SlideShare a Scribd company logo
Qt Kwan Do
Overview
Overview
Architecture and Class
                  Design


  New arguments? To the front!

             Look, ma, no signals or slot.

    Mixed signals
More Signals and Slots


 It's the end of the world, as we know it.
 (And I feel fine.)




                   Everybody all together now.
QObject and implict
             sharing in Qt


                   Have you lost weight?




   The cosmological const
Custom Painting



   Give me a lever long enough and a place
        to stand, and I can move the earth.

      In the event of my paint ...
Dialog Management

What's wrong with this code?
Dialog Management

Odd, but necessary.
Event Handling and
                Reentrancy
Event Handling and
             Reentrancy
Model/View



                The model model.

   It does not move.

              Love by proxy.
Concurrency

  Sometimes it can be a lot to
  process.
Concurrency
Algorithms and Containers


         for
               each

Do you want some Q with that vector?
                      We'll swap that for you, Sir.
QImage and QPixmap




                     Will it blend?
 The end of the Golden Rule.
Only use in self defense.

More Related Content

More from account inactive

Meet Qt
Meet QtMeet Qt
KDE Plasma for Mobile Phones
KDE Plasma for Mobile PhonesKDE Plasma for Mobile Phones
KDE Plasma for Mobile Phones
account inactive
 
Shipping Mobile Applications Using Qt for Symbian
Shipping Mobile Applications Using Qt for SymbianShipping Mobile Applications Using Qt for Symbian
Shipping Mobile Applications Using Qt for Symbian
account inactive
 
The Future of Qt Widgets
The Future of Qt WidgetsThe Future of Qt Widgets
The Future of Qt Widgets
account inactive
 
Scripting Your Qt Application
Scripting Your Qt ApplicationScripting Your Qt Application
Scripting Your Qt Application
account inactive
 
Special Effects with Qt Graphics View
Special Effects with Qt Graphics ViewSpecial Effects with Qt Graphics View
Special Effects with Qt Graphics View
account inactive
 
Developments in The Qt WebKit Integration
Developments in The Qt WebKit IntegrationDevelopments in The Qt WebKit Integration
Developments in The Qt WebKit Integration
account inactive
 
Qt on Real Time Operating Systems
Qt on Real Time Operating SystemsQt on Real Time Operating Systems
Qt on Real Time Operating Systems
account inactive
 
Development with Qt for Windows CE
Development with Qt for Windows CEDevelopment with Qt for Windows CE
Development with Qt for Windows CE
account inactive
 
Translating Qt Applications
Translating Qt ApplicationsTranslating Qt Applications
Translating Qt Applications
account inactive
 
Qt Creator Bootcamp
Qt Creator BootcampQt Creator Bootcamp
Qt Creator Bootcamp
account inactive
 
Qt Widget In-Depth
Qt Widget In-DepthQt Widget In-Depth
Qt Widget In-Depth
account inactive
 
Qt State Machine Framework
Qt State Machine FrameworkQt State Machine Framework
Qt State Machine Framework
account inactive
 
Mobile Development with Qt for Symbian
Mobile Development with Qt for SymbianMobile Development with Qt for Symbian
Mobile Development with Qt for Symbian
account inactive
 
How to Make Your Qt App Look Native
How to Make Your Qt App Look NativeHow to Make Your Qt App Look Native
How to Make Your Qt App Look Native
account inactive
 
Animation Framework: A Step Towards Modern UIs
Animation Framework: A Step Towards Modern UIsAnimation Framework: A Step Towards Modern UIs
Animation Framework: A Step Towards Modern UIs
account inactive
 
Using Multi-Touch and Gestures with Qt
Using Multi-Touch and Gestures with QtUsing Multi-Touch and Gestures with Qt
Using Multi-Touch and Gestures with Qt
account inactive
 
Debugging Qt, Fixing and Contributing a Bug Report (Using Gitorious)
Debugging Qt, Fixing and Contributing a Bug Report (Using Gitorious)Debugging Qt, Fixing and Contributing a Bug Report (Using Gitorious)
Debugging Qt, Fixing and Contributing a Bug Report (Using Gitorious)
account inactive
 
The Mobility Project
The Mobility ProjectThe Mobility Project
The Mobility Project
account inactive
 
Copy Your Favourite Nokia App with Qt
Copy Your Favourite Nokia App with QtCopy Your Favourite Nokia App with Qt
Copy Your Favourite Nokia App with Qt
account inactive
 

More from account inactive (20)

Meet Qt
Meet QtMeet Qt
Meet Qt
 
KDE Plasma for Mobile Phones
KDE Plasma for Mobile PhonesKDE Plasma for Mobile Phones
KDE Plasma for Mobile Phones
 
Shipping Mobile Applications Using Qt for Symbian
Shipping Mobile Applications Using Qt for SymbianShipping Mobile Applications Using Qt for Symbian
Shipping Mobile Applications Using Qt for Symbian
 
