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Monday the 6th of February 2012 @ 08:51am

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LibN2L N2L Home Older News Downloads Documentation (n2l5) Class Hierarchy Compound List File List n2l:: Members Functions Whole n2l:: Ref Documentation (libN2L-4) Class Hierarchy Compound List File List n2l:: Members Functions Whole n2l:: Ref Bugtracker Project Page Report a Bug Bug List Related Things Life 2130 Devel Game Journal

LibN2L-4 Library Code Reference Classes Compounds Files Members Method Index Full Reference cGuiTextInput.cpp Go to the documentation of this file. /************************************************************************ Nova-2 Library (libN2L, or simply n2l) Game development C++ Library Copyright (C) 2002 Aaron Cameron This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA A copy of the GNU Lesser General Public License has been provided with this library in the file 'COPYING'. Contact information for the author of this library has been provided with this library in the file 'AUTHOR'. ************************************************************************/ #include "gui/cGuiTextInput.h" #include "n2l/vfs.h" #include "n2l/dynVars.h" #include "n2l/materials.h" #include "n2l/fonts.h" #include "n2l/resourceManagement.h" #include "gui/cGuiCanvas.h" #include "gui/cGuiSimpleCallbackAction.h" #include "gui/guiUtilities.h" #include "gui/cGuiFactory.h" namespace n2l { # ifdef N2L_PASSIVE_GUI_REG tBool cGuiTextInput::smRegistered = cGuiFactory::current().registerLoader( "n2l::cGuiTextInput", cGuiElement::loadNew<cGuiTextInput> ); # endif /**************************************************************************/ cGuiTextInput::cGuiTextInput() { init(); } /**************************************************************************/ cGuiTextInput::cGuiTextInput( const cVfsNodeInterface &iNode ) { init(); load( iNode ); } /**************************************************************************/ cGuiTextInput::cGuiTextInput( const cDynVar &iDef ) { init(); load( iDef ); } /**************************************************************************/ cGuiTextInput::~cGuiTextInput() { } /**************************************************************************/ void cGuiTextInput::load( const cVfsNodeInterface &iNode ) { const tUint DataOffset = vfsNodeFileWithHeader( iNode, "onyx::cGuiTextInput"); cDynVar def; def.unserialize( iNode.buffer().c_str()+DataOffset ); load( def ); } /**************************************************************************/ void cGuiTextInput::load( const cDynVar &iDef ) { cGuiInteractive::load( iDef ); // Step through the fills and styles if (iDef.keyExistsAsArray("textStyle")) for (cDynVar::tConstIterator i=iDef["textStyle"].begin(); i!=iDef["textStyle"].end(); ++i) { textStyle( tState(asSint(i->first)), *n2lgui_loadOrBuild<cGuiTextStyle>(i->second) ); } if (iDef.keyExistsAsArray("background")) for (cDynVar::tConstIterator i=iDef["background"].begin(); i!=iDef["background"].end(); ++i) { fill( tState(asSint(i->first)), Prop_Background, *n2lgui_loadOrBuild<cGuiFill>(i->second) ); } if (iDef.keyExistsAsArray("cursor")) for (cDynVar::tConstIterator i=iDef["cursor"].begin(); i!=iDef["cursor"].end(); ++i) { fill( tState(asSint(i->first)), Prop_Cursor, *n2lgui_loadOrBuild<cGuiFill>(i->second) ); } // Leave the rest as default, because I'm just that lazy. } /**************************************************************************/ void cGuiTextInput::fill( const tState &iState, const tProp &iProp, const cGuiFill &iFill ) { boundCheckState(iState,"cGuiTextInput::fill"); boundCheckProp(iProp,"cGuiTextInput::fill"); mFill[iState][iProp] = iFill; } /**************************************************************************/ void cGuiTextInput::textStyle( const tState &iState, const cGuiTextStyle &iStyle ) { boundCheckState(iState,"cGuiTextInput::textStyle"); mTextStyle[iState] = iStyle; } /**************************************************************************/ void cGuiTextInput::draw() const { const tState curState = (cGuiElement::focus()?State_Focused:State_Normal); mFill[curState][Prop_Background].draw( outerPos(), outerSize() ); mTextStyle[curState].draw( innerPos(), innerSize(), mValue, mFirstCharIndex, (mEndCharIndex-mFirstCharIndex) ); } /**************************************************************************/ void cGuiTextInput::valValFunc( const tValValFunc &iFunc ) { mValValFunc = iFunc; } /**************************************************************************/ void cGuiTextInput::value( const tValue & iValue ) { mValue = iValue; mFirstCharIndex = 0; mEndCharIndex = 0; mCursor = 0; calculatePropPositions(); } /**************************************************************************/ const cGuiTextInput::tValue & cGuiTextInput::value() const { return mValue; } /**************************************************************************/ void cGuiTextInput::init() { mValue = ""; mCursor = 0; mFirstCharIndex = 0; mEndCharIndex = 0; mValValFunc = 0; mFill[State_Normal][Prop_Background].colour( cColour(0.25f,0.25f,0.25f,1.0f) ); mFill[State_Focused][Prop_Background].colour( cColour(0.33f,0.33f,0.33f,1.0f) ); calculatePropPositions(); bindAction( GuiActionType_Clicked, new cGuiSimpleCallbackAction<cGuiTextInput::clickedCallback>, false ); bindAction( GuiActionType_FocusChanged, new cGuiSimpleCallbackAction<cGuiTextInput::focusChangeCallback>, false ); bindAction( GuiActionType_Keystroke, new cGuiSimpleCallbackAction<cGuiTextInput::keystrokeCallback>, false ); } /**************************************************************************/ void cGuiTextInput::processKey( const tKey &iKey, const tKeyMods &iMods ) { tValue oldVal = mValue; tUint oldCursor = mCursor; // Do controls first. if (iKey==Key_Backspace && mCursor!