Making a crowdsourced project on Canvas - page 2
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On the topic of using kanvas as a UI.
I'd say it's a beauty.)
I'm very happy with the speed. everything is quite adequate in terms of rendering time and control.
Hiders for GIF and PNG
Okay.
Since you are already an expert with the practice of creating controls on kanvas,
why don't you describe your base classes and general event model?
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We can start from your base and then add more controls
- button
- input field
- slider
- drop down list (already in your archive)
- time selection (already in your archive)
Right now I am very busy with main work, as soon as I'm free I'll make full scheme, it will be not earlier than 25.07.2016.
In general terms:
Basic object CFrame - abstract object on canvas, has x,y, width, height and a set of virtual methods for event handling (OnMouse..., OnNotify, OnPaint), can contain other CFrame objects.
CWindow is a descendant of CFrame, which implements a canvas and is a graphical object on a chart, receives and handles external events (OnChartEvent), distributing it to objects (child) that reside on it.
All GUI objects are spawned from CFrame, supplementing it with necessary methods
The P&F Chart project does not have a global event controller, it is needed for applications with 2 or more windows (read kanvas).
It is the one which should distribute events to windows and monitor the capture of an instance (keyboard + mouse) by GUI controls.
IMHO right now, you can only make a full-fledged EDIT if you draw your own GUI keyboard, but it would be hard to support languages, and it's inconvenient to type with a mouse...
By the way, in the MetaEditor you can start projects, invite other participants, give them rights and work together on the project.
Do you mean MQL5 Storage?
Renat, could you tell me in more detail where to read about this mechanism?
I've been using the Staorage MQL5 since its launch, but I haven't found the option of shared access there.
OK.
the CFrame is clear.
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I noticed that you went down the path where gui blocks are each represented by their own bitmap.an important point for those reading this and who have already started to think about it:
The work should only be done on one bitmap, with all gui elements rendered on it. With the z-order in mind.
In this case, there will be more possibilities for rendering. (shadows, gradients etc.).
And control is simplified (we won't go to the level of MT objects)
The problem with the input field is that there's no good idea how to use what's available.
IMHO right now, you can only make a full-fledged EDIT if you draw your own GUI keyboard, but it would be hard to support languages, and it's inconvenient to type with a mouse...
Do you mean MQL5 Storage?
Renat, could you tell me in more detail where to read about this mechanism?
I've been using the Staorage MQL5 since its launch, but I haven't found the option of shared access there.
MetaTrader 5 Help | 2015.12.02 10:22
And in general, you need to test the joint work with projects - I think there will be questions.