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105 lines
3.6 KiB
C++
Executable File
105 lines
3.6 KiB
C++
Executable File
#include <cdroid.h>
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#include <core/inputdevice.h>
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#include <porting/cdinput.h>
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#include <linux/input.h>
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#include <core/inputeventsource.h>
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#include <sstream>
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class TouchWindow:public Window{
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private:
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typedef struct{int x;int y;int pressure;}TOUCHPOINT;
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std::map<int,std::list<TOUCHPOINT>> mTouchPoints;
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int mGridSize;
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bool mClear;
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protected:
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void drawGrid(Canvas&canvas){
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for(int x=0,i=0;x<getWidth();x+=mGridSize,i++){
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canvas.move_to(x,0);
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canvas.line_to(x,getHeight());
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canvas.set_source_rgba(.5,.5,.5,(i%10==0)?1.f:0.4f);
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canvas.stroke();
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}
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for(int y=0,i=0;y<getHeight();y+=mGridSize,i++){
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canvas.move_to(0,y);
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canvas.line_to(getWidth(),y);
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canvas.set_source_rgba(.5,.5,.5,(i%10==0)?1.f:0.4f);
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canvas.stroke();
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}
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}
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public:
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TouchWindow(int w,int h):Window(0,0,w,h){
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mGridSize =10;
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mClear = false;
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}
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#define R 6
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bool onTouchEvent(MotionEvent&event)override{
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const int pointer = event.getActionIndex();
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int minX=INT_MAX,minY=INT_MAX;
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int maxX=INT_MIN,maxY=INT_MIN;
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switch(event.getActionMasked()){
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case MotionEvent::ACTION_UP:
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mClear = event.getActionMasked()==MotionEvent::ACTION_UP&&(event.getX()<20)&&(event.getY()<20);
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if(mClear)invalidate();
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break;
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case MotionEvent::ACTION_DOWN:
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case MotionEvent::ACTION_POINTER_DOWN:
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case MotionEvent::ACTION_MOVE:
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for(int i=0;i<event.getPointerCount();i++){
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auto it = mTouchPoints.find(i);
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int x = event.getX(i);
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int y = event.getY(i);
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int pressure =event.getPressure(i);
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minX = std::min(x,minX);
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minY = std::min(y,minY);
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maxX = std::max(x,maxX);
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maxY = std::max(y,maxY);
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if(it == mTouchPoints.end()){
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it = mTouchPoints.insert({i,std::list<TOUCHPOINT>()}).first;
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}
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it->second.push_back({x,y,pressure});
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//LOGD("Pointer[%d] %d",i,event.getHistorySize());
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for(int j=0;j<event.getHistorySize();j++){
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x = event.getHistoricalX(i,j);
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y = event.getHistoricalY(i,j);
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pressure=event.getHistoricalPressure(i,j);
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it->second.push_back({x,y,pressure});
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minX = std::min(x,minX);
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minY = std::min(y,minY);
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maxX = std::max(x,maxX);
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maxY = std::max(y,maxY);
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}
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}
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invalidate(minX-R,minY-R,maxX-minX+R+R,maxY-minY+R+R);
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break;
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default:break;
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}
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return true;
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}
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void onDraw(Canvas&canvas)override{
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if(mClear){
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canvas.set_source_rgb(0,0,0);
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canvas.paint();
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}
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drawGrid(canvas);
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for(auto it=mTouchPoints.begin();it!=mTouchPoints.end();it++){
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std::list<TOUCHPOINT>& pts = it->second;
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canvas.set_source_rgb(0,1,float(it->first)/mTouchPoints.size());
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for(auto p:pts){
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canvas.arc(p.x,p.y,R+p.pressure,0,M_PI*2.f);
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canvas.fill();
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}
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pts.clear();
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}
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}
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};
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int main(int argc,const char*argv[]){
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App app(argc,argv);
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Point sz;
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WindowManager::getInstance().getDefaultDisplay().getRealSize(sz);
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LOGI("DisplaySize=%dx%d",sz.x,sz.y);
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Window*w=new TouchWindow(-1,-1);
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w->invalidate();
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return app.exec();
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}
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