cocos2dx 简单文本输出
在手机上调试,不能所见所得日志,这个是一个比较麻烦的事,于是想到了,用多行文本做日志。
下面是日志的代码。从CCLabelTTF派生。这里主要提供了VLog和Log两个日志输出函数。
在Scene里面,初始化的时候,调下面的函数void HelloWorld::InitLog()下面是日志的代码。从CCLabelTTF派生。这里主要提供了VLog和Log两个日志输出函数。
定义如下
void VLog(const char * paramFormat, va_list param_argptr);
void VLog(const char * paramFormat, va_list param_argptr);
void Log(const char * paramFormat, ...);
其中VLog主要应用于已经有va_list的情况下。
其中VLog主要应用于已经有va_list的情况下。
#ifndef _X_LOG_VIEW_H_
#define _X_LOG_VIEW_H_
#include <cocos2d.h>
#include <vector>
#include <cstring>
#include <cstdarg>
USING_NS_CC;
namespace zdh
{
using std::vector;
using std::string;
///滚动文本日志
/*
这是一个模板类,模板参数N主要是设置一行日志缓冲的字节数。
*/
template<int N = 128>
class XLogView : public CCLabelTTF
{
public:
XLogView()
:m_LogMaxLine(10)
{
}
//一组create,直接从CCLabelTTF复制过来
static XLogView * create(const char *string, const char *fontName, float fontSize)
{
return XLogView::create(string, fontName, fontSize, CCSizeZero, kCCTextAlignmentCenter, kCCVerticalTextAlignmentTop);
}
static XLogView * create(const char *string, const char *fontName, float fontSize, const CCSize& dimensions, CCTextAlignment hAlignment)
{
return XLogView::create(string, fontName, fontSize, dimensions, hAlignment, kCCVerticalTextAlignmentTop);
}
static XLogView * create(const char *string, const char *fontName, float fontSize, const CCSize& dimensions, CCTextAlignment hAlignment, CCVerticalTextAlignment vAlignment)
{
XLogView *pRet = new XLogView();
if (pRet && pRet->initWithString(string, fontName, fontSize, dimensions, hAlignment, vAlignment))
{
pRet->autorelease();
return pRet;
}
CC_SAFE_DELETE(pRet);
return NULL;
}
static XLogView * createWithFontDefinition(const char *string, ccFontDefinition &textDefinition)
{
XLogView *pRet = new XLogView();
if (pRet && pRet->initWithStringAndTextDefinition(string, textDefinition))
{
pRet->autorelease();
return pRet;
}
CC_SAFE_DELETE(pRet);
return NULL;
}
//设置滚动日志的最大行数
void setLogMaxLine(int param_max_line)
{
if (param_max_line < 1)
{
m_LogMaxLine = 1;
}
else if (param_max_line > 1024)
{
m_LogMaxLine = 1024;
}
else m_LogMaxLine = param_max_line
}
//取滚动日志的最大行数
int getLogMaxLine() const
{
return m_LogMaxLine;
}
//清除日志
void Clear()
{
m_LogList.clear();
setString("");
}
//生成日志
void VLog(const char * paramFormat, va_list param_argptr)
{
char sTemp[N];
vsnprintf(sTemp, sizeof(sTemp), paramFormat, param_argptr);
//删除超出行数的日志
while ((int)m_LogList.size() > m_LogMaxLine)
{
m_LogList.erase(m_LogList.begin());
}
m_LogList.push_back(sTemp);
//生成日志
m_LogTemp = "";
size_t iCount = m_LogList.size();
for (size_t i = 0; i < iCount; i++)
{
if (m_LogTemp.length() >0) m_LogTemp += "\n";
m_LogTemp += m_LogList[i];
}
setString(m_LogTemp.c_str());
//输出到控制台窗口
#ifdef _MSC_VER
OutputDebugStringA(sTemp);
#endif
}
void Log(const char * paramFormat, )
{
va_list argptr;
va_start(argptr, paramFormat);
VLog(sTemp, sizeof(sTemp), paramFormat, argptr);
va_end(argptr);
}
private:
string m_LogTemp; //生成日志的临时变量
int m_LogMaxLine; //日志最大的行数
vector<string> m_LogList; //日志内容
};
}
#endif
#define _X_LOG_VIEW_H_
#include <cocos2d.h>
#include <vector>
#include <cstring>
#include <cstdarg>
USING_NS_CC;
namespace zdh
{
using std::vector;
using std::string;
///滚动文本日志
/*
这是一个模板类,模板参数N主要是设置一行日志缓冲的字节数。
*/
template<int N = 128>
class XLogView : public CCLabelTTF
{
public:
