How to include .txt on Qt

mrjj

@Payx
on top of the "red" image ? so that each cell is an image?

Payx

yes each cell is an image.

on the picture that you showed there is 16 cell so 16 picture who depend on the color

Edit : we had before "image.setPixelColor(x, y, colour);"

can't we have like image.'setImage' or something?

Payx

i changed a lot in my code with research :

(.Cpp)

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QPixmap>
#include <QImage>
#include <QFileDialog>
#include <QColor>
#include <QPoint>
#include <QSize>
#include <iostream>
#include <QMapIterator>
#include <QMap>
#include <QDebug>
#include <QGraphicsItem>
#include <QGraphicsScene>
using namespace std;

// forwards
QColor Couleurdominante(const QImage& image, const QPoint& topLeft, const QSize& rectSize);
void Remplissage(QImage& image, const QPoint& topLeft, const QSize& rectSize, const QColor& colour);
bool IsCloseColor( QColor c1, QColor c2 );
void Remplacement (const QColor& colour, const QPoint& topLeft, QImage& image);
//-----------------------------------------------------

QMap<QRgb, CostInfo > Costs = {
	{ QColor(255 , 0 , 0 ).rgb(), { ":/img/fraise.png", 10 }},
	{ QColor(0 , 255 , 0 ).rgb(), { ":/img/balleverte.png", 20 }},
	{ QColor(0 , 0 , 255 ).rgb(), { ":/img/ballebleue.png", 20 }},
	{ QColor(255 , 255 , 255 ).rgb(), { ":/img/balleblanche.png", 20 }},
	{ QColor(255 , 128 , 0 ).rgb(), { ":/img/ballepeche.png", 20 }},
	{ QColor(0 , 0 , 0 ).rgb(), { ":/img/noir.png", 20 }},
	{ QColor(102 , 51 , 0 ).rgb(), { ":/img/marron.png", 20 }},
	{ QColor(255 , 102 , 78 ).rgb(), { ":/img/rose.png", 20 }},
	{ QColor(0 , 204 , 204 ).rgb(), { ":/img/turquoise.png", 20 }},
	{ QColor(255 , 178 , 102 ).rgb(), { ":/img/beige.png", 20 }},
	{ QColor(76 , 0 , 153 ).rgb(), { ":/img/violet.png", 20 }},
	{ QColor(100 , 100 , 100 ).rgb(), { ":/img/gris.png", 20 }},
};



//-----------------------------------------------------
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);
	ui->label->setFixedHeight(pix.height());
	ui->label->setFixedWidth(pix.width());
	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() {

	int z = 20 ;
	for (int i = 0; i < pixi.width(); i += z) {
		for (int j = 0; j < pixi.height(); j += z) {

			Remplissage(pixi, QPoint(i, j), QSize(z, z), Couleurdominante(pixi, QPoint(i, j), QSize(z, z)));
			Remplacement(Couleurdominante(pixi, QPoint(i, j), QSize(z, z)), QPoint(i,j),pixi );

		}
	}

	pixa = QPixmap::fromImage(pixi);
	ui->label_3->setPixmap(pixa);
	ui->label_3->setFixedHeight(pixa.height());
	ui->label_3->setFixedWidth(pixa.width());


}
//-----------------------------------------------------
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);



}}}

//-----------------------------------------------------
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);
}
//-----------------------------------------------------
bool IsCloseColor( QColor c1, QColor c2 ) {
	int diffRed   = abs(c1.red() - c2.red());
	int diffGreen = abs(c1.green() - c2.green());
	int diffBlue  = abs(c1.blue()  - c2.blue());

	if (diffBlue + diffRed + diffGreen < 350) {
		return true;

	}	else {
		return false;


	}
}
//-----------------------------------------------------
void MainWindow::on_verticalSlider_sliderMoved(int position) {
}

void Remplacement (const QColor& colour, const QPoint& topLeft, QImage& image){

if (Costs.contains( colour.rgb() ))  {
										CostInfo& ci = Costs[colour.rgb()];
									//          int Cost = ci.Cost;
										qDebug() << "check me--->" << ci.ImageName;
										QPixmap pix( ci.ImageName );
										if (pix.isNull()){
										qDebug() << "nothing";
										return;
										};
										QPixmap scaledPix = pix.scaled(   20, 20,
																									 Qt::KeepAspectRatio,
																									 Qt::SmoothTransformation
																									 );
										QGraphicsPixmapItem *item = new QGraphicsPixmapItem(scaledPix);
										scene.addItem(item);
										item->setPos(topLeft.x() , topLeft.y());

