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Messages - therealcain

Pages: [1]
1
Help requests / Re: Editbox - text changed signal
« on: 26 December 2017, 18:56:18 »
Yes, "TextChanged" :)
editBox->connect("TextChanged", [](sf::String text){});

The signals of the widgets are documented under the "detailed description" section in the docs: https://tgui.eu/documentation/v0.7/classtgui_1_1EditBox.html#details

Oh, i couldn't find at https://tgui.eu/tutorials/v0.7/signals-introduction/.
Didn't know there are signals on the documentation.

2
Help requests / Editbox - text changed signal
« on: 26 December 2017, 17:54:55 »
Hello,
Is there any signal that being called when text has been changed in a Editbox?

3
Help requests / Re: Segmentation Fault when Accessing ListBox Item
« on: 23 December 2017, 18:00:49 »
Just wanted to say that i managed to fix it and i don't think the issue was with the constructor.

Using shared_ptr with lambdas causing memory leak, so you're need to use weak_ptr.
Here is better explanation: http://floating.io/2017/07/lambda-shared_ptr-memory-leak/

4
Help requests / Re: ChildWindow Questions
« on: 22 December 2017, 20:13:40 »
1) The ChildWindow sends a "Closed" signal. You can just connect to it like this:
childWindow->connect("closed", []{ std::cout << "Window closed" << std::endl; });

If you connect to the Closed event then you are responsible for removing the child window yourself. The above code will just print "Window closed" but the window will remain open. This was done to allow you to cancel a close (e.g. ask user to save before closing). If no signal is bound, the window is removed automatically, but if you connect to the Closes event then you need something like this:
childWindow->connect("closed", [](tgui::ChildWindow::Ptr c){ /*some code*/;  c->destroy(); });

The "c->destroy();" is equivalent to
if (c->getParent())
    c->getParent()->remove(c);

3 and 5) All widgets are shared pointers, which means they are destroyed when neither you nor the gui still has a pointer to it. If you close the child window and no signal is connected like shown above, the child window will be removed from its parent. If you don't keep a pointer to the child window or one of the widgets inside it then they will be destroyed at that moment.

2) If a window is closed, it gets removed from its parent by default as already mentioned above. If you still had a pointer to the child window in your own code then you simply have to add it again. If you didn't keep a pointer then you will have to recreate the child window completely.

An alternative could be to connect to the Close signal and just call "c->hide()", in which case it is still part of the gui and you just have to call show() on it later to "open" the window again.

4) You can use the setTitleButtons function for this:
childWindow->setTitleButtons(tgui::ChildWindow::TitleButton::None);

thank you!
I just realized that most of the questions are kind of the same.

5
Help requests / ChildWindow Questions
« on: 22 December 2017, 16:10:43 »
Hello, i have few questions about the ChildWindow Widget.

1. How can i check if my ChildWindow has been exited?
2. When the ChildWindow has been exited, can i reopen it ?
3. When i exit the ChildWindow is he destroying automatically ?
4. Can i hide the Exit button ?
5. When ChildWindow is being destroyed all the other Ptr's inside the widget are being Deleted aswell ?

6
Help requests / Re: Segmentation Fault when Accessing ListBox Item
« on: 20 December 2017, 22:08:48 »
The path variable has the exact same problem as explorer has, that is why I said it wasn't a proper solution. The Filesystem class object has already been destructed by the time the callback occurs, so accessing any member from it causes undefined behavior.

The real problematic code is not inside the Filesystem class, but in Menubar. The code immediately destructs the Filesystem after creating it.
{
    Filesystem fs(true);
}

yea i got it by now.
i will call it from window loop to keep it alive, and modify it a little bit, to be more efficient.
thank you !

7
Help requests / Re: Segmentation Fault when Accessing ListBox Item
« on: 20 December 2017, 21:49:08 »
Your Filesystem object is destroyed immediately after it gets created in the MenuBar class. The lambda that is called on button press accesses "explorer" which is equivalent of writing "this->explorer" in this case, but your "this" object has already been destroyed.

It isn't a proper fix (you should keep your Filesystem class alive), but the code below does work because it no longer uses "this" and instead uses a copy of the listbox.
openDirButton -> connect("pressed", [e=explorer](){
  std::cout << e -> getSelectedItem().toAnsiString() << std::endl;
});

Thank you for that, it works just fine.

