forked from sergiotarxz/mangareader
178 lines
7.2 KiB
C
178 lines
7.2 KiB
C
#include <gtk/gtk.h>
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#include <gdk/gdk.h>
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#include <openmg/chapter.h>
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#include <openmg/view/chapter_view.h>
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#include <openmg/view/picture.h>
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#include <openmg/util/gobject_utility_extensions.h>
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#include <openmg/util/string.h>
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#include <openmg/backend/readmng.h>
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static void
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fire_zoom (GtkGestureZoom *zoom,
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gdouble scale,
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gpointer user_data);
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typedef struct {
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guint current_page;
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GListModel *pages;
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GtkPicture *current_picture;
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AdwLeaflet *views_leaflet;
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GtkScrolledWindow *zoomable_picture_container;
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} ChapterVisorData;
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static void
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set_image_zoomable_picture_container (ChapterVisorData *chapter_visor_data);
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static void
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set_zoomable_picture_container_properties (
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GtkScrolledWindow *zoomable_picture_container);
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static void
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append_chapter_view_leaflet (AdwLeaflet *views_leaflet,
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GtkBox *chapter_view_container);
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static void
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add_controls_overlay (GtkOverlay *overlay, ChapterVisorData *chapter_visor_data);
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static void
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go_prev (GtkButton *prev,
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gpointer user_data);
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static void
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go_next (GtkButton *next,
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gpointer user_data);
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static void
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image_page_show (GtkWidget *picture, gpointer user_data) {
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GtkWidget *views_leaflet = GTK_WIDGET (user_data);
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GdkPaintable *paintable = gtk_picture_get_paintable (GTK_PICTURE (picture));
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double final_width = 0;
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double final_height = 0;
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guint width = gtk_widget_get_allocated_width
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(views_leaflet);
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gdk_paintable_compute_concrete_size (
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paintable,
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width,
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0,
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gdk_paintable_get_intrinsic_width (paintable),
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gdk_paintable_get_intrinsic_height (paintable),
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&final_width,
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&final_height
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);
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g_object_set_property_int (G_OBJECT (picture),
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"width-request", (int) final_width);
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g_object_set_property_int (G_OBJECT (picture),
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"height-request", (int) final_height);
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}
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void
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setup_chapter_view (MgMangaChapter *chapter, AdwLeaflet *views_leaflet) {
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MgBackendReadmng *readmng = mg_backend_readmng_new ();
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GtkBox *chapter_view_container = GTK_BOX (gtk_box_new (GTK_ORIENTATION_VERTICAL, 0));
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GtkScrolledWindow *zoomable_picture_container = GTK_SCROLLED_WINDOW (gtk_scrolled_window_new ());
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GtkOverlay *overlay = GTK_OVERLAY (gtk_overlay_new ());
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GListModel *pages = mg_backend_readmng_get_chapter_images (readmng, chapter);
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ChapterVisorData *chapter_visor_data = g_malloc (sizeof *chapter_visor_data);
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chapter_visor_data->current_page = 0;
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chapter_visor_data->pages = pages;
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chapter_visor_data->views_leaflet = views_leaflet;
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chapter_visor_data->zoomable_picture_container = zoomable_picture_container;
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set_zoomable_picture_container_properties (zoomable_picture_container);
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set_image_zoomable_picture_container (chapter_visor_data);
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gtk_overlay_set_child (overlay, GTK_WIDGET (zoomable_picture_container));
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add_controls_overlay (overlay, chapter_visor_data);
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gtk_box_append (chapter_view_container, GTK_WIDGET (overlay));
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append_chapter_view_leaflet (views_leaflet, chapter_view_container);
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}
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static void
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add_controls_overlay (GtkOverlay *overlay, ChapterVisorData *chapter_visor_data) {
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GtkButton *next_button = GTK_BUTTON (gtk_button_new_from_icon_name
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("go-next-symbolic"));
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GtkButton *previous_button = GTK_BUTTON (gtk_button_new_from_icon_name
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("go-previous-symbolic"));
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g_signal_connect (G_OBJECT (next_button), "clicked", G_CALLBACK (go_next), chapter_visor_data);
