCharactersFromAL)
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315 | ; SS:BP: Ptr to MENU
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316 | ; Returns:
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317 | ; Nothing
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318 | ; Corrupts registers:
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319 | ; AX, DI
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320 | ;--------------------------------------------------------------------
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321 | ALIGN JUMP_ALIGN
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322 | MenuBorders_PrintSingleBorderCharacterFromAL:
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323 | CALL_DISPLAY_LIBRARY PrintCharacterFromAL
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324 | ret
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325 |
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326 | ALIGN JUMP_ALIGN
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327 | PrintMultipleBorderCharactersFromAL:
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328 | push cx
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329 | mov cx, dx
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330 | CALL_DISPLAY_LIBRARY PrintRepeatedCharacterFromALwithCountInCX
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331 | pop cx
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332 | ret
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333 |
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334 |
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335 |
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336 | ; Lookup tables for border characters
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337 | g_rgbTopBorderCharacters:
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338 | istruc BORDER_CHARS
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339 | at BORDER_CHARS.cLeft, db DOUBLE_TOP_LEFT_CORNER
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340 | at BORDER_CHARS.cMiddle, db DOUBLE_HORIZONTAL
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341 | at BORDER_CHARS.cRight, db DOUBLE_TOP_RIGHT_CORNER
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342 | iend
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343 |
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344 | g_rgbSeparationBorderCharacters:
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345 | istruc BORDER_CHARS
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346 | at BORDER_CHARS.cLeft, db DOUBLE_VERTICAL_TO_RIGHT_SINGLE
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347 | at BORDER_CHARS.cMiddle, db SINGLE_HORIZONTAL
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348 | at BORDER_CHARS.cRight, db DOUBLE_VERTICAL_TO_LEFT_SINGLE
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349 | iend
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350 |
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351 | g_rgbBottomBorderCharacters:
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352 | istruc BORDER_CHARS
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353 | at BORDER_CHARS.cLeft, db DOUBLE_BOTTOM_LEFT_CORNER
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354 | at BORDER_CHARS.cMiddle, db DOUBLE_HORIZONTAL
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355 | at BORDER_CHARS.cRight, db DOUBLE_BOTTOM_RIGHT_CORNER
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356 | iend
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357 |
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358 | g_rgbTextBorderCharacters:
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359 | istruc BORDER_CHARS
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360 | at BORDER_CHARS.cLeft, db DOUBLE_VERTICAL
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361 | at BORDER_CHARS.cMiddle, db ' '
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362 | at BORDER_CHARS.cRight, db DOUBLE_VERTICAL
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363 | iend
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