Add lvgl

lvgl/_demo/example/demo.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"time"
+
+	"github.com/goplus/lib/c"
+	"github.com/goplus/llpkg/lvgl"
+)
+
+func main() {
+	// Initialize LVGL
+	lvgl.Init()
+	disp := lvgl.SdlWindowCreate(480, 320)
+	lvgl.SdlMouseCreate()
+	lvgl.SdlKeyboardCreate()
+
+	disp.SdlWindowSetZoom(1.0)
+	disp.SdlWindowSetTitle(c.Str("Profile Page"))
+
+	//lv_example_style_1() // 背景
+	//lv_example_style_2() // 渐变 -- 有问题
+	//lv_example_style_3() // 边框
+	//lv_example_style_4() // 轮廓
+	//lv_example_style_5() // 阴影
+	//lv_example_style_6() // 图片
+	lv_example_get_started_2() // 按钮
+	//lv_example_get_started_3() // 滑块
+	//lv_example_get_started_4() // 标签
+	//lv_example_anim_1() // 动画
+	// Main event loop
+	for {
+		lvgl.TimerHandler()
+		time.Sleep(time.Millisecond * 5)
+	}
+}

lvgl/_demo/example/lv_example_get_started_2.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"github.com/goplus/lib/c"
+	"github.com/goplus/llpkg/lvgl"
+)
+
+//var cnt uint8 = 0
+
+func btn_event_cb(e *lvgl.EventT) {
+	code := e.EventGetCode()
+	btn := e.EventGetTarget()
+	//fmt.Println("code", code)
+	if code == lvgl.EVENT_CLICKED {
+
+		//cnt++
+		/*Get the first child of the button which is the label and change its text*/
+		label := (*lvgl.ObjT)(btn).ObjGetChild(0)
+
+		// c.Str(btnstr)
+
+		label.LabelSetTextFmt(c.Str("test"))
+	}
+}
+
+/**
+ * Create a button with a label and react on click event.
+ */
+func lv_example_get_started_2() {
+	objT := lvgl.ScreenActive()
+	btn := objT.ButtonCreate()                           /*Add a button the current screen*/
+	btn.ObjSetPos(10, 10)                                /*Set its position*/
+	btn.ObjSetSize(120, 50)                              /*Set its size*/
+	btn.ObjAddEventCb(btn_event_cb, lvgl.EVENT_ALL, nil) /*Assign a callback to the button*/
+
+	label := btn.LabelCreate()          /*Add a label to the button*/
+	label.LabelSetText(c.Str("Button")) /*Set the labels text*/
+	label.ObjCenter()
+}

lvgl/go.mod

@@ -0,0 +1,5 @@
+module github.com/goplus/llpkg/lvgl
+
+go 1.20
+
+require github.com/goplus/lib v0.2.0

lvgl/go.sum

@@ -0,0 +1,2 @@
+github.com/goplus/lib v0.2.0 h1:AjqkN1XK5H23wZMMlpaUYAMCDAdSBQ2NMFrLtSh7W4g=
+github.com/goplus/lib v0.2.0/go.mod h1:SgJv3oPqLLHCu0gcL46ejOP3x7/2ry2Jtxu7ta32kp0=

lvgl/llcppg.cfg

@@ -0,0 +1,13 @@
+{
+	"name": "lvgl",
+	"cflags": "$(pkg-config --cflags lvgl)",
+	"libs": "$(pkg-config --libs lvgl sdl2)",
+	"include": [
+		"lvgl_private.h",
+		"lvgl.h",
+		"lv_conf.h",
+		"lv_version.h"
+	],
+	"trimPrefixes": ["lv_", "LV_"],
+	"staticLib": true
+}