From 45380da631323305523564533555b468685104f8 Mon Sep 17 00:00:00 2001
From: Jonathan Schleifer <js@webkeks.org>
Date: Wed, 28 Dec 2011 20:23:01 +0100
Subject: [PATCH] Initial OGComboBox implementation. Only support for text so
 far.

---
 gtk/OGComboBox.m         | 78 ++++++++++++++++++++++++++++++++++++++++
 gtk/OGComboBoxItem.m     | 31 ++++++++++++++++
 headers/OGBox.h          |  1 -
 headers/OGComboBox.h     | 27 ++++++++++++++
 headers/OGComboBoxItem.h | 12 +++++++
 5 files changed, 148 insertions(+), 1 deletion(-)
 create mode 100644 gtk/OGComboBox.m
 create mode 100644 gtk/OGComboBoxItem.m
 create mode 100644 headers/OGComboBox.h
 create mode 100644 headers/OGComboBoxItem.h

diff --git a/gtk/OGComboBox.m b/gtk/OGComboBox.m
new file mode 100644
index 0000000..56f4106
--- /dev/null
+++ b/gtk/OGComboBox.m
@@ -0,0 +1,78 @@
+#import "OGComboBox.h"
+
+@interface OGComboBox ()
+- (void)OG_changed;
+@end
+
+static void
+changed(GtkWidget *widget, gpointer data)
+{
+	[(OGComboBox*)data OG_changed];
+}
+
+@implementation OGComboBox
+@synthesize delegate;
+
++ comboBox
+{
+	return [[[self alloc] init] autorelease];
+}
+
+- init
+{
+	self = [super init];
+
+	widget = gtk_combo_box_new();
+	GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
+	gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(widget), renderer, FALSE);
+	gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(widget), renderer,
+	    "text", 0, NULL);
+	g_signal_connect(G_OBJECT(widget), "changed", G_CALLBACK(changed),
+	    self);
+
+	g_signal_connect(G_OBJECT(widget), "destroy", G_CALLBACK(og_destroy),
+	    self);
+	[self retain];
+
+	return self;
+}
+
+- (id <OGComboBoxDataSource>)dataSource
+{
+	return dataSource;
+}
+
+- (void)setDataSource: (id <OGComboBoxDataSource>)dataSource_
+{
+	GtkListStore *listStore = gtk_list_store_new(1, G_TYPE_STRING);
+	GtkTreeIter iter;
+	OGComboBoxItem* (*itemAtIndex)(id, SEL, OGComboBox*, size_t);
+
+	dataSource = dataSource_;
+	itemAtIndex = (OGComboBoxItem*(*)(id, SEL, OGComboBox*, size_t))
+	    [dataSource methodForSelector: @selector(comboBox:itemAtIndex:)];
+
+	size_t i, size = [dataSource numberOfItemsInComboBox: self];
+	for (i = 0; i < size; i++) {
+		OGComboBoxItem *item = itemAtIndex(dataSource,
+		    @selector(comboBox:itemAtIndex:), self, i);
+
+		gtk_list_store_append(listStore, &iter);
+		gtk_list_store_set(listStore, &iter, 0,
+		    [item.label UTF8String], -1);
+	}
+
+	gtk_combo_box_set_model(GTK_COMBO_BOX(widget),
+	    GTK_TREE_MODEL(listStore));
+}
+
+- (void)OG_changed
+{
+	OFAutoreleasePool *pool = [OFAutoreleasePool new];
+
+	if ([delegate respondsToSelector: @selector(comboBoxWasChanged:)])
+		[delegate comboBoxWasChanged: self];
+
+	[pool release];
+}
+@end
diff --git a/gtk/OGComboBoxItem.m b/gtk/OGComboBoxItem.m
new file mode 100644
index 0000000..3094bcc
--- /dev/null
+++ b/gtk/OGComboBoxItem.m
@@ -0,0 +1,31 @@
+#import "OGComboBoxItem.h"
+
+@implementation OGComboBoxItem
+@synthesize label;
+
++ comboBoxItemWithLabel: (OFString*)label
+{
+	return [[[self alloc] initWithLabel: label] autorelease];
+}
+
+- initWithLabel: (OFString*)label_
+{
+	self = [super init];
+
+	@try {
+		label = [label_ copy];
+	} @catch (id e) {
+		[self release];
+		@throw e;
+	}
+
+	return self;
+}
+
+- (void)dealloc
+{
+	[label release];
+
+	[super dealloc];
+}
+@end
diff --git a/headers/OGBox.h b/headers/OGBox.h
index 90b7d4b..0df22fc 100644
--- a/headers/OGBox.h
+++ b/headers/OGBox.h
@@ -2,7 +2,6 @@
 
 @interface OGBox: OGWidget
 + box;
-
 - (void)appendChild: (OGWidget*)child
 	     expand: (BOOL)expand
 	       fill: (BOOL)fill
diff --git a/headers/OGComboBox.h b/headers/OGComboBox.h
new file mode 100644
index 0000000..1d158be
--- /dev/null
+++ b/headers/OGComboBox.h
@@ -0,0 +1,27 @@
+#import "OGWidget.h"
+#import "OGComboBoxItem.h"
+
+@class OGComboBox;
+
+@protocol OGComboBoxDelegate <OFObject>
+@optional
+- (void)comboBoxWasChanged: (OGComboBox*)comboBox;
+@end
+
+@protocol OGComboBoxDataSource <OFObject>
+- (size_t)numberOfItemsInComboBox: (OGComboBox*)comboBox;
+- (OGComboBoxItem*)comboBox: (OGComboBox*)comboBox
+		itemAtIndex: (size_t)index;
+@end
+
+@interface OGComboBox: OGWidget
+{
+	id <OGComboBoxDelegate> delegate;
+	id <OGComboBoxDataSource> dataSource;
+}
+
+@property (assign) id <OGComboBoxDelegate> delegate;
+@property (assign) id <OGComboBoxDataSource> dataSource;
+
++ comboBox;
+@end
diff --git a/headers/OGComboBoxItem.h b/headers/OGComboBoxItem.h
new file mode 100644
index 0000000..74012c0
--- /dev/null
+++ b/headers/OGComboBoxItem.h
@@ -0,0 +1,12 @@
+#import <ObjFW/OFString.h>
+
+@interface OGComboBoxItem: OFObject
+{
+	OFString *label;
+}
+
+@property (copy) OFString *label;
+
++ comboBoxItemWithLabel: (OFString*)label;
+- initWithLabel: (OFString*)label;
+@end