ext/scintilla/src/KeyMap.cxx

   1 // Scintilla source code edit control
   2 /** @file KeyMap.cxx
   3  ** Defines a mapping between keystrokes and commands.
   4  **/
   5 // Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
   6 // The License.txt file describes the conditions under which this software may be distributed.
   7
   8 #include "Platform.h"
   9
  10 #include "Scintilla.h"
  11
  12 #include "KeyMap.h"
  13
  14 #ifdef SCI_NAMESPACE
  15 using namespace Scintilla;
  16 #endif
  17
  18 KeyMap::KeyMap() : kmap(0), len(0), alloc(0) {
  19         for (int i = 0; MapDefault[i].key; i++) {
  20                 AssignCmdKey(MapDefault[i].key,
  21                         MapDefault[i].modifiers,
  22                         MapDefault[i].msg);
  23         }
  24 }
  25
  26 KeyMap::~KeyMap() {
  27         Clear();
  28 }
  29
  30 void KeyMap::Clear() {
  31         delete []kmap;
  32         kmap = 0;
  33         len = 0;
  34         alloc = 0;
  35 }
  36
  37 void KeyMap::AssignCmdKey(int key, int modifiers, unsigned int msg) {
  38         if ((len+1) >= alloc) {
  39                 KeyToCommand *ktcNew = new KeyToCommand[alloc + 5];
  40                 if (!ktcNew)
  41                         return;
  42                 for (int k = 0; k < len; k++)
  43                         ktcNew[k] = kmap[k];
  44                 alloc += 5;
  45                 delete []kmap;
  46                 kmap = ktcNew;
  47         }
  48         for (int keyIndex = 0; keyIndex < len; keyIndex++) {
  49                 if ((key == kmap[keyIndex].key) && (modifiers == kmap[keyIndex].modifiers)) {
  50                         kmap[keyIndex].msg = msg;
  51                         return;
  52                 }
  53         }
  54         kmap[len].key = key;
  55         kmap[len].modifiers = modifiers;
  56         kmap[len].msg = msg;
  57         len++;
  58 }
  59
  60 unsigned int KeyMap::Find(int key, int modifiers) {
  61         for (int i = 0; i < len; i++) {
  62                 if ((key == kmap[i].key) && (modifiers == kmap[i].modifiers)) {
  63                         return kmap[i].msg;
  64                 }
  65         }
  66         return 0;
  67 }
  68
  69 #if PLAT_GTK_MACOSX
  70 #define OS_X_KEYS 1
  71 #else
  72 #define OS_X_KEYS 0
  73 #endif
  74
  75 // Define a modifier that is exactly Ctrl key on all platforms
  76 // Most uses of Ctrl map to Cmd on OS X but some can't so use SCI_[S]CTRL_META
  77 #if OS_X_KEYS
  78 #define SCI_CTRL_META SCI_META
  79 #define SCI_SCTRL_META (SCI_META | SCI_SHIFT)
  80 #else
  81 #define SCI_CTRL_META SCI_CTRL
  82 #define SCI_SCTRL_META (SCI_CTRL | SCI_SHIFT)
  83 #endif
  84
  85 const KeyToCommand KeyMap::MapDefault[] = {
  86
  87 #if OS_X_KEYS
  88     {SCK_DOWN,          SCI_CTRL,       SCI_DOCUMENTEND},
  89     {SCK_DOWN,          SCI_CSHIFT,     SCI_DOCUMENTENDEXTEND},
  90     {SCK_UP,            SCI_CTRL,       SCI_DOCUMENTSTART},
  91     {SCK_UP,            SCI_CSHIFT,     SCI_DOCUMENTSTARTEXTEND},
  92     {SCK_LEFT,          SCI_CTRL,       SCI_VCHOME},
  93     {SCK_LEFT,          SCI_CSHIFT,     SCI_VCHOMEEXTEND},
  94     {SCK_RIGHT,         SCI_CTRL,       SCI_LINEEND},
  95     {SCK_RIGHT,         SCI_CSHIFT,     SCI_LINEENDEXTEND},
  96 #endif
  97
  98     {SCK_DOWN,          SCI_NORM,       SCI_LINEDOWN},
  99     {SCK_DOWN,          SCI_SHIFT,      SCI_LINEDOWNEXTEND},
 100     {SCK_DOWN,          SCI_CTRL_META,  SCI_LINESCROLLDOWN},
 101     {SCK_DOWN,          SCI_ASHIFT,     SCI_LINEDOWNRECTEXTEND},
 102     {SCK_UP,            SCI_NORM,       SCI_LINEUP},
 103     {SCK_UP,                    SCI_SHIFT,      SCI_LINEUPEXTEND},
 104     {SCK_UP,                    SCI_CTRL_META,  SCI_LINESCROLLUP},
 105     {SCK_UP,            SCI_ASHIFT,     SCI_LINEUPRECTEXTEND},
 106     {'[',                       SCI_CTRL,               SCI_PARAUP},
 107     {'[',                       SCI_CSHIFT,     SCI_PARAUPEXTEND},
 108     {']',                       SCI_CTRL,               SCI_PARADOWN},
 109     {']',                       SCI_CSHIFT,     SCI_PARADOWNEXTEND},
 110     {SCK_LEFT,          SCI_NORM,       SCI_CHARLEFT},
 111     {SCK_LEFT,          SCI_SHIFT,      SCI_CHARLEFTEXTEND},
