Add support for QLayout

Including qt:add & qt:find.

main.cpp

@@ -3,6 +3,7 @@
 
 #include <QtGui>
 #include <QtUiTools>
+#include <QLayout>
 #include <QOpenGLWidget>
 #include <QtMultimedia/QSoundEffect>
 #include <chicken.h>
@@ -70,6 +71,7 @@ protected:
 #define qtsound           QSoundEffect *
 #define qttextedit        QTextEdit *
 #define qtaction          QAction *
+#define qtlayout          QLayout *
 
 extern "C" {
 #include "prototypes.h"
@@ -464,6 +466,7 @@ int qt_propertytype(qtwidget w, char *prop)
 
 
 const char *qt_classname(qtobject w) { return w->metaObject()->className(); }
+___bool qt_inherits(qtobject w, const char *classname) { return w->inherits(classname); }
 qtwidget qt_gl(char *name, qtwidget parent, C_word proc) { return new OpenGLWidget(name, parent, proc); }
 void qt_update(qtwidget w) { w->update(); }
 
@@ -493,6 +496,8 @@ char *qt_listwidgetitem(qtwidget w, int i) {
   return qstrdata(((QListWidget *)w)->item(i)->text());
 }
 
+void qt_addlayoutwidget(qtlayout l, qtwidget w) { l->addWidget(w); }
+
 qtsound qt_sound(char *filename) {
   QSoundEffect* sound = new QSoundEffect();
   sound->setSource(QUrl::fromLocalFile(filename));

prototypes.h

@@ -19,6 +19,7 @@ qtobject qt_find(qtobject parent, char *name);
 qtobject qt_receiver(char *name, C_word proc);
 int qt_message(char *caption, char *text, qtwidget parent, char *b0, char *b1, char *b2, int msg_type);
 const char *qt_classname(qtobject w);
+___bool qt_inherits(qtobject w, const char *classname);
 ___bool qt_setstringproperty(qtwidget w, char *prop, char *val);
 ___bool qt_setboolproperty(qtwidget w, char *prop, ___bool val);
 ___bool qt_setintproperty(qtwidget w, char *prop, int val);
@@ -55,6 +56,7 @@ void qt_addcomboboxitem(qtwidget w, char *s);
 void qt_addlistwidgetitem(qtwidget w, char *s);
 void qt_addtreewidgetitem(qtwidget w, char *s);
 char *qt_listwidgetitem(qtwidget w, int i);
+void qt_addlayoutwidget(qtlayout l, qtwidget w);
 char *qt_getexistingdirectory(qtwidget p, char *cap, char *dir, int opts);
 char *qt_getopenfilename(qtwidget p, char *cap, char *dir, char *filter, int opts);
 char *qt_getsavefilename(qtwidget p, char *cap, char *dir, char *filter, int opts);

qt-light.scm

@@ -7,7 +7,7 @@
 		  qt:widget qt:receiver qt:pixmap qt:icon qt:theme-icon qt:timer
           qt:icon->pixmap qt:pixmap->icon
 		  qt:property qt:gl qt:update qt:start qt:stop
-		  qt:clear qt:add qt:item <qt> qt:classname
+		  qt:clear qt:add qt:item <qt> qt:classname qt:inherits
 		  <qt-object> <qt-widget> <qt-pixmap> <qt-icon> <qt-application>
 		  <qt-receiver> <qt-timer> <qt-sound> <qt-text-edit>
 		  <qt-action>
@@ -49,9 +49,11 @@
 (define <qt-timer> (% <qt-object> (class 'qt-timer)))
 (define <qt-text-edit> (% <qt-widget> (class 'qt-text-edit)))
 (define <qt-action> (% <qt-object> (class 'qt-action)))
+(define <qt-layout> (% <qt-object> (class 'qt-layout)))
 
 (define (qt:->pointer i) (and i (? i pointer)))
 (define (qt:pointer->widget p) (and p (% <qt-widget> (pointer p))))
+(define (qt:pointer->layout p) (and p (% <qt-layout> (pointer p))))
 (define (qt:pointer->object p) (and p (% <qt-object> (pointer p))))
 (define (qt:pointer->timer p) (and p (% <qt-timer> (pointer p))))
 (define (qt:pointer->application p) (and p (% <qt-application> (pointer p))))
@@ -68,6 +70,7 @@
 (bind-type qtapplication c-pointer qt:->pointer qt:pointer->application)
 (bind-type qtpixmap c-pointer qt:->pointer qt:pointer->pixmap)
 (bind-type qticon c-pointer qt:->pointer qt:pointer->icon)
+(bind-type qtlayout c-pointer qt:->pointer qt:pointer->layout)
 (bind-type qtobject c-pointer qt:->pointer qt:pointer->object)
 (bind-type qttimer c-pointer qt:->pointer qt:pointer->timer)
 (bind-type qtreceiver c-pointer qt:->pointer qt:pointer->receiver)
@@ -107,6 +110,23 @@ extern "C" {
        (if (procedure? to) (qt:receiver to) to)
        (string-append "1" slot)) ) ) )
 
+(define qt:find
+  (let ((qt:find qt:find))
+    (lambda (o name)
+      (let ((result (qt:find o name)))
+        (if result
+            (cond ((qt:inherits result "QTextEdit")
+                   (qt:pointer->textedit (qt:->pointer result)))
+                  ((qt:inherits result "QWidget")
+                   (qt:pointer->widget (qt:->pointer result)))
+                  ((qt:inherits result "QAction")
+                   (qt:pointer->action (qt:->pointer result)))
+                  ((qt:inherits result "QLayout")
+                   (qt:pointer->layout (qt:->pointer result)))
+                  (#t
+                   result))
+            result)))))
+
 (define qt:receiver
   (let ((qt:receiver qt:receiver))
     (lambda (thunk #!optional (name (gensym "qt:receiver")))
@@ -197,9 +217,10 @@ extern "C" {
       (qt:run once) ) ) )
 
 (define (qt:add w x)
-  (cond ((string=? "QComboBox" (qt:classname w)) (qt:addcomboboxitem w x))
-	((string=? "QListWidget" (qt:classname w)) (qt:addlistwidgetitem w x))
-	((string=? "QTreeWidget" (qt:classname w)) (qt:addtreewidgetitem w x))
+  (cond ((qt:inherits w "QComboBox") (qt:addcomboboxitem w x))
+	((qt:inherits w "QListWidget") (qt:addlistwidgetitem w x))
+	((qt:inherits w "QTreeWidget") (qt:addtreewidgetitem w x))
+    ((qt:inherits w "QLayout") (qt:addlayoutwidget w x))
 	(else (error 'qt:add "invalid widget" w x)) ) )
 
 (define (qt:item w i) (and (positive? i) (qt:listwidgetitem w i)))