Merge pull request #299 from gucio321/examples-update

examples: add separated example for each backend
AllenDang · Sep 11, 2024 · 61f0fe2 · 61f0fe2
2 parents 12321aa + 311ddbd
commit 61f0fe2
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Showing 5 changed files with 325 additions and 4 deletions.
diff --git a/examples/test.jpeg → examples/assets/test.jpeg b/examples/test.jpeg → examples/assets/test.jpeg
diff --git a/examples/main.go → examples/ebiten/main.go b/examples/main.go → examples/ebiten/main.go
@@ -117,7 +117,7 @@ func init() {
 
 func main() {
 	var err error
-	img, err = imgui.LoadImage("./test.jpeg")
+	img, err = imgui.LoadImage("../assets/test.jpeg")
 	if err != nil {
 		panic("Failed to load test.jpeg")
 	}
@@ -134,9 +134,12 @@ func main() {
 
 	backend.CreateWindow("Hello from cimgui-go", 1200, 900)
 
-	backend.SetDropCallback(func(p []string) {
-		fmt.Printf("drop triggered: %v", p)
-	})
+	// TODO: not implemented
+	/*
+		backend.SetDropCallback(func(p []string) {
+			fmt.Printf("drop triggered: %v", p)
+		})
+	*/
 
 	backend.SetCloseCallback(func(b imgui.Backend[ebitenbackend.EbitenBackendFlags]) {
 		fmt.Println("window is closing")

