diff options
Diffstat (limited to 'libnautilus-extensions/nautilus-icons-view-icon-item.c')
| -rw-r--r-- | libnautilus-extensions/nautilus-icons-view-icon-item.c | 230 |
1 files changed, 132 insertions, 98 deletions
diff --git a/libnautilus-extensions/nautilus-icons-view-icon-item.c b/libnautilus-extensions/nautilus-icons-view-icon-item.c index b56c4a41c..1ba9febe2 100644 --- a/libnautilus-extensions/nautilus-icons-view-icon-item.c +++ b/libnautilus-extensions/nautilus-icons-view-icon-item.c @@ -28,6 +28,7 @@ #include <math.h> #include <string.h> #include <stdio.h> +#include <gtk/gtksignal.h> #include <gdk-pixbuf/gdk-pixbuf.h> #include <libart_lgpl/art_rgb_pixbuf_affine.h> #include <libgnomeui/gnome-canvas-util.h> @@ -90,6 +91,12 @@ typedef struct { GList *emblem; } EmblemLayout; +enum { + BOUNDS_CHANGED, + LAST_SIGNAL +}; +static guint signals[LAST_SIGNAL]; + /* constants */ #define MAX_TEXT_WIDTH 80 @@ -100,65 +107,65 @@ static char stipple_bits[] = { 0x02, 0x01 }; static GdkFont *embedded_text_font; /* GtkObject */ -static void nautilus_icons_view_icon_item_initialize_class (NautilusIconsViewIconItemClass *class); -static void nautilus_icons_view_icon_item_initialize (NautilusIconsViewIconItem *item); -static void nautilus_icons_view_icon_item_destroy (GtkObject *object); -static int nautilus_icons_view_icon_item_event (GnomeCanvasItem *item, - GdkEvent *event); -static void nautilus_icons_view_icon_item_set_arg (GtkObject *object, - GtkArg *arg, - guint arg_id); -static void nautilus_icons_view_icon_item_get_arg (GtkObject *object, - GtkArg *arg, - guint arg_id); +static void nautilus_icons_view_icon_item_initialize_class (NautilusIconsViewIconItemClass *class); +static void nautilus_icons_view_icon_item_initialize (NautilusIconsViewIconItem *item); +static void nautilus_icons_view_icon_item_destroy (GtkObject *object); +static int nautilus_icons_view_icon_item_event (GnomeCanvasItem *item, + GdkEvent *event); +static void nautilus_icons_view_icon_item_set_arg (GtkObject *object, + GtkArg *arg, + guint arg_id); +static void nautilus_icons_view_icon_item_get_arg (GtkObject *object, + GtkArg *arg, + guint arg_id); /* GnomeCanvasItem */ -static void nautilus_icons_view_icon_item_update (GnomeCanvasItem *item, - double *affine, - ArtSVP *clip_path, - int flags); -static void nautilus_icons_view_icon_item_draw (GnomeCanvasItem *item, - GdkDrawable *drawable, - int x, - int y, - int width, - int height); -static double nautilus_icons_view_icon_item_point (GnomeCanvasItem *item, - double x, - double y, - int cx, - int cy, - GnomeCanvasItem **actual_item); -static void nautilus_icons_view_icon_item_bounds (GnomeCanvasItem *item, - double *x1, - double *y1, - double *x2, - double *y2); +static void nautilus_icons_view_icon_item_update (GnomeCanvasItem *item, + double *affine, + ArtSVP *clip_path, + int flags); +static void nautilus_icons_view_icon_item_draw (GnomeCanvasItem *item, + GdkDrawable *drawable, + int x, + int y, + int width, + int height); +static double nautilus_icons_view_icon_item_point (GnomeCanvasItem *item, + double x, + double y, + int cx, + int cy, + GnomeCanvasItem **actual_item); +static void nautilus_icons_view_icon_item_bounds (GnomeCanvasItem *item, + double *x1, + double *y1, + double *x2, + double *y2); /* private */ -static void draw_or_measure_text_box (GnomeCanvasItem *item, - GdkDrawable *drawable, - int icon_left, - int icon_bottom); -static void nautilus_icons_view_draw_text_box (GnomeCanvasItem *item, - GdkDrawable *drawable, - int icon_left, - int icon_bottom); -static void nautilus_icons_view_measure_text_box (GnomeCanvasItem *item); -static void nautilus_icons_view_icon_item_get_icon_canvas_rectangle (NautilusIconsViewIconItem *item, - ArtIRect *rect); -static void emblem_layout_reset (EmblemLayout *layout, - NautilusIconsViewIconItem *icon_item, - const ArtIRect *icon_rect); -static gboolean emblem_layout_next (EmblemLayout *layout, - GdkPixbuf **emblem_pixbuf, - ArtIRect *emblem_rect); -static void draw_pixbuf (GdkPixbuf *pixbuf, - GdkDrawable *drawable, - int x, - int y); -static gboolean hit_stretch_handle (NautilusIconsViewIconItem *item, - const ArtIRect *canvas_rect); +static void draw_or_measure_label_text (NautilusIconsViewIconItem *item, + GdkDrawable *drawable, + int icon_left, + int icon_bottom); +static void draw_label_text (NautilusIconsViewIconItem *item, + GdkDrawable *drawable, + int icon_left, + int icon_bottom); +static void measure_label_text (NautilusIconsViewIconItem *item); +static void get_icon_canvas_rectangle (NautilusIconsViewIconItem *item, + ArtIRect *rect); +static void emblem_layout_reset (EmblemLayout *layout, + NautilusIconsViewIconItem *icon_item, + const ArtIRect *icon_rect); +static gboolean emblem_layout_next (EmblemLayout *layout, + GdkPixbuf **emblem_pixbuf, + ArtIRect *emblem_rect); +static void draw_pixbuf (GdkPixbuf *pixbuf, + GdkDrawable *drawable, + int x, + int y); +static gboolean hit_stretch_handle (NautilusIconsViewIconItem *item, + const ArtIRect *canvas_rect); NAUTILUS_DEFINE_CLASS_BOILERPLATE (NautilusIconsViewIconItem, nautilus_icons_view_icon_item, GNOME_TYPE_CANVAS_ITEM) @@ -172,30 +179,43 @@ nautilus_icons_view_icon_item_initialize_class (NautilusIconsViewIconItemClass * object_class = GTK_OBJECT_CLASS (class); item_class = GNOME_CANVAS_ITEM_CLASS (class); - gtk_object_add_arg_type ("NautilusIconsViewIconItem::text", + gtk_object_add_arg_type ("NautilusIconsViewIconItem::text", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_TEXT); - gtk_object_add_arg_type ("NautilusIconsViewIconItem::font", + gtk_object_add_arg_type ("NautilusIconsViewIconItem::font", GTK_TYPE_BOXED, GTK_ARG_READWRITE, ARG_FONT); - gtk_object_add_arg_type ("NautilusIconsViewIconItem::highlighted_for_selection", + gtk_object_add_arg_type ("NautilusIconsViewIconItem::highlighted_for_selection", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HIGHLIGHTED_FOR_SELECTION); - gtk_object_add_arg_type ("NautilusIconsViewIconItem::highlighted_for_keyboard_selection", + gtk_object_add_arg_type ("NautilusIconsViewIconItem::highlighted_for_keyboard_selection", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HIGHLIGHTED_FOR_KEYBOARD_SELECTION); - gtk_object_add_arg_type ("NautilusIconsViewIconItem::highlighted_for_drop", + gtk_object_add_arg_type ("NautilusIconsViewIconItem::highlighted_for_drop", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HIGHLIGHTED_FOR_DROP); - gtk_object_add_arg_type ("NautilusIconsViewIconItem::text_source", + gtk_object_add_arg_type ("NautilusIconsViewIconItem::text_source", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_TEXT_SOURCE); object_class->destroy = nautilus_icons_view_icon_item_destroy; object_class->set_arg = nautilus_icons_view_icon_item_set_arg; object_class->get_arg = nautilus_icons_view_icon_item_get_arg; + signals[BOUNDS_CHANGED] + = gtk_signal_new ("bounds_changed", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (NautilusIconsViewIconItemClass, + bounds_changed), + gtk_marshal_NONE__POINTER, + GTK_TYPE_NONE, 1, + GTK_TYPE_POINTER); + + gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL); + item_class->update = nautilus_icons_view_icon_item_update; item_class->draw = nautilus_icons_view_icon_item_draw; item_class->point = nautilus_icons_view_icon_item_point; item_class->bounds = nautilus_icons_view_icon_item_bounds; item_class->event = nautilus_icons_view_icon_item_event; - + stipple = gdk_bitmap_create_from_data (NULL, stipple_bits, 2, 2); + /* FIXME: the font shouldn't be hard-wired like this */ embedded_text_font = gdk_font_load("-bitstream-charter-medium-r-normal-*-9-*-*-*-*-*-*-*"); } @@ -483,36 +503,52 @@ recompute_bounding_box (NautilusIconsViewIconItem *icon_item) item->y2 = bottom_right.y; } -/* Update handler for the icon canvas item. */ -static void -nautilus_icons_view_icon_item_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags) +void +nautilus_icons_view_icon_item_update_bounds (NautilusIconsViewIconItem *item) { - NautilusIconsViewIconItem *icon_item; - NautilusIconsViewIconItemDetails *details; + ArtIRect before, after; - icon_item = NAUTILUS_ICONS_VIEW_ICON_ITEM (item); - details = icon_item->details; + /* Compute new bounds. */ + nautilus_gnome_canvas_item_get_current_canvas_bounds + (GNOME_CANVAS_ITEM (item), &before); + recompute_bounding_box (item); + nautilus_gnome_canvas_item_get_current_canvas_bounds + (GNOME_CANVAS_ITEM (item), &after); - /* Make sure the text box measurements are set up - * before recalculating the bounding box. - */ - gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2); - nautilus_icons_view_measure_text_box (item); - recompute_bounding_box (icon_item); - gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2); - - NAUTILUS_CALL_PARENT_CLASS (GNOME_CANVAS_ITEM_CLASS, update, (item, affine, clip_path, flags)); + /* If the bounds didn't change, we are done. */ + if (nautilus_art_irect_equal (&before, &after)) { + return; + } + + /* Send out the bounds_changed signal and queue a redraw. */ + nautilus_gnome_canvas_request_redraw_rectangle + (GNOME_CANVAS_ITEM (item)->canvas, &before); + gtk_signal_emit (GTK_OBJECT (item), + signals[BOUNDS_CHANGED]); + nautilus_gnome_canvas_item_request_redraw + (GNOME_CANVAS_ITEM (item)); } +/* Update handler for the icon canvas item. */ +static void +nautilus_icons_view_icon_item_update (GnomeCanvasItem *item, + double *affine, + ArtSVP *clip_path, + int flags) +{ + nautilus_icons_view_icon_item_update_bounds (NAUTILUS_ICONS_VIEW_ICON_ITEM (item)); + nautilus_gnome_canvas_item_request_redraw (item); + NAUTILUS_CALL_PARENT_CLASS (GNOME_CANVAS_ITEM_CLASS, update, (item, affine, clip_path, flags)); +} /* Rendering */ /* Draw the text in a box, using gnomelib routines. */ static void -draw_or_measure_text_box (GnomeCanvasItem* item, - GdkDrawable *drawable, - int icon_left, - int icon_bottom) +draw_or_measure_label_text (NautilusIconsViewIconItem *item, + GdkDrawable *drawable, + int icon_left, + int icon_bottom) { NautilusIconsViewIconItemDetails *details; int width_so_far, height_so_far; @@ -524,7 +560,7 @@ draw_or_measure_text_box (GnomeCanvasItem* item, const char *text_piece; int i; - details = NAUTILUS_ICONS_VIEW_ICON_ITEM (item)->details; + details = item->details; if (details->font == NULL || details->text == NULL || details->text[0] == '\0') { details->text_height = 0