]>
Commit | Line | Data |
---|---|---|
632820d1 | 1 | /** @file\r |
2 | Implementation of various string and line routines\r | |
3 | \r | |
6f18b50d | 4 | Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved. <BR>\r |
632820d1 | 5 | This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "HexEditor.h"\r | |
16 | \r | |
17 | extern BOOLEAN HEditorMouseAction;\r | |
18 | \r | |
a1d4bfcc | 19 | /**\r |
20 | Free a line and it's internal buffer.\r | |
21 | \r | |
22 | @param[in] Src The line to be freed.\r | |
23 | **/\r | |
632820d1 | 24 | VOID\r |
25 | HLineFree (\r | |
26 | IN HEFI_EDITOR_LINE *Src\r | |
27 | )\r | |
632820d1 | 28 | {\r |
29 | if (Src == NULL) {\r | |
30 | return ;\r | |
31 | }\r | |
32 | \r | |
33 | SHELL_FREE_NON_NULL (Src);\r | |
34 | \r | |
35 | }\r | |
36 | \r | |
a1d4bfcc | 37 | /**\r |
38 | Advance to the next Count lines.\r | |
39 | \r | |
40 | @param[in] Count The line number to advance.\r | |
41 | \r | |
42 | @retval NULL An error occured.\r | |
43 | @return A pointer to the line after advance.\r | |
44 | **/\r | |
632820d1 | 45 | HEFI_EDITOR_LINE *\r |
a1d4bfcc | 46 | HLineAdvance (\r |
632820d1 | 47 | IN UINTN Count\r |
48 | )\r | |
632820d1 | 49 | {\r |
50 | UINTN Index;\r | |
51 | HEFI_EDITOR_LINE *Line;\r | |
52 | \r | |
53 | Line = HMainEditor.BufferImage->CurrentLine;\r | |
54 | if (Line == NULL) {\r | |
55 | return NULL;\r | |
56 | }\r | |
57 | \r | |
58 | for (Index = 0; Index < Count; Index++) {\r | |
59 | //\r | |
60 | // if already last line\r | |
61 | //\r | |
62 | if (Line->Link.ForwardLink == HMainEditor.BufferImage->ListHead) {\r | |
63 | return NULL;\r | |
64 | }\r | |
65 | \r | |
66 | Line = CR (Line->Link.ForwardLink, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);\r | |
67 | }\r | |
68 | \r | |
69 | return Line;\r | |
70 | }\r | |
71 | \r | |
a1d4bfcc | 72 | /**\r |
73 | Retreat to the previous Count lines.\r | |
74 | \r | |
75 | @param[in] Count The line number to retreat.\r | |
76 | \r | |
77 | @retval NULL An error occured.\r | |
78 | @return A pointer to the line after retreat.\r | |
79 | **/\r | |
632820d1 | 80 | HEFI_EDITOR_LINE *\r |
a1d4bfcc | 81 | HLineRetreat (\r |
632820d1 | 82 | IN UINTN Count\r |
83 | )\r | |
632820d1 | 84 | {\r |
85 | UINTN Index;\r | |
86 | HEFI_EDITOR_LINE *Line;\r | |
87 | \r | |
88 | Line = HMainEditor.BufferImage->CurrentLine;\r | |
89 | if (Line == NULL) {\r | |
90 | return NULL;\r | |
91 | }\r | |
92 | \r | |
93 | for (Index = 0; Index < Count; Index++) {\r | |
94 | //\r | |
95 | // already the first line\r | |
96 | //\r | |
97 | if (Line->Link.BackLink == HMainEditor.BufferImage->ListHead) {\r | |
98 | return NULL;\r | |
99 | }\r | |
100 | \r | |
101 | Line = CR (Line->Link.BackLink, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);\r | |
102 | }\r | |
103 | \r | |
104 | return Line;\r | |
105 | }\r | |
106 | \r | |
a1d4bfcc | 107 | /**\r |
108 | Advance/Retreat lines.\r | |
109 | \r | |
110 | @param[in] Count The line number to advance/retreat.\r | |
111 | >0 : advance\r | |
112 | <0: retreat \r | |
113 | \r | |
114 | @retval NULL An error occured.\r | |
115 | @return A pointer to the line after move.\r | |
116 | **/\r | |
632820d1 | 117 | HEFI_EDITOR_LINE *\r |
118 | HMoveLine (\r | |
119 | IN INTN Count\r | |
120 | )\r | |
632820d1 | 121 | {\r |
122 | HEFI_EDITOR_LINE *Line;\r | |
123 | UINTN AbsCount;\r | |
124 | \r | |
125 | //\r | |
126 | // difference with MoveCurrentLine\r | |
127 | // just return Line\r | |
128 | // do not set currentline to Line\r | |
129 | //\r | |
130 | if (Count <= 0) {\r | |
33c031ee | 131 | AbsCount = (UINTN)ABS(Count);\r |
a1d4bfcc | 132 | Line = HLineRetreat (AbsCount);\r |
632820d1 | 133 | } else {\r |
a1d4bfcc | 134 | Line = HLineAdvance ((UINTN)Count);\r |
632820d1 | 135 | }\r |
136 | \r | |
137 | return Line;\r | |
138 | }\r | |
139 | \r | |
a1d4bfcc | 140 | /**\r |
141 | Advance/Retreat lines and set CurrentLine in BufferImage to it.\r | |
142 | \r | |
143 | @param[in] Count The line number to advance/retreat.\r | |