diff --git a/examples/glfw/main.go b/examples/glfw/main.go
@@ -0,0 +1,147 @@
+package main
+
+import (
+	"fmt"
+	"image"
+	"runtime"
+
+	imgui "github.com/AllenDang/cimgui-go"
+)
+
+var (
+	showDemoWindow bool
+	value1         int32
+	value2         int32
+	value3         int32
+	values         [2]int32 = [2]int32{value1, value2}
+	content        string   = "Let me try"
+	r              float32
+	g              float32
+	b              float32
+	a              float32
+	color4         [4]float32 = [4]float32{r, g, b, a}
+	selected       bool
+	backend        imgui.Backend[imgui.GLFWWindowFlags]
+	img            *image.RGBA
+	texture        *imgui.Texture
+	barValues      []int64
+)
+
+func callback(data imgui.InputTextCallbackData) int {
+	fmt.Println("got call back")
+	return 0
+}
+
+func showWidgetsDemo() {
+	if showDemoWindow {
+		imgui.ShowDemoWindowV(&showDemoWindow)
+	}
+
+	imgui.SetNextWindowSizeV(imgui.NewVec2(300, 300), imgui.CondOnce)
+	imgui.Begin("Window 1")
+	if imgui.ButtonV("Click Me", imgui.NewVec2(80, 20)) {
+		w, h := backend.DisplaySize()
+		fmt.Println(w, h)
+	}
+	imgui.TextUnformatted("Unformatted text")
+	imgui.Checkbox("Show demo window", &showDemoWindow)
+	if imgui.BeginCombo("Combo", "Combo preview") {
+		imgui.SelectableBoolPtr("Item 1", &selected)
+		imgui.SelectableBool("Item 2")
+		imgui.SelectableBool("Item 3")
+		imgui.EndCombo()
+	}
+
+	if imgui.RadioButtonBool("Radio button1", selected) {
+		selected = true
+	}
+
+	imgui.SameLine()
+
+	if imgui.RadioButtonBool("Radio button2", !selected) {
+		selected = false
+	}
+
+	imgui.InputTextWithHint("Name", "write your name here", &content, 0, callback)
+	imgui.Text(content)
+	imgui.SliderInt("Slider int", &value3, 0, 100)
+	imgui.DragInt("Drag int", &value1)
+	imgui.DragInt2("Drag int2", &values)
+	value1 = values[0]
+	imgui.ColorEdit4("Color Edit3", &color4)
+	imgui.End()
+}
+
+func showPictureLoadingDemo() {
+	// demo of showing a picture
+	basePos := imgui.MainViewport().Pos()
+	imgui.SetNextWindowPosV(imgui.NewVec2(basePos.X+60, 600), imgui.CondOnce, imgui.NewVec2(0, 0))
+	imgui.Begin("Image")
+	imgui.Text(fmt.Sprintf("pointer = %v", texture.ID))
+	imgui.ImageV(texture.ID, imgui.NewVec2(float32(texture.Width), float32(texture.Height)), imgui.NewVec2(0, 0), imgui.NewVec2(1, 1), imgui.NewVec4(1, 1, 1, 1), imgui.NewVec4(0, 0, 0, 0))
+	imgui.End()
+}
+
+func showImPlotDemo() {
+	basePos := imgui.MainViewport().Pos()
+	imgui.SetNextWindowPosV(imgui.NewVec2(basePos.X+400, basePos.Y+60), imgui.CondOnce, imgui.NewVec2(0, 0))
+	imgui.SetNextWindowSizeV(imgui.NewVec2(500, 300), imgui.CondOnce)
+	imgui.Begin("Plot window")
+	if imgui.PlotBeginPlotV("Plot", imgui.NewVec2(-1, -1), 0) {
+		imgui.PlotPlotBarsS64PtrInt("Bar", barValues, int32(len(barValues)))
+		imgui.PlotPlotLineS64PtrInt("Line", barValues, int32(len(barValues)))
+		imgui.PlotEndPlot()
+	}
+	imgui.End()
+}
+
+func afterCreateContext() {
+	texture = imgui.NewTextureFromRgba(img)
+	imgui.PlotCreateContext()
+}
+
+func loop() {
+	showWidgetsDemo()
+	showPictureLoadingDemo()
+	showImPlotDemo()
+}
+
+func beforeDestroyContext() {
+	imgui.PlotDestroyContext()
+}
+
+func init() {
+	runtime.LockOSThread()
+}
+
+func main() {
+	var err error
+	img, err = imgui.LoadImage("../assets/test.jpeg")
+	if err != nil {
+		panic("Failed to load test.jpeg")
+	}
+
+	for i := 0; i < 10; i++ {
+		barValues = append(barValues, int64(i+1))
+	}
+
+	backend, _ = imgui.CreateBackend(imgui.NewGLFWBackend())
+	backend.SetAfterCreateContextHook(afterCreateContext)
+	backend.SetBeforeDestroyContextHook(beforeDestroyContext)
+
+	backend.SetBgColor(imgui.NewVec4(0.45, 0.55, 0.6, 1.0))
+
+	backend.CreateWindow("Hello from cimgui-go", 1200, 900)
+
+	backend.SetDropCallback(func(p []string) {
+		fmt.Printf("drop triggered: %v", p)
+	})
+
+	backend.SetCloseCallback(func(b imgui.Backend[imgui.GLFWWindowFlags]) {
+		fmt.Println("window is closing")
+	})
+
+	backend.SetIcons(img)
+
+	backend.Run(loop)
+}
diff --git a/examples/sdl/imgui.ini b/examples/sdl/imgui.ini
@@ -0,0 +1,22 @@
+[Window][Debug##Default]
+Pos=60,60
+Size=400,400
+Collapsed=0
+
+[Window][Window 1]
+Pos=60,60
