tge/engine/gui/controls/guiTextEditCtrl.cc
2017-04-17 06:17:10 -06:00

1370 lines
36 KiB
C++
Executable File

//-----------------------------------------------------------------------------
// Torque Game Engine
// Copyright (C) GarageGames.com, Inc.
//-----------------------------------------------------------------------------
#include "console/consoleTypes.h"
#include "console/console.h"
#include "dgl/dgl.h"
#include "gui/core/guiCanvas.h"
#include "gui/controls/guiMLTextCtrl.h"
#include "gui/controls/guiTextEditCtrl.h"
#include "gui/core/guiDefaultControlRender.h"
#include "core/frameAllocator.h"
#include "core/unicode.h"
IMPLEMENT_CONOBJECT(GuiTextEditCtrl);
U32 GuiTextEditCtrl::smNumAwake = 0;
GuiTextEditCtrl::GuiTextEditCtrl()
{
mInsertOn = true;
mBlockStart = 0;
mBlockEnd = 0;
mCursorPos = 0;
mCursorOn = false;
mNumFramesElapsed = 0;
mDragHit = false;
mTabComplete = false;
mScrollDir = 0;
mUndoBlockStart = 0;
mUndoBlockEnd = 0;
mUndoCursorPos = 0;
mPasswordText = false;
mSinkAllKeyEvents = false;
mActive = true;
mTextOffsetReset = true;
mHistoryDirty = false;
mHistorySize = 0;
mHistoryLast = -1;
mHistoryIndex = 0;
mHistoryBuf = NULL;
mValidateCommand = StringTable->insert("");
mEscapeCommand = StringTable->insert( "" );
#if defined(__MACOSX__)
UTF8 bullet[4] = { 0xE2, 0x80, 0xA2, 0 };
mPasswordMask = StringTable->insert( bullet );
#else
mPasswordMask = StringTable->insert( "*" );
#endif
mDeniedSound = dynamic_cast<AudioProfile*>( Sim::findObject( "InputDeniedSound" ) );
mEditCursor = NULL;
}
GuiTextEditCtrl::~GuiTextEditCtrl()
{
//delete the history buffer if it exists
if (mHistoryBuf)
{
for (S32 i = 0; i < mHistorySize; i++)
delete [] mHistoryBuf[i];
delete [] mHistoryBuf;
}
}
void GuiTextEditCtrl::initPersistFields()
{
Parent::initPersistFields();
addField("validate", TypeString, Offset(mValidateCommand, GuiTextEditCtrl));
addField("escapeCommand", TypeString, Offset(mEscapeCommand, GuiTextEditCtrl));
addField("historySize", TypeS32, Offset(mHistorySize, GuiTextEditCtrl));
addField("password", TypeBool, Offset(mPasswordText, GuiTextEditCtrl));
addField("tabComplete", TypeBool, Offset(mTabComplete, GuiTextEditCtrl));
addField("deniedSound", TypeAudioProfilePtr, Offset(mDeniedSound, GuiTextEditCtrl));
addField("sinkAllKeyEvents", TypeBool, Offset(mSinkAllKeyEvents, GuiTextEditCtrl));
addField("password", TypeBool, Offset(mPasswordText, GuiTextEditCtrl));
addField("passwordMask", TypeString, Offset(mPasswordMask, GuiTextEditCtrl));
}
bool GuiTextEditCtrl::onAdd()
{
if ( ! Parent::onAdd() )
return false;
//create the history buffer
if ( mHistorySize > 0 )
{
mHistoryBuf = new UTF16*[mHistorySize];
for ( S32 i = 0; i < mHistorySize; i++ )
{
mHistoryBuf[i] = new UTF16[GuiTextCtrl::MAX_STRING_LENGTH + 1];
mHistoryBuf[i][0] = '\0';
}
}
setText(mText);
return true;
}
void GuiTextEditCtrl::onStaticModified(const char* slotName)
{
if(!dStricmp(slotName, "text"))
setText(mText);
}
bool GuiTextEditCtrl::onWake()
{
if (! Parent::onWake())
return false;
// If this is the first awake text edit control, enable keyboard translation
if (smNumAwake == 0)
Platform::enableKeyboardTranslation();
++smNumAwake;
return true;
}
void GuiTextEditCtrl::onSleep()
{
Parent::onSleep();
// If this is the last awake text edit control, disable keyboard translation
--smNumAwake;
if (smNumAwake == 0)
Platform::disableKeyboardTranslation();
}
void GuiTextEditCtrl::execConsoleCallback()
{
// Execute the console command!
