gtk2/demos/gtk-demo/main.c
2020-03-25 23:14:44 -04:00

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#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include <gtk/gtk.h>
#include <glib/gstdio.h>
#include "demos.h"
static GtkWidget *info_view;
static GtkWidget *source_view;
static gchar *current_file = NULL;
static GtkWidget *notebook;
static GtkWidget *treeview;
static GtkWidget *headerbar;
enum {
NAME_COLUMN,
TITLE_COLUMN,
FILENAME_COLUMN,
FUNC_COLUMN,
STYLE_COLUMN,
NUM_COLUMNS
};
typedef struct _CallbackData CallbackData;
struct _CallbackData
{
GtkTreeModel *model;
GtkTreePath *path;
};
static void
activate_about (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkApplication *app = user_data;
const gchar *authors[] = {
"The GTK Team",
NULL
};
char *version;
GString *s;
s = g_string_new ("");
g_string_append (s, "System libraries\n");
g_string_append_printf (s, "\tGLib\t%d.%d.%d\n",
glib_major_version,
glib_minor_version,
glib_micro_version);
g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
g_string_append_printf (s, "\nA link can apppear here: <http://www.gtk.org>");
version = g_strdup_printf ("%s\nRunning against GTK %d.%d.%d",
PACKAGE_VERSION,
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
gtk_show_about_dialog (GTK_WINDOW (gtk_application_get_active_window (app)),
"program-name", "GTK Demo",
"version", version,
"copyright", "©1997—2019 The GTK Team",
"license-type", GTK_LICENSE_LGPL_2_1,
"website", "http://www.gtk.org",
"comments", "Program to demonstrate GTK widgets",
"authors", authors,
"logo-icon-name", "org.gtk.Demo4",
"title", "About GTK Demo",
"system-information", s->str,
NULL);
g_string_free (s, TRUE);
g_free (version);
}
static void
activate_quit (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkApplication *app = user_data;
GtkWidget *win;
GList *list, *next;
list = gtk_application_get_windows (app);
while (list)
{
win = list->data;
next = list->next;
gtk_widget_destroy (GTK_WIDGET (win));
list = next;
}
}
static void
activate_inspector (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
gtk_window_set_interactive_debugging (TRUE);
}
static void
window_closed_cb (GtkWidget *window, gpointer data)
{
CallbackData *cbdata = data;
GtkTreeIter iter;
PangoStyle style;
gtk_tree_model_get_iter (cbdata->model, &iter, cbdata->path);
gtk_tree_model_get (GTK_TREE_MODEL (cbdata->model), &iter,
STYLE_COLUMN, &style,
-1);
if (style == PANGO_STYLE_ITALIC)
gtk_tree_store_set (GTK_TREE_STORE (cbdata->model), &iter,
STYLE_COLUMN, PANGO_STYLE_NORMAL,
-1);
gtk_tree_path_free (cbdata->path);
g_free (cbdata);
}
static void
run_example_for_row (GtkWidget *window,
GtkTreeModel *model,
GtkTreeIter *iter)
{
PangoStyle style;
GDoDemoFunc func;
GtkWidget *demo;
gtk_tree_model_get (GTK_TREE_MODEL (model),
iter,
FUNC_COLUMN, &func,
STYLE_COLUMN, &style,
-1);
if (func)
{
gtk_tree_store_set (GTK_TREE_STORE (model),
iter,
STYLE_COLUMN, (style == PANGO_STYLE_ITALIC ? PANGO_STYLE_NORMAL : PANGO_STYLE_ITALIC),
-1);
demo = (func) (window);
if (demo != NULL)
{
CallbackData *cbdata;
cbdata = g_new (CallbackData, 1);
cbdata->model = model;
cbdata->path = gtk_tree_model_get_path (model, iter);
if (GTK_IS_WINDOW (demo))
{
gtk_window_set_transient_for (GTK_WINDOW (demo), GTK_WINDOW (window));
gtk_window_set_modal (GTK_WINDOW (demo), TRUE);
}
g_signal_connect (demo, "destroy",
G_CALLBACK (window_closed_cb), cbdata);
}
}
}
static void
activate_run (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkWidget *window = user_data;
GtkTreeSelection *selection;
GtkTreeModel *model;
GtkTreeIter iter;
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
if (gtk_tree_selection_get_selected (selection, &model, &iter))
run_example_for_row (window, model, &iter);
}
/* Stupid syntax highlighting.
