Home » Community » Coffee corner » Examples for newby: dynamic widget and ownership
| Examples for newby: dynamic widget and ownership [message #5201] |
Sun, 10 September 2006 17:42  |
thierry
Messages: 9
Registered: September 2006
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Promising Member |
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Hello,
thanks for the tutorial and examples. They help a lot getting motivation to learn another GUI toolkit. However the tutorial isn't progressive: this is not the same example growing, thus showing the progressively development of an appli, and implied refactoring or U++ programming style.
however, I'd like to have a more complex example to better understand the recommanded practice with UPP.
Let's describe its specification and rationale (for steps):
it would a a very simple drawing application: adding and moving two shapes (like a box and a circle) on a grid frame.
I see it as a tutorial to progressively learn U++.
- 1rst step:
Paint a circle and a rectangle in topwindow.
(paint)
- 2nd step:
making a circle frame and rectangle frame, distribute them in a topwindow
(frame)
- 3rd step making a shape control with derived circle control and rectangle, with click on them changing colors, and entering on them making border change color
(callbacks, selecting)
- 4th step:
make a grid control with popup menu "create circle", "create box"
which prompts created circle/rectangle at [popup coordinate]
(menu)
- 5th step:
dynamically add a cicle and rectangle control into window control on popup action from step 4.
(dynamically added control, refresh, and ownership...)
- 6th step:
add popup menu on shape control for modifying the filling color, border thickness
(layout, color control)
- 9th add tool bar: mode draw circle or draw rectangle
(switch, toolbar, and icons .iml for draw mode, enable disable on popup menu)
- 7th step: add status bar (counting shape number)
- 8th step: add global menu (reset of grid, exit)
- 9th step: drag and drop of shapes
- 10th : add load and store of grid state
(serialize, fileselector)
- 11th: add multiple documents, new grids in new tabs from main menu
I know this is easier specifying than implementing...
But
- I'm more in state of using it than developping it now
- I can use U++ only in spare time
+ thus forum consultation is rare, tutorial helps more
+ learning material is key, rather than support on irregular work
+ don't need much comments on upp code
Do you think this can be a good progressive learning or a to big effort to do, and not the right order to start with an application ?
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