[SOLVED] changing image using keypress

sasireka

[quote author="IamSumit" date="1412079562"][quote author="sasireka" date="1412078116"]i used like this getting error

/home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:53: error: a function-definition is not allowed here before '{' token

/home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:69: error: 'ShowPicture' was not declared in this scope

@void Dialog::keyPressEvent(QKeyEvent *e)
{

void ShowPicture(QString path)
{
                QMovie *movie = new QMovie(path);
                QLabel *processLabel = new QLabel(this);
                ui->processLabel->setMovie(movie);
                movie->start();

                ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
                ui->label1->show();
}

static int key_press = 0;

if(e->key() == Qt::Key_F3)
{

   // QString path = "/home/dev6/Desktop/animation/3.gif";
    ShowPicture("/home/dev6/Desktop/animation/3.gif");
    
}@[/quote]

hi..
After looking your code ...i think you are new to programming.are you?
you are defining the method inside another method .this is not the correct
way
just call ShowPicture("/home/dev6/Desktop/animation/2.gif");
then you will not face any error.
hope it helps[/quote]

good day. yes i am new to Qt programming. Okay i will do like this. Thanks Sumit. Give me a guide to learn Qt programming and library usage.

sasireka

bq. hi..
After looking your code ...i think you are new to programming.are you?
you are defining the method inside another method .this is not the correct
way
just call ShowPicture("/home/dev6/Desktop/animation/2.gif");
then you will not face any error.
hope it helps[/quote]bq.

i did like below. but getting errors.

@void ShowPicture(QString path)
{
QMovie *movie = new QMovie(path);
QLabel *processLabel = new QLabel(this);
ui->processLabel->setMovie(movie);
movie->start();

            ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
            ui->label1->show();

}

void Dialog::keyPressEvent(QKeyEvent *e)
{

if(e->key() == Qt::Key_F3)
{
        ShowPicture(”/home/dev6/Desktop/animation/2.gif”);
}

}@

IamSumit

Hi .
Can you show me your full code (including .h)?
and tell me what errors you are getting also?

sasireka

[quote author="IamSumit" date="1412144476"]Hi .
Can you show me your full code (including .h)?
and tell me what errors you are getting also?

[/quote]

@#include "dialog.h"
#include "ui_dialog.h"
#include <QMovie>
#include <QImage>
#include <QFontDatabase>
#include <QDebug>
#include <QKeyEvent>

Dialog::Dialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::Dialog)
{
ui->setupUi(this);
}

Dialog::~Dialog()
{
delete ui;
}

void ShowPicture(QString path)
{
QMovie *movie = new QMovie(path);
QLabel *processLabel = new QLabel(this);
ui->processLabel->setMovie(movie);
movie->start();

            ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
            ui->label1->show();

}

void Dialog::keyPressEvent(QKeyEvent *e)
{

if(e->key() == Qt::Key_F3)
{
        ShowPicture(”/home/dev6/Desktop/animation/2.gif”);
}

}@

IamSumit

ok.
ShowPicture(QString) is the member function/method of Dialog class.
i can't see proper definition of this method.
in line 21.
@
Replace void Dialog::ShowPicture(QString path)
@

and in .h file declare this method as member.
in .h file. add this line
@
public:
void ShowPicture(QString path);
@

and your oops basics are not clear.So, Please improve your basics first.

Hope it helps.

sasireka

i tried . but still getting error

IamSumit

What errors ?

sasireka

Good day.
[quote author="IamSumit" date="1412164041"]What errors ?[/quote]

@void Dialog::ShowPicture(QString path)
{
QMovie *movie = new QMovie(path);
QLabel *processLabel = new QLabel(this);
ui->processLabel->setMovie(movie);
movie->start();

            ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
            ui->label1->show();

}

void Dialog::keyPressEvent(QKeyEvent *e)
{

if(e->key() == Qt::Key_F3)
{
        ShowPicture(/home/dev6/Desktop/animation/2.gif);
}

}@

errors:

1. /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: invalid suffix "gif" on floating constant

2. * /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:-1: In member function 'void Dialog::ShowPicture(QString)':
1<* /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: expected primary-expression before '/' token

2< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'home' was not declared in this scope

3< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'home' was not declared in this scope

4< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'Desktop' was not declared in this scope

5< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'animation' was not declared in this scope

IamSumit

Hi.
You are not passing a string .string always encloses " " quotes.
@
19.ShowPicture(/home/dev6/Desktop/animation/2.gif);
@
Correct it as .
ShowPicture("/home/dev6/Desktop/animation/2.gif");

sasireka

[quote author="IamSumit" date="1412585094"]Hi.
You are not passing a string .string always encloses " " quotes.
@
19.ShowPicture(/home/dev6/Desktop/animation/2.gif);
@
Correct it as .
ShowPicture("/home/dev6/Desktop/animation/2.gif");
[/quote]

yes.. really i am so sorry.Thanks alot. great help.

sasireka

Thanks alot IamSumit IamSumit and all.

IamSumit

That's ok .

Now please Make your thread title as [SOLVED] so others could notify that solution has been found.:)

sasireka

[quote author="IamSumit" date="1412587771"]That's ok .

Now please Make your thread title as [SOLVED] so others could notify that solution has been found.:)[/quote]

yes.. done IamSumit. :)

Happy Coding :)