=0) { --mCursor; if (!mValue.empty()) mValue.erase(mCursor); if (iMods & KMod_Ctrl) { while (!mValue.empty() && mValue[mCursor-1]!=' ') mValue.erase(--mCursor); } } else if ((iKey>=Key_A && iKey<=Key_Z) || (iKey>=Key_1 && iKey<=Key_0) || iKey==' ' || iKey=='.' || iKey==',') { if (iMods&KMod_InCaps) mValue += iKey-32; else mValue += iKey; ++mCursor; } else return; tActionData data( tActionData::Array ); if (mValValFunc && !mValValFunc( mValue )) { mValue = oldVal; mCursor = oldCursor; data.insert( "failedValidation", true ); } calculatePropPositions(); data.insert("name", name() ); data.insert("value", mValue ); broadcastAction( GuiActionType_ValueChanged, data ); } /**************************************************************************/ void cGuiTextInput::dimensionChanged() { cGuiInteractive::dimensionChanged(); calculatePropPositions(); } /**************************************************************************/ void cGuiTextInput::cloneInto( const cAutoPtr<cGuiTextInput> &ioElement ) const { // Parent Properties first cGuiInteractive::cloneInto( ioElement ); ioElement->mValue = mValue; ioElement->mCursor = mCursor; ioElement->mFirstCharIndex = mFirstCharIndex; ioElement->mEndCharIndex = mEndCharIndex; for (tUint s=State_Normal; s!=State_NumStates; ++s) { for (tUint p=Prop_Background; p!=Prop_NumProps; ++p) ioElement->mFill[s][p] = mFill[s][p]; ioElement->mTextStyle[s] = mTextStyle[s]; } ioElement->calculatePropPositions(); } /**************************************************************************/ void cGuiTextInput::calculatePropPositions() { const tState CurState = (cGuiElement::focus()?State_Focused:State_Normal); if (!mTextStyle[CurState].font().isSet()) return; const cAutoPtr<const cFontInterface> Font(mTextStyle[CurState].font()); if (mValue.size()) { const tFloat GlyphSeperation = Font->glyphSeperation(innerSize().y()); tFloat strSize = 0; // We have to move the displayed characters one way or // another depending on the cursor position. Do that now. if (mCursor>mEndCharIndex) { // Recalculate to fit the new character, back to front. mEndCharIndex = mCursor; mFirstCharIndex = mEndCharIndex; while (strSize<innerSize().x() && mFirstCharIndex!=0) { strSize += Font->glyphWidth( mValue[mFirstCharIndex-1], innerSize().y() ); strSize += GlyphSeperation; if (strSize>=innerSize().x()) continue; --mFirstCharIndex; } } else if (mCursor<=mFirstCharIndex) { // Recalculate to fit 50% back on the screen, front to back. if (mEndCharIndex-mFirstCharIndex>mFirstCharIndex) mFirstCharIndex = 0; else mFirstCharIndex -= mEndCharIndex-mFirstCharIndex; mEndCharIndex = mFirstCharIndex; while (strSize<innerSize().x() && mEndCharIndex!=mValue.size()) { strSize += Font->glyphWidth( mValue[mEndCharIndex], innerSize().y() ); strSize += GlyphSeperation; if (strSize>=innerSize().x()) continue; ++mEndCharIndex; } } } // mvalue size } /**************************************************************************/ const tBool cGuiTextInput::wantsFocus() const { return true; } /**************************************************************************/ const cAutoPtr<cGuiElement> cGuiTextInput::clone() const { cAutoPtr<cGuiElement> newElement( new cGuiTextInput ); cloneInto( newElement ); return newElement; } /**************************************************************************/ void cGuiTextInput::focusChangeCallback( cGuiElement *const i_ioElement, const tGuiActionType iType, const tActionData & iData ) { } /**************************************************************************/ void cGuiTextInput::clickedCallback( cGuiElement *const i_ioElement, const tGuiActionType iType, const tActionData & iData ) { i_ioElement->focus(true); } /**************************************************************************/ void cGuiTextInput::keystrokeCallback( cGuiElement *const i_ioElement, const tGuiActionType iType, const tActionData & iData ) { if (!tBool(iData["pressed"])) return; dynamic_cast<cGuiTextInput*>(i_ioElement)->processKey( tKey(tSint(iData["key"])), tKeyMods(tSint(iData["mods"])) ); } /**************************************************************************/ void cGuiTextInput::boundCheckState( const tState &iState, const tString &iFrom ) { if (iState<State_Normal || iState>=State_NumStates) throw cOutOfBoundsException( iFrom, "State out of bounds"); } /**************************************************************************/ void cGuiTextInput::boundCheckProp( const tProp &iProp, const tString &iFrom ) { if (iProp<Prop_Background || iProp>=Prop_NumProps) throw cOutOfBoundsException( iFrom, "Property out of bounds"); } } // namespace n2l

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