*
* No regex was used in the making of this highlighting.
* It should only work for simple cases. This is good, as
* that's all we should have in the demos.
*/
/* This code should not be used elsewhere, except perhaps as an example of how
* to iterate through a text buffer.
*/
enum {
STATE_NORMAL,
STATE_IN_COMMENT
};
static const char *tokens[] =
{
"/*",
"\"",
NULL
};
static const char *types[] =
{
"static",
"const ",
"void",
"gint",
" int ",
" char ",
"gchar ",
"gfloat",
"float",
"double",
"gint8",
"gint16",
"gint32",
"guint",
"guint8",
"guint16",
"guint32",
"guchar",
"glong",
"gboolean" ,
"gshort",
"gushort",
"gulong",
"gdouble",
"gldouble",
"gpointer",
"NULL",
"GList",
"GSList",
"FALSE",
"TRUE",
"FILE ",
"GtkColorSelection ",
"GtkWidget ",
"GtkButton ",
"GdkColor ",
"GdkRectangle ",
"GdkEventExpose ",
"GdkGC ",
"GdkPixbufLoader ",
"GdkPixbuf ",
"GError",
"size_t",
"GtkAboutDialog ",
"GtkAction ",
"GtkActionEntry ",
"GtkRadioActionEntry ",
"GtkIconFactory ",
"GtkTextBuffer ",
"GtkStatusbar ",
"GtkTextIter ",
"GtkTextMark ",
"GdkEventWindowState ",
"GtkActionGroup ",
"GtkUIManager ",
"GtkRadioAction ",
"GtkActionClass ",
"GtkToggleActionEntry ",
"GtkAssistant ",
"GtkBuilder ",
"GtkSizeGroup ",
"GtkTreeModel ",
"GtkTreeSelection ",
"GdkDisplay ",
"GdkScreen ",
"GdkSurface ",
"GdkEventButton ",
"GdkCursor ",
"GtkTreeIter ",
"GtkTreeViewColumn ",
"GdkDisplayManager ",
"GdkClipboard ",
"GtkIconSize ",
"GtkImage ",
"GdkDragContext ",
"GtkSelectionData ",
"GtkDialog ",
"GtkMenuItem ",
"GtkListStore ",
"GtkCellLayout ",
"GtkCellRenderer ",
"GtkTreePath ",
"GtkTreeStore ",
"GtkEntry ",
"GtkEditable ",
"GtkEditableInterface ",
"GdkPixmap ",
"GdkEventConfigure ",
"GdkEventMotion ",
"GdkModifierType ",
"GtkEntryCompletion ",
"GtkToolItem ",
"GDir ",
"GtkIconView ",
"GtkCellRendererText ",
"GtkContainer ",
"GtkPaned ",
"GtkPrintOperation ",
"GtkPrintContext ",
"cairo_t ",
"PangoLayout "
"PangoFontDescription ",
"PangoRenderer ",
"PangoMatrix ",
"PangoContext ",
"PangoLayout ",
"GtkToggleButton ",
"GString ",
"GtkIconSize ",
"GtkTreeView ",
"GtkTextTag ",
"GdkEvent ",
"GdkEventKey ",
"GtkTextView ",
"GdkBitmap ",
"GtkTextChildAnchor ",
"GArray ",
"GtkCellEditable ",
"GtkCellRendererToggle ",
NULL
};
static const char *control[] =
{
" if ",
" while ",
" else",
" do ",
" for ",
"?",
":",
"return ",
"goto ",
NULL
};
void
parse_chars (gchar *text,
gchar **end_ptr,
gint *state,
const char **tag,
gboolean start)
{
gint i;
gchar *next_token;
/* Handle comments first */
if (*state == STATE_IN_COMMENT)
{
*end_ptr = strstr (text, "*/");
if (*end_ptr)
{
*end_ptr += 2;
*state = STATE_NORMAL;
*tag = "comment";
}
return;
}
*tag = NULL;
*end_ptr = NULL;
/* check for comment */
if (!strncmp (text, "/*", 2))
{
*end_ptr = strstr (text, "*/");
if (*end_ptr)
*end_ptr += 2;
else
*state = STATE_IN_COMMENT;
*tag = "comment";
return;
}
/* check for preprocessor defines */
if (*text == '#' && start)
{
*end_ptr = NULL;
*tag = "preprocessor";
return;
}
/* functions */
if (start && * text != '\t' && *text != ' ' && *text != '{' && *text != '}')
{
if (strstr (text, "("))
{
*end_ptr = strstr (text, "(");
*tag = "function";
return;
}
}
/* check for types */
for (i = 0; types[i] != NULL; i++)
if (!strncmp (text, types[i], strlen (types[i])) ||
(start && types[i][0] == ' ' && !strncmp (text, types[i] + 1, strlen (types[i]) - 1)))
{
*end_ptr = text + strlen (types[i]);
*tag = "type";
return;
}
