16
General / Re: [SOLVED] Using SMFL for drawing into a Qt Widget
« on: October 22, 2015, 10:30:31 pm » /
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17
General / Re: [SOLVED] Using SMFL for drawing into a Qt Widget
« on: October 22, 2015, 12:34:29 pm »
I haven't used markdown before, so I hope this is okay. Feel free to change anything you want and thank you for posting. I know far too less about Qt and SFML to write such a tutorial from scratch.
Integrating SFML 2.3.2 to a Qt 5.5.1 interface
==============================================
How it worked in SFML 1.6
-------------------------
[A description of this.](http://www.sfml-dev.org/tutorials/1.6/graphics-qt.php)
Making it work in SFML 2.3.2
----------------------------
### Changed methods
The methods *Create* and *Display* were changed to lower-case in newer versions of SFML. Hence these changes must be applied to the code in the tutorial linked above. However, it seems like QWidget does also provide the method *create*, thus we have to be more precise and write *sf::create*. According to [this post](http://en.sfml-dev.org/forums/index.php?topic=13851.msg97124#msg97124), the argument in the *create*-statement should be cast to *sf::WindowHandle*, so the line with the *create*-statement ultimately becomes
*sf::RenderWindow::create((sf::WindowHandle) winId());* .
### Virtual methods
The derived class *QSFMLCanvas* inherits some virtual methods which have to be implemented. Adding
*QSFMLCanvas::~QSFMLCanvas() {}
void QSFMLCanvas::OnInit() {}
void QSFMLCanvas::OnUpdate() {}*
to the class definition should do it. (I think QSFMLCanvas is supposed to be virtual, so it might be better to declare those as virtual instead of dummy-implementing them.)
Everything should be working now.
### Resizing
When *QWidget::resize()* is called, the RenderWindow does not match the QWidget anymore. A solution to this (but maybe not the best one) is to call *sf::RenderWindow::create((sf::WindowHandle) winId());* once again subsequently.
==============================================
How it worked in SFML 1.6
-------------------------
[A description of this.](http://www.sfml-dev.org/tutorials/1.6/graphics-qt.php)
Making it work in SFML 2.3.2
----------------------------
### Changed methods
The methods *Create* and *Display* were changed to lower-case in newer versions of SFML. Hence these changes must be applied to the code in the tutorial linked above. However, it seems like QWidget does also provide the method *create*, thus we have to be more precise and write *sf::create*. According to [this post](http://en.sfml-dev.org/forums/index.php?topic=13851.msg97124#msg97124), the argument in the *create*-statement should be cast to *sf::WindowHandle*, so the line with the *create*-statement ultimately becomes
*sf::RenderWindow::create((sf::WindowHandle) winId());* .
### Virtual methods
The derived class *QSFMLCanvas* inherits some virtual methods which have to be implemented. Adding
*QSFMLCanvas::~QSFMLCanvas() {}
void QSFMLCanvas::OnInit() {}
void QSFMLCanvas::OnUpdate() {}*
to the class definition should do it. (I think QSFMLCanvas is supposed to be virtual, so it might be better to declare those as virtual instead of dummy-implementing them.)
Everything should be working now.
### Resizing
When *QWidget::resize()* is called, the RenderWindow does not match the QWidget anymore. A solution to this (but maybe not the best one) is to call *sf::RenderWindow::create((sf::WindowHandle) winId());* once again subsequently.
18
General / Re: [SOLVED] Using SMFL for drawing into a Qt Widget
« on: October 21, 2015, 08:16:45 pm »
Yes.
19
General / Re: [SOLVED] Using SMFL for drawing into a Qt Widget
« on: October 21, 2015, 07:12:28 pm »
Is there a way of posting in the wiki without registering on GitHub?
20
General / Re: Using SMFL for drawing into a Qt Widget
« on: October 20, 2015, 02:18:48 pm »
Okay, it seems like I could fix it by implementing stubs for the virtual methods. Anyway, I suggest updating the tutorial I linked to in my post.
21
General / Re: Using SMFL for drawing into a Qt Widget
« on: October 20, 2015, 01:05:39 pm »
After finding the Post http://en.sfml-dev.org/forums/index.php?topic=13851.msg97124 I changed
to
and hence the ambiguity is gone. However, when building it now tells
referencing line
of
in the implementation of QSMFLCanvas as provided in http://www.sfml-dev.org/tutorials/1.6/graphics-qt.php .
Any ideas on this? The file qsmflcanvas.o seems to be built.
create(winId());
to
sf::RenderWindow::create((sf::WindowHandle)winId());
and hence the ambiguity is gone. However, when building it now tells
undefined reference to to `vtable for QSMFLCanvas'
,referencing line
myInitialized (false)
of
#include "qsmflcanvas.h"
QSFMLCanvas::QSFMLCanvas(QWidget* Parent, const QPoint& Position, const QSize& Size, unsigned int FrameTime) :
QWidget (Parent),
myInitialized (false)
{
QSFMLCanvas::QSFMLCanvas(QWidget* Parent, const QPoint& Position, const QSize& Size, unsigned int FrameTime) :
QWidget (Parent),
myInitialized (false)
{
in the implementation of QSMFLCanvas as provided in http://www.sfml-dev.org/tutorials/1.6/graphics-qt.php .
Any ideas on this? The file qsmflcanvas.o seems to be built.
22
General / [SOLVED] Using SMFL for drawing into a Qt Widget
« on: October 19, 2015, 03:50:57 pm »
Hey there.
So I'm about to write an application using Qt Widgets and want to draw using SMFL 2.3.2. I'v stumbled upon
http://www.sfml-dev.org/tutorials/1.6/graphics-qt.php
but it seems to be a bit outdated. Apparently, the functions Create() and Display() were changed to lower-case. So after adjusting this, the compiler (MinGW) says that the reference to "create" is ambiguous, referencing the line "create(winId());" inside the function void QSFMLCanvas::showEvent(QShowEvent*).
I haven't used Qt before and only tried very basic things with SMFL, hence I do not know how to handle this.
I would be very grateful if someone could help me with this so I can actually begin with what I have in mind.
So I'm about to write an application using Qt Widgets and want to draw using SMFL 2.3.2. I'v stumbled upon
http://www.sfml-dev.org/tutorials/1.6/graphics-qt.php
but it seems to be a bit outdated. Apparently, the functions Create() and Display() were changed to lower-case. So after adjusting this, the compiler (MinGW) says that the reference to "create" is ambiguous, referencing the line "create(winId());" inside the function void QSFMLCanvas::showEvent(QShowEvent*).
I haven't used Qt before and only tried very basic things with SMFL, hence I do not know how to handle this.
I would be very grateful if someone could help me with this so I can actually begin with what I have in mind.
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