if ( mConsoleCommand[0] )
{
char buf[16];
dSprintf( buf, sizeof( buf ), "%d", getId() );
Con::setVariable( "$ThisControl", buf );
Con::evaluate( mConsoleCommand, false );
}
// Update the console variable:
if ( mConsoleVariable[0] )
Con::setVariable( mConsoleVariable, mTextBuffer.getPtr8() );
}
void GuiTextEditCtrl::updateHistory( StringBuffer *inTxt, bool moveIndex )
{
const UTF16* txt = inTxt->getPtr();
if(!txt)
return;
if(!mHistorySize)
return;
// see if it's already in
if(mHistoryLast == -1 || dStrcmp(txt, mHistoryBuf[mHistoryLast]))
{
if(mHistoryLast == mHistorySize-1) // we're at the history limit... shuffle the pointers around:
{
UTF16 *first = mHistoryBuf[0];
for(U32 i = 0; i < mHistorySize - 1; i++)
mHistoryBuf[i] = mHistoryBuf[i+1];
mHistoryBuf[mHistorySize-1] = first;
if(mHistoryIndex > 0)
mHistoryIndex--;
}
else
mHistoryLast++;
inTxt->getCopy(mHistoryBuf[mHistoryLast], GuiTextCtrl::MAX_STRING_LENGTH);
mHistoryBuf[mHistoryLast][GuiTextCtrl::MAX_STRING_LENGTH] = '\0';
}
if(moveIndex)
mHistoryIndex = mHistoryLast + 1;
}
void GuiTextEditCtrl::getText( char *dest )
{
if ( dest )
mTextBuffer.getCopy8((UTF8*)dest, GuiTextCtrl::MAX_STRING_LENGTH+1);
}
void GuiTextEditCtrl::setText( const UTF8 *txt )
{
if(txt && txt[0] != 0)
{
Parent::setText(txt);
mTextBuffer.set( txt );
}
else
mTextBuffer.set( "" );
mCursorPos = mTextBuffer.length();
}
void GuiTextEditCtrl::setText( const UTF16* txt)
{
if(txt && txt[0] != 0)
{
UTF8* txt8 = convertUTF16toUTF8( txt );
Parent::setText( txt8 );
delete [] txt8;
mTextBuffer.set( txt );
}
else
{
Parent::setText("");
mTextBuffer.set("");
}
mCursorPos = mTextBuffer.length();
}
//*** DAW: Select all text
void GuiTextEditCtrl::selectAllText()
{
mBlockStart = 0;
mBlockEnd = dStrlen(mText);
setUpdate();
}
//*** DAW: Force a validate on the current text
void GuiTextEditCtrl::forceValidateText()
{
if ( mValidateCommand[0] )
{
char buf[16];
dSprintf(buf, sizeof(buf), "%d", getId());
Con::setVariable("$ThisControl", buf);
Con::evaluate( mValidateCommand, false );
}
}
void GuiTextEditCtrl::reallySetCursorPos( const S32 newPos )
{
S32 charCount = mTextBuffer.length();
S32 realPos = newPos > charCount ? charCount : newPos < 0 ? 0 : newPos;
if ( realPos != mCursorPos )
{
mCursorPos = realPos;
setUpdate();
}
}
S32 GuiTextEditCtrl::setCursorPos( const Point2I &offset )
{
Point2I ctrlOffset = localToGlobalCoord( Point2I( 0, 0 ) );
S32 charCount = mTextBuffer.length();
S32 charLength = 0;
S32 curX;
curX = offset.x - ctrlOffset.x;
setUpdate();
//if the cursor is too far to the left
if ( curX < 0 )
return -1;
//if the cursor is too far to the right
if ( curX >= ctrlOffset.x + mBounds.extent.x )
return -2;
curX = offset.x - mTextOffset.x;
S32 count=0;
if(mTextBuffer.length() == 0)
return 0;
for(count=0; count<mTextBuffer.length(); count++)
{
UTF16 c = mTextBuffer.getChar(count);
if(!mPasswordText && !mFont->isValidChar(c))
continue;
if(mPasswordText)
charLength += mFont->getCharXIncrement( mPasswordMask[0] );
else
charLength += mFont->getCharXIncrement( c );
if ( charLength > curX )
break;
}
return count;
}
void GuiTextEditCtrl::onMouseDown( const GuiEvent &event )
{
mDragHit = false;
//*** DAW: If we have a double click, select all text. Otherwise
//*** act as before by clearing any selection.