XLogView()
:m_LogMaxLine(10)
{
}
//一组create,直接从CCLabelTTF复制过来
static XLogView * create(const char *string, const char *fontName, float fontSize)
{
return XLogView::create(string, fontName, fontSize, CCSizeZero, kCCTextAlignmentCenter, kCCVerticalTextAlignmentTop);
}
static XLogView * create(const char *string, const char *fontName, float fontSize, const CCSize& dimensions, CCTextAlignment hAlignment)
{
return XLogView::create(string, fontName, fontSize, dimensions, hAlignment, kCCVerticalTextAlignmentTop);
}
static XLogView * create(const char *string, const char *fontName, float fontSize, const CCSize& dimensions, CCTextAlignment hAlignment, CCVerticalTextAlignment vAlignment)
{
XLogView *pRet = new XLogView();
if (pRet && pRet->initWithString(string, fontName, fontSize, dimensions, hAlignment, vAlignment))
{
pRet->autorelease();
return pRet;
}
CC_SAFE_DELETE(pRet);
return NULL;
}
static XLogView * createWithFontDefinition(const char *string, ccFontDefinition &textDefinition)
{
XLogView *pRet = new XLogView();
if (pRet && pRet->initWithStringAndTextDefinition(string, textDefinition))
{
pRet->autorelease();
return pRet;
}
CC_SAFE_DELETE(pRet);
return NULL;
}
//设置滚动日志的最大行数
void setLogMaxLine(int param_max_line)
{
if (param_max_line < 1)
{
m_LogMaxLine = 1;
}
else if (param_max_line > 1024)
{
m_LogMaxLine = 1024;
}
else m_LogMaxLine = param_max_line
}
//取滚动日志的最大行数
int getLogMaxLine() const
{
return m_LogMaxLine;
}
//清除日志
void Clear()
{
m_LogList.clear();
setString("");
}
//生成日志
void VLog(const char * paramFormat, va_list param_argptr)
{
char sTemp[N];
vsnprintf(sTemp, sizeof(sTemp), paramFormat, param_argptr);
//删除超出行数的日志
while ((int)m_LogList.size() > m_LogMaxLine)
{
m_LogList.erase(m_LogList.begin());
}
m_LogList.push_back(sTemp);
//生成日志
m_LogTemp = "";
size_t iCount = m_LogList.size();
for (size_t i = 0; i < iCount; i++)
{
if (m_LogTemp.length() >0) m_LogTemp += "\n";
m_LogTemp += m_LogList[i];
}
setString(m_LogTemp.c_str());
//输出到控制台窗口
#ifdef _MSC_VER
OutputDebugStringA(sTemp);
#endif
}
void Log(const char * paramFormat, )
{
va_list argptr;
va_start(argptr, paramFormat);
VLog(sTemp, sizeof(sTemp), paramFormat, argptr);
va_end(argptr);
}
private:
string m_LogTemp; //生成日志的临时变量
int m_LogMaxLine; //日志最大的行数
vector<string> m_LogList; //日志内容
};
}
#endif
{
auto visibleSize = CCDirector::sharedDirector()->getVisibleSize();
auto pLog = THelloWorldLogView::create("", "宋体", 12, CCSizeMake(200,200), kCCTextAlignmentLeft);
if (pLog != nullptr)
{
pLog->setAnchorPoint(ccp(0.5, 1));
pLog->setPosition(ccp(visibleSize.width - 200, visibleSize.height - 10));
this->addChild(pLog);
}
m_Log = pLog;
}
然后定义m_log 指针和一个PrintLog方法void HelloWorld::PrintLog(const char * paramFormat, )auto visibleSize = CCDirector::sharedDirector()->getVisibleSize();
auto pLog = THelloWorldLogView::create("", "宋体", 12, CCSizeMake(200,200), kCCTextAlignmentLeft);
if (pLog != nullptr)
{
pLog->setAnchorPoint(ccp(0.5, 1));
pLog->setPosition(ccp(visibleSize.width - 200, visibleSize.height - 10));
this->addChild(pLog);
}
m_Log = pLog;
}
{
if (m_Log != NULL)
{
va_list argptr;
va_start(argptr, paramFormat);
m_Log->VLog(paramFormat, argptr);
va_end(argptr);
}
}
这样,就可以在代码中,输出日志了
if (m_Log != NULL)
{
va_list argptr;
va_start(argptr, paramFormat);
m_Log->VLog(paramFormat, argptr);
va_end(argptr);
}
}