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g_signal_connect (G_OBJECT (previous_button), "clicked", G_CALLBACK (go_prev), chapter_visor_data);
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gtk_widget_set_valign (GTK_WIDGET (next_button), GTK_ALIGN_CENTER);
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gtk_widget_set_halign (GTK_WIDGET (next_button), GTK_ALIGN_END);
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gtk_widget_set_valign (GTK_WIDGET (previous_button), GTK_ALIGN_CENTER);
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gtk_widget_set_halign (GTK_WIDGET (previous_button), GTK_ALIGN_START);
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gtk_overlay_add_overlay (overlay, GTK_WIDGET (next_button));
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gtk_overlay_add_overlay (overlay, GTK_WIDGET (previous_button));
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}
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static void
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go_next (GtkButton *next,
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gpointer user_data) {
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ChapterVisorData *chapter_visor_data = (ChapterVisorData *) user_data;
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GListModel *pages = chapter_visor_data->pages;
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if (chapter_visor_data->current_page < g_list_model_get_n_items (pages) -1) {
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chapter_visor_data->current_page = chapter_visor_data->current_page + 1;
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set_image_zoomable_picture_container (chapter_visor_data);
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}
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}
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static void
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go_prev (GtkButton *prev,
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gpointer user_data) {
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ChapterVisorData *chapter_visor_data = (ChapterVisorData *) user_data;
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if (chapter_visor_data->current_page > 0) {
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chapter_visor_data->current_page = chapter_visor_data->current_page - 1;
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set_image_zoomable_picture_container (chapter_visor_data);
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}
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}
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static void
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set_image_zoomable_picture_container (ChapterVisorData *chapter_visor_data) {
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GtkScrolledWindow *zoomable_picture_container = chapter_visor_data->zoomable_picture_container;
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MgUtilString *string_util = mg_util_string_new ();
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GtkPicture *current_picture;
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GListModel *pages = chapter_visor_data->pages;
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guint current_page = chapter_visor_data->current_page;
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AdwLeaflet *views_leaflet = chapter_visor_data->views_leaflet;
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const char *url_image_not_owned =
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gtk_string_list_get_string (GTK_STRING_LIST
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(pages), current_page);
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char *url_image = mg_util_string_alloc_string (string_util, strlen (url_image_not_owned));
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mg_util_string_copy_substring (string_util,
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url_image_not_owned, url_image,
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strlen(url_image_not_owned) + 1, 0,
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strlen (url_image_not_owned));
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current_picture = create_picture_from_url
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(url_image, -1);
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chapter_visor_data->current_picture = current_picture;
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g_signal_connect (G_OBJECT (current_picture), "map",
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G_CALLBACK (image_page_show), views_leaflet);
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gtk_scrolled_window_set_child (zoomable_picture_container, GTK_WIDGET (current_picture));
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}
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static void
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set_zoomable_picture_container_properties (
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GtkScrolledWindow *zoomable_picture_container) {
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GtkGesture *zoom_controller = gtk_gesture_zoom_new ();
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g_object_set_property_int (G_OBJECT (zoomable_picture_container), "hexpand", 1);
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g_object_set_property_int (G_OBJECT (zoomable_picture_container), "vexpand", 1);
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gtk_widget_add_controller (GTK_WIDGET (zoomable_picture_container),
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GTK_EVENT_CONTROLLER (zoom_controller));
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g_signal_connect (G_OBJECT (zoom_controller), "scale-changed", G_CALLBACK (fire_zoom), NULL);
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}
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static void
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append_chapter_view_leaflet (AdwLeaflet *views_leaflet,
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GtkBox *chapter_view_container) {
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GtkWidget *widget = adw_leaflet_get_adjacent_child
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(views_leaflet, ADW_NAVIGATION_DIRECTION_FORWARD);
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for (;widget;widget = adw_leaflet_get_adjacent_child
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(views_leaflet, ADW_NAVIGATION_DIRECTION_FORWARD)) {
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adw_leaflet_remove (views_leaflet, widget);
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}
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adw_leaflet_append (views_leaflet, GTK_WIDGET (chapter_view_container));
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adw_leaflet_navigate (views_leaflet, ADW_NAVIGATION_DIRECTION_FORWARD);
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}
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static void
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fire_zoom (GtkGestureZoom *zoom,
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gdouble scale,
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gpointer user_data) {
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// Do something.
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}
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