bool doubleClick = (event.mouseClickCount > 1);
if(doubleClick)
{
selectAllText();
} else
{
//undo any block function
mBlockStart = 0;
mBlockEnd = 0;
}
//find out where the cursor should be
S32 pos = setCursorPos( event.mousePoint );
// if the position is to the left
if ( pos == -1 )
mCursorPos = 0;
else if ( pos == -2 ) //else if the position is to the right
mCursorPos = mTextBuffer.length();
else //else set the mCursorPos
mCursorPos = pos;
//save the mouseDragPos
mMouseDragStart = mCursorPos;
// lock the mouse
mouseLock();
//set the drag var
mDragHit = true;
//let the parent get the event
setFirstResponder();
}
void GuiTextEditCtrl::onMouseDragged( const GuiEvent &event )
{
S32 pos = setCursorPos( event.mousePoint );
// if the position is to the left
if ( pos == -1 )
mScrollDir = -1;
else if ( pos == -2 ) // the position is to the right
mScrollDir = 1;
else // set the new cursor position
{
mScrollDir = 0;
mCursorPos = pos;
}
// update the block:
mBlockStart = getMin( mCursorPos, mMouseDragStart );
mBlockEnd = getMax( mCursorPos, mMouseDragStart );
if ( mBlockStart < 0 )
mBlockStart = 0;
if ( mBlockStart == mBlockEnd )
mBlockStart = mBlockEnd = 0;
//let the parent get the event
Parent::onMouseDragged(event);
}
void GuiTextEditCtrl::onMouseUp(const GuiEvent &event)
{
event;
mDragHit = false;
mScrollDir = 0;
mouseUnlock();
}
void GuiTextEditCtrl::saveUndoState()
{
//save the current state
mUndoText.set(&mTextBuffer);
mUndoBlockStart = mBlockStart;
mUndoBlockEnd = mBlockEnd;
mUndoCursorPos = mCursorPos;
}
void GuiTextEditCtrl::onCopy(bool andCut)
{
// Don't copy/cut password field!
if(mPasswordText)
return;
UTF8 buf[GuiTextCtrl::MAX_STRING_LENGTH + 1];
if (mBlockEnd > 0)
{
//save the current state
saveUndoState();
//copy the text to the clipboard
UTF8* clipBuff = mTextBuffer.createSubstring8(mBlockStart, mBlockEnd - mBlockStart);
Platform::setClipboard(clipBuff);
delete[] clipBuff;
//if we pressed the cut shortcut, we need to cut the selected text from the control...
if (andCut)
{
mTextBuffer.cut(mBlockStart, mBlockEnd - mBlockStart);
mCursorPos = mBlockStart;
}
mBlockStart = 0;
mBlockEnd = 0;
}
}
void GuiTextEditCtrl::onPaste()
{
//first, make sure there's something in the clipboard to copy...
const UTF8 *clipboard = Platform::getClipboard();
if(dStrlen(clipboard) <= 0)
return;
//save the current state
saveUndoState();
//delete anything hilited
if (mBlockEnd > 0)
{
mTextBuffer.cut(mBlockStart, mBlockEnd - mBlockStart);
mCursorPos = mBlockStart;
mBlockStart = 0;
mBlockEnd = 0;
}
// We'll be converting to UTF16, and maybe trimming the string,
// so let's use a StringBuffer, for convinience.
StringBuffer pasteText(clipboard);
// Space left after we remove the highlighted text
S32 stringLen = mTextBuffer.length();
// Trim down to fit in a buffer of size mMaxStrLen
S32 pasteLen = pasteText.length();
if(stringLen + pasteLen > mMaxStrLen)
{
pasteLen = mMaxStrLen - stringLen;
pasteText.cut(pasteLen, pasteText.length() - pasteLen);
}
if (mCursorPos == stringLen)
{
mTextBuffer.append(pasteText);
}
else
{
mTextBuffer.insert(mCursorPos, pasteText);
}
mCursorPos += pasteLen;
}
void GuiTextEditCtrl::onUndo()
{
StringBuffer tempBuffer;
S32 tempBlockStart;
S32 tempBlockEnd;
S32 tempCursorPos;
//save the current
tempBuffer.set(&mTextBuffer);
tempBlockStart = mBlockStart;
tempBlockEnd = mBlockEnd;
tempCursorPos = mCursorPos;
//restore the prev
mTextBuffer.set(&mUndoText);
mBlockStart = mUndoBlockStart;
mBlockEnd = mUndoBlockEnd;
mCursorPos = mUndoCursorPos;
//update the undo
mUndoText.set(&tempBuffer);
mUndoBlockStart = tempBlockStart;
mUndoBlockEnd = tempBlockEnd;
mUndoCursorPos = tempCursorPos;
}
bool GuiTextEditCtrl::onKeyDown(const GuiEvent &event)
{
if(! isActive())
return false;
S32 stringLen = mTextBuffer.length();
setUpdate();
// Ugly, but now I'm cool like MarkF.