+Size=300,300
+Collapsed=0
+
+[Window][Image]
+Pos=60,484
+Size=272,308
+Collapsed=0
+
+[Window][Plot window]
+Pos=342,349
+Size=500,253
+Collapsed=0
+
+[Docking][Data]
+
diff --git a/examples/sdl/main.go b/examples/sdl/main.go
@@ -0,0 +1,149 @@
+//go:build !darwin
+
+package main
+
+import (
+	"fmt"
+	"image"
+	"runtime"
+
+	imgui "github.com/AllenDang/cimgui-go"
+)
+
+var (
+	showDemoWindow bool
+	value1         int32
+	value2         int32
+	value3         int32
+	values         [2]int32 = [2]int32{value1, value2}
+	content        string   = "Let me try"
+	r              float32
+	g              float32
+	b              float32
+	a              float32
+	color4         [4]float32 = [4]float32{r, g, b, a}
+	selected       bool
+	backend        imgui.Backend[imgui.SDLWindowFlags]
+	img            *image.RGBA
+	texture        *imgui.Texture
+	barValues      []int64
+)
+
+func callback(data imgui.InputTextCallbackData) int {
+	fmt.Println("got call back")
+	return 0
+}
+
+func showWidgetsDemo() {
+	if showDemoWindow {
+		imgui.ShowDemoWindowV(&showDemoWindow)
+	}
+
+	imgui.SetNextWindowSizeV(imgui.NewVec2(300, 300), imgui.CondOnce)
+	imgui.Begin("Window 1")
+	if imgui.ButtonV("Click Me", imgui.NewVec2(80, 20)) {
+		w, h := backend.DisplaySize()
+		fmt.Println(w, h)
+	}
+	imgui.TextUnformatted("Unformatted text")
+	imgui.Checkbox("Show demo window", &showDemoWindow)
+	if imgui.BeginCombo("Combo", "Combo preview") {
+		imgui.SelectableBoolPtr("Item 1", &selected)
+		imgui.SelectableBool("Item 2")
+		imgui.SelectableBool("Item 3")
+		imgui.EndCombo()
+	}
+
+	if imgui.RadioButtonBool("Radio button1", selected) {
+		selected = true
+	}
+
+	imgui.SameLine()
+
+	if imgui.RadioButtonBool("Radio button2", !selected) {
+		selected = false
+	}
+
+	imgui.InputTextWithHint("Name", "write your name here", &content, 0, callback)
+	imgui.Text(content)
+	imgui.SliderInt("Slider int", &value3, 0, 100)
+	imgui.DragInt("Drag int", &value1)
+	imgui.DragInt2("Drag int2", &values)
+	value1 = values[0]
+	imgui.ColorEdit4("Color Edit3", &color4)
+	imgui.End()
+}
+
+func showPictureLoadingDemo() {
+	// demo of showing a picture
+	basePos := imgui.MainViewport().Pos()
+	imgui.SetNextWindowPosV(imgui.NewVec2(basePos.X+60, 600), imgui.CondOnce, imgui.NewVec2(0, 0))
+	imgui.Begin("Image")
+	imgui.Text(fmt.Sprintf("pointer = %v", texture.ID))
+	imgui.ImageV(texture.ID, imgui.NewVec2(float32(texture.Width), float32(texture.Height)), imgui.NewVec2(0, 0), imgui.NewVec2(1, 1), imgui.NewVec4(1, 1, 1, 1), imgui.NewVec4(0, 0, 0, 0))
+	imgui.End()
+}
+
+func showImPlotDemo() {
+	basePos := imgui.MainViewport().Pos()
+	imgui.SetNextWindowPosV(imgui.NewVec2(basePos.X+400, basePos.Y+60), imgui.CondOnce, imgui.NewVec2(0, 0))
+	imgui.SetNextWindowSizeV(imgui.NewVec2(500, 300), imgui.CondOnce)
+	imgui.Begin("Plot window")
+	if imgui.PlotBeginPlotV("Plot", imgui.NewVec2(-1, -1), 0) {
+		imgui.PlotPlotBarsS64PtrInt("Bar", barValues, int32(len(barValues)))
+		imgui.PlotPlotLineS64PtrInt("Line", barValues, int32(len(barValues)))
+		imgui.PlotEndPlot()
+	}
+	imgui.End()
+}
+
+func afterCreateContext() {
+	texture = imgui.NewTextureFromRgba(img)
+	imgui.PlotCreateContext()
+}
+
+func loop() {
+	showWidgetsDemo()
+	showPictureLoadingDemo()
+	showImPlotDemo()
+}
+
+func beforeDestroyContext() {
+	imgui.PlotDestroyContext()
+}
+
+func init() {
+	runtime.LockOSThread()
+}
+
+func main() {
+	var err error
+	img, err = imgui.LoadImage("../assets/test.jpeg")
+	if err != nil {
+		panic("Failed to load test.jpeg")
+	}
+
+	for i := 0; i < 10; i++ {
+		barValues = append(barValues, int64(i+1))
+	}
+
+	backend, _ = imgui.CreateBackend(imgui.NewSDLBackend())
+	backend.SetAfterCreateContextHook(afterCreateContext)
+	backend.SetBeforeDestroyContextHook(beforeDestroyContext)
+
+	backend.SetBgColor(imgui.NewVec4(0.45, 0.55, 0.6, 1.0))
+
+	backend.CreateWindow("Hello from cimgui-go", 1200, 900)
+
+	backend.SetDropCallback(func(p []string) {
+		fmt.Printf("drop triggered: %v", p)
+	})
+
+	backend.SetCloseCallback(func(b imgui.Backend[imgui.SDLWindowFlags]) {
+		fmt.Println("window is closing")
+	})
+
+	backend.SetIcons(img)
+
+	backend.Run(loop)
+}