}
else {
										foreach( QRgb key, Costs.keys() ) {
										QColor BaseColor( key );
										if (IsCloseColor(BaseColor, colour) == true){
											if ( Costs.contains( BaseColor.rgb())){
																qDebug () << "its OK with base color";
																}else{
																qDebug () << " base color had no match!!";
															}

											CostInfo& ci = Costs[BaseColor.rgb()];
											QPixmap pix( ci.ImageName );
											qDebug() << "image i get from ci.ImageName : " << ci.ImageName;
											QPixmap scaledPix = pix.scaled(   20, 20,
																										 Qt::KeepAspectRatio,
																										 Qt::SmoothTransformation
																										 );
											QGraphicsPixmapItem *item = new QGraphicsPixmapItem(scaledPix);
											scene.addItem(item);
											item->setPos(topLeft.x() , topLeft.y());
	}
	else {
		qDebug() << "yep its no good";
	}
}

}
}

i find a method for display my image or pix (i think) but i'm blocked with the scene ... tell me if i'm in the right direction

Flotisable

@Payx
this is what I think before
I think we can make a method like setImage by scaling the origin image and then set the pixel according to the image that is read

and I'll read your code
by the way, can you modify your indentation? I find it's hard to read your code with too many tabs, I need to scroll from left to right.

Payx

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QPixmap>
#include <QImage>
#include <QFileDialog>
#include <QColor>
#include <QPoint>
#include <QSize>
#include <iostream>
#include <QMapIterator>
#include <QMap>
#include <QDebug>
#include <QGraphicsItem>
#include <QGraphicsScene>
using namespace std;

// forwards
QColor Couleurdominante(const QImage& image, const QPoint& topLeft, const QSize& rectSize);
void Remplissage(QImage& image, const QPoint& topLeft, const QSize& rectSize, const QColor& colour);
bool IsCloseColor( QColor c1, QColor c2 );
void Remplacement (const QColor& colour, const QPoint& topLeft, QImage& image);
QGraphicsScene scene;
//-----------------------------------------------------

QMap<QRgb, CostInfo > Costs = {
	{ QColor(255 , 0 , 0 ).rgb(), { ":/img/fraise.png", 10 }},
	{ QColor(0 , 255 , 0 ).rgb(), { ":/img/balleverte.png", 20 }},
	{ QColor(0 , 0 , 255 ).rgb(), { ":/img/ballebleue.png", 20 }},
	{ QColor(255 , 255 , 255 ).rgb(), { ":/img/balleblanche.png", 20 }},
	{ QColor(255 , 128 , 0 ).rgb(), { ":/img/ballepeche.png", 20 }},
	{ QColor(0 , 0 , 0 ).rgb(), { ":/img/noir.png", 20 }},
	{ QColor(102 , 51 , 0 ).rgb(), { ":/img/marron.png", 20 }},
	{ QColor(255 , 102 , 78 ).rgb(), { ":/img/rose.png", 20 }},
	{ QColor(0 , 204 , 204 ).rgb(), { ":/img/turquoise.png", 20 }},
	{ QColor(255 , 178 , 102 ).rgb(), { ":/img/beige.png", 20 }},
	{ QColor(76 , 0 , 153 ).rgb(), { ":/img/violet.png", 20 }},
	{ QColor(100 , 100 , 100 ).rgb(), { ":/img/gris.png", 20 }},
};



//-----------------------------------------------------
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);
	ui->label->setFixedHeight(pix.height());
	ui->label->setFixedWidth(pix.width());
	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() {

	int z = 20 ;
	for (int i = 0; i < pixi.width(); i += z) {
		for (int j = 0; j < pixi.height(); j += z) {

			Remplissage(pixi, QPoint(i, j), QSize(z, z), Couleurdominante(pixi, QPoint(i, j), QSize(z, z)));
			Remplacement(Couleurdominante(pixi, QPoint(i, j), QSize(z, z)), QPoint(i,j),pixi );

		}
	}

	pixa = QPixmap::fromImage(pixi);
	ui->label_3->setPixmap(pixa);
	ui->label_3->setFixedHeight(pixa.height());
	ui->label_3->setFixedWidth(pixa.width());