if(event.keyCode == KEY_BACKSPACE)
goto dealWithBackspace;
if (event.modifier & SI_SHIFT)
{
switch (event.keyCode)
{
case KEY_TAB:
if ( mTabComplete )
{
Con::executef( this, 2, "onTabComplete", "1" );
return( true );
}
break; //*** DAW: We don't want to fall through if we don't handle the TAB here.
case KEY_HOME:
mBlockStart = 0;
mBlockEnd = mCursorPos;
mCursorPos = 0;
return true;
case KEY_END:
mBlockStart = mCursorPos;
mBlockEnd = stringLen;
mCursorPos = stringLen;
return true;
case KEY_LEFT:
if ((mCursorPos > 0) & (stringLen > 0))
{
//if we already have a selected block
if (mCursorPos == mBlockEnd)
{
mCursorPos--;
mBlockEnd--;
if (mBlockEnd == mBlockStart)
{
mBlockStart = 0;
mBlockEnd = 0;
}
}
else {
mCursorPos--;
mBlockStart = mCursorPos;
if (mBlockEnd == 0)
{
mBlockEnd = mCursorPos + 1;
}
}
}
return true;
case KEY_RIGHT:
if (mCursorPos < stringLen)
{
if ((mCursorPos == mBlockStart) && (mBlockEnd > 0))
{
mCursorPos++;
mBlockStart++;
if (mBlockStart == mBlockEnd)
{
mBlockStart = 0;
mBlockEnd = 0;
}
}
else
{
if (mBlockEnd == 0)
{
mBlockStart = mCursorPos;
mBlockEnd = mCursorPos;
}
mCursorPos++;
mBlockEnd++;
}
}
return true;
}
}
else if (event.modifier & SI_CTRL)
{
switch(event.keyCode)
{
// Added UNIX emacs key bindings - just a little hack here...
// BJGTODO: Add vi bindings.
// Ctrl-B - move one character back
case KEY_B:
{
GuiEvent new_event;
new_event.modifier = 0;
new_event.keyCode = KEY_LEFT;
return(onKeyDown(new_event));
}
// Ctrl-F - move one character forward
case KEY_F:
{
GuiEvent new_event;
new_event.modifier = 0;
new_event.keyCode = KEY_RIGHT;
return(onKeyDown(new_event));
}
// Ctrl-A - move to the beginning of the line
case KEY_A:
{
GuiEvent new_event;
new_event.modifier = 0;
new_event.keyCode = KEY_HOME;
return(onKeyDown(new_event));
}
// Ctrl-E - move to the end of the line
case KEY_E:
{
GuiEvent new_event;
new_event.modifier = 0;
new_event.keyCode = KEY_END;
return(onKeyDown(new_event));
}
// Ctrl-P - move backward in history
case KEY_P:
{
GuiEvent new_event;
new_event.modifier = 0;
new_event.keyCode = KEY_UP;
return(onKeyDown(new_event));
}
// Ctrl-N - move forward in history
case KEY_N:
{
GuiEvent new_event;
new_event.modifier = 0;
new_event.keyCode = KEY_DOWN;
return(onKeyDown(new_event));
}
// Ctrl-D - delete under cursor
case KEY_D:
{
GuiEvent new_event;
new_event.modifier = 0;
new_event.keyCode = KEY_DELETE;
return(onKeyDown(new_event));
}
case KEY_U:
{
GuiEvent new_event;
new_event.modifier = SI_CTRL;
new_event.keyCode = KEY_DELETE;
return(onKeyDown(new_event));
}
// End added UNIX emacs key bindings
#if !defined(TORQUE_OS_MAC)
// windows style cut / copy / paste / undo keybinds
case KEY_C:
case KEY_X:
{
// copy, and cut the text if we hit ctrl-x
onCopy( event.keyCode==KEY_X );
return true;
}
case KEY_V:
{
onPaste();
// Execute the console command!
