Initial commit
This is the latest version found at http://scentric.net/tutorial/treeview-tutorial-xml.tar.gz
This commit is contained in:
12
examples/custom-cell-renderer/Makefile
Normal file
12
examples/custom-cell-renderer/Makefile
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@@ -0,0 +1,12 @@
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CC = gcc
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OBJS = main.o custom-cell-renderer-progressbar.o
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CFLAGS = -g -O2 `pkg-config --cflags gtk+-2.0`
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customlist: $(OBJS)
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gcc -o customcellrenderer $(OBJS) `pkg-config --libs gtk+-2.0`
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clean:
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rm $(OBJS) customcellrenderer 2>/dev/null || /bin/true
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353
examples/custom-cell-renderer/custom-cell-renderer-progressbar.c
Normal file
353
examples/custom-cell-renderer/custom-cell-renderer-progressbar.c
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@@ -0,0 +1,353 @@
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/***********************************************************
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*
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* custom-cell-renderer-progressbar.c
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*
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* part of the Gtk+ tree view tutorial
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*
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* by Tim-Philipp Mueller < tim at centricular dot net >
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*
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***********************************************************/
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#include "custom-cell-renderer-progressbar.h"
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/* This is based mainly on GtkCellRendererProgress
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* in GAIM, written and (c) 2002 by Sean Egan
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* (Licensed under the GPL), which in turn is
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* based on Gtk's GtkCellRenderer[Text|Toggle|Pixbuf]
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* implementation by Jonathan Blandford */
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/* Some boring function declarations: GObject type system stuff */
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static void custom_cell_renderer_progress_init (CustomCellRendererProgress *cellprogress);
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static void custom_cell_renderer_progress_class_init (CustomCellRendererProgressClass *klass);
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static void custom_cell_renderer_progress_get_property (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec);
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static void custom_cell_renderer_progress_set_property (GObject *object,
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guint param_id,
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const GValue *value,
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GParamSpec *pspec);
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static void custom_cell_renderer_progress_finalize (GObject *gobject);
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/* These functions are the heart of our custom cell renderer: */
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static void custom_cell_renderer_progress_get_size (GtkCellRenderer *cell,
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GtkWidget *widget,
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GdkRectangle *cell_area,
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gint *x_offset,
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gint *y_offset,
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gint *width,
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gint *height);
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static void custom_cell_renderer_progress_render (GtkCellRenderer *cell,
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GdkWindow *window,
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GtkWidget *widget,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GdkRectangle *expose_area,
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guint flags);
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enum
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{
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PROP_PERCENTAGE = 1,
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};
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static gpointer parent_class;
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/***************************************************************************
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*
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* custom_cell_renderer_progress_get_type: here we register our type with
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* the GObject type system if we
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* haven't done so yet. Everything
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* else is done in the callbacks.
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*
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***************************************************************************/
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GType
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custom_cell_renderer_progress_get_type (void)
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{
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static GType cell_progress_type = 0;
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if (cell_progress_type)
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return cell_progress_type;
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if (1)
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{
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static const GTypeInfo cell_progress_info =
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{
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sizeof (CustomCellRendererProgressClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) custom_cell_renderer_progress_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (CustomCellRendererProgress),
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0, /* n_preallocs */
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(GInstanceInitFunc) custom_cell_renderer_progress_init,
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};
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/* Derive from GtkCellRenderer */
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cell_progress_type = g_type_register_static (GTK_TYPE_CELL_RENDERER,
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"CustomCellRendererProgress",
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&cell_progress_info,
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0);
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}
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return cell_progress_type;
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}
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/***************************************************************************
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*
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* custom_cell_renderer_progress_init: set some default properties of the
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* parent (GtkCellRenderer).
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*
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***************************************************************************/
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static void
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custom_cell_renderer_progress_init (CustomCellRendererProgress *cellrendererprogress)
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{
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GTK_CELL_RENDERER(cellrendererprogress)->mode = GTK_CELL_RENDERER_MODE_INERT;
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GTK_CELL_RENDERER(cellrendererprogress)->xpad = 2;
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GTK_CELL_RENDERER(cellrendererprogress)->ypad = 2;
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}
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/***************************************************************************
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*
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* custom_cell_renderer_progress_class_init:
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*
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* set up our own get_property and set_property functions, and
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* override the parent's functions that we need to implement.
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* And make our new "percentage" property known to the type system.