/* check for control */
for (i = 0; control[i] != NULL; i++)
if (!strncmp (text, control[i], strlen (control[i])))
{
*end_ptr = text + strlen (control[i]);
*tag = "control";
return;
}
/* check for string */
if (text[0] == '"')
{
gint maybe_escape = FALSE;
*end_ptr = text + 1;
*tag = "string";
while (**end_ptr != '\000')
{
if (**end_ptr == '\"' && !maybe_escape)
{
*end_ptr += 1;
return;
}
if (**end_ptr == '\\')
maybe_escape = TRUE;
else
maybe_escape = FALSE;
*end_ptr += 1;
}
return;
}
/* not at the start of a tag. Find the next one. */
for (i = 0; tokens[i] != NULL; i++)
{
next_token = strstr (text, tokens[i]);
if (next_token)
{
if (*end_ptr)
*end_ptr = (*end_ptr<next_token)?*end_ptr:next_token;
else
*end_ptr = next_token;
}
}
for (i = 0; types[i] != NULL; i++)
{
next_token = strstr (text, types[i]);
if (next_token)
{
if (*end_ptr)
*end_ptr = (*end_ptr<next_token)?*end_ptr:next_token;
else
*end_ptr = next_token;
}
}
for (i = 0; control[i] != NULL; i++)
{
next_token = strstr (text, control[i]);
if (next_token)
{
if (*end_ptr)
*end_ptr = (*end_ptr<next_token)?*end_ptr:next_token;
else
*end_ptr = next_token;
}
}
}
/* While not as cool as c-mode, this will do as a quick attempt at highlighting */
void
fontify (GtkTextBuffer *source_buffer)
{
GtkTextIter start_iter, next_iter, tmp_iter;
gint state;
gchar *text;
gchar *start_ptr, *end_ptr;
const char *tag;
gtk_text_buffer_create_tag (source_buffer, "source",
"font", "monospace",
NULL);
gtk_text_buffer_create_tag (source_buffer, "comment",
"foreground", "DodgerBlue",
NULL);
gtk_text_buffer_create_tag (source_buffer, "type",
"foreground", "ForestGreen",
NULL);
gtk_text_buffer_create_tag (source_buffer, "string",
"foreground", "RosyBrown",
"weight", PANGO_WEIGHT_BOLD,
NULL);
gtk_text_buffer_create_tag (source_buffer, "control",
"foreground", "purple",
NULL);
gtk_text_buffer_create_tag (source_buffer, "preprocessor",
"style", PANGO_STYLE_OBLIQUE,
"foreground", "burlywood4",
NULL);
gtk_text_buffer_create_tag (source_buffer, "function",
"weight", PANGO_WEIGHT_BOLD,
"foreground", "DarkGoldenrod4",
NULL);
gtk_text_buffer_get_bounds (source_buffer, &start_iter, &tmp_iter);
gtk_text_buffer_apply_tag_by_name (source_buffer, "source", &start_iter, &tmp_iter);
state = STATE_NORMAL;
gtk_text_buffer_get_iter_at_offset (source_buffer, &start_iter, 0);
next_iter = start_iter;
while (gtk_text_iter_forward_line (&next_iter))
{
gboolean start = TRUE;
start_ptr = text = gtk_text_iter_get_text (&start_iter, &next_iter);
do
{
parse_chars (start_ptr, &end_ptr, &state, &tag, start);
start = FALSE;
if (end_ptr)
{
tmp_iter = start_iter;
gtk_text_iter_forward_chars (&tmp_iter, end_ptr - start_ptr);
}
else
{
tmp_iter = next_iter;
}
if (tag)
gtk_text_buffer_apply_tag_by_name (source_buffer, tag, &start_iter, &tmp_iter);
start_iter = tmp_iter;
start_ptr = end_ptr;
}
while (end_ptr);
g_free (text);
start_iter = next_iter;
}
}
static GtkWidget *
display_image (const char *resource)
{
GtkWidget *sw, *image;
image = gtk_image_new_from_resource (resource);
gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
gtk_widget_set_valign (image, GTK_ALIGN_CENTER);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_container_add (GTK_CONTAINER (sw), image);
return sw;
}
static GtkWidget *
display_text (const char *resource)
{
GtkTextBuffer *buffer;
GtkWidget *textview, *sw;
GBytes *bytes;
bytes = g_resources_lookup_data (resource, 0, NULL);
g_assert (bytes);
