From 48e02a67356b062a772417c6a5fee5bfc3753b2e Mon Sep 17 00:00:00 2001
From: lili <1307862086@qq.com>
Date: Sat, 30 Aug 2025 20:30:50 +0800
Subject: [PATCH] modeless dialog

---
 src/motif_test.c | 53 ++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 42 insertions(+), 11 deletions(-)

diff --git a/src/motif_test.c b/src/motif_test.c
index c771ac0..072af92 100644
--- a/src/motif_test.c
+++ b/src/motif_test.c
@@ -19,6 +19,8 @@
 
 #define PAD 8
 
+Widget active_dialog = NULL;
+
 void button_callback(Widget widget, XtPointer client_data, XtPointer call_data)
 {
     puts("Button clicked!");
@@ -29,19 +31,36 @@ void quit_callback(Widget widget, XtPointer client_data, XtPointer call_data)
     exit(0);
 }
 
-void dialog_callback(Widget widget, XtPointer client_data, XtPointer call_data)
+void open_dialog(Widget parent, const char *message)
 {
-    Widget parent = (Widget)client_data;
-    XmString msg = XmStringCreateLocalized("Hello from a secondary dialog!");
-    Widget dialog = XmCreateMessageDialog(parent, "dialog", NULL, 0);
-    XtVaSetValues(dialog,
-                  XmNdialogStyle, XmDIALOG_FULL_APPLICATION_MODAL,
+    if (active_dialog && XtIsManaged(active_dialog))
+    {
+        XtDestroyWidget(active_dialog);
+        active_dialog = NULL;
+    }
+
+    XmString msg = XmStringCreateLocalized((char *)message);
+    active_dialog = XmCreateMessageDialog(parent, "dialog", NULL, 0);
+    XtVaSetValues(active_dialog,
+                  XmNdialogStyle, XmDIALOG_MODELESS, /* 非模态 */
                   XmNmessageString, msg,
                   NULL);
     XmStringFree(msg);
-    XtManageChild(dialog);
+
+    XtManageChild(active_dialog);
 }
 
+void btn1_cb(Widget w, XtPointer client_data, XtPointer call_data)
+{
+    open_dialog((Widget)client_data, "This is Dialog 1");
+}
+
+void btn2_cb(Widget w, XtPointer client_data, XtPointer call_data)
+{
+    open_dialog((Widget)client_data, "This is Dialog 2");
+}
+
+
 int main(int argc, char *argv[])
 {
     XtAppContext app;
@@ -107,7 +126,7 @@ int main(int argc, char *argv[])
     XtAddCallback(button, XmNactivateCallback, button_callback, NULL);
 
     /* 打开二级对话框的按钮 */
-    Widget dialogBtn = XtVaCreateManagedWidget("Show Dialog",
+    Widget dialogBtn1 = XtVaCreateManagedWidget("Show Dialog1",
                                                xmPushButtonWidgetClass, form,
                                                XmNtopAttachment, XmATTACH_WIDGET,
                                                XmNtopWidget, button,
@@ -117,13 +136,25 @@ int main(int argc, char *argv[])
                                                XmNrightAttachment, XmATTACH_FORM,
                                                XmNrightOffset, PAD,
                                                NULL);
-    XtAddCallback(dialogBtn, XmNactivateCallback, dialog_callback, form);
+    XtAddCallback(dialogBtn1, XmNactivateCallback, btn1_cb, form);
+
+    Widget dialogBtn2 = XtVaCreateManagedWidget("Show Dialog2",
+                                               xmPushButtonWidgetClass, form,
+                                               XmNtopAttachment, XmATTACH_WIDGET,
+                                               XmNtopWidget, dialogBtn1,
+                                               XmNtopOffset, PAD,
+                                               XmNleftAttachment, XmATTACH_FORM,
+                                               XmNleftOffset, PAD,
+                                               XmNrightAttachment, XmATTACH_FORM,
+                                               XmNrightOffset, PAD,
+                                               NULL);
+    XtAddCallback(dialogBtn2, XmNactivateCallback, btn2_cb, form);
 
     /* 文本框 */
     Widget text = XtVaCreateManagedWidget("text",
                                           xmTextWidgetClass, form,
                                           XmNtopAttachment, XmATTACH_WIDGET,
-                                          XmNtopWidget, dialogBtn,
+                                          XmNtopWidget, dialogBtn2,
                                           XmNtopOffset, PAD,
                                           XmNleftAttachment, XmATTACH_FORM,
                                           XmNleftOffset, PAD,
@@ -221,7 +252,7 @@ int main(int argc, char *argv[])
         {
             /* 空闲时可以执行后台逻辑 */
             printf("Idle...\n");
-            usleep(500000); /* 0.5秒 */
+            usleep(50000); /* 0.05秒 */
         }
     }