execConsoleCallback();
return true;
}
case KEY_Z:
if (! mDragHit)
{
onUndo();
return true;
}
#endif
case KEY_DELETE:
case KEY_BACKSPACE:
//save the current state
saveUndoState();
//delete everything in the field
mTextBuffer.set("");
mCursorPos = 0;
mBlockStart = 0;
mBlockEnd = 0;
execConsoleCallback();
return true;
}
}
#if defined(TORQUE_OS_MAC)
// mac style cut / copy / paste / undo keybinds
else if (event.modifier & SI_ALT)
{
// Added Mac cut/copy/paste/undo keys
// Mac command key maps to alt in torque.
switch(event.keyCode)
{
case KEY_C:
case KEY_X:
{
// copy, and cut the text if we hit cmd-x
onCopy( event.keyCode==KEY_X );
return true;
}
case KEY_V:
{
onPaste();
// Execute the console command!
execConsoleCallback();
return true;
}
case KEY_Z:
if (! mDragHit)
{
onUndo();
return true;
}
}
}
#endif
else
{
switch(event.keyCode)
{
case KEY_ESCAPE:
if ( mEscapeCommand[0] )
{
Con::evaluate( mEscapeCommand );
return( true );
}
return( Parent::onKeyDown( event ) );
case KEY_RETURN:
case KEY_NUMPADENTER:
//first validate
if (mProfile->mReturnTab)
{
onLoseFirstResponder();
}
updateHistory(&mTextBuffer, true);
mHistoryDirty = false;
//next exec the alt console command
if ( mAltConsoleCommand[0] )
{
char buf[16];
dSprintf( buf, sizeof( buf ), "%d", getId() );
Con::setVariable( "$ThisControl", buf );
Con::evaluate( mAltConsoleCommand, false );
}
// Notify of Return
if ( isMethod("onReturn") )
Con::executef( this, 2, "onReturn" );
if (mProfile->mReturnTab)
{
GuiCanvas *root = getRoot();
if (root)
{
root->tabNext();
return true;
}
}
return true;
case KEY_UP:
{
if(mHistoryDirty)
{
updateHistory(&mTextBuffer, false);
mHistoryDirty = false;
}
mHistoryIndex--;
if(mHistoryIndex >= 0 && mHistoryIndex <= mHistoryLast)
setText(mHistoryBuf[mHistoryIndex]);
else if(mHistoryIndex < 0)
mHistoryIndex = 0;
return true;
}
case KEY_DOWN:
if(mHistoryDirty)
{
updateHistory(&mTextBuffer, false);
mHistoryDirty = false;
}
mHistoryIndex++;
if(mHistoryIndex > mHistoryLast)
{
mHistoryIndex = mHistoryLast + 1;
setText("");
}
else
setText(mHistoryBuf[mHistoryIndex]);
return true;
case KEY_LEFT:
mBlockStart = 0;
mBlockEnd = 0;
if (mCursorPos > 0)
{
mCursorPos--;
}
return true;
case KEY_RIGHT:
mBlockStart = 0;
mBlockEnd = 0;
if (mCursorPos < stringLen)
{
mCursorPos++;
}
return true;
case KEY_BACKSPACE:
dealWithBackspace:
//save the current state
saveUndoState();
if (mBlockEnd > 0)
{
mTextBuffer.cut(mBlockStart, mBlockEnd-mBlockStart);
mCursorPos = mBlockStart;
mBlockStart = 0;
mBlockEnd = 0;
mHistoryDirty = true;
// Execute the console command!
execConsoleCallback();
}
else if (mCursorPos > 0)
{
mTextBuffer.cut(mCursorPos-1, 1);
mCursorPos--;
mHistoryDirty = true;
// Execute the console command!
execConsoleCallback();
}
return true;
case KEY_DELETE:
//save the current state
saveUndoState();
if (mBlockEnd > 0)
{
mHistoryDirty = true;
mTextBuffer.cut(mBlockStart, mBlockEnd-mBlockStart);
mCursorPos = mBlockStart;
mBlockStart = 0;
mBlockEnd = 0;
// Execute the console command!
execConsoleCallback();
}
else if (mCursorPos < stringLen)
{
mHistoryDirty = true;
mTextBuffer.cut(mCursorPos, 1);
// Execute the console command!
execConsoleCallback();
}
return true;
case KEY_INSERT:
mInsertOn = !mInsertOn;
return true;
case KEY_HOME:
mBlockStart = 0;
mBlockEnd = 0;
mCursorPos = 0;
return true;
case KEY_END:
mBlockStart = 0;
mBlockEnd = 0;
mCursorPos = stringLen;
return true;
}
}
switch ( event.keyCode )
{
case KEY_TAB:
if ( mTabComplete )
{
Con::executef( this, 2, "onTabComplete", "0" );
return( true );
}
case KEY_UP:
case KEY_DOWN:
case KEY_ESCAPE:
return Parent::onKeyDown( event );
}
if ( mFont->isValidChar( event.ascii ) )
{
// Get the character ready to add to a UTF8 string.
