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How to include .txt on Qt

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  • K Offline
    K Offline
    KzR69100
    wrote on 20 Nov 2016, 12:12 last edited by KzR69100
    #26

    thanks,

    i already read the doc for Qmap,

    my question was the same as before (sorry) i asked that if i got a square who have a color like ( 255 , 2 , 2 - It's near red ) how can i display a red file because on my Qmap i have only

    QColor(250,0,0).rgb(), { "C:\Users\David\Desktop\Red\strawberry", 10) (i will use :/ after created my QRes file)

    the i.hasNext is the answer to my question right ? he will found a value next to his value ?

    My other question was that i have to browse all my picture with a double for (because i got 50 square in my picture)

    so i have to put the

    if (Costs.contains( colour.rgb() )) {          
                                                      CostInfo& ci = Costs[colour.rgb()];
                                                        int Cost = ci.Cost;
                                                         Pixmap pix( ci.ImageName );
    

    and then the while (i.hasNext()) ?

    M 1 Reply Last reply 20 Nov 2016, 12:24
    0
    • K KzR69100
      20 Nov 2016, 12:12

      thanks,

      i already read the doc for Qmap,

      my question was the same as before (sorry) i asked that if i got a square who have a color like ( 255 , 2 , 2 - It's near red ) how can i display a red file because on my Qmap i have only

      QColor(250,0,0).rgb(), { "C:\Users\David\Desktop\Red\strawberry", 10) (i will use :/ after created my QRes file)

      the i.hasNext is the answer to my question right ? he will found a value next to his value ?

      My other question was that i have to browse all my picture with a double for (because i got 50 square in my picture)

      so i have to put the

      if (Costs.contains( colour.rgb() )) {          
                                                        CostInfo& ci = Costs[colour.rgb()];
                                                          int Cost = ci.Cost;
                                                           Pixmap pix( ci.ImageName );
      

      and then the while (i.hasNext()) ?

      M Offline
      M Offline
      mrjj
      Lifetime Qt Champion
      wrote on 20 Nov 2016, 12:24 last edited by mrjj
      #27

      @KzR69100

      • my question was the same as before (sorry) i asked that if i got a square who have a color like ( 255 , 2 , 2 - It's near red )

      For that you need to a function that can compare the RGB values.
      And if Base Color and the color you come with ( from image) is
      within some threshold you also accept it.
      http://stackoverflow.com/questions/9018016/how-to-compare-two-colors
      like
      bool IsCloseColor( QColor c1, QColor c2 ) {
      // this you must fill in . read link.
      }
      If you want a clever mathcing , this is also interresting
      http://stackoverflow.com/questions/2103368/color-logic-algorithm

      • the i.hasNext is the answer to my question right ? he will found a value next to his value ?
        Yes the code shown will go over map. Just like a "For"
        Something like:
        QMapIterator<QRgb, CostInfo >i(Costs);
        while (i.hasNext()) {
          i.next();
          QColor BaseColor( i.key() );
          if (Costs.contains( colour.rgb() ) || IsCloseColor(BaseColor, colour)   )  {
            CostInfo& ci = Costs[colour.rgb()];
            int Cost = ci.Cost;
            QPixmap pix( ci.ImageName );
          }
        }// while
      
      1 Reply Last reply
      0
      • K Offline
        K Offline
        KzR69100
        wrote on 20 Nov 2016, 12:46 last edited by KzR69100
        #28

        i got :

        bool IsCloseColor( QColor c1, QColor c2 ) {
        	int diffRed   = Math.abs(c1.red() - c2.red());
        	int diffGreen = Math.abs(c1.green() - c2.green());
        	int diffBlue  = Math.abs(c1.blue()  - c2.blue());
        
        	if (diffBlue+diffRed+diffGreen< z){	// i block for the z how can i say "the smallest" ?
        		return c1;
        
