Mercurial > hg > orthanc-stone
diff Samples/Common/MeasureTools.h @ 654:462a5074f914
Turned the scene into an observable to be able to dynamically react to
scene to canvas transform changes --> now the handles and angle measure
adornments are immune to zoom changes
| author | Benjamin Golinvaux <bgo@osimis.io> |
|---|---|
| date | Tue, 14 May 2019 13:51:00 +0200 |
| parents | 1e9ed656318e |
| children | cb3b76d16234 |
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--- a/Samples/Common/MeasureTools.h Tue May 14 13:49:12 2019 +0200 +++ b/Samples/Common/MeasureTools.h Tue May 14 13:51:00 2019 +0200 @@ -33,10 +33,10 @@ namespace OrthancStone { - class MeasureTool + class MeasureTool : public IObserver { public: - virtual ~MeasureTool() {} + virtual ~MeasureTool(); /** Enabled tools are rendered in the scene. @@ -51,15 +51,15 @@ */ void Disable(); + /** + This method is called when the scene transform changes. It allows to + recompute the visual elements whose content depend upon the scene transform + */ + void OnSceneTransformChanged(const Scene2D::SceneTransformChanged& message); + protected: - MeasureTool(Scene2D& scene) - : scene_(scene) - , enabled_(true) - { - } - - - + MeasureTool(MessageBroker& broker, Scene2D& scene); + /** This is the meat of the tool: this method must [create (if needed) and] update the layers and their data according to the measure tool kind and @@ -67,19 +67,13 @@ */ virtual void RefreshScene() = 0; - Scene2D& GetScene() - { - return scene_; - } + Scene2D& GetScene(); /** enabled_ is not accessible by subclasses because there is a state machine that we do not wanna mess with */ - bool IsEnabled() const - { - return enabled_; - } + bool IsEnabled() const; private: Scene2D& scene_;