doodle/pkg/editor_ui_palette.go

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package doodle
import (
"fmt"
"git.kirsle.net/apps/doodle/lib/render"
"git.kirsle.net/apps/doodle/lib/ui"
"git.kirsle.net/apps/doodle/pkg/balance"
"git.kirsle.net/apps/doodle/pkg/log"
)
// SetupPalette sets up the palette panel.
func (u *EditorUI) SetupPalette(d *Doodle) *ui.Window {
window := ui.NewWindow("Palette")
window.ConfigureTitle(balance.TitleConfig)
window.TitleBar().Font = balance.TitleFont
window.Configure(ui.Config{
Background: balance.WindowBackground,
BorderColor: balance.WindowBorder,
})
// Doodad frame.
{
frame, err := u.setupDoodadFrame(d.Engine, window)
if err != nil {
d.Flash(err.Error())
}
// Even if there was an error (userdir.ListDoodads couldn't read the
// config folder on disk or whatever) the Frame is still valid but
// empty, which is still the intended behavior.
u.DoodadTab = frame
u.DoodadTab.Hide()
window.Pack(u.DoodadTab, ui.Pack{
Anchor: ui.N,
Fill: true,
})
}
// Color Palette Frame.
u.PaletteTab = u.setupPaletteFrame(window)
window.Pack(u.PaletteTab, ui.Pack{
Anchor: ui.N,
Fill: true,
})
return window
}
// setupPaletteFrame configures the Color Palette tab for Edit Mode.
// This is a subroutine of editor_ui.go#SetupPalette()
func (u *EditorUI) setupPaletteFrame(window *ui.Window) *ui.Frame {
frame := ui.NewFrame("Palette Tab")
frame.SetBackground(balance.WindowBackground)
// Handler function for the radio buttons being clicked.
onClick := func(p render.Point) {
name := u.selectedSwatch
swatch, ok := u.Canvas.Palette.Get(name)
if !ok {
log.Error("Palette onClick: couldn't get swatch named '%s' from palette", name)
return
}
log.Info("Set swatch: %s", swatch)
u.Canvas.SetSwatch(swatch)
}
// Draw the radio buttons for the palette.
if u.Canvas != nil && u.Canvas.Palette != nil {
for _, swatch := range u.Canvas.Palette.Swatches {
swFrame := ui.NewFrame(fmt.Sprintf("Swatch(%s) Button Frame", swatch.Name))
colorFrame := ui.NewFrame(fmt.Sprintf("Swatch(%s) Color Box", swatch.Name))
colorFrame.Configure(ui.Config{
Width: 16,
Height: 16,
Background: swatch.Color,
BorderSize: 1,
BorderStyle: ui.BorderSunken,
})
swFrame.Pack(colorFrame, ui.Pack{
Anchor: ui.W,
})
label := ui.NewLabel(ui.Label{
Text: swatch.Name,
Font: balance.StatusFont,
})
label.Font.Color = swatch.Color.Darken(128)
swFrame.Pack(label, ui.Pack{
Anchor: ui.W,
})
btn := ui.NewRadioButton("palette", &u.selectedSwatch, swatch.Name, swFrame)
btn.Handle(ui.Click, onClick)
u.Supervisor.Add(btn)
btn.Compute(u.d.Engine)
swFrame.Configure(ui.Config{
Height: label.Size().H,
// TODO: magic number, trying to left-align
// the label by making the frame as wide as possible.
Width: paletteWidth - 16,
})
frame.Pack(btn, ui.Pack{
Anchor: ui.N,
Fill: true,
PadY: 4,
})
}
}
return frame
}