        
        	}
        }
        

        i got a lot of errors, i tried to google it but no answer :

        like : request for meme "key in 'i'", which is of non-class type 'int'

        template argument 2 is invalid (QMap<QRgb, CostInfo ">" Costs =)

        scalar object 'Costs' requires one element in initializer

        M 1 Reply Last reply 20 Nov 2016, 18:12
        0
        • K KzR69100
          20 Nov 2016, 12:46

          i got :

          bool IsCloseColor( QColor c1, QColor c2 ) {
          	int diffRed   = Math.abs(c1.red() - c2.red());
          	int diffGreen = Math.abs(c1.green() - c2.green());
          	int diffBlue  = Math.abs(c1.blue()  - c2.blue());
          
          	if (diffBlue+diffRed+diffGreen< z){	// i block for the z how can i say "the smallest" ?
          		return c1;
          
          
          	}
          }
          

          i got a lot of errors, i tried to google it but no answer :

          like : request for meme "key in 'i'", which is of non-class type 'int'

          template argument 2 is invalid (QMap<QRgb, CostInfo ">" Costs =)

          scalar object 'Costs' requires one element in initializer

          M Offline
          M Offline
          mrjj
          Lifetime Qt Champion
          wrote on 20 Nov 2016, 18:12 last edited by
          #29

          @KzR69100

          z you must decide for.
          Best is to test with different colors and see how close its still ok.

          With the exact code and the exact line it's impossible to say what error comes from.

          You can try my test project. It compiles and you can test the color matching.
          https://www.dropbox.com/s/6mc3e4qe375qzih/mylookup.zip?dl=0

          1 Reply Last reply
          1
          • K Offline
            K Offline
            KzR69100
            wrote on 20 Nov 2016, 19:24 last edited by KzR69100
            #30

            My code is : (cpp)

            #include "mainwindow.h"
            #include "ui_mainwindow.h"
            #include <QPixmap>
            #include <QImage>
            #include <QFileDialog>
            #include <QColor>
            #include <QPoint>
            #include <QSize>
            #include <iostream>
            using namespace std;
            
            
            QColor Couleurdominante(const QImage& image, const QPoint& topLeft, const QSize& rectSize);
            void Remplissage(QImage& image, const QPoint& topLeft, const QSize& rectSize, const QColor& colour);
            
            
            MainWindow::MainWindow(QWidget *parent) :
            	QMainWindow(parent),
            	ui(new Ui::MainWindow)
            {
            		ui->setupUi(this);
            
            }
            
            
            MainWindow::~MainWindow()
            {
            	delete ui;
            }
            
            
            
            
            void MainWindow::on_push_clicked()
            {
            	QString fileName = QFileDialog::getOpenFileName(this,
            	tr("Open Image"), "/", tr("Image Files (*.png *.jpg *.bmp)"));
            	QPixmap pix(fileName);
            	ui->label->setPixmap(pix);
            	const QSize s = pix.size();
            	pixi = QImage(pix.toImage());
            
            	ui->label_2->setText( "Size: " + QString::number(s.width()) +" "+ QString::number(s.height()) );
            
            }
            
            void MainWindow::on_push2_clicked()
            {
            
            
            	for (int i=0;i<pixi.width();i+=a){
            						 for (int j=0;j<pixi.height();j+=b){
            	Remplissage(pixi,QPoint(i,j),QSize(a,b),Couleurdominante(pixi,QPoint(i,j),QSize(a,b)));
            	}}
            
            	pixa=QPixmap::fromImage(pixi);
            	ui->label_3->setPixmap(pixa);
            
            }
            
            
            
            
            void Remplissage(QImage& image, const QPoint& topLeft, const QSize& rectangle, const QColor& colour) {
            
            	int maxX = topLeft.x() + rectangle.width();
            	int maxY = topLeft.y() + rectangle.height();
            
            	for(int x = topLeft.x(); x < maxX; ++x) {
            		for(int y = topLeft.y(); y < maxY; ++y) {
            			image.setPixelColor(x, y, colour);
            			QMapIterator<QRgb, CostInfo >i;
            			while (i.hasNext()) {
            				i.next();
            				QColor BaseColor( i.key() );
            				if (Costs.contains( colour.rgb() ) || IsCloseColor(BaseColor, colour) )  {
            					CostInfo& ci = Costs[colour.rgb()];
            					int Cost = ci.Cost;
            					QPixmap pix( ci.ImageName );
            				}
            			}
            		}
            	}
            }
            
