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Diffstat (limited to 'reference.md')
| -rw-r--r-- | reference.md | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/reference.md b/reference.md index cd79c49..705194e 100644 --- a/reference.md +++ b/reference.md @@ -277,22 +277,21 @@ The following facilities help set these things up: * `button` creates a single button. The syntax is: ``` - button(state, name, {x=..., y=..., w=..., h=..., color={r,g,b}, + button(state, name, {x=..., y=..., w=..., h=..., bg={r,g,b}, icon = function({x=..., y=..., w=..., h=...}) ... end, onpress1 = ... }) ``` - Call this either directly or indirectly from `App.draw`. It will paint a - rectangle to the screen with top-left at (x,y), dimensions w×h pixels in the - specified `color`. It will then overlay any drawing instructions within - `icon` atop it. The `icon` callback will receive a table containing the same - x/y/w/h. + Call this either directly or indirectly from `App.draw`. It will assign a + rectangle with the given dimensions and trigger the provided (zero-arg) + `onpress1` callback when the primary mouse button is clicked within. + It will also optionally paint the rectangle with the specified background + color `bg` and a foreground described by the `icon` callback (which will + receive the same dimensions). - The rectangle also registers within `state` the `onpress1` callback (without - any arguments) when mouse button 1 is clicked on it. This way you can see - everything about a button in one place. Create as many buttons as you like - within a single shared `state`. + This way you can see everything about a button in one place. Create as many + buttons as you like within a single shared `state`. * `mouse_press_consumed_by_any_button(state, x,y, mouse_button)` |