144 | >0 : advance\r | |
145 | <0: retreat\r | |
146 | \r | |
147 | @retval NULL An error occured.\r | |
148 | @return A pointer to the line after move.\r | |
149 | **/\r | |
632820d1 | 150 | HEFI_EDITOR_LINE *\r |
151 | HMoveCurrentLine (\r | |
152 | IN INTN Count\r | |
153 | )\r | |
632820d1 | 154 | {\r |
155 | HEFI_EDITOR_LINE *Line;\r | |
156 | UINTN AbsCount;\r | |
157 | \r | |
158 | //\r | |
159 | // <0: retreat\r | |
160 | // >0: advance\r | |
161 | //\r | |
162 | if (Count <= 0) {\r | |
33c031ee | 163 | AbsCount = (UINTN)ABS(Count);\r |
a1d4bfcc | 164 | Line = HLineRetreat (AbsCount);\r |
632820d1 | 165 | } else {\r |
a1d4bfcc | 166 | Line = HLineAdvance ((UINTN)Count);\r |
632820d1 | 167 | }\r |
168 | \r | |
169 | if (Line == NULL) {\r | |
170 | return NULL;\r | |
171 | }\r | |
172 | \r | |
173 | HMainEditor.BufferImage->CurrentLine = Line;\r | |
174 | \r | |
175 | return Line;\r | |
176 | }\r | |
177 | \r | |
178 | \r | |
a1d4bfcc | 179 | /**\r |
180 | Free all the lines in HBufferImage.\r | |
632820d1 | 181 | Fields affected:\r |
182 | Lines\r | |
183 | CurrentLine\r | |
184 | NumLines\r | |
185 | ListHead \r | |
186 | \r | |
a1d4bfcc | 187 | @param[in] ListHead The list head.\r |
188 | @param[in] Lines The lines.\r | |
632820d1 | 189 | \r |
a1d4bfcc | 190 | @retval EFI_SUCCESS The operation was successful.\r |
191 | **/\r | |
192 | EFI_STATUS\r | |
193 | HFreeLines (\r | |
194 | IN LIST_ENTRY *ListHead,\r | |
195 | IN HEFI_EDITOR_LINE *Lines\r | |
196 | )\r | |
632820d1 | 197 | {\r |
a1d4bfcc | 198 | LIST_ENTRY *Link;\r |
632820d1 | 199 | HEFI_EDITOR_LINE *Line;\r |
200 | \r | |
201 | //\r | |
202 | // release all the lines\r | |
203 | //\r | |
204 | if (Lines != NULL) {\r | |
205 | \r | |
206 | Line = Lines;\r | |
207 | Link = &(Line->Link);\r | |
208 | do {\r | |
209 | Line = CR (Link, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);\r | |
210 | Link = Link->ForwardLink;\r | |
211 | HLineFree (Line);\r | |
212 | } while (Link != ListHead);\r | |
213 | }\r | |
214 | \r | |
215 | ListHead->ForwardLink = ListHead;\r | |
216 | ListHead->BackLink = ListHead;\r | |
217 | \r | |
218 | return EFI_SUCCESS;\r | |
219 | }\r | |
220 | \r | |
a1d4bfcc | 221 | /**\r |
222 | Get the X information for the mouse.\r | |
632820d1 | 223 | \r |
a1d4bfcc | 224 | @param[in] GuidX The change.\r |
632820d1 | 225 | \r |
a1d4bfcc | 226 | @return the new information.\r |
227 | **/\r | |
632820d1 | 228 | INT32\r |
229 | HGetTextX (\r | |
230 | IN INT32 GuidX\r | |
231 | )\r | |
232 | {\r | |
233 | INT32 Gap;\r | |
234 | \r | |
235 | HMainEditor.MouseAccumulatorX += GuidX;\r | |
236 | Gap = (HMainEditor.MouseAccumulatorX * (INT32) HMainEditor.ScreenSize.Column) / (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionX);\r | |
237 | HMainEditor.MouseAccumulatorX = (HMainEditor.MouseAccumulatorX * (INT32) HMainEditor.ScreenSize.Column) % (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionX);\r | |
238 | HMainEditor.MouseAccumulatorX = HMainEditor.MouseAccumulatorX / (INT32) HMainEditor.ScreenSize.Column;\r | |
239 | return Gap;\r | |
240 | }\r | |
241 | \r | |
a1d4bfcc | 242 | /**\r |
243 | Get the Y information for the mouse.\r | |
244 | \r | |
245 | @param[in] GuidY The change.\r | |
246 | \r | |
247 | @return the new information.\r | |
248 | **/\r | |
632820d1 | 249 | INT32\r |
250 | HGetTextY (\r | |
251 | IN INT32 GuidY\r | |
252 | )\r | |
253 | {\r | |
254 | INT32 Gap;\r | |
255 | \r | |
256 | HMainEditor.MouseAccumulatorY += GuidY;\r | |
257 | Gap = (HMainEditor.MouseAccumulatorY * (INT32) HMainEditor.ScreenSize.Row) / (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionY);\r | |
258 | HMainEditor.MouseAccumulatorY = (HMainEditor.MouseAccumulatorY * (INT32) HMainEditor.ScreenSize.Row) % (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionY);\r | |
259 | HMainEditor.MouseAccumulatorY = HMainEditor.MouseAccumulatorY / (INT32) HMainEditor.ScreenSize.Row;\r | |
260 | \r | |
261 | return Gap;\r | |
262 | }\r |