src/stc/scintilla/src/KeyMap.cxx

   1 // Scintilla source code edit control
   2 // KeyMap.cxx  - defines a mapping between keystrokes and commands
   3 // Copyright 1998-2000 by Neil Hodgson <neilh@scintilla.org>
   4 // The License.txt file describes the conditions under which this software may be distributed.
   5
   6 #include "Platform.h"
   7
   8 #include "Scintilla.h"
   9
  10 #include "KeyMap.h"
  11
  12 KeyMap::KeyMap() : kmap(0), len(0), alloc(0) {
  13         for (int i = 0; MapDefault[i].key; i++) {
  14                 AssignCmdKey(MapDefault[i].key,
  15                         MapDefault[i].modifiers,
  16                         MapDefault[i].msg);
  17         }
  18 }
  19
  20 KeyMap::~KeyMap() {
  21         Clear();
  22 }
  23
  24 void KeyMap::Clear() {
  25         delete []kmap;
  26         kmap = 0;
  27         len = 0;
  28         alloc = 0;
  29 }
  30
  31 void KeyMap::AssignCmdKey(int key, int modifiers, unsigned int msg) {
  32         if ((len+1) >= alloc) {
  33                 KeyToCommand *ktcNew = new KeyToCommand[alloc + 5];
  34                 if (!ktcNew)
  35                         return;
  36                 for (int k=0;k<len;k++)
  37                         ktcNew[k] = kmap[k];
  38                 alloc += 5;
  39                 delete []kmap;
  40                 kmap = ktcNew;
  41         }
  42         for (int keyIndex = 0; keyIndex < len; keyIndex++) {
  43                 if ((key == kmap[keyIndex].key) && (modifiers == kmap[keyIndex].modifiers)) {
  44                         kmap[keyIndex].msg = msg;
  45                         return;
  46                 }
  47         }
  48         kmap[len].key = key;
  49         kmap[len].modifiers = modifiers;
  50         kmap[len].msg = msg;
  51         len++;
  52 }
  53
  54 unsigned int KeyMap::Find(int key, int modifiers) {
  55         for (int i=0; i < len; i++) {
  56                 if ((key == kmap[i].key) && (modifiers == kmap[i].modifiers)) {
  57                         return kmap[i].msg;
  58                 }
  59         }
  60         return 0;
  61 }
  62
  63 KeyToCommand KeyMap::MapDefault[] = {
  64     {SCK_DOWN,          SCI_NORM,       SCI_LINEDOWN},
  65     {SCK_DOWN,          SCI_SHIFT,      SCI_LINEDOWNEXTEND},
  66     {SCK_DOWN,          SCI_CTRL,       SCI_LINESCROLLDOWN},
  67     {SCK_UP,                    SCI_NORM,       SCI_LINEUP},
  68     {SCK_UP,                    SCI_SHIFT,      SCI_LINEUPEXTEND},
  69     {SCK_UP,                    SCI_CTRL,       SCI_LINESCROLLUP},
  70     {SCK_LEFT,          SCI_NORM,       SCI_CHARLEFT},
  71     {SCK_LEFT,          SCI_SHIFT,      SCI_CHARLEFTEXTEND},
  72     {SCK_LEFT,          SCI_CTRL,       SCI_WORDLEFT},
  73     {SCK_LEFT,          SCI_CSHIFT,     SCI_WORDLEFTEXTEND},
  74     {SCK_RIGHT,         SCI_NORM,       SCI_CHARRIGHT},
  75     {SCK_RIGHT,         SCI_SHIFT,      SCI_CHARRIGHTEXTEND},
  76     {SCK_RIGHT,         SCI_CTRL,       SCI_WORDRIGHT},
  77     {SCK_RIGHT,         SCI_CSHIFT,     SCI_WORDRIGHTEXTEND},
  78     {SCK_HOME,          SCI_NORM,       SCI_VCHOME},
  79     {SCK_HOME,          SCI_SHIFT,      SCI_VCHOMEEXTEND},
  80     {SCK_HOME,          SCI_CTRL,       SCI_DOCUMENTSTART},
  81     {SCK_HOME,          SCI_CSHIFT,     SCI_DOCUMENTSTARTEXTEND},
  82     {SCK_END,           SCI_NORM,       SCI_LINEEND},
  83     {SCK_END,           SCI_SHIFT,      SCI_LINEENDEXTEND},
  84     {SCK_END,           SCI_CTRL,       SCI_DOCUMENTEND},
  85     {SCK_END,           SCI_CSHIFT,     SCI_DOCUMENTENDEXTEND},
  86     {SCK_PRIOR,         SCI_NORM,       SCI_PAGEUP},
  87     {SCK_PRIOR,         SCI_SHIFT,      SCI_PAGEUPEXTEND},
  88     {SCK_NEXT,          SCI_NORM,       SCI_PAGEDOWN},
  89     {SCK_NEXT,          SCI_SHIFT,      SCI_PAGEDOWNEXTEND},
  90     {SCK_DELETE,        SCI_NORM,       SCI_CLEAR},
  91     {SCK_DELETE,        SCI_SHIFT,      SCI_CUT},
  92     {SCK_DELETE,        SCI_CTRL,       SCI_DELWORDRIGHT},
  93     {SCK_INSERT,                SCI_NORM,       SCI_EDITTOGGLEOVERTYPE},
  94     {SCK_INSERT,                SCI_SHIFT,      SCI_PASTE},
  95     {SCK_INSERT,                SCI_CTRL,       SCI_COPY},
  96     {SCK_ESCAPE,        SCI_NORM,       SCI_CANCEL},
  97     {SCK_BACK,          SCI_NORM,       SCI_DELETEBACK},
  98     {SCK_BACK,          SCI_SHIFT,      SCI_DELETEBACK},
  99     {SCK_BACK,          SCI_CTRL,       SCI_DELWORDLEFT},
 100     {SCK_BACK,          SCI_ALT,        SCI_UNDO},
 101     {'Z',                       SCI_CTRL,       SCI_UNDO},
 102     {'Y',                       SCI_CTRL,       SCI_REDO},
 103     {'X',                       SCI_CTRL,       SCI_CUT},
 104     {'C',                       SCI_CTRL,       SCI_COPY},
 105     {'V',                       SCI_CTRL,       SCI_PASTE},
 106     {'A',                       SCI_CTRL,       SCI_SELECTALL},
 107     {SCK_TAB,           SCI_NORM,       SCI_TAB},
 108     {SCK_TAB,           SCI_SHIFT,      SCI_BACKTAB},
 109     {SCK_RETURN,        SCI_NORM,       SCI_NEWLINE},
 110     {SCK_ADD,           SCI_CTRL,       SCI_ZOOMIN},
 111     {SCK_SUBTRACT,      SCI_CTRL,       SCI_ZOOMOUT},
 112     {SCK_DIVIDE,        SCI_CTRL,       SCI_SETZOOM},
 113     //'L',                      SCI_CTRL,               SCI_FORMFEED,
 114     {'L',                       SCI_CTRL,       SCI_LINECUT},
 115     {'L',                       SCI_CSHIFT,     SCI_LINEDELETE},
 116     {'T',                       SCI_CTRL,       SCI_LINETRANSPOSE},
 117     {'U',                       SCI_CTRL,       SCI_LOWERCASE},
 118     {'U',                       SCI_CSHIFT,     SCI_UPPERCASE},
 119     {0,0,0},
 120 };
 121