UTF16 convertedChar[2] = { event.ascii, 0 };
//see if it's a number field
if ( mProfile->mNumbersOnly )
{
if (event.ascii == '-')
{
//a minus sign only exists at the beginning, and only a single minus sign
if ( mCursorPos != 0 )
{
playDeniedSound();
return true;
}
if ( mInsertOn && ( mTextBuffer.getChar(0) == '-' ) )
{
playDeniedSound();
return true;
}
}
// BJTODO: This is probably not unicode safe.
else if ( event.ascii < '0' || event.ascii > '9' )
{
playDeniedSound();
return true;
}
}
//save the current state
saveUndoState();
//delete anything highlighted
if ( mBlockEnd > 0 )
{
mTextBuffer.cut(mBlockStart, mBlockEnd-mBlockStart);
mCursorPos = mBlockStart;
mBlockStart = 0;
mBlockEnd = 0;
}
if ( ( mInsertOn && ( stringLen < mMaxStrLen ) ) ||
( !mInsertOn && ( mCursorPos < mMaxStrLen ) ) )
{
if ( mCursorPos == stringLen )
{
mTextBuffer.append(convertedChar);
mCursorPos++;
}
else
{
if ( mInsertOn )
{
mTextBuffer.insert(mCursorPos, convertedChar);
mCursorPos++;
}
else
{
mTextBuffer.cut(mCursorPos, 1);
mTextBuffer.insert(mCursorPos, convertedChar);
mCursorPos++;
}
}
}
else
playDeniedSound();
//reset the history index
mHistoryDirty = true;
//execute the console command if it exists
execConsoleCallback();
return true;
}
//not handled - pass the event to it's parent
// Or eat it if that's appropriate.
if (mSinkAllKeyEvents)
return true;
return Parent::onKeyDown( event );
}
void GuiTextEditCtrl::setFirstResponder()
{
Parent::setFirstResponder();
Platform::enableKeyboardTranslation();
}
void GuiTextEditCtrl::onLoseFirstResponder()
{
Platform::disableKeyboardTranslation();
//first, update the history
updateHistory( &mTextBuffer, true );
//execute the validate command
if ( mValidateCommand[0] )
{
char buf[16];
dSprintf(buf, sizeof(buf), "%d", getId());
Con::setVariable("$ThisControl", buf);
Con::evaluate( mValidateCommand, false );
}
if( isMethod( "onValidate" ) )
Con::executef( this, 2, "onValidate" );
// Redraw the control:
setUpdate();
}
void GuiTextEditCtrl::parentResized(const Point2I &oldParentExtent, const Point2I &newParentExtent)
{
Parent::parentResized( oldParentExtent, newParentExtent );
mTextOffsetReset = true;
}
void GuiTextEditCtrl::onRender(Point2I offset, const RectI & /*updateRect*/)
{
RectI ctrlRect( offset, mBounds.extent );
//if opaque, fill the update rect with the fill color
if ( mProfile->mOpaque )
dglDrawRectFill( ctrlRect, mProfile->mFillColor );
//if there's a border, draw the border
if ( mProfile->mBorder )
renderBorder( ctrlRect, mProfile );
drawText( ctrlRect, isFirstResponder() );
}
void GuiTextEditCtrl::onPreRender()
{
if ( isFirstResponder() )
{
U32 timeElapsed = Platform::getVirtualMilliseconds() - mTimeLastCursorFlipped;
mNumFramesElapsed++;
if ( ( timeElapsed > 500 ) && ( mNumFramesElapsed > 3 ) )
{
mCursorOn = !mCursorOn;
mTimeLastCursorFlipped = Platform::getVirtualMilliseconds();
mNumFramesElapsed = 0;
setUpdate();
}
//update the cursor if the text is scrolling
if ( mDragHit )
{
if ( ( mScrollDir < 0 ) && ( mCursorPos > 0 ) )
mCursorPos--;
else if ( ( mScrollDir > 0 ) && ( mCursorPos < (S32) mTextBuffer.length() ) )
mCursorPos++;
}
}
}
void GuiTextEditCtrl::drawText( const RectI &drawRect, bool isFocused )
{
StringBuffer textBuffer;
Point2I drawPoint = drawRect.point;
Point2I paddingLeftTop, paddingRightBottom;
// Just a little sanity.