            
            QColor Couleurdominante(const QImage & image,const QPoint & topLeft, const QSize & rectangle)
            {
            		int rouge = 0, vert = 0, bleue = 0;
            
            		int  X = topLeft.x() + rectangle.width();
            		int  Y = topLeft.y() + rectangle.height();
            
            		for (int y = topLeft.y(); y < Y; y++)  {
            				for (int x = topLeft.x(); x < X; x++)   {
            						QRgb pixel = image.pixel(x, y);
            
            						rouge += qRed(pixel);
            						vert += qGreen(pixel);
            						bleue += qBlue(pixel);
            				}
            		}
            
            		int n = rectangle.width() * rectangle.height();
            
            		Q_ASSERT(n);
            		if (n <= 0)
            				return Qt::black;
            
            		return QColor(rouge / n, vert / n, bleue / n);
            }
            
            
            
            QMap<QRgb, CostInfo > Costs = {
            	{ QColor(255 , 0 , 0 ).rgb(), { "://fraise.png", 10 }},
            	{ QColor(0 , 255 , 0 ).rgb(), { "://balleverte.png", 20 }},
            	{ QColor(0 , 0 , 255 ).rgb(), { "://ballebleue.png", 20 }},
            	{ QColor(255 , 255 , 255 ).rgb(), { "://balleblanche.png", 20 }},
            	{ QColor(255 , 128 , 0 ).rgb(), { "://ballepeche.png", 20 }},
            	{ QColor(0 , 0 , 0 ).rgb(), { "://noir.png", 20 }},
            	{ QColor(102 , 51 , 0 ).rgb(), { "://marron.png", 20 }},
            	{ QColor(255 , 102 , 78 ).rgb(), { "://rose.png", 20 }},
            	{ QColor(0 , 204 , 204 ).rgb(), { "://turquoise.png", 20 }},
            	{ QColor(255 , 178 , 102 ).rgb(), { "://beige.png", 20 }},
            	{ QColor(76 , 0 , 153 ).rgb(), { "://violet.png", 20 }},
            	{ QColor(100 , 100 , 100 ).rgb(), { "://gris.png", 20 }},
            };
            
            bool IsCloseColor( QColor c1, QColor c2 ) {
            	int diffRed   = Math.abs(c1.red() - c2.red());
            	int diffGreen = Math.abs(c1.green() - c2.green());
            	int diffBlue  = Math.abs(c1.blue()  - c2.blue());
            
            	if (diffBlue+diffRed+diffGreen< 100){	/
            		return c1;
            
            
            	}
            }
            
            
            

            i took z = 100. For the moment

            .h :

            #ifndef MAINWINDOW_H
            #define MAINWINDOW_H
            
            #include <QMainWindow>
            #include <QPixmap>
            #include <QPoint>
            #include <QSize>
            #include <iostream>
            
            namespace Ui {
            	class MainWindow;
            }
            
            class MainWindow : public QMainWindow
            {
            	Q_OBJECT
            
            public:
            	explicit MainWindow(QWidget *parent = 0);
            
            
            	~MainWindow();
            
            
            
            
            
            private slots:
            	void on_push_clicked();
            	struct CostInfo {
            		QString ImageName;
            		int Cost;
            	};
            
            	void on_push2_clicked();
            
            	void on_verticalSlider_sliderMoved(int position);
            
            private:
            	Ui::MainWindow *ui;
            	QImage pixi;
            	QPixmap pixa;
            	int a;
            	int b;
            };
            