g_assert (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL));
textview = gtk_text_view_new ();
g_object_set (textview,
"left-margin", 20,
"right-margin", 20,
"top-margin", 20,
"bottom-margin", 20,
NULL);
gtk_text_view_set_editable (GTK_TEXT_VIEW (textview), FALSE);
gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (textview), FALSE);
/* Make it a bit nicer for text. */
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (textview), GTK_WRAP_WORD);
gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (textview), 2);
gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (textview), 2);
buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
if (g_str_has_suffix (resource, ".c"))
fontify (buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
g_bytes_unref (bytes);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (sw), textview);
return sw;
}
static GtkWidget *
display_video (const char *resource)
{
GtkWidget *video;
video = gtk_video_new_for_resource (resource);
gtk_video_set_loop (GTK_VIDEO (video), TRUE);
return video;
}
static GtkWidget *
display_nothing (const char *resource)
{
GtkWidget *widget;
char *str;
str = g_strdup_printf ("The lazy GTK developers forgot to add a way to display the resource '%s'", resource);
widget = gtk_label_new (str);
gtk_label_set_wrap (GTK_LABEL (widget), TRUE);
g_free (str);
return widget;
}
static struct {
const char *extension;
GtkWidget * (* display_func) (const char *resource);
} display_funcs[] = {
{ ".gif", display_image },
{ ".jpg", display_image },
{ ".png", display_image },
{ ".c", display_text },
{ ".css", display_text },
{ ".glsl", display_text },
{ ".h", display_text },
{ ".txt", display_text },
{ ".ui", display_text },
{ ".webm", display_video }
};
static void
add_data_tab (const gchar *demoname)
{
gchar *resource_dir, *resource_name;
gchar **resources;
GtkWidget *widget, *label;
guint i, j;
resource_dir = g_strconcat ("/", demoname, NULL);
resources = g_resources_enumerate_children (resource_dir, 0, NULL);
if (resources == NULL)
{
g_free (resource_dir);
return;
}
for (i = 0; resources[i]; i++)
{
resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);
for (j = 0; j < G_N_ELEMENTS(display_funcs); j++)
{
if (g_str_has_suffix (resource_name, display_funcs[j].extension))
break;
}
if (j < G_N_ELEMENTS(display_funcs))
widget = display_funcs[j].display_func (resource_name);
else
widget = display_nothing (resource_name);
label = gtk_label_new (resources[i]);
gtk_widget_show (label);
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
g_object_set (gtk_notebook_get_page (GTK_NOTEBOOK (notebook), widget),
"tab-expand", FALSE,
NULL);
g_free (resource_name);
}
g_strfreev (resources);
g_free (resource_dir);
}
static void
remove_data_tabs (void)
{
gint i;
for (i = gtk_notebook_get_n_pages (GTK_NOTEBOOK (notebook)) - 1; i > 1; i--)
gtk_notebook_remove_page (GTK_NOTEBOOK (notebook), i);
}
void
load_file (const gchar *demoname,
const gchar *filename)
{
GtkTextBuffer *info_buffer, *source_buffer;
GtkTextIter start, end;
char *resource_filename;
GError *err = NULL;
int state = 0;
gboolean in_para = 0;
gchar **lines;
GBytes *bytes;
gint i;
if (!g_strcmp0 (current_file, filename))
return;
remove_data_tabs ();
add_data_tab (demoname);
g_free (current_file);
current_file = g_strdup (filename);
info_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_create_tag (info_buffer, "title",
"font", "Sans 18",
"pixels-below-lines", 10,
