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Updated GUI test which demonstrates signals used to update a label.

Subversion-branch: /trunk/chocolate-doom
Subversion-revision: 512

--- a/textscreen/guitest.c

+++ b/textscreen/guitest.c

@@ -19,10 +19,27 @@

     RADIO_VALUE_MUSHROOM,

     RADIO_VALUE_SNAKE,

 };

+char *radio_values[] = { "Badger", "Mushroom", "Snake" };

 int radiobutton_value;

+txt_label_t *value_label;

 txt_window_t *firstwin;

-int checkbox_value;

+int cheesy;

+void UpdateLabel(TXT_UNCAST_ARG(widget), void *user_data)

+{

+    char buf[40];

+    

+    strcpy(buf, " Current value: ");

+    if (cheesy)

+    {

+        strcat(buf, "Cheesy ");

+    }

+    strcat(buf, radio_values[radiobutton_value]);

+    strcat(buf, "\n");

+

+    TXT_SetLabel(value_label, buf);

+}

+

 void CloseWindow(TXT_UNCAST_ARG(button), void *user_data)

 {

     TXT_CloseWindow(firstwin);

@@ -34,6 +51,7 @@

     txt_table_t *table;

     txt_table_t *leftpane, *rightpane;

     txt_button_t *button;

+    txt_checkbox_t *cheesy_checkbox;

     char buf[100];

     int i;

@@ -59,20 +77,29 @@

     }

     TXT_AddWidget(window, TXT_NewLabel(""));

+    value_label = TXT_NewLabel("");

+    TXT_AddWidget(window, value_label);

     table = TXT_NewTable(2);

     TXT_AddWidget(window, table);

-    TXT_AddWidget(table, TXT_NewCheckBox("Checkbox", &checkbox_value));

+    cheesy_checkbox = TXT_NewCheckBox("Cheesy", &cheesy);

+    TXT_AddWidget(table, cheesy_checkbox);

+    TXT_SignalConnect(cheesy_checkbox, "changed", UpdateLabel, NULL);

     rightpane = TXT_NewTable(1);

     TXT_AddWidget(table, rightpane);

-    TXT_AddWidget(rightpane, TXT_NewRadioButton("Badger", &radiobutton_value,

-                                                RADIO_VALUE_BADGER));

-    TXT_AddWidget(rightpane, TXT_NewRadioButton("Mushroom", &radiobutton_value,

-                                                RADIO_VALUE_MUSHROOM));

-    TXT_AddWidget(rightpane, TXT_NewRadioButton("Snake", &radiobutton_value,

-                                                RADIO_VALUE_SNAKE));

+

+    for (i=0; i<3; ++i)

+    {

+        txt_radiobutton_t *rbut;

+

+        rbut = TXT_NewRadioButton(radio_values[i], &radiobutton_value, i);

+        TXT_AddWidget(rightpane, rbut);

+        TXT_SignalConnect(rbut, "selected", UpdateLabel, NULL);

+    }

+

+    UpdateLabel(NULL, NULL);

     button = TXT_NewButton("Close Window");

     TXT_AddWidget(window, button);