55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
import ui
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import gx
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const (
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WinSize = 540
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Min = 1
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Max = 9
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FontSize = 30
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N = Max - Min + 1
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CellSize = WinSize / N
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TextCfg = gx.TextCfg { color: gx.BLACK, size: FontSize }
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HeaderColor = gx.rgb(240, 240, 240)
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)
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fn main() {
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ui.new_window(ui.WinCfg {
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width: WinSize
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height: WinSize
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title: 'Times Table'
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draw_fn: draw
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})
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for {
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ui.wait_events()
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}
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}
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// ui.Window uses native drawing API (Core Graphics, GDI+)
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fn draw() {
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ui.draw_rect(0, 0, WinSize, CellSize, HeaderColor)// Horizontal header
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ui.draw_rect(0, 0, CellSize, WinSize, HeaderColor)// Vertical header
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for i := Min; i <= Max; i++ {
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y := CellSize * (i - Min)
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for j := Min; j <= Max; j++ {
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// Skip top left corner
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if i == Min && j == Min {
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continue
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}
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// Draw the result
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x := CellSize * (j - Min)
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res := i * j
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mut text_padding_x := (CellSize - FontSize) / 2 - 1
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text_padding_y := text_padding_x - 3
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if res < 10 {
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text_padding_x += 9
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}
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ui.draw_text(x + text_padding_x, y + text_padding_y, res.str(), TextCfg)
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}
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// Horizontal lines
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ui.draw_line(0, y, WinSize, y)
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// Vertical lines
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ui.draw_line(y, 0, y, WinSize)
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}
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}
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