+++ /dev/null
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-
-#include <gtk/gtk.h>
-
-#include <demos.h>
-
-static GtkTextBuffer *info_buffer;
-static GtkTextBuffer *source_buffer;
-
-static gchar *current_file = NULL;
-
-enum {
- TITLE_COLUMN,
- FILENAME_COLUMN,
- FUNC_COLUMN,
- ITALIC_COLUMN,
- NUM_COLUMNS
-};
-
-gboolean
-read_line (FILE *stream, GString *str)
-{
- int n_read = 0;
-
- flockfile (stream);
-
- g_string_truncate (str, 0);
-
- while (1)
- {
- int c;
-
- c = getc_unlocked (stream);
-
- if (c == EOF)
- goto done;
- else
- n_read++;
-
- switch (c)
- {
- case '\r':
- case '\n':
- {
- int next_c = getc_unlocked (stream);
-
- if (!(next_c == EOF ||
- (c == '\r' && next_c == '\n') ||
- (c == '\n' && next_c == '\r')))
- ungetc (next_c, stream);
-
- goto done;
- }
- default:
- g_string_append_c (str, c);
- }
- }
-
- done:
-
- funlockfile (stream);
-
- return n_read > 0;
-}
-
-void
-load_file (const gchar *filename)
-{
- FILE *file;
- GtkTextIter start, end;
- GString *buffer = g_string_new (NULL);
- int state = 0;
- gboolean in_para = 0;
-
- if (current_file && !strcmp (current_file, filename))
- return;
-
- g_free (current_file);
- current_file = g_strdup (filename);
-
- gtk_text_buffer_get_bounds (info_buffer, &start, &end);
- gtk_text_buffer_delete (info_buffer, &start, &end);
-
- gtk_text_buffer_get_bounds (source_buffer, &start, &end);
- gtk_text_buffer_delete (source_buffer, &start, &end);
-
- file = fopen (filename, "r");
- if (!file)
- {
- g_warning ("Cannot open %s: %s\n", filename, g_strerror (errno));
- return;
- }
-
- gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
- while (read_line (file, buffer))
- {
- gchar *p = buffer->str;
- gchar *q;
-
- switch (state)
- {
- case 0:
- /* Reading title */
- while (*p == '/' || *p == '*' || isspace (*p))
- p++;
- q = p + strlen (p);
- while (q > p && 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;
-
- state++;
- }
- break;
-
- case 1:
- /* Reading body of info section */
- while (isspace (*p))
- p++;
- if (*p == '*' && *(p + 1) == '/')
- {
- gtk_text_buffer_get_iter_at_offset (source_buffer, &start, 0);
- state++;
- }
- else
- {
- int len;
-
- while (*p == '*' || isspace (*p))
- p++;
-
- len = strlen (p);
- while (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 (isspace (*p))
- p++;
- if (*p)
- {
- p = buffer->str;
- state++;
- /* Fall through */
- }
- else
- break;
-
- case 3:
- /* Reading program body */
- gtk_text_buffer_insert (source_buffer, &start, p, -1);
- gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
- break;
- }
- }
-
- gtk_text_buffer_get_bounds (source_buffer, &start, &end);
- gtk_text_buffer_apply_tag_by_name (info_buffer, "source", &start, &end);
- fclose (file);
-}
-
-gboolean
-button_press_event_cb (GtkTreeView *tree_view,
- GdkEventButton *event,
- GtkTreeModel *model)
-{
- if (event->type == GDK_2BUTTON_PRESS)
- {
- GtkTreePath *path = NULL;
-
- gtk_tree_view_get_path_at_pos (tree_view,
- event->window,
- event->x,
- event->y,
- &path,
- NULL);
-
- if (path)
- {
- GtkTreeIter iter;
- gboolean italic;
- GVoidFunc func;
-
- gtk_tree_model_get_iter (model, &iter, path);
- gtk_tree_store_get (GTK_TREE_STORE (model),
- &iter,
- FUNC_COLUMN, &func,
- ITALIC_COLUMN, &italic,
- -1);
- (func) ();
- gtk_tree_store_set (GTK_TREE_STORE (model),
- &iter,
- ITALIC_COLUMN, !italic,
- -1);
- gtk_tree_path_free (path);
- }
-
- g_signal_stop_emission_by_name (tree_view, "button-press-event");
- return TRUE;
- }
-
- return FALSE;
-}
-
-static void
-selection_cb (GtkTreeSelection *selection,
- GtkTreeModel *model)
-{
- GtkTreeIter iter;
- GValue value = {0, };
-
- if (! gtk_tree_selection_get_selected (selection, NULL, &iter))
- return;
-
- gtk_tree_model_get_value (model, &iter,
- FILENAME_COLUMN,
- &value);
- load_file (g_value_get_string (&value));
- g_value_unset (&value);
-}
-
