Noah Petherbridge
e1cbff8c3f
* Add ui.Window to easily create reusable windows with titles.
* Add a palette window (panel) to the right edge of the Edit Mode.
* Has Radio Buttons listing the colors available in the palette.
* Add palette support to Edit Mode so when you draw pixels, they take
on the color and attributes of the currently selected Swatch in your
palette.
* Revise the on-disk format to better serialize the Palette object to
JSON.
* Break Play Mode: collision detection fails because the Grid key
elements are now full Pixel objects (which retain their Palette and
Swatch properties).
* The Grid will need to be re-worked to separate X,Y coordinates from
the Pixel metadata to just test "is something there, and what is
it?"
92 lines
1.8 KiB
Go
92 lines
1.8 KiB
Go
package ui
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import (
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"fmt"
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"git.kirsle.net/apps/doodle/render"
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)
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// DefaultFont is the default font settings used for a Label.
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var DefaultFont = render.Text{
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Size: 12,
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Color: render.Black,
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}
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// Label is a simple text label widget.
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type Label struct {
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BaseWidget
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// Configurable fields for the constructor.
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Text string
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TextVariable *string
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Font render.Text
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width int32
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height int32
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}
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// NewLabel creates a new label.
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func NewLabel(c Label) *Label {
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w := &Label{
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Text: c.Text,
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TextVariable: c.TextVariable,
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Font: DefaultFont,
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}
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if !c.Font.IsZero() {
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w.Font = c.Font
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}
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w.IDFunc(func() string {
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return fmt.Sprintf(`Label<"%s">`, w.text().Text)
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})
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return w
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}
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// text returns the label's displayed text, coming from the TextVariable if
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// available or else the Text attribute instead.
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func (w *Label) text() render.Text {
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if w.TextVariable != nil {
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w.Font.Text = *w.TextVariable
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return w.Font
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}
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w.Font.Text = w.Text
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return w.Font
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}
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// Value returns the current text value displayed in the widget, whether it was
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// the hardcoded value or a TextVariable.
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func (w *Label) Value() string {
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return w.text().Text
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}
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// Compute the size of the label widget.
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func (w *Label) Compute(e render.Engine) {
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rect, err := e.ComputeTextRect(w.text())
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if err != nil {
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log.Error("%s: failed to compute text rect: %s", w, err)
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return
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}
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if !w.FixedSize() {
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w.resizeAuto(render.Rect{
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W: rect.W + (w.Font.Padding * 2),
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H: rect.H + (w.Font.Padding * 2),
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})
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}
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w.MoveTo(render.Point{
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X: rect.X + w.BoxThickness(1),
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Y: rect.Y + w.BoxThickness(1),
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})
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}
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// Present the label widget.
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func (w *Label) Present(e render.Engine, P render.Point) {
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border := w.BoxThickness(1)
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w.DrawBox(e, P)
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e.DrawText(w.text(), render.Point{
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X: P.X + border + w.Font.Padding,
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Y: P.Y + border + w.Font.Padding,
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})
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}
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