From 37e8ad6c00349fd62f09c8cfe3e22acf545db2ac Mon Sep 17 00:00:00 2001 From: Alessio Treglia Date: Thu, 13 May 2010 20:16:51 +0200 Subject: Imported Upstream version 2.31.1 --- src/book-view.c | 224 +++++++++++++++++++++++++++++++++++--------------------- 1 file changed, 139 insertions(+), 85 deletions(-) (limited to 'src/book-view.c') diff --git a/src/book-view.c b/src/book-view.c index e45e22c..377a156 100644 --- a/src/book-view.c +++ b/src/book-view.c @@ -17,9 +17,15 @@ // FIXME: When scrolling, copy existing render sideways? // FIXME: Only render pages that change and only the part that changed +enum { + PROP_0, + PROP_BOOK +}; + enum { PAGE_SELECTED, SHOW_PAGE, + SHOW_MENU, LAST_SIGNAL }; static guint signals[LAST_SIGNAL] = { 0, }; @@ -37,25 +43,22 @@ struct BookViewPrivate PageView *selected_page; /* Widget being rendered to */ - GtkWidget *widget; + GtkWidget *drawing_area; - /* Horizontal adjustment */ + /* Horizontal scrollbar */ + GtkWidget *scroll; GtkAdjustment *adjustment; - GtkWidget *box, *scroll; - - GtkWidget *page_menu; - gint cursor; }; -G_DEFINE_TYPE (BookView, book_view, G_TYPE_OBJECT); +G_DEFINE_TYPE (BookView, book_view, GTK_TYPE_VBOX); BookView * -book_view_new () +book_view_new (Book *book) { - return g_object_new (BOOK_VIEW_TYPE, NULL); + return g_object_new (BOOK_VIEW_TYPE, "book", book, NULL); } @@ -148,7 +151,7 @@ set_selected_page (BookView *view, PageView *page) return; /* Select new page if widget has focus */ - if (!gtk_widget_has_focus (view->priv->widget)) + if (!gtk_widget_has_focus (view->priv->drawing_area)) page_view_set_selected (view->priv->selected_page, FALSE); else page_view_set_selected (view->priv->selected_page, TRUE); @@ -173,17 +176,19 @@ static void show_page (BookView *view, PageView *page) { gint left_edge, right_edge; + GtkAllocation allocation; if (!page || !gtk_widget_get_visible (view->priv->scroll)) return; + gtk_widget_get_allocation(view->priv->drawing_area, &allocation); left_edge = page_view_get_x_offset (page); right_edge = page_view_get_x_offset (page) + page_view_get_width (page); if (left_edge - get_x_offset (view) < 0) set_x_offset(view, left_edge); - else if (right_edge - get_x_offset (view) > view->priv->widget->allocation.width) - set_x_offset(view, right_edge - view->priv->widget->allocation.width); + else if (right_edge - get_x_offset (view) > allocation.width) + set_x_offset(view, right_edge - allocation.width); } @@ -241,32 +246,6 @@ clear_cb (Book *book, BookView *view) } -void -book_view_set_book (BookView *view, Book *book) -{ - gint i, n_pages; - - g_return_if_fail (view != NULL); - g_return_if_fail (book != NULL); - - view->priv->book = g_object_ref (book); - - /* Load existing pages */ - n_pages = book_get_n_pages (view->priv->book); - for (i = 0; i < n_pages; i++) { - Page *page = book_get_page (book, i); - add_cb (book, page, view); - } - - book_view_select_page (view, book_get_page (book, 0)); - - /* Watch for new pages */ - g_signal_connect (book, "page-added", G_CALLBACK (add_cb), view); - g_signal_connect (book, "page-removed", G_CALLBACK (remove_cb), view); - g_signal_connect (book, "cleared", G_CALLBACK (clear_cb), view); -} - - Book * book_view_get_book (BookView *view) { @@ -370,36 +349,40 @@ layout (BookView *view) { gint width, height, book_width, book_height; gboolean right_aligned = TRUE; + GtkAllocation allocation, box_allocation; if (!view->priv->need_layout) return; - + view->priv->laying_out = TRUE; + gtk_widget_get_allocation(view->priv->drawing_area, &allocation); + gtk_widget_get_allocation(GTK_WIDGET(view), &box_allocation); + /* If scroll is right aligned then keep that after layout */ if (gtk_adjustment_get_value (view->priv->adjustment) < gtk_adjustment_get_upper (view->priv->adjustment) - gtk_adjustment_get_page_size (view->priv->adjustment)) right_aligned = FALSE; - + /* Try and fit without scrollbar */ - width = view->priv->widget->allocation.width; - height = view->priv->box->allocation.height; + width = allocation.width; + height = box_allocation.height - gtk_container_get_border_width (GTK_CONTAINER (view)) * 2; layout_into (view, width, height, &book_width, &book_height); /* Relayout with scrollbar */ - if (book_width > view->priv->widget->allocation.width) { + if (book_width > allocation.width) { gint