4db94043cb
Files correlati : Commento : Spostamento in libraries delle librerie esterne di Campo per una maggiore pulizia e organizzazione git-svn-id: svn://10.65.10.50/branches/R_10_00@24150 c028cbd2-c16b-5b4b-a496-9718f37d4682
233 lines
8.2 KiB
C++
233 lines
8.2 KiB
C++
/****************************************************************************
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*
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* wxWindows HTML Applet Package
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*
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* Copyright (C) 1991-2001 SciTech Software, Inc.
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* All rights reserved.
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*
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* ========================================================================
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*
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* The contents of this file are subject to the wxWindows License
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* Version 3.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.wxwindows.org/licence3.txt
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* ========================================================================
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*
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* Language: ANSI C++
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* Environment: Any
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*
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* Description: Implementation of wxIfElseVariable Class, Dynamically constructed
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* objects representing variables in SSI #if, #else, and #endif directives
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*
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****************************************************************************/
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// Include private headers
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#include "wx/applet/ifelsevar.h"
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// wxWindows forcelink macro
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#include "wx/html/forcelnk.h"
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#include "wx/msgdlg.h"
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/*---------------------------- Global variables ---------------------------*/
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static wxIfElseVariable *wxIfElseVariable::sm_first = NULL;
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static wxHashTable *wxIfElseVariable::sm_varTable = NULL;
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/*----------------------------- Implementation ----------------------------*/
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/****************************************************************************
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PARAMETERS:
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varName - The String name of the class
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getValueFn - Pointer to the function that returns the echo variable value
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REMARKS:
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Constructor for the wxIfElseVariable class that self registers itself with
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the list of all echo variables when the static class instance is created
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at program init time (remember all the constructors get called before
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the main program function!).
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****************************************************************************/
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wxIfElseVariable::wxIfElseVariable(
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const char *varName,
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wxIfElseVariableGetValueFn getValueFn)
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{
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m_varName = varName;
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m_getValueFn = getValueFn;
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m_next = sm_first;
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sm_first = this;
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}
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/****************************************************************************
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REMARKS:
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Initializes parent pointers and hash table for fast searching for echo
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variables.
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****************************************************************************/
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void wxIfElseVariable::Initialize()
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{
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wxIfElseVariable::sm_varTable = new wxHashTable(wxKEY_STRING);
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// Index all class infos by their class name
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wxIfElseVariable *info = sm_first;
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while (info) {
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if (info->m_varName)
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sm_varTable->Put(info->m_varName, info);
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info = info->m_next;
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}
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}
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/****************************************************************************
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REMARKS:
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Clean up echo variable hash tables on application exit.
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****************************************************************************/
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void wxIfElseVariable::CleanUp()
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{
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delete wxIfElseVariable::sm_varTable;
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wxIfElseVariable::sm_varTable = NULL;
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}
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/****************************************************************************
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PARAMETERS:
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varName - The String name of the class
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REMARKS:
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Constructor for the wxIfElseVariable class that self registers itself with
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the list of all ifelse variables when the static class instance is created
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at program init time (remember all the constructors get called before
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the main program function!).
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****************************************************************************/
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bool wxIfElseVariable::GetValue(
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const wxChar *varName)
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{
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wxIfElseVariable *info = wxIfElseVariable::FindVariable(varName);
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if (info) {
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// Return the forced value if the variable has been forced.
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if (info->forced)
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return info->forceVal;
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return info->m_getValueFn();
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}
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#ifdef CHECKED
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wxMessageBox(wxString("wxHTML #if error: Class is not a valid if else variable (") + varName + wxString(")."),"Error",wxICON_ERROR);
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#endif
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return wxString("");
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}
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/****************************************************************************
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PARAMETERS:
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varName - The String name of the class
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RETURNS:
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True if the if/else variable exists, false if not.
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****************************************************************************/
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bool wxIfElseVariable::Exists(
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const wxChar *varName)
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{
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return wxIfElseVariable::FindVariable(varName) != NULL;
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}
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/****************************************************************************
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PARAMETERS:
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varName - The String name of the class
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val - Value to force the if/else variable with
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REMARKS:
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Function to forcibly override the value of an if/else variable for
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testing purposes. Once the variable has been forced, it will always return
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the forced value until the application exists.
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NOTE: This is only available when compiled in CHECKED mode.
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****************************************************************************/
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void wxIfElseVariable::Force(
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const wxChar *varName,
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bool val)
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{
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wxIfElseVariable *info = wxIfElseVariable::FindVariable(varName);
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if (info) {
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info->forced = true;
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info->forceVal = val;
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}
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else {
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#ifdef CHECKED
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wxMessageBox(wxString("wxHTML #if error: Class is not a valid if else variable (") + varName + wxString(")."),"Error",wxICON_ERROR);
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#endif
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}
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}
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/*------------------------ Macro Documentation ---------------------------*/
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// Here we declare some fake functions to get doc-jet to properly document the macros
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#undef BEGIN_IFELSE_VARIABLE
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/****************************************************************************
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PARAMETERS:
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name - The name of the variable to create
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REMARKS:
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This macro is used to create variables for use by the #if, #else and #endif
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blocks in the HTML preprocessor.
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To create a new variable include the code necessary to get the value of the
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variable between a block of BEGIN_IFELSE_VARIABLE and END_IFELSE_VARIABLE macros.
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EXAMPLE:
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BEGIN_IFELSE_VARIABLE(UserName)
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// Get username from nucleus
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bool tmp = GA_HasRegistered();
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END_IFELSE_VARIABLE(UserName, tmp)
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SEE ALSO:
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wxIfElseVariable, wxIfElsePrep, END_IFELSE_VARIABLE, IFELSE_VARIABLE
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****************************************************************************/
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void BEGIN_IFELSE_VARIABLE(
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const char *name);
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#undef END_IFELSE_VARIABLE
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/****************************************************************************
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PARAMETERS:
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name - The name of the variable to end
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returnval - The boolean value which is the value of the variable
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REMARKS:
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This macro is used to create variables for use by the #if, #else and #endif
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blocks in the HTML preprocessor.
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To create a new variable include the code necessary to get the value of the
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variable between a block of BEGIN_IFELSE_VARIABLE and END_IFELSE_VARIABLE macros.
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EXAMPLE:
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BEGIN_IFELSE_VARIABLE(UserName)
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// Get username from nucleus
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bool tmp = GA_HasRegistered();
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END_IFELSE_VARIABLE(UserName, tmp)
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SEE ALSO:
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wxIfElseVariable, wxIfElsePrep, BEGIN_IFELSE_VARIABLE, IFELSE_VARIABLE
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****************************************************************************/
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void END_IFELSE_VARIABLE(
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const char *name,
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bool returnval);
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#undef IFELSE_VARIABLE
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/****************************************************************************
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PARAMETERS:
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name - The name of the variable
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state - value of the variable
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REMARKS:
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This macro is used to create constant boolean variables for use by the
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#if, #else and #endif blocks in the HTML preprocessor.
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This MACRO creates a variable that simply returns the given state and is
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not modifiable.
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SEE ALSO:
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wxIfElseVariable, wxIfElsePrep, BEGIN_IFELSE_VARIABLE, END_IFELSE_VARIABLE
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****************************************************************************/
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void IFELSE_VARIABLE(
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const char *name,
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bool state);
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FORCE_LINK_ME(ifelsevar)
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