54 lines
1.7 KiB
Markdown
54 lines
1.7 KiB
Markdown
Dynamic Values is a way to position or size your object based on the position/size of other objects. This makes it pretty easy to create programs where the terminal size
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doesn't matter.
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A dynamic value is always a string, and you can add anything you want in there. Here are some examples:<br>
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"5 + 2"<br>
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"(5 + 2) * 3"<br>
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"math.floor(5+2.2)"<br>
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"objectid.x + objectid.y + objectid.w + objectid+h"<br>
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"parent.w"<br>
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"self.w"<br>
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Parent always refers to it's parent object, self always refers to itself.
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## Positioning
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Here i will show you a example on how to position a button next to another button, doesn't matter which size it has.
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```lua
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local basalt = require("basalt")
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local main = basalt.createFrame()
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local button = main:addButton("firstBtn")
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:setBackground(colors.black)
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:setForeground(colors.lightGray)
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:setPosition(2, 2)
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local button2 = main:addButton()
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:setBackground(colors.black)
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:setForeground(colors.lightGray)
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:setPosition("firstBtn.w + firstBtn.x + 2", "firstBtn.y")
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basalt.autoUpdate()
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```
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Now, you can move the first button and the second button would also move. Doesn't matter how.
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## Sizing
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This is a example on how you can create buttons where the size is always based on it's parent frame
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```lua
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local basalt = require("basalt")
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local main = basalt.createFrame()
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local button = main:addButton("firstBtn")
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:setBackground(colors.black)
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:setForeground(colors.lightGray)
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:setPosition(2, 2)
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:setSize("parent.w - 2", 3)
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local button2 = main:addButton()
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:setBackground(colors.black)
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:setForeground(colors.lightGray)
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:setPosition(2, "firstBtn.y + firstBtn.h + 1")
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:setSize("parent.w - 2", 3)
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basalt.autoUpdate()
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``` |