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* If you want cells that can be activated on their own (ie. not
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* just the whole row selected) or cells that are editable, you
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* will need to override 'activate' and 'start_editing' as well.
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*
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***************************************************************************/
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static void
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custom_cell_renderer_progress_class_init (CustomCellRendererProgressClass *klass)
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{
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GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS(klass);
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GObjectClass *object_class = G_OBJECT_CLASS(klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = custom_cell_renderer_progress_finalize;
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/* Hook up functions to set and get our
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* custom cell renderer properties */
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object_class->get_property = custom_cell_renderer_progress_get_property;
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object_class->set_property = custom_cell_renderer_progress_set_property;
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/* Override the two crucial functions that are the heart
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* of a cell renderer in the parent class */
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cell_class->get_size = custom_cell_renderer_progress_get_size;
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cell_class->render = custom_cell_renderer_progress_render;
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/* Install our very own properties */
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g_object_class_install_property (object_class,
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PROP_PERCENTAGE,
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g_param_spec_double ("percentage",
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"Percentage",
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"The fractional progress to display",
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0.0, 1.0, 0.0,
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G_PARAM_READWRITE));
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}
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/***************************************************************************
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*
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* custom_cell_renderer_progress_finalize: free any resources here
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*
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***************************************************************************/
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static void
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custom_cell_renderer_progress_finalize (GObject *object)
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{
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/*
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CustomCellRendererProgress *cellrendererprogress = CUSTOM_CELL_RENDERER_PROGRESS(object);
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*/
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/* Free any dynamically allocated resources here */
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(* G_OBJECT_CLASS (parent_class)->finalize) (object);
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}
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/***************************************************************************
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*
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* custom_cell_renderer_progress_get_property: as it says
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*
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***************************************************************************/
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static void
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custom_cell_renderer_progress_get_property (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *psec)
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{
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CustomCellRendererProgress *cellprogress = CUSTOM_CELL_RENDERER_PROGRESS(object);
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switch (param_id)
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{
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case PROP_PERCENTAGE:
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g_value_set_double(value, cellprogress->progress);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, psec);
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break;
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}
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}
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/***************************************************************************
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*
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* custom_cell_renderer_progress_set_property: as it says
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*
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***************************************************************************/
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static void
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custom_cell_renderer_progress_set_property (GObject *object,
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guint param_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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CustomCellRendererProgress *cellprogress = CUSTOM_CELL_RENDERER_PROGRESS (object);
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switch (param_id)
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{
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case PROP_PERCENTAGE:
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cellprogress->progress = g_value_get_double(value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
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break;
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}
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}
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/***************************************************************************
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*
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* custom_cell_renderer_progress_new: return a new cell renderer instance
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*
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***************************************************************************/
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GtkCellRenderer *
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custom_cell_renderer_progress_new (void)
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{
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return g_object_new(CUSTOM_TYPE_CELL_RENDERER_PROGRESS, NULL);
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}
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/***************************************************************************
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*
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* custom_cell_renderer_progress_get_size: crucial - calculate the size
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* of our cell, taking into account
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* padding and alignment properties
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* of parent.
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*
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***************************************************************************/
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#define FIXED_WIDTH 100
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#define FIXED_HEIGHT 10
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static void
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custom_cell_renderer_progress_get_size (GtkCellRenderer *cell,
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GtkWidget *widget,
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GdkRectangle *cell_area,
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gint *x_offset,
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gint *y_offset,
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gint *width,
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gint *height)
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{
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gint calc_width;
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gint calc_height;
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calc_width = (gint) cell->xpad * 2 + FIXED_WIDTH;
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calc_height = (gint) cell->ypad * 2 + FIXED_HEIGHT;
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if (width)
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*width = calc_width;
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if (height)
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*height = calc_height;
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if (cell_area)
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{
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if (x_offset)
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{
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*x_offset = cell->xalign * (cell_area->width - calc_width);
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*x_offset = MAX (*x_offset, 0);
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}
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if (y_offset)
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{
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*y_offset = cell->yalign * (cell_area->height - calc_height);
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*y_offset = MAX (*y_offset, 0);
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}
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}
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}
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/***************************************************************************
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*
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* custom_cell_renderer_progress_render: crucial - do the rendering.