if(mCursorPos > mTextBuffer.length())
mCursorPos = mTextBuffer.length();
// Apply password masking (make the masking char optional perhaps?)
if(mPasswordText)
{
for(U32 i = 0; i<mTextBuffer.length(); i++)
textBuffer.append(mPasswordMask);
}
else
{
// Or else just copy it over.
textBuffer.set(&mTextBuffer);
}
paddingLeftTop.set(( mProfile->mTextOffset.x != 0 ? mProfile->mTextOffset.x : 3 ), mProfile->mTextOffset.y);
paddingRightBottom = paddingLeftTop;
// Center vertically:
drawPoint.y += ( ( drawRect.extent.y - paddingLeftTop.y - paddingRightBottom.y - mFont->getHeight() ) / 2 ) + paddingLeftTop.y;
// Align horizontally:
S32 textWidth = mFont->getStrNWidth(textBuffer.getPtr(), textBuffer.length());
if ( drawRect.extent.x - paddingLeftTop.x > textWidth )
{
switch( mProfile->mAlignment )
{
case GuiControlProfile::RightJustify:
drawPoint.x += ( drawRect.extent.x - textWidth - paddingRightBottom.x );
break;
case GuiControlProfile::CenterJustify:
drawPoint.x += ( ( drawRect.extent.x - textWidth ) / 2 );
break;
default:
case GuiControlProfile::LeftJustify :
drawPoint.x += paddingLeftTop.x;
break;
}
}
else
drawPoint.x += paddingLeftTop.x;
ColorI fontColor = mActive ? mProfile->mFontColor : mProfile->mFontColorNA;
// now draw the text
Point2I cursorStart, cursorEnd;
mTextOffset.y = drawPoint.y;
if ( mTextOffsetReset )
{
mTextOffset.x = drawPoint.x;
mTextOffsetReset = false;
}
if ( drawRect.extent.x - paddingLeftTop.x > textWidth )
mTextOffset.x = drawPoint.x;
else
{
// Alignment affects large text
if ( mProfile->mAlignment == GuiControlProfile::RightJustify
|| mProfile->mAlignment == GuiControlProfile::CenterJustify )
{
if ( mTextOffset.x + textWidth < (drawRect.point.x + drawRect.extent.x) - paddingRightBottom.x)
mTextOffset.x = (drawRect.point.x + drawRect.extent.x) - paddingRightBottom.x - textWidth;
}
}
// calculate the cursor
if ( isFocused )
{
// Where in the string are we?
S32 cursorOffset=0, charWidth=0;
UTF16 tempChar = mTextBuffer.getChar(mCursorPos);
// Alright, we want to terminate things momentarily.
if(mCursorPos > 0)
{
cursorOffset = mFont->getStrNWidth(textBuffer.getPtr(), mCursorPos);
}
else
cursorOffset = 0;
if ( tempChar )
charWidth = mFont->getCharWidth( tempChar );
else
charWidth = paddingRightBottom.x;
if( mTextOffset.x + cursorOffset + charWidth >= (drawRect.point.x + drawRect.extent.x) - paddingLeftTop.x )
{
// Cursor somewhere beyond the textcontrol,
// skip forward roughly 25% of the total width (if possible)
S32 skipForward = drawRect.extent.x / 4;
if ( cursorOffset + skipForward > textWidth )
mTextOffset.x = (drawRect.point.x + drawRect.extent.x) - paddingRightBottom.x - textWidth;
else
mTextOffset.x -= skipForward;
}
else if( mTextOffset.x + cursorOffset < drawRect.point.x + paddingLeftTop.x )
{
// Cursor somewhere before the textcontrol
// skip backward roughly 25% of the total width (if possible)
S32 skipBackward = drawRect.extent.x / 4;
if ( cursorOffset - skipBackward < 0 )
mTextOffset.x = drawRect.point.x + paddingLeftTop.x;
else
mTextOffset.x += skipBackward;
}
cursorStart.x = mTextOffset.x + cursorOffset;
cursorEnd.x = cursorStart.x;
S32 cursorHeight = mFont->getHeight();
if ( cursorHeight < drawRect.extent.y )
{
cursorStart.y = drawPoint.y;
cursorEnd.y = cursorStart.y + cursorHeight;
}
else
{
cursorStart.y = drawRect.point.y;
cursorEnd.y = cursorStart.y + drawRect.extent.y;
}
}
//draw the text
if ( !isFocused )
mBlockStart = mBlockEnd = 0;