The Future of Qt Widgets
The Future of Qt WidgetsThe Future of Qt Widgets
The Future of Qt Widgets
 
Scripting Your Qt Application
Scripting Your Qt ApplicationScripting Your Qt Application
Scripting Your Qt Application
 
Special Effects with Qt Graphics View
Special Effects with Qt Graphics ViewSpecial Effects with Qt Graphics View
Special Effects with Qt Graphics View
 
Developments in The Qt WebKit Integration
Developments in The Qt WebKit IntegrationDevelopments in The Qt WebKit Integration
Developments in The Qt WebKit Integration
 
Qt on Real Time Operating Systems
Qt on Real Time Operating SystemsQt on Real Time Operating Systems
Qt on Real Time Operating Systems
 
Development with Qt for Windows CE
Development with Qt for Windows CEDevelopment with Qt for Windows CE
Development with Qt for Windows CE
 
Translating Qt Applications
Translating Qt ApplicationsTranslating Qt Applications
Translating Qt Applications
 
Qt Creator Bootcamp
Qt Creator BootcampQt Creator Bootcamp
Qt Creator Bootcamp
 
Qt Widget In-Depth
Qt Widget In-DepthQt Widget In-Depth
Qt Widget In-Depth
 
Qt State Machine Framework
Qt State Machine FrameworkQt State Machine Framework
Qt State Machine Framework
 
Mobile Development with Qt for Symbian
Mobile Development with Qt for SymbianMobile Development with Qt for Symbian
Mobile Development with Qt for Symbian
 
How to Make Your Qt App Look Native
How to Make Your Qt App Look NativeHow to Make Your Qt App Look Native
How to Make Your Qt App Look Native
 
Animation Framework: A Step Towards Modern UIs
Animation Framework: A Step Towards Modern UIsAnimation Framework: A Step Towards Modern UIs
Animation Framework: A Step Towards Modern UIs
 
Using Multi-Touch and Gestures with Qt
Using Multi-Touch and Gestures with QtUsing Multi-Touch and Gestures with Qt
Using Multi-Touch and Gestures with Qt
 
Debugging Qt, Fixing and Contributing a Bug Report (Using Gitorious)
Debugging Qt, Fixing and Contributing a Bug Report (Using Gitorious)Debugging Qt, Fixing and Contributing a Bug Report (Using Gitorious)
Debugging Qt, Fixing and Contributing a Bug Report (Using Gitorious)
 
The Mobility Project
The Mobility ProjectThe Mobility Project
The Mobility Project
 
Copy Your Favourite Nokia App with Qt
Copy Your Favourite Nokia App with QtCopy Your Favourite Nokia App with Qt
Copy Your Favourite Nokia App with Qt
 

Recently uploaded

FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdfFIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
FIDO Alliance
 
The Future of Platform Engineering
The Future of Platform EngineeringThe Future of Platform Engineering
The Future of Platform Engineering
Jemma Hussein Allen
 
Designing Great Products: The Power of Design and Leadership by Chief Designe...
Designing Great Products: The Power of Design and Leadership by Chief Designe...Designing Great Products: The Power of Design and Leadership by Chief Designe...
Designing Great Products: The Power of Design and Leadership by Chief Designe...
Product School
 
DevOps and Testing slides at DASA Connect
DevOps and Testing slides at DASA ConnectDevOps and Testing slides at DASA Connect
DevOps and Testing slides at DASA Connect
Kari Kakkonen
 
FIDO Alliance Osaka Seminar: Passkeys at Amazon.pdf
FIDO Alliance Osaka Seminar: Passkeys at Amazon.pdfFIDO Alliance Osaka Seminar: Passkeys at Amazon.pdf
FIDO Alliance Osaka Seminar: Passkeys at Amazon.pdf
FIDO Alliance
 
From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...
From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...
From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...
Product School
 
Knowledge engineering: from people to machines and back
Knowledge engineering: from people to machines and backKnowledge engineering: from people to machines and back
Knowledge engineering: from people to machines and back
Elena Simperl
 
When stars align: studies in data quality, knowledge graphs, and machine lear...
When stars align: studies in data quality, knowledge graphs, and machine lear...When stars align: studies in data quality, knowledge graphs, and machine lear...
When stars align: studies in data quality, knowledge graphs, and machine lear...
Elena Simperl
 
FIDO Alliance Osaka Seminar: FIDO Security Aspects.pdf
FIDO Alliance Osaka Seminar: FIDO Security Aspects.pdfFIDO Alliance Osaka Seminar: FIDO Security Aspects.pdf
FIDO Alliance Osaka Seminar: FIDO Security Aspects.pdf
FIDO Alliance
 
IOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptx
IOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptxIOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptx
IOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptx
Abida Shariff
 
Essentials of Automations: Optimizing FME Workflows with Parameters
Essentials of Automations: Optimizing FME Workflows with ParametersEssentials of Automations: Optimizing FME Workflows with Parameters
Essentials of Automations: Optimizing FME Workflows with Parameters
Safe Software
 