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*
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***************************************************************************/
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static void
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custom_cell_renderer_progress_render (GtkCellRenderer *cell,
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GdkWindow *window,
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GtkWidget *widget,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GdkRectangle *expose_area,
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guint flags)
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{
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CustomCellRendererProgress *cellprogress = CUSTOM_CELL_RENDERER_PROGRESS (cell);
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GtkStateType state;
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gint width, height;
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gint x_offset, y_offset;
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custom_cell_renderer_progress_get_size (cell, widget, cell_area,
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&x_offset, &y_offset,
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&width, &height);
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if (GTK_WIDGET_HAS_FOCUS (widget))
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state = GTK_STATE_ACTIVE;
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else
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state = GTK_STATE_NORMAL;
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width -= cell->xpad*2;
|
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height -= cell->ypad*2;
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gtk_paint_box (widget->style,
|
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window,
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GTK_STATE_NORMAL, GTK_SHADOW_IN,
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NULL, widget, "trough",
|
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cell_area->x + x_offset + cell->xpad,
|
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cell_area->y + y_offset + cell->ypad,
|
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width - 1, height - 1);
|
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|
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gtk_paint_box (widget->style,
|
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window,
|
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state, GTK_SHADOW_OUT,
|
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NULL, widget, "bar",
|
||||
cell_area->x + x_offset + cell->xpad,
|
||||
cell_area->y + y_offset + cell->ypad,
|
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width * cellprogress->progress,
|
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height - 1);
|
||||
}
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|
||||
|
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@@ -0,0 +1,55 @@
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/***********************************************************
|
||||
*
|
||||
* custom-cell-renderer-progressbar.h
|
||||
*
|
||||
* part of the Gtk+ tree view tutorial
|
||||
*
|
||||
* by Tim-Philipp Mueller < tim at centricular dot net >
|
||||
*
|
||||
***********************************************************/
|
||||
|
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#ifndef _custom_cell_renderer_progressbar_included_
|
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#define _custom_cell_renderer_progressbar_included_
|
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|
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#include <gtk/gtk.h>
|
||||
|
||||
|
||||
/* Some boilerplate GObject type check and type cast macros.
|
||||
* 'klass' is used here instead of 'class', because 'class'
|
||||
* is a c++ keyword */
|
||||
|
||||
|
||||
#define CUSTOM_TYPE_CELL_RENDERER_PROGRESS (custom_cell_renderer_progress_get_type())
|
||||
#define CUSTOM_CELL_RENDERER_PROGRESS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), CUSTOM_TYPE_CELL_RENDERER_PROGRESS, CustomCellRendererProgress))
|
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#define CUSTOM_CELL_RENDERER_PROGRESS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CUSTOM_TYPE_CELL_RENDERER_PROGRESS, CustomCellRendererProgressClass))
|
||||
#define CUSTOM_IS_CELL_PROGRESS_PROGRESS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CUSTOM_TYPE_CELL_RENDERER_PROGRESS))
|
||||