 112     {SCK_LEFT,          SCI_CTRL_META,  SCI_WORDLEFT},
 113     {SCK_LEFT,          SCI_SCTRL_META, SCI_WORDLEFTEXTEND},
 114     {SCK_LEFT,          SCI_ASHIFT,     SCI_CHARLEFTRECTEXTEND},
 115     {SCK_RIGHT,         SCI_NORM,       SCI_CHARRIGHT},
 116     {SCK_RIGHT,         SCI_SHIFT,      SCI_CHARRIGHTEXTEND},
 117     {SCK_RIGHT,         SCI_CTRL_META,  SCI_WORDRIGHT},
 118     {SCK_RIGHT,         SCI_SCTRL_META, SCI_WORDRIGHTEXTEND},
 119     {SCK_RIGHT,         SCI_ASHIFT,     SCI_CHARRIGHTRECTEXTEND},
 120     {'/',               SCI_CTRL,               SCI_WORDPARTLEFT},
 121     {'/',               SCI_CSHIFT,     SCI_WORDPARTLEFTEXTEND},
 122     {'\\',              SCI_CTRL,               SCI_WORDPARTRIGHT},
 123     {'\\',              SCI_CSHIFT,     SCI_WORDPARTRIGHTEXTEND},
 124     {SCK_HOME,          SCI_NORM,       SCI_VCHOME},
 125     {SCK_HOME,          SCI_SHIFT,      SCI_VCHOMEEXTEND},
 126     {SCK_HOME,          SCI_CTRL,       SCI_DOCUMENTSTART},
 127     {SCK_HOME,          SCI_CSHIFT,     SCI_DOCUMENTSTARTEXTEND},
 128     {SCK_HOME,          SCI_ALT,        SCI_HOMEDISPLAY},
 129     {SCK_HOME,          SCI_ASHIFT,     SCI_VCHOMERECTEXTEND},
 130     {SCK_END,           SCI_NORM,       SCI_LINEEND},
 131     {SCK_END,           SCI_SHIFT,      SCI_LINEENDEXTEND},
 132     {SCK_END,           SCI_CTRL,       SCI_DOCUMENTEND},
 133     {SCK_END,           SCI_CSHIFT,     SCI_DOCUMENTENDEXTEND},
 134     {SCK_END,           SCI_ALT,        SCI_LINEENDDISPLAY},
 135     {SCK_END,           SCI_ASHIFT,     SCI_LINEENDRECTEXTEND},
 136     {SCK_PRIOR,         SCI_NORM,       SCI_PAGEUP},
 137     {SCK_PRIOR,         SCI_SHIFT,      SCI_PAGEUPEXTEND},
 138     {SCK_PRIOR,         SCI_ASHIFT,     SCI_PAGEUPRECTEXTEND},
 139     {SCK_NEXT,          SCI_NORM,       SCI_PAGEDOWN},
 140     {SCK_NEXT,          SCI_SHIFT,      SCI_PAGEDOWNEXTEND},
 141     {SCK_NEXT,          SCI_ASHIFT,     SCI_PAGEDOWNRECTEXTEND},
 142     {SCK_DELETE,        SCI_NORM,       SCI_CLEAR},
 143     {SCK_DELETE,        SCI_SHIFT,      SCI_CUT},
 144     {SCK_DELETE,        SCI_CTRL,       SCI_DELWORDRIGHT},
 145     {SCK_DELETE,        SCI_CSHIFT,     SCI_DELLINERIGHT},
 146     {SCK_INSERT,                SCI_NORM,       SCI_EDITTOGGLEOVERTYPE},
 147     {SCK_INSERT,                SCI_SHIFT,      SCI_PASTE},
 148     {SCK_INSERT,                SCI_CTRL,       SCI_COPY},
 149     {SCK_ESCAPE,        SCI_NORM,       SCI_CANCEL},
 150     {SCK_BACK,          SCI_NORM,       SCI_DELETEBACK},
 151     {SCK_BACK,          SCI_SHIFT,      SCI_DELETEBACK},
 152     {SCK_BACK,          SCI_CTRL,       SCI_DELWORDLEFT},
 153     {SCK_BACK,          SCI_ALT,        SCI_UNDO},
 154     {SCK_BACK,          SCI_CSHIFT,     SCI_DELLINELEFT},
 155     {'Z',                       SCI_CTRL,       SCI_UNDO},
 156 #if OS_X_KEYS
 157     {'Z',                       SCI_CSHIFT,     SCI_REDO},
 158 #else
 159     {'Y',                       SCI_CTRL,       SCI_REDO},
 160 #endif
 161     {'X',                       SCI_CTRL,       SCI_CUT},
 162     {'C',                       SCI_CTRL,       SCI_COPY},
 163     {'V',                       SCI_CTRL,       SCI_PASTE},
 164     {'A',                       SCI_CTRL,       SCI_SELECTALL},
 165     {SCK_TAB,           SCI_NORM,       SCI_TAB},
 166     {SCK_TAB,           SCI_SHIFT,      SCI_BACKTAB},
 167     {SCK_RETURN,        SCI_NORM,       SCI_NEWLINE},
 168     {SCK_RETURN,        SCI_SHIFT,      SCI_NEWLINE},
 169     {SCK_ADD,           SCI_CTRL,       SCI_ZOOMIN},
 170     {SCK_SUBTRACT,      SCI_CTRL,       SCI_ZOOMOUT},
 171     {SCK_DIVIDE,        SCI_CTRL,       SCI_SETZOOM},
 172     {'L',                       SCI_CTRL,       SCI_LINECUT},
 173     {'L',                       SCI_CSHIFT,     SCI_LINEDELETE},
 174     {'T',                       SCI_CSHIFT,     SCI_LINECOPY},
 175     {'T',                       SCI_CTRL,       SCI_LINETRANSPOSE},
 176     {'D',                       SCI_CTRL,       SCI_SELECTIONDUPLICATE},
 177     {'U',                       SCI_CTRL,       SCI_LOWERCASE},
 178     {'U',                       SCI_CSHIFT,     SCI_UPPERCASE},
 179     {0,0,0},
 180 };
 181