I cant manage to modify my string path through the lambda.
i keep getting
Quote
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
Aborted (core dumped)
when i try to modify it.

        openDirButton -> connect("pressed", [this, e=explorer](){
                path = path + e -> getSelectedItem().toAnsiString();
                // ImportFilesExplorer();
                std::cout << e -> getSelectedItem().toAnsiString() << std::endl;
        });

8
Help requests / Re: Segmentation Fault when Accessing ListBox Item
« on: 20 December 2017, 19:41:47 »
Sure, if its not too hard to build it.

not sure if it's has been sended you...

9
Help requests / Re: Segmentation Fault when Accessing ListBox Item
« on: 20 December 2017, 19:32:01 »
I can't reproduce this. It prints the selected item in the terminal for me. Could you try and make a minimal code that I can just copy-paste so that I'm certain that we are testing the exact same code?

can i send you github link in private message to check it out?

10
Help requests / Re: Segmentation Fault when Accessing ListBox Item
« on: 20 December 2017, 19:19:40 »
Here is the source of the Header and Implementation:

Filesystem.hpp
#ifndef _EXPLORER_HPP
#define _EXPLORER_HPP

#include <experimental/filesystem>
#include <fstream>
#include <sstream>

#include "Globals.hpp"

class Filesystem
{
        private:
                tgui::ChildWindow::Ptr filesystem_window;
                tgui::ListBox::Ptr explorer;

                #if defined(WIN32) || defined(WIN64)
        std::string path = "C:/Users/";

        #elif __linux__
        std::string path = "/home/";

        #endif

                void ImportFilesExplorer();

        public:
                Filesystem(bool open);
};

#endif

filesystem.cpp
#include "../headers/Filesystem.hpp"

namespace fs = std::experimental::filesystem;

Filesystem::Filesystem(bool open)
{
        // Setup Widgets
        filesystem_window = tgui::ChildWindow::create();
        filesystem_window -> setSize(300, 400);
        filesystem_window -> setPosition(window.getSize().x / 2, window.getSize().y / 2);

        tgui::Button::Ptr button;
        button = tgui::Button::create();
        button -> setPosition(10, 370);
        button -> setSize(280, 25);

        explorer = tgui::ListBox::create();
        explorer -> setPosition(5, 5);

        // Open Files in Listbox
        Filesystem::ImportFilesExplorer();

        tgui::Button::Ptr openDirButton = tgui::Button::create();
        tgui::Button::Ptr backDirButton = tgui::Button::create();


        // Open or Save
        if(open == true)
        {
                filesystem_window -> setTitle("Open Project Dialog");
                button -> setText("Open Project");
                explorer -> setSize(290, 325);

                openDirButton -> setPosition(10, 340);
                openDirButton -> setSize(120, 20);
                openDirButton -> setText("Open Folder");

                backDirButton -> setPosition(170, 340);
                backDirButton -> setSize(120, 20);
                backDirButton -> setText("Back Folder");

                // button -> connect("pressed", [&](){
                       
                // });
        }
        else if(open == false)
        {
                filesystem_window -> setTitle("Save Project Dialog");
                button -> setText("Save Project");
                explorer -> setSize(290, 320);

                tgui::Label::Ptr filename = tgui::Label::create();
                filename -> setPosition(7, 333);
                filename -> setText("Project Name:");

                tgui::EditBox::Ptr projectName = tgui::EditBox::create();
                projectName -> setPosition(140, 333);
                projectName -> setSize(150, 20);

                filesystem_window -> add(projectName);
                filesystem_window -> add(filename);

                // openDirButton -> setPosition(10, 340);
                // openDirButton -> setSize(120, 20);
                // openDirButton -> setText("Open Folder");

                // backDirButton -> setPosition(170, 340);
                // backDirButton -> setSize(120, 20);
                // backDirButton -> setText("Back Folder");

                // button -> connect("pressed", [&](){

                // });
        }

        openDirButton -> connect("pressed", [&](){
                // path = path + explorer -> getSelectedItem().toAnsiString(); // ERROR
                // ImportFilesExplorer();
                std::cout << explorer -> getSelectedItem().toAnsiString() << std::endl; // ERROR
        });