Transcript: Selling digital books in 2024: Insights from industry leaders - T...
Transcript: Selling digital books in 2024: Insights from industry leaders - T...Transcript: Selling digital books in 2024: Insights from industry leaders - T...
Transcript: Selling digital books in 2024: Insights from industry leaders - T...
BookNet Canada
 
GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...
GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...
GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...
Sri Ambati
 
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdfFIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
FIDO Alliance
 
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...
James Anderson
 
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...
UiPathCommunity
 
FIDO Alliance Osaka Seminar: Overview.pdf
FIDO Alliance Osaka Seminar: Overview.pdfFIDO Alliance Osaka Seminar: Overview.pdf
FIDO Alliance Osaka Seminar: Overview.pdf
FIDO Alliance
 
ODC, Data Fabric and Architecture User Group
ODC, Data Fabric and Architecture User GroupODC, Data Fabric and Architecture User Group
ODC, Data Fabric and Architecture User Group
CatarinaPereira64715
 
Accelerate your Kubernetes clusters with Varnish Caching
Accelerate your Kubernetes clusters with Varnish CachingAccelerate your Kubernetes clusters with Varnish Caching
Accelerate your Kubernetes clusters with Varnish Caching
Thijs Feryn
 
The Art of the Pitch: WordPress Relationships and Sales
The Art of the Pitch: WordPress Relationships and SalesThe Art of the Pitch: WordPress Relationships and Sales
The Art of the Pitch: WordPress Relationships and Sales
Laura Byrne
 

Recently uploaded (20)

FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdfFIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
 
The Future of Platform Engineering
The Future of Platform EngineeringThe Future of Platform Engineering
The Future of Platform Engineering
 
Designing Great Products: The Power of Design and Leadership by Chief Designe...
Designing Great Products: The Power of Design and Leadership by Chief Designe...Designing Great Products: The Power of Design and Leadership by Chief Designe...
Designing Great Products: The Power of Design and Leadership by Chief Designe...
 
DevOps and Testing slides at DASA Connect
DevOps and Testing slides at DASA ConnectDevOps and Testing slides at DASA Connect
DevOps and Testing slides at DASA Connect
 
FIDO Alliance Osaka Seminar: Passkeys at Amazon.pdf
FIDO Alliance Osaka Seminar: Passkeys at Amazon.pdfFIDO Alliance Osaka Seminar: Passkeys at Amazon.pdf
FIDO Alliance Osaka Seminar: Passkeys at Amazon.pdf
 
From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...
From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...
From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...
 
Knowledge engineering: from people to machines and back
Knowledge engineering: from people to machines and backKnowledge engineering: from people to machines and back
Knowledge engineering: from people to machines and back
 
When stars align: studies in data quality, knowledge graphs, and machine lear...
When stars align: studies in data quality, knowledge graphs, and machine lear...When stars align: studies in data quality, knowledge graphs, and machine lear...
When stars align: studies in data quality, knowledge graphs, and machine lear...
 
FIDO Alliance Osaka Seminar: FIDO Security Aspects.pdf
FIDO Alliance Osaka Seminar: FIDO Security Aspects.pdfFIDO Alliance Osaka Seminar: FIDO Security Aspects.pdf
FIDO Alliance Osaka Seminar: FIDO Security Aspects.pdf
 
IOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptx
IOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptxIOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptx
IOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptx
 
Essentials of Automations: Optimizing FME Workflows with Parameters
Essentials of Automations: Optimizing FME Workflows with ParametersEssentials of Automations: Optimizing FME Workflows with Parameters
Essentials of Automations: Optimizing FME Workflows with Parameters
 
Transcript: Selling digital books in 2024: Insights from industry leaders - T...
Transcript: Selling digital books in 2024: Insights from industry leaders - T...Transcript: Selling digital books in 2024: Insights from industry leaders - T...
Transcript: Selling digital books in 2024: Insights from industry leaders - T...
 
GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...
GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...
GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...
 
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdfFIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
 
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...
 
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...
 
FIDO Alliance Osaka Seminar: Overview.pdf
FIDO Alliance Osaka Seminar: Overview.pdfFIDO Alliance Osaka Seminar: Overview.pdf
FIDO Alliance Osaka Seminar: Overview.pdf
 
ODC, Data Fabric and Architecture User Group
ODC, Data Fabric and Architecture User GroupODC, Data Fabric and Architecture User Group
ODC, Data Fabric and Architecture User Group
 
Accelerate your Kubernetes clusters with Varnish Caching
Accelerate your Kubernetes clusters with Varnish CachingAccelerate your Kubernetes clusters with Varnish Caching
Accelerate your Kubernetes clusters with Varnish Caching
 
The Art of the Pitch: WordPress Relationships and Sales
The Art of the Pitch: WordPress Relationships and SalesThe Art of the Pitch: WordPress Relationships and Sales
The Art of the Pitch: WordPress Relationships and Sales
 

Qt Kwan-Do