-static GtkWidget *
-create_text (GtkTextBuffer **buffer,
- gboolean is_source)
-{
- GtkWidget *scrolled_window;
- GtkWidget *text_view;
- PangoFontDescription *font_desc;
-
- scrolled_window = gtk_scrolled_window_new (NULL, NULL);
- gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
- GTK_POLICY_AUTOMATIC,
- GTK_POLICY_AUTOMATIC);
- gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
- GTK_SHADOW_IN);
-
- text_view = gtk_text_view_new ();
- gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
-
- *buffer = gtk_text_buffer_new (NULL);
- gtk_text_view_set_buffer (GTK_TEXT_VIEW (text_view), *buffer);
- gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
- gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
-
- if (is_source)
- {
- font_desc = pango_font_description_from_string ("Courier 10");
- gtk_widget_modify_font (text_view, font_desc);
- pango_font_description_free (font_desc);
- }
-
- gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), !is_source);
-
- return scrolled_window;
-}
-
-/* Technically a list, but if we do go to 80 demos, we may want to move to a tree */
-static GtkWidget *
-create_tree (void)
-{
- GtkTreeSelection *selection;
- GtkCellRenderer *cell;
- GtkWidget *tree_view;
- GtkTreeViewColumn *column;
- GtkTreeStore *model;
- GtkTreeIter iter;
- gint i;
-
- model = gtk_tree_store_new_with_types (NUM_COLUMNS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_BOOLEAN);
- tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (model));
- selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
-
- gtk_tree_selection_set_type (GTK_TREE_SELECTION (selection),
- GTK_TREE_SELECTION_SINGLE);
- gtk_widget_set_usize (tree_view, 200, -1);
-
- for (i=0; i < G_N_ELEMENTS (testgtk_demos); i++)
- {
- gtk_tree_store_append (GTK_TREE_STORE (model), &iter, NULL);
-
- gtk_tree_store_set (GTK_TREE_STORE (model),
- &iter,
- TITLE_COLUMN, testgtk_demos[i].title,
- FILENAME_COLUMN, testgtk_demos[i].filename,
- FUNC_COLUMN, testgtk_demos[i].func,
- ITALIC_COLUMN, FALSE,
- -1);
- }
-
- cell = gtk_cell_renderer_text_new ();
- column = gtk_tree_view_column_new_with_attributes ("Widget",
- cell,
- "text", TITLE_COLUMN,
- "italic", ITALIC_COLUMN,
- NULL);
- gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view),
- GTK_TREE_VIEW_COLUMN (column));
-
- g_signal_connect (selection, "selection-changed", selection_cb, model);
- g_signal_connect (tree_view, "button-press-event", G_CALLBACK (button_press_event_cb), model);
-
- return tree_view;
-}
-
-int
-main (int argc, char **argv)
-{
- GtkWidget *window;
- GtkWidget *notebook;
- GtkWidget *hbox;
- GtkWidget *tree;
- GtkTextTag *tag;
-
- gtk_init (&argc, &argv);
-
- window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
- g_signal_connect (window, "destroy",
- G_CALLBACK (gtk_main_quit), NULL);
-
- hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 0);
- gtk_container_add (GTK_CONTAINER (window), hbox);
-
- tree = create_tree ();
- gtk_box_pack_start (GTK_BOX (hbox), tree, FALSE, FALSE, 0);
-
- notebook = gtk_notebook_new ();
- gtk_box_pack_start (GTK_BOX (hbox), notebook, TRUE, TRUE, 0);
-
- gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
- create_text (&info_buffer, FALSE),
- gtk_label_new ("Info"));
-
-
- gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
- create_text (&source_buffer, TRUE),
- gtk_label_new ("Source"));
-
- tag = gtk_text_buffer_create_tag (info_buffer, "title");
- g_object_set (tag,
- "font", "Sans 18",
- NULL);
-
- tag = gtk_text_buffer_create_tag (info_buffer, "source");
- g_object_set (tag,
- "font", "Courier 10",
- "pixels_above_lines", 0,
- "pixels_below_lines", 0,
- NULL);
-
- gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
- gtk_widget_show_all (window);
-
-
- load_file (testgtk_demos[0].filename);
-
- gtk_main ();
-
- return 0;
-}
projects / gtk4.git / commitdiff