How to include .txt on Qt

Payx

So the line

QMapIterator<QRgb, CostInfo> i(Costs);

Is correct ?
""
What is a redefinition of a QMap ? because it say that i have a redefinition of ""QMap<QRgb, CostInfo > Costs""

mrjj

Hi
I move the code around so it compiled here.
https://www.dropbox.com/s/1z7lzjk4fqwxslz/mycolortest.zip?dl=0
Also change QMapIterator to a for each loop to get rid of QMapIterator.

If you get any errors from this it, please list them exactly.

Payx

Thanks it compile,

the problem is that my window crash when i push the boutton who execute
" Remplissage(pixi, QPoint(i, j), QSize(z, z), Couleurdominante(pixi, QPoint(i, j), QSize(z, z)));
"
^^

maybe enough things to do ?

mrjj

Well since you know what function it is, simply set a break point and single step through the code.
That way it will clearly show what line it crashes on. ;)

Payx

It's not crash, the program run at infinity and do nothing

mrjj

@Payx
well that will also be really clear from single stepping :)

Payx

I placed breakpoint on

  for(int x = topLeft.x(); x < maxX; ++x) {
    for(int y = topLeft.y(); y < maxY; ++y) {
      image.setPixelColor(x, y, colour);

      foreach( QRgb key, Costs.keys() ) {
        QColor BaseColor( key );
        if (Costs.contains( colour.rgb() ) || IsCloseColor(BaseColor, colour) )  {
          CostInfo& ci = Costs[colour.rgb()];
          int Cost = ci.Cost;
          QPixmap pix( ci.ImageName );
        }

because its new and before it worked.

And nothing who looks like a crash happened. So i don't understand, maybe it is just a big picture (540 * 540) and the app have difficult to do the code

EDIT : i tried to increase the rectangle size, it worked.

but dont replace the color by a picture

and it say that int cost is an unused variable

mrjj

Hi
In the inner
CostInfo& ci = Costs[colour.rgb()];
int Cost = ci.Cost; // not used for anything
QPixmap pix( ci.ImageName ); // not used for anything
}

it was just for getting the data from the Costs qmap.
You still need to code what ever you want to do with it :)
Currently it just check if color is a match and even if yes, then nothing.

Payx

so if i understood well

int Cost = ci.Cost; /// the Cost in my Qmap
QPixmap pix( ci.ImageName ); /// the picture into a Pixmap

The problem is that the rectangle that i use to calcul the DominantColor isn't a Label or something, so how can i replace a picture into a virtual rectangle ?

mrjj

@Payx
Yes those are the values from the qmap.

so how can i replace a picture into a virtual rectangle

Sorry but Im not sure what kind of operation you want to do.
For each dominánt color for an area. you want to paint all of that area
with this color? Like paint 0,0,40,40 with same color. ?

Payx

My program already do that :

http://hpics.li/c00cce7

but what i want is that for each rectangle that my picture have, it will replace this rectangle of color by a picture in my QMap (like if the rectangle's color is near the red, it will replace by the picture fraise.png and add a Cost)

mrjj

@Payx
You mean that the red squares would be pictures instead?
The painter has drawPixmap
http://doc.qt.io/qt-5/qpainter.html#drawPixmap
You can fit the image to the rect.

Payx

All square would be picture, the picture depends of the color.

If its red we see in the QMap that the picture is fraise.png
if its green -> balle verte.png

i think i dont need "QRectF target" or "source"

because i have already this

  for(int x = topLeft.x(); x < maxX; ++x) {
    for(int y = topLeft.y(); y < maxY; ++y)

when im on the for i'm already in the square.

mrjj

ok. that sounds fine.
I assume you need to scale the pictures down to fit in the
area. ?
You can use scaled function.

QPixmap scaledPix = pix.scaled(   WIDTH, HEIGHT
                               Qt::KeepAspectRatio,
                               Qt::SmoothTransformation
                               );

painter.drawPixmap(QPoint(), scaledPix);

Payx

So i have to rezise the picture or it will do automaticaly ?

i don't understand what the function do

mrjj

No, you will have to resize it, else it will be exactly as in the file.( I assume too big)
the scaled function returns a copy of the pixmap that is scaled to
WIDTH, HEIGHT. so it will fit in your area.

Payx

so if my rectangle is 8*8 tell me if it's correct :

QPixmap scaledPix = pix.scaled(   8, 8
                               Qt::KeepAspectRatio,
                               Qt::SmoothTransformation
                               );

painter.drawPixmap(QPoint(i,j), scaledPix);

just that ?

mrjj

Yes , that should draw image as 8x8 at i,j.
Note the flag Qt::KeepAspectRatio which means it might not be 8x8 directly but
maybe 8x6 if the original images was not square. AspectRatio means keep the relation between height and width.

ambershark

@mrjj 104 posts on this thread... you are a patient person mrjj. ;) I would have just written the program for him by now, lol.

Payx

@ambershark Lol

I prefer learn instead of just don't understand what i'm doing, i know i'm very bad to programmation by now but maybe in few years i'il be like mrjj haha !

for the QPoint, i use it here :

void MainWindow::on_push2_clicked()
{


	for (int i=0;i<pixi.width();i+=z){
						 for (int j=0;j<pixi.height();j+=z){
							 k=k+0.06;
							Remplissage(pixi,QPoint(i,j),QSize(z,z),Couleurdominante(pixi,QPoint(i,j),QSize(z,z)));

		}
	}

but i use the QPixmap scaledPix .....
in my function

void Remplissage(QImage& image, const QPoint& topLeft, const QSize& rectangle, const QColor& colour) {

so it tell that j and i was not declared in this scope

so i declared i and j in my .h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPixmap>
#include <QPoint>
#include <QSize>
#include <iostream>
#include <QMapIterator>
#include <QMap>

namespace Ui {
class MainWindow;
}

struct CostInfo {
  QString ImageName;
  int     Cost;
};

int j;
int i;

class MainWindow : public QMainWindow {
  Q_OBJECT

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

  ~MainWindow();

 private slots:
  void on_push_clicked();
  void on_push2_clicked();
  void on_verticalSlider_sliderMoved(int position);

 private:
  Ui::MainWindow* ui;
  QImage pixi;
  QPixmap pixa;
  float k;
  int a;


  int z = 1;
  int b;
};

#endif // MAINWINDOW_HH

it will work?

//

it tell that painter was not declared too, so i search to the QPainter class,

it's "void QPainter::drawPixmap(const QPoint & point, const QPixmap & pixmap)" that i should use ?