NULL);
source_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_begin_irreversible_action (info_buffer);
gtk_text_buffer_begin_irreversible_action (source_buffer);
resource_filename = g_strconcat ("/sources/", filename, NULL);
bytes = g_resources_lookup_data (resource_filename, 0, &err);
g_free (resource_filename);
if (bytes == NULL)
{
g_warning ("Cannot open source for %s: %s", filename, err->message);
g_error_free (err);
return;
}
lines = g_strsplit (g_bytes_get_data (bytes, NULL), "\n", -1);
g_bytes_unref (bytes);
gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
for (i = 0; lines[i] != NULL; i++)
{
gchar *p;
gchar *q;
gchar *r;
/* Make sure \r is stripped at the end for the poor windows people */
lines[i] = g_strchomp (lines[i]);
p = lines[i];
switch (state)
{
case 0:
/* Reading title */
while (*p == '/' || *p == '*' || g_ascii_isspace (*p))
p++;
r = p;
while (*r != '\0')
{
while (*r != '/' && *r != ':' && *r != '\0')
r++;
if (*r == '/')
{
r++;
p = r;
}
if (r[0] == ':' && r[1] == ':')
*r = '\0';
}
q = p + strlen (p);
while (q > p && g_ascii_isspace (*(q - 1)))
q--;
if (q > p)
{
int len_chars = g_utf8_pointer_to_offset (p, q);
end = start;
g_assert (strlen (p) >= q - p);
gtk_text_buffer_insert (info_buffer, &end, p, q - p);
start = end;
gtk_text_iter_backward_chars (&start, len_chars);
gtk_text_buffer_apply_tag_by_name (info_buffer, "title", &start, &end);
start = end;
while (*p && *p != '\n') p++;
state++;
}
break;
case 1:
/* Reading body of info section */
while (g_ascii_isspace (*p))
p++;
if (*p == '*' && *(p + 1) == '/')
{
gtk_text_buffer_get_iter_at_offset (source_buffer, &start, 0);
state++;
}
else
{
int len;
while (*p == '*' || g_ascii_isspace (*p))
p++;
len = strlen (p);
while (g_ascii_isspace (*(p + len - 1)))
len--;
if (len > 0)
{
if (in_para)
gtk_text_buffer_insert (info_buffer, &start, " ", 1);
g_assert (strlen (p) >= len);
gtk_text_buffer_insert (info_buffer, &start, p, len);
in_para = 1;
}
else
{
gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
in_para = 0;
}
}
break;
case 2:
/* Skipping blank lines */
while (g_ascii_isspace (*p))
p++;
if (!*p)
break;
p = lines[i];
state++;
G_GNUC_FALLTHROUGH;
case 3:
/* Reading program body */
gtk_text_buffer_insert (source_buffer, &start, p, -1);
if (lines[i+1] != NULL)
gtk_text_buffer_insert (source_buffer, &start, "\n", 1);
break;
default:
g_assert_not_reached ();
}
}
g_strfreev (lines);
fontify (source_buffer);
gtk_text_buffer_end_irreversible_action (source_buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (source_view), source_buffer);
g_object_unref (source_buffer);
gtk_text_buffer_end_irreversible_action (info_buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (info_view), info_buffer);
g_object_unref (info_buffer);
}
static void
selection_cb (GtkTreeSelection *selection,
GtkTreeModel *model)
{
GtkTreeIter iter;
char *name;
char *filename;
char *title;
if (! gtk_tree_selection_get_selected (selection, NULL, &iter))
return;
gtk_tree_model_get (model, &iter,
NAME_COLUMN, &name,
TITLE_COLUMN, &title,
FILENAME_COLUMN, &filename,
-1);
if (filename)
load_file (name, filename);
gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar), title);
g_free (name);
g_free (title);
g_free (filename);
}
static void
populate_model (GtkTreeModel *model)
{
Demo *d = gtk_demos;
/* this code only supports 1 level of children. If we
* want more we probably have to use a recursing function.