}
//-----------------------------------------------------
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);



}}}

//-----------------------------------------------------
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);
}
//-----------------------------------------------------
bool IsCloseColor( QColor c1, QColor c2 ) {
	int diffRed   = abs(c1.red() - c2.red());
	int diffGreen = abs(c1.green() - c2.green());
	int diffBlue  = abs(c1.blue()  - c2.blue());

	if (diffBlue + diffRed + diffGreen < 350) {
		return true;

	}	else {
		return false;


	}
}
//-----------------------------------------------------
void MainWindow::on_verticalSlider_sliderMoved(int position) {
}

void Remplacement (const QColor& colour, const QPoint& topLeft, QImage& image){

if (Costs.contains( colour.rgb() ))  {
					CostInfo& ci = Costs[colour.rgb()];
									//          int Cost = ci.Cost;
				qDebug() << "check me--->" << ci.ImageName;
				QPixmap pix( ci.ImageName );
						if (pix.isNull()){
							qDebug() << "nothing";
						return;
						};
		QPixmap scaledPix = pix.scaled(   20, 20,
																			 Qt::KeepAspectRatio,
																			 Qt::SmoothTransformation
																				 );
		QGraphicsPixmapItem *item = new QGraphicsPixmapItem(scaledPix);
			scene.addItem(item);
			item->setPos(topLeft.x() , topLeft.y());

}
else {
					foreach( QRgb key, Costs.keys() ) {
					QColor BaseColor( key );
					if (IsCloseColor(BaseColor, colour) == true){
					if ( Costs.contains( BaseColor.rgb())){
			               qDebug () << "its OK with base color";
					}else{
					qDebug () << " base color had no match!!";
								}

		  CostInfo& ci = Costs[BaseColor.rgb()];
			QPixmap pix( ci.ImageName );
			qDebug() << "image i get from ci.ImageName : " << ci.ImageName;
			QPixmap scaledPix = pix.scaled(   20, 20,
										 Qt::KeepAspectRatio,
								        	 Qt::SmoothTransformation
												 );
					QGraphicsPixmapItem *item = new QGraphicsPixmapItem(scaledPix);
					scene.addItem(item);
			item->setPos(topLeft.x() , topLeft.y());
	}
	else {
		qDebug() << "yep its no good";
	}
}

}
}

here my code.

My original image is already scaled with

	for (int i = 0; i < pixi.width(); i += z) {
		for (int j = 0; j < pixi.height(); j += z) {

so i just add one function to replace rectangle of color by the picture who correspond to this color

Flotisable

@Payx
so where is the scene? I don't find any declaration.
and I don't find a way to convert a QGraphicsScene to a QImage

I have two directions

if you want to use the QGraphicsScene, then you don't need to convert it into a image. just use the scene to show your image, and you can read Graphics View Framework to see how to use it.
just copy the scaledPix pixel by pixel to the image

Payx

i put my .h to see where i declared my scene

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPixmap>
#include <QPoint>
#include <QSize>
#include <iostream>
#include <QMapIterator>
#include <QMap>
#include <QDebug>
#include <QGraphicsItem>
#include <QGraphicsScene>

namespace Ui {
	class MainWindow;
}
struct CostInfo
{
	QString ImageName;
	int     Cost;
};


class MainWindow : public QMainWindow
{
	Q_OBJECT

public:
		QPixmap pixa;
	explicit MainWindow(QWidget *parent = 0);



	~MainWindow();





private slots:
	void on_push_clicked();
	void on_push2_clicked();


	void on_verticalSlider_sliderMoved(int position);

	void on_verticalSlider_actionTriggered(int action);

private:
	Ui::MainWindow *ui;
	QGraphicsScene scene;
	QImage pixi;

	float k;
	int a;



	int z=1;
	int b;
};

#endif // MAINWINDOW_H

it will work?

EDIT : It compile but my widow crashed when i run it and nothing happend

Flotisable

@Payx
you can use the debug mode to find out which line of code makes it crash.

and I find that you declare two scene, one in the MainWindow, one is global, and you did not use the scene in the MainWindow.

Payx

ok but i keep just the scene in my .h but it tell me that scene isnt declared

Payx

Can someone put the topic as "solved" my problem isnt the same at the beginning i will create an other tread

SGaist

You can do it, click on the "Topic Tools" button, you have there the "Mark as solved" entry.

Font Changer

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