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https://github.com/hajimehoshi/ebiten.git
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45642668f7
On Windows, cursor colors are determined based on the background color, and if the background color is gray, the cursor might be invisible. This change adjust the color so that the cursor should be visible in any cases. Closes #1583
100 lines
2.5 KiB
Go
100 lines
2.5 KiB
Go
// Copyright 2021 The Ebiten Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build example
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package main
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import (
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"image"
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"image/color"
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"log"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/ebitenutil"
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)
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const (
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screenWidth = 640
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screenHeight = 480
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)
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type Game struct {
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grids map[image.Rectangle]ebiten.CursorShapeType
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gridColors map[image.Rectangle]color.Color
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}
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func (g *Game) Update() error {
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pt := image.Pt(ebiten.CursorPosition())
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for r, c := range g.grids {
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if pt.In(r) {
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ebiten.SetCursorShape(c)
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return nil
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}
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}
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ebiten.SetCursorShape(ebiten.CursorShapeDefault)
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return nil
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}
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func (g *Game) Draw(screen *ebiten.Image) {
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for r, c := range g.gridColors {
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ebitenutil.DrawRect(screen, float64(r.Min.X), float64(r.Min.Y), float64(r.Dx()), float64(r.Dy()), c)
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}
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switch ebiten.CursorShape() {
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case ebiten.CursorShapeDefault:
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ebitenutil.DebugPrint(screen, "CursorShape: Default")
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case ebiten.CursorShapeText:
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ebitenutil.DebugPrint(screen, "CursorShape: Text")
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case ebiten.CursorShapeCrosshair:
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ebitenutil.DebugPrint(screen, "CursorShape: Crosshair")
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case ebiten.CursorShapePointer:
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ebitenutil.DebugPrint(screen, "CursorShape: Pointer")
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}
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}
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func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
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return screenWidth, screenHeight
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}
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func main() {
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g := &Game{
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grids: map[image.Rectangle]ebiten.CursorShapeType{
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image.Rect(100, 100, 200, 300): ebiten.CursorShapeDefault,
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image.Rect(200, 100, 300, 300): ebiten.CursorShapeText,
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image.Rect(300, 100, 400, 300): ebiten.CursorShapeCrosshair,
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image.Rect(400, 100, 500, 300): ebiten.CursorShapePointer,
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},
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gridColors: map[image.Rectangle]color.Color{},
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}
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for rect, c := range g.grids {
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clr := color.RGBA{0x40, 0x40, 0x40, 0xff}
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switch c % 3 {
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case 0:
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clr.R = 0x80
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case 1:
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clr.G = 0x80
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case 2:
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clr.B = 0x80
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}
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g.gridColors[rect] = clr
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}
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ebiten.SetWindowSize(screenWidth, screenHeight)
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ebiten.SetWindowTitle("Cursor (Ebiten Demo)")
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if err := ebiten.RunGame(g); err != nil {
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log.Fatal(err)
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}
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}
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