        // backDirButton -> connect("pressed", [](){

        // });

        filesystem_window -> add(button);
        filesystem_window -> add(explorer);
        filesystem_window -> add(openDirButton);
        filesystem_window -> add(backDirButton);

        gui.add(filesystem_window);
}

void Filesystem::ImportFilesExplorer()
{
        explorer -> removeAllItems();

        for(auto& p: fs::directory_iterator(path))
        {
                std::ostringstream oss;

                oss << p;
                std::string str = oss.str();

                str.erase(std::remove(str.begin(), str.end(), '"'), str.end());

                size_t found = str.find_last_of("/\\");
        str.erase(str.begin(), str.begin() + found + 1);

                if(fs::is_directory(path + str))
                {
                #if defined(WIN32) || defined(WIN64)
                str += "\\";

                #elif __linux__
                str.push_back('/');

                #endif
                }

                if(str[0] != '.')
                        explorer -> addItem(str);
        }
}

i modified to the full backtrace.

11
Help requests / Segmentation Fault when Accessing ListBox Item
« on: 20 December 2017, 19:09:06 »
hello,
I'm trying to print out the current selected item of
tgui::ListBox::Ptr
but i keep getting
Quote
Segmentation Fault ( Core Dumped )
here is my way to print:
std::cout << explorer -> getSelectedItem().toAnsiString() /*error*/ << std::endl;
gdb error:
Quote
0x00007ffff776a634 in sf::String::String(sf::String const&) () from /usr/lib/x86_64-linux-gnu/libsfml-system.so.2.4
here is backtrace:
Quote
#0  0x00007ffff776a634 in sf::String::String(sf::String const&) () from /usr/lib/x86_64-linux-gnu/libsfml-system.so.2.4
#1  0x00007ffff7462551 in tgui::ListBox::getSelectedItem() const () from /usr/local/lib/libtgui.so.0.7.6
#2  0x000055555556578f in Filesystem::Filesystem(bool)::{lambda()#1}::operator()() const ()
#3  0x000055555556825d in void std::__invoke_impl<void, Filesystem::Filesystem(bool)::{lambda()#1}&>(std::__invoke_other, Filesystem::Filesystem(bool)::{lambda()#1}&) ()
#4  0x000055555556821e in std::__invoke_result<Filesystem::Filesystem(bool)::{lambda()#1}&>::type std::__invoke<Filesystem::Filesystem(bool)::{lambda()#1}&>(std::__invoke_result&&, (Filesystem::Filesystem(bool)::{lambda()#1}&)...) ()
#5  0x00005555555681e6 in void std::_Bind<Filesystem::Filesystem(bool)::{lambda()#1} ()>::__call<void>(std::tuple<>&&, std::_Index_tuple<>) ()
#6  0x00005555555680f3 in void std::_Bind<Filesystem::Filesystem(bool)::{lambda()#1} ()>::operator()<, void>() ()
#7  0x0000555555567f6e in std::_Function_handler<void (), std::_Bind<Filesystem::Filesystem(bool)::{lambda()#1} ()> >::_M_invoke(std::_Any_data const&) ()
#8  0x00007ffff738f262 in tgui::Signal::operator()(unsigned int) () from /usr/local/lib/libtgui.so.0.7.6
#9  0x00007ffff73f20ed in void tgui::SignalWidgetBase::sendSignal<sf::String>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, sf::String) ()
#10 0x00007ffff73efa3c in tgui::Button::leftMouseReleased(float, float) () from /usr/local/lib/libtgui.so.0.7.6
#11 0x00007ffff73748d6 in tgui::Container::handleEvent(sf::Event&) () from /usr/local/lib/libtgui.so.0.7.6
#12 0x00007ffff7374c3d in tgui::Container::leftMouseReleased(float, float) () from /usr/local/lib/libtgui.so.0.7.6
#13 0x00007ffff7410a84 in tgui::ChildWindow::leftMouseReleased(float, float) () from /usr/local/lib/libtgui.so.0.7.6
#14 0x00007ffff73748d6 in tgui::Container::handleEvent(sf::Event&) () from /usr/local/lib/libtgui.so.0.7.6
#15 0x00007ffff737abfd in tgui::Gui::handleEvent(sf::Event) () from /usr/local/lib/libtgui.so.0.7.6
#16 0x000055555555c109 in Window::loop() ()
#17 0x000055555555bcd0 in main ()
what am i doing wrong ?

Pages: [1]