max_offset; /* Re-layout leaving space for scrollbar */ - height = view->priv->widget->allocation.height; + height = allocation.height; layout_into (view, width, height, &book_width, &book_height); /* Set scrollbar limits */ gtk_adjustment_set_lower (view->priv->adjustment, 0); gtk_adjustment_set_upper (view->priv->adjustment, book_width); - gtk_adjustment_set_page_size (view->priv->adjustment, view->priv->widget->allocation.width); + gtk_adjustment_set_page_size (view->priv->adjustment, allocation.width); /* Keep right-aligned */ - max_offset = book_width - view->priv->widget->allocation.width; + max_offset = book_width - allocation.width; if (right_aligned || get_x_offset (view) > max_offset) set_x_offset(view, max_offset); @@ -407,7 +390,7 @@ layout (BookView *view) } else { gint offset; gtk_widget_hide (view->priv->scroll); - offset = (book_width - view->priv->widget->allocation.width) / 2; + offset = (book_width - allocation.width) / 2; gtk_adjustment_set_lower (view->priv->adjustment, offset); gtk_adjustment_set_upper (view->priv->adjustment, offset); gtk_adjustment_set_page_size (view->priv->adjustment, 0); @@ -435,7 +418,7 @@ expose_cb (GtkWidget *widget, GdkEventExpose *event, BookView *view) layout (view); - context = gdk_cairo_create (widget->window); + context = gdk_cairo_create (gtk_widget_get_window(widget)); /* Render each page */ for (i = 0; i < n_pages; i++) { @@ -455,8 +438,8 @@ expose_cb (GtkWidget *widget, GdkEventExpose *event, BookView *view) cairo_restore (context); if (page_view_get_selected (page)) - gtk_paint_focus (gtk_widget_get_style (view->priv->widget), - gtk_widget_get_window (view->priv->widget), + gtk_paint_focus (gtk_widget_get_style (view->priv->drawing_area), + gtk_widget_get_window (view->priv->drawing_area), GTK_STATE_SELECTED, &event->area, NULL, @@ -507,7 +490,7 @@ button_cb (GtkWidget *widget, GdkEventButton *event, BookView *view) layout (view); - gtk_widget_grab_focus (view->priv->widget); + gtk_widget_grab_focus (view->priv->drawing_area); if (event->type == GDK_BUTTON_PRESS) select_page (view, get_page_at (view, event->x + get_x_offset (view), event->y, &x, &y)); @@ -526,10 +509,8 @@ button_cb (GtkWidget *widget, GdkEventButton *event, BookView *view) } /* Show pop-up menu on right click */ - if (event->button == 3) { - gtk_menu_popup (GTK_MENU (view->priv->page_menu), NULL, NULL, NULL, NULL, - event->button, event->time); - } + if (event->button == 3) + g_signal_emit (view, signals[SHOW_MENU], 0); return FALSE; } @@ -545,7 +526,7 @@ set_cursor (BookView *view, gint cursor) view->priv->cursor = cursor; c = gdk_cursor_new (cursor); - gdk_window_set_cursor (gtk_widget_get_window (view->priv->widget), c); + gdk_window_set_cursor (gtk_widget_get_window (view->priv->drawing_area), c); gdk_cursor_destroy (c); } @@ -617,35 +598,11 @@ scroll_cb (GtkAdjustment *adjustment, BookView *view) } -void -book_view_set_widgets (BookView *view, GtkWidget *box, GtkWidget *area, GtkWidget *scroll, GtkWidget *page_menu) -{ - g_return_if_fail (view != NULL); - g_return_if_fail (view->priv->widget == NULL); - - view->priv->widget = area; - view->priv->box = box; - view->priv->scroll = scroll; - view->priv->adjustment = gtk_range_get_adjustment (GTK_RANGE (scroll)); - view->priv->page_menu = page_menu; - - g_signal_connect (area, "configure-event", G_CALLBACK (configure_cb), view); - g_signal_connect (area, "expose-event", G_CALLBACK (expose_cb), view); - g_signal_connect (area, "motion-notify-event", G_CALLBACK (motion_cb), view); - g_signal_connect (area, "key-press-event", G_CALLBACK (key_cb), view); - g_signal_connect (area, "button-press-event", G_CALLBACK (button_cb), view); - g_signal_connect (area, "button-release-event", G_CALLBACK (button_cb), view); - g_signal_connect_after (area, "focus-in-event", G_CALLBACK (focus_cb), view); - g_signal_connect_after (area, "focus-out-event", G_CALLBACK (focus_cb), view); - g_signal_connect (view->priv->adjustment, "value-changed", G_CALLBACK (scroll_cb), view); -} - - void book_view_redraw (BookView *view) { g_return_if_fail (view != NULL); - gtk_widget_queue_draw (view->priv->widget); + gtk_widget_queue_draw (view->priv->drawing_area); } @@ -692,6 +649,63 @@ book_view_get_selected (BookView *view) } +static void +book_view_set_property(GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + BookView *self; + gint i, n_pages; + + self = BOOK_VIEW (object); + + switch (prop_id) { + case PROP_BOOK: + self->priv->book = g_object_ref (g_value_get_object (value)); + + /* Load existing pages */ + n_pages = book_get_n_pages (self->priv->book); + for (i = 0; i < n_pages; i++) { + Page *page = book_get_page (self->priv->book, i); + add_cb (self->priv->book, page, self); + } + + book_view_select_page (self, book_get_page (self->priv->book, 0)); + + /* Watch for new pages */ + g_signal_connect (self->priv->book, "page-added", G_CALLBACK (add_cb), self); + g_signal_connect (self->priv->book, "page-removed", G_CALLBACK (remove_cb), self); + g_signal_connect (self->priv->book, "cleared", G_CALLBACK (clear_cb), self); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + + +static void +book_view_get_property(GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + BookView *self; + + self = BOOK_VIEW (object); + + switch (prop_id) { + case PROP_BOOK: + g_value_set_object (value, self->priv->book); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + + static void book_view_finalize (GObject *object) { @@ -710,6 +724,8 @@ book_view_class_init (BookViewClass *klass) GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->finalize = book_view_finalize; + object_class->set_property = book_view_set_property; + object_class->get_property = book_view_get_property; signals[PAGE_SELECTED] = g_signal_new ("page-selected", @@ -717,16 +733,32 @@ book_view_class_init (BookViewClass *klass) G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (BookViewClass, page_selected), NULL, NULL, - g_cclosure_marshal_VOID__POINTER, - G_TYPE_NONE, 1, G_TYPE_POINTER); + g_cclosure_marshal_VOID__OBJECT, + G_TYPE_NONE, 1, page_get_type ()); signals[SHOW_PAGE] = g_signal_new ("show-page", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (BookViewClass, show_page), NULL, NULL, - g_cclosure_marshal_VOID__POINTER, - G_TYPE_NONE, 1, G_TYPE_POINTER); + g_cclosure_marshal_VOID__OBJECT, + G_TYPE_NONE, 1, page_get_type ()); + signals[SHOW_MENU] = + g_signal_new ("show-menu", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (BookViewClass, show_page), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + g_object_class_install_property(object_class, + PROP_BOOK, + g_param_spec_object("book", + "book", + "Book being shown", + book_get_type(), + G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); g_type_class_add_private (klass, sizeof (BookViewPrivate)); } @@ -740,4 +772,26 @@ book_view_init (BookView *view) view->priv->page_data = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, (GDestroyNotify) g_object_unref); view->priv->cursor = GDK_ARROW; + + view->priv->drawing_area = gtk_drawing_area_new (); + gtk_widget_set_size_request (view->priv->drawing_area, 200, 100); + gtk_widget_set_can_focus (view->priv->drawing_area, TRUE); + gtk_widget_set_events (view->priv->drawing_area, GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_FOCUS_CHANGE_MASK | GDK_STRUCTURE_MASK | GDK_SCROLL_MASK); + gtk_box_pack_start (GTK_BOX (view), view->priv->drawing_area, TRUE, TRUE, 0); + + view->priv->scroll = gtk_hscrollbar_new (NULL); + view->priv->adjustment = gtk_range_get_adjustment (GTK_RANGE (view->priv->scroll)); + gtk_box_pack_start (GTK_BOX (view), view->priv->scroll, FALSE, TRUE, 0); + + g_signal_connect (view->priv->drawing_area, "configure-event", G_CALLBACK (configure_cb), view); + g_signal_connect (view->priv->drawing_area, "expose-event", G_CALLBACK (expose_cb), view); + g_signal_connect (view->priv->drawing_area, "motion-notify-event", G_CALLBACK (motion_cb), view); + g_signal_connect (view->priv->drawing_area, "key-press-event", G_CALLBACK (key_cb), view); + g_signal_connect (view->priv->drawing_area, "button-press-event", G_CALLBACK (button_cb), view); + g_signal_connect (view->priv->drawing_area, "button-release-event", G_CALLBACK (button_cb), view); + g_signal_connect_after (view->priv->drawing_area, "focus-in-event", G_CALLBACK (focus_cb), view); + g_signal_connect_after (view->priv->drawing_area, "focus-out-event", G_CALLBACK (focus_cb), view); + g_signal_connect (view->priv->adjustment, "value-changed", G_CALLBACK (scroll_cb), view); + + gtk_widget_show (view->priv->drawing_area); } -- cgit v1.2.3