//also verify the block start/end
if ((mBlockStart > textBuffer.length() || (mBlockEnd > textBuffer.length()) || (mBlockStart > mBlockEnd)))
mBlockStart = mBlockEnd = 0;
UTF16 temp;
Point2I tempOffset = mTextOffset;
//draw the portion before the highlight
if ( mBlockStart > 0 )
{
dglSetBitmapModulation( fontColor );
const UTF16* preString2 = textBuffer.getPtr();
dglDrawTextN( mFont, tempOffset, preString2, mBlockStart, mProfile->mFontColors);
tempOffset.x += mFont->getStrNWidth(preString2, mBlockStart);
}
//draw the hilighted portion
if ( mBlockEnd > 0 )
{
const UTF16* highlightBuff = textBuffer.getPtr() + mBlockStart;
U32 highlightBuffLen = mBlockEnd-mBlockStart;
S32 highlightWidth = mFont->getStrNWidth(highlightBuff, highlightBuffLen);
dglDrawRectFill( Point2I( tempOffset.x, drawRect.point.y ),
Point2I( tempOffset.x + highlightWidth, drawRect.point.y + drawRect.extent.y - 1),
mProfile->mFillColorHL );
dglSetBitmapModulation( mProfile->mFontColorHL );
dglDrawTextN( mFont, tempOffset, highlightBuff, highlightBuffLen, mProfile->mFontColors );
tempOffset.x += highlightWidth;
}
//draw the portion after the highlite
if(mBlockEnd < mTextBuffer.length())
{
const UTF16* finalBuff = textBuffer.getPtr() + mBlockEnd;
U32 finalBuffLen = mTextBuffer.length() - mBlockEnd;
dglSetBitmapModulation( fontColor );
dglDrawTextN( mFont, tempOffset, finalBuff, finalBuffLen, mProfile->mFontColors );
}
//draw the cursor
if ( isFocused && mCursorOn )
dglDrawLine( cursorStart, cursorEnd, mProfile->mCursorColor );
}
bool GuiTextEditCtrl::hasText()
{
return (mTextBuffer.length());
}
void GuiTextEditCtrl::playDeniedSound()
{
if ( mDeniedSound )
{
AUDIOHANDLE handle = alxCreateSource( mDeniedSound );
alxPlay( handle );
}
}
bool GuiTextEditCtrl::initCursors()
{
if ( mEditCursor == NULL )
{
SimObject *obj;
obj = Sim::findObject("TextEditCursor");
mEditCursor = dynamic_cast<GuiCursor*>(obj);
return( mEditCursor != NULL );
}
else
return(true);
}
void GuiTextEditCtrl::getCursor(GuiCursor *&cursor, bool &showCursor, const GuiEvent &lastGuiEvent)
{
showCursor = true;
if( initCursors() )
{
Point2I mousePos = lastGuiEvent.mousePoint;
RectI winRect = mBounds;
winRect.point = localToGlobalCoord( winRect.point );
if( winRect.pointInRect( mousePos ) )
cursor = mEditCursor;
else
cursor = NULL;
}
}
const char *GuiTextEditCtrl::getScriptValue()
{
return StringTable->insert(mTextBuffer.getPtr8());
}
void GuiTextEditCtrl::setScriptValue(const char *value)
{
mTextBuffer.set(value);
mCursorPos = mTextBuffer.length();
}
ConsoleMethod( GuiTextEditCtrl, getText, const char*, 2, 2, "textEditCtrl.getText()" )
{
argc; argv;
if( !object->hasText() )
return NULL;
char *retBuffer = Con::getReturnBuffer( GuiTextEditCtrl::MAX_STRING_LENGTH );
object->getText( retBuffer );
if (retBuffer && dStrstr((const char*)retBuffer, "foo"))
U32 i = 0;
return retBuffer;
}
ConsoleMethod( GuiTextEditCtrl, getCursorPos, S32, 2, 2, "textEditCtrl.getCursorPos()" )
{
argc; argv;
return( object->getCursorPos() );
}
ConsoleMethod( GuiTextEditCtrl, setCursorPos, void, 3, 3, "textEditCtrl.setCursorPos( newPos )" )
{
argc;
object->reallySetCursorPos( dAtoi( argv[2] ) );
}
ConsoleMethod( GuiTextEditCtrl, selectAllText, void, 2, 2, "textEditCtrl.selectAllText()" )
{
argc; argv;
object->selectAllText();
}
ConsoleMethod( GuiTextEditCtrl, forceValidateText, void, 2, 2, "textEditCtrl.forceValidateText()" )
{
argc; argv;
object->forceValidateText();
}