#define CUSTOM_IS_CELL_PROGRESS_PROGRESS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CUSTOM_TYPE_CELL_RENDERER_PROGRESS))
|
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#define CUSTOM_CELL_RENDERER_PROGRESS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CUSTOM_TYPE_CELL_RENDERER_PROGRESS, CustomCellRendererProgressClass))
|
||||
|
||||
typedef struct _CustomCellRendererProgress CustomCellRendererProgress;
|
||||
typedef struct _CustomCellRendererProgressClass CustomCellRendererProgressClass;
|
||||
|
||||
/* CustomCellRendererProgress: Our custom cell renderer
|
||||
* structure. Extend according to need */
|
||||
|
||||
struct _CustomCellRendererProgress
|
||||
{
|
||||
GtkCellRenderer parent;
|
||||
|
||||
gdouble progress;
|
||||
};
|
||||
|
||||
struct _CustomCellRendererProgressClass
|
||||
{
|
||||
GtkCellRendererClass parent_class;
|
||||
};
|
||||
|
||||
GType custom_cell_renderer_progress_get_type (void);
|
||||
|
||||
GtkCellRenderer *custom_cell_renderer_progress_new (void);
|
||||
|
||||
|
||||
#endif /* _custom_cell_renderer_progressbar_included_ */
|
||||
|
||||
|
||||
|
||||
114
examples/custom-cell-renderer/main.c
Normal file
114
examples/custom-cell-renderer/main.c
Normal file
@@ -0,0 +1,114 @@
|
||||
/***********************************************************
|
||||
*
|
||||
* main.c - testing CustomCellRendererProgress
|
||||
*
|
||||
* part of the Gtk+ tree view tutorial
|
||||
*
|
||||
* by Tim-Philipp Mueller < tim at centricular dot net >
|
||||
*
|
||||
***********************************************************/
|
||||
|
||||
#include "custom-cell-renderer-progressbar.h"
|
||||
|
||||
static GtkListStore *liststore;
|
||||
|
||||
static gboolean increasing = TRUE; /* direction of progress bar change */
|
||||
|
||||
enum
|
||||
{
|
||||
COL_PERCENTAGE = 0,
|
||||
COL_TEXT,
|
||||
NUM_COLS
|
||||
};
|
||||
|
||||
#define STEP 0.01
|
||||
|
||||
gboolean
|
||||
increase_progress_timeout (GtkCellRenderer *renderer)
|
||||
{
|
||||
GtkTreeIter iter;
|
||||
gfloat perc = 0.0;
|
||||
gchar buf[20];
|
||||
|
||||
gtk_tree_model_get_iter_first(GTK_TREE_MODEL(liststore), &iter); /* first and only row */
|
||||
|
||||
gtk_tree_model_get (GTK_TREE_MODEL(liststore), &iter, COL_PERCENTAGE, &perc, -1);
|
||||
|
||||
if ( perc > (1.0-STEP) || (perc < STEP && perc > 0.0) )
|
||||
{
|
||||
increasing = (!increasing);
|
||||
}
|
||||
|
||||
if (increasing)
|
||||
perc = perc + STEP;
|
||||
else
|
||||
perc = perc - STEP;
|
||||
|
||||
g_snprintf(buf, sizeof(buf), "%u %%", (guint)(perc*100));
|
||||
|
||||
gtk_list_store_set (liststore, &iter, COL_PERCENTAGE, perc, COL_TEXT, buf, -1);
|
||||
|
||||
return TRUE; /* Call again */
|
||||
}
|
||||
|
||||
|
||||
GtkWidget *
|
||||
create_view_and_model (void)
|
||||
{
|
||||
GtkTreeViewColumn *col;
|
||||
GtkCellRenderer *renderer;
|
||||
GtkTreeIter iter;
|
||||
GtkWidget *view;
|
||||
|
||||
liststore = gtk_list_store_new(NUM_COLS, G_TYPE_FLOAT, G_TYPE_STRING);
|
||||
gtk_list_store_append(liststore, &iter);
|
||||
gtk_list_store_set (liststore, &iter, COL_PERCENTAGE, 0.5, -1); /* start at 50% */
|
||||
|
||||
view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(liststore));
|
||||
|
||||
g_object_unref(liststore); /* destroy store automatically with view */
|
||||
|
||||
renderer = gtk_cell_renderer_text_new();
|
||||
col = gtk_tree_view_column_new();
|
||||
gtk_tree_view_column_pack_start (col, renderer, TRUE);
|
||||
gtk_tree_view_column_add_attribute (col, renderer, "text", COL_TEXT);
|
||||
gtk_tree_view_column_set_title (col, "Progress");
|
||||
gtk_tree_view_append_column(GTK_TREE_VIEW(view),col);
|
||||
|
||||
renderer = custom_cell_renderer_progress_new();
|
||||
col = gtk_tree_view_column_new();
|
||||
gtk_tree_view_column_pack_start (col, renderer, TRUE);
|
||||
gtk_tree_view_column_add_attribute (col, renderer, "percentage", COL_PERCENTAGE);
|
||||
gtk_tree_view_column_set_title (col, "Progress");
|
||||
gtk_tree_view_append_column(GTK_TREE_VIEW(view),col);
|
||||
|
||||
g_timeout_add(50, (GSourceFunc) increase_progress_timeout, NULL);
|
||||
|
||||
return view;
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
main (int argc, char **argv)
|
||||
{
|
||||
GtkWidget *window, *view;
|
||||
|
||||
gtk_init(&argc,&argv);
|
||||
|
||||
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
|
||||
gtk_window_set_default_size (GTK_WINDOW(window), 150, 100);
|
||||
g_signal_connect(window, "delete_event", gtk_main_quit, NULL);
|
||||
|
||||
view = create_view_and_model();
|
||||
|
||||
gtk_container_add(GTK_CONTAINER(window), view);
|
||||
|
||||
gtk_widget_show_all(window);
|
||||
|
||||
gtk_main();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user