*/
while (d->title)
{
Demo *children = d->children;
GtkTreeIter iter;
gtk_tree_store_append (GTK_TREE_STORE (model), &iter, NULL);
gtk_tree_store_set (GTK_TREE_STORE (model),
&iter,
NAME_COLUMN, d->name,
TITLE_COLUMN, d->title,
FILENAME_COLUMN, d->filename,
FUNC_COLUMN, d->func,
STYLE_COLUMN, PANGO_STYLE_NORMAL,
-1);
d++;
if (!children)
continue;
while (children->title)
{
GtkTreeIter child_iter;
gtk_tree_store_append (GTK_TREE_STORE (model), &child_iter, &iter);
gtk_tree_store_set (GTK_TREE_STORE (model),
&child_iter,
NAME_COLUMN, children->name,
TITLE_COLUMN, children->title,
FILENAME_COLUMN, children->filename,
FUNC_COLUMN, children->func,
STYLE_COLUMN, PANGO_STYLE_NORMAL,
-1);
children++;
}
}
}
static void
startup (GApplication *app)
{
GtkBuilder *builder;
GMenuModel *appmenu;
const char *ids[] = { "appmenu", NULL };
builder = gtk_builder_new ();
gtk_builder_add_objects_from_resource (builder, "/ui/appmenu.ui", ids, NULL);
appmenu = (GMenuModel *)gtk_builder_get_object (builder, "appmenu");
gtk_application_set_app_menu (GTK_APPLICATION (app), appmenu);
g_object_unref (builder);
}
static void
row_activated_cb (GtkWidget *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column)
{
GtkTreeIter iter;
GtkWidget *window;
GtkTreeModel *model;
window = GTK_WIDGET (gtk_widget_get_root (tree_view));
model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view));
gtk_tree_model_get_iter (model, &iter, path);
run_example_for_row (window, model, &iter);
}
static void
activate (GApplication *app)
{
GtkBuilder *builder;
GtkWindow *window;
GtkWidget *widget;
GtkTreeModel *model;
GtkTreeIter iter;
static GActionEntry win_entries[] = {
{ "run", activate_run, NULL, NULL, NULL }
};
builder = gtk_builder_new_from_resource ("/ui/main.ui");
window = (GtkWindow *)gtk_builder_get_object (builder, "window");
gtk_application_add_window (GTK_APPLICATION (app), window);
g_action_map_add_action_entries (G_ACTION_MAP (window),
win_entries, G_N_ELEMENTS (win_entries),
window);
notebook = (GtkWidget *)gtk_builder_get_object (builder, "notebook");
info_view = (GtkWidget *)gtk_builder_get_object (builder, "info-textview");
source_view = (GtkWidget *)gtk_builder_get_object (builder, "source-textview");
headerbar = (GtkWidget *)gtk_builder_get_object (builder, "headerbar");
treeview = (GtkWidget *)gtk_builder_get_object (builder, "treeview");
model = gtk_tree_view_get_model (GTK_TREE_VIEW (treeview));
load_file (gtk_demos[0].name, gtk_demos[0].filename);
populate_model (model);
g_signal_connect (treeview, "row-activated", G_CALLBACK (row_activated_cb), model);
widget = (GtkWidget *)gtk_builder_get_object (builder, "treeview-selection");
g_signal_connect (widget, "changed", G_CALLBACK (selection_cb), model);
gtk_tree_model_get_iter_first (gtk_tree_view_get_model (GTK_TREE_VIEW (treeview)), &iter);
gtk_tree_selection_select_iter (GTK_TREE_SELECTION (widget), &iter);
gtk_tree_view_collapse_all (GTK_TREE_VIEW (treeview));
gtk_widget_show (GTK_WIDGET (window));
g_object_unref (builder);
}
static gboolean
auto_quit (gpointer data)
{
g_application_quit (G_APPLICATION (data));
return G_SOURCE_REMOVE;
}
static void
list_demos (void)
{
Demo *d, *c;
d = gtk_demos;