            #endif // MAINWINDOW_H
            
            1 Reply Last reply
            0
            • M Offline
              M Offline
              mrjj
              Lifetime Qt Champion
              wrote on 20 Nov 2016, 22:13 last edited by
              #31

              Hi
              In your
              bool IsCloseColor( QColor c1, QColor c2 ) {
              int diffRed = Math.abs(c1.red() - c2.red());
              int diffGreen = Math.abs(c1.green() - c2.green());
              int diffBlue = Math.abs(c1.blue() - c2.blue());

              if (diffBlue+diffRed+diffGreen< 100){	/
              	return c1; <<<<<< you should return true
                  else //////////////////you need this part also
                     return false;  /////////
              
              1 Reply Last reply
              0
              • K Offline
                K Offline
                KzR69100
                wrote on 21 Nov 2016, 08:18 last edited by KzR69100
                #32

                Thank you i corrected.

                And for my other error ?

                in : if (Costs.contains( colour.rgb() ) || IsCloseColor(BaseColor, colour) )

                for the function IsCloseColor, its not better to return a color ? like QColor IsCloseColor();, i don't understand what we can do if we return "false" or "true"

                1 Reply Last reply
                0
                • P Offline
                  P Offline
                  Payx
                  wrote on 3 Dec 2016, 16:05 last edited by
                  #33

                  i up ! need help ^^

                  1 Reply Last reply
                  0
                  • P Offline
                    P Offline
                    Payx
                    wrote on 7 Dec 2016, 12:46 last edited by
                    #34

                    for the function IsCloseColor, its not better to return a color ? like QColor IsCloseColor();, i don't understand what we can do if we return "false" or "true"

                    M 1 Reply Last reply 7 Dec 2016, 12:50
                    0
                    • P Payx
                      7 Dec 2016, 12:46

                      for the function IsCloseColor, its not better to return a color ? like QColor IsCloseColor();, i don't understand what we can do if we return "false" or "true"

                      M Offline
                      M Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on 7 Dec 2016, 12:50 last edited by
                      #35

                      @Payx

                      It just checks if the color is "close " to base color
                      No reason to return color ?
                      we say
                      if (Costs.contains( colour.rgb() ) || IsCloseColor(BaseColor, colour) )

                      So if we have direct match OR
                      the colour is close to BaseColor then we think its ok.

                      1 Reply Last reply
                      1
                      • P Offline
                        P Offline
                        Payx
                        wrote on 21 Dec 2016, 14:06 last edited by Payx
                        #36

                        Okay thank you,

                        i have

                        diffBlue+diffRed+diffGreen< 100
                        

                        but if many colors correspond ?
                        it can return many colors no ?

                        M 1 Reply Last reply 21 Dec 2016, 14:19
                        0
                        • P Payx
                          21 Dec 2016, 14:06

                          Okay thank you,

                          i have

                          diffBlue+diffRed+diffGreen< 100
                          

                          but if many colors correspond ?
                          it can return many colors no ?

                          M Offline
                          M Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on 21 Dec 2016, 14:19 last edited by mrjj
                          #37

                          @Payx
                          No it cant..
                          IsCloseColor tells if 2 colors are close. It return true/false.
                          it dont return any color. it tells you if they color u have "in the hand" matches the
                          base color given.
                          You already have the color (colour var) so no reason to return it.

                          1 Reply Last reply
                          0
                          • P Offline
                            P Offline
                            Payx
                            wrote on 21 Dec 2016, 14:21 last edited by
                            #38

                            So it cant be possible to have 2 colors who is <100 ?

                            M 1 Reply Last reply 21 Dec 2016, 14:23
                            0
                            • P Payx
                              21 Dec 2016, 14:21

                              So it cant be possible to have 2 colors who is <100 ?

                              M Offline
                              M Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on 21 Dec 2016, 14:23 last edited by mrjj
                              #39

                              @Payx
                              ofc, just compare 2 times or more times. Once pr color.
                              IsCloseColor(BaseColor, col1)
                              IsCloseColor(BaseColor, col2)
                              IsCloseColor(BaseColor, col3)
                              ....