while (d->title)
{
c = d->children;
if (d->name)
g_print ("%s\n", d->name);
d++;
while (c && c->title)
{
if (c->name)
g_print ("%s\n", c->name);
c++;
}
}
}
static gint
command_line (GApplication *app,
GApplicationCommandLine *cmdline)
{
GVariantDict *options;
const gchar *name = NULL;
gboolean autoquit = FALSE;
gboolean list = FALSE;
Demo *d, *c;
GDoDemoFunc func = 0;
GtkWidget *window, *demo;
activate (app);
options = g_application_command_line_get_options_dict (cmdline);
g_variant_dict_lookup (options, "run", "&s", &name);
g_variant_dict_lookup (options, "autoquit", "b", &autoquit);
g_variant_dict_lookup (options, "list", "b", &list);
if (list)
{
list_demos ();
g_application_quit (app);
return 0;
}
if (name == NULL)
goto out;
window = gtk_application_get_windows (GTK_APPLICATION (app))->data;
d = gtk_demos;
while (d->title)
{
c = d->children;
if (g_strcmp0 (d->name, name) == 0)
{
func = d->func;
goto out;
}
d++;
while (c && c->title)
{
if (g_strcmp0 (c->name, name) == 0)
{
func = c->func;
goto out;
}
c++;
}
}
out:
if (func)
{
demo = (func) (window);
gtk_window_set_transient_for (GTK_WINDOW (demo), GTK_WINDOW (window));
gtk_window_set_modal (GTK_WINDOW (demo), TRUE);
}
if (autoquit)
g_timeout_add_seconds (1, auto_quit, app);
return 0;
}
static void
print_version (void)
{
g_print ("gtk3-demo %d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
}
static int
local_options (GApplication *app,
GVariantDict *options,
gpointer data)
{
gboolean version = FALSE;
g_variant_dict_lookup (options, "version", "b", &version);
if (version)
{
print_version ();
return 0;
}
return -1;
}
int
main (int argc, char **argv)
{
GtkApplication *app;
static GActionEntry app_entries[] = {
{ "about", activate_about, NULL, NULL, NULL },
{ "quit", activate_quit, NULL, NULL, NULL },
{ "inspector", activate_inspector, NULL, NULL, NULL },
};
/* Most code in gtk-demo is intended to be exemplary, but not
* these few lines, which are just a hack so gtk-demo will work
* in the GTK tree without installing it.
*/
if (g_file_test ("../../modules/input/immodules.cache", G_FILE_TEST_EXISTS))
{
g_setenv ("GTK_IM_MODULE_FILE", "../../modules/input/immodules.cache", TRUE);
}
/* -- End of hack -- */
app = gtk_application_new ("org.gtk.Demo4", G_APPLICATION_NON_UNIQUE|G_APPLICATION_HANDLES_COMMAND_LINE);
g_action_map_add_action_entries (G_ACTION_MAP (app),
app_entries, G_N_ELEMENTS (app_entries),
app);
g_application_add_main_option (G_APPLICATION (app), "version", 0, 0, G_OPTION_ARG_NONE, "Show program version", NULL);
g_application_add_main_option (G_APPLICATION (app), "run", 0, 0, G_OPTION_ARG_STRING, "Run an example", "EXAMPLE");
g_application_add_main_option (G_APPLICATION (app), "list", 0, 0, G_OPTION_ARG_NONE, "List examples", NULL);
g_application_add_main_option (G_APPLICATION (app), "autoquit", 0, 0, G_OPTION_ARG_NONE, "Quit after a delay", NULL);
g_signal_connect (app, "startup", G_CALLBACK (startup), NULL);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
g_signal_connect (app, "command-line", G_CALLBACK (command_line), NULL);
g_signal_connect (app, "handle-local-options", G_CALLBACK (local_options), NULL);
g_application_run (G_APPLICATION (app), argc, argv);
return 0;
}