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                              0
                              • P Offline
                                P Offline
                                Payx
                                wrote on 21 Dec 2016, 14:26 last edited by mrjj
                                #40

                                So if i have like 27 colors, i have to do 27 function ?

                                M 1 Reply Last reply 21 Dec 2016, 14:30
                                0
                                • P Payx
                                  21 Dec 2016, 14:26

                                  So if i have like 27 colors, i have to do 27 function ?

                                  M Offline
                                  M Offline
                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on 21 Dec 2016, 14:30 last edited by
                                  #41

                                  @Payx
                                  No. use a list (of colors) and loop over it, checking each.

                                  1 Reply Last reply
                                  0
                                  • P Offline
                                    P Offline
                                    Payx
                                    wrote on 21 Dec 2016, 14:36 last edited by
                                    #42

                                    Okay, so it's useless to write :

                                    bool IsCloseColor( QColor c1, QColor c2 ) {
                                    	int diffRed   = Math.abs(c1.red() - c2.red());
                                    	int diffGreen = Math.abs(c1.green() - c2.green());
                                    	int diffBlue  = Math.abs(c1.blue()  - c2.blue());
                                    
                                    	if (diffBlue+diffRed+diffGreen< 100){	/
                                    		return true;.
                                    		else
                                    				return false;
                                    
                                    
                                    	}
                                    }
                                    
                                    

                                    So if i understood well the "<100" is now useless. Can't we just return the color who have the minimum diffBlue+diffRed+diffGreen ?

                                    M 1 Reply Last reply 21 Dec 2016, 14:48
                                    0
                                    • P Payx
                                      21 Dec 2016, 14:36

                                      Okay, so it's useless to write :

                                      bool IsCloseColor( QColor c1, QColor c2 ) {
                                      	int diffRed   = Math.abs(c1.red() - c2.red());
                                      	int diffGreen = Math.abs(c1.green() - c2.green());
                                      	int diffBlue  = Math.abs(c1.blue()  - c2.blue());
                                      
                                      	if (diffBlue+diffRed+diffGreen< 100){	/
                                      		return true;.
                                      		else
                                      				return false;
                                      
                                      
                                      	}
                                      }
                                      
                                      

                                      So if i understood well the "<100" is now useless. Can't we just return the color who have the minimum diffBlue+diffRed+diffGreen ?

                                      M Offline
                                      M Offline
                                      mrjj
                                      Lifetime Qt Champion
                                      wrote on 21 Dec 2016, 14:48 last edited by
                                      #43

                                      @Payx
                                      The < 100 is the factor on How close the color was to the Base Color.
                                      So i do not understand u think its useless.

                                      How else would u compare them?

                                      1 Reply Last reply
                                      0
                                      • P Offline
                                        P Offline
                                        Payx
                                        wrote on 21 Dec 2016, 18:09 last edited by
                                        #44

                                        u said "do a list", instead of write ...<100, we can do a "for" and "return" the minimal "diffBlue+diffRed+diffGreen" or the all color no ?

                                        jsulmJ 1 Reply Last reply 22 Dec 2016, 05:44
                                        0
                                        • P Payx
                                          21 Dec 2016, 18:09

                                          u said "do a list", instead of write ...<100, we can do a "for" and "return" the minimal "diffBlue+diffRed+diffGreen" or the all color no ?

                                          jsulmJ Offline
                                          jsulmJ Offline
                                          jsulm
                                          Lifetime Qt Champion
                                          wrote on 22 Dec 2016, 05:44 last edited by
                                          #45

                                          @Payx If you want to return the closest color from a list then you need to write a function similar to IsCloseColor. You iterate over the list, calculate the diff and store the color with the smallest diff and its diff in local variables, then return the color from that local variable.

                                          https://forum.qt.io/topic/113070/qt-code-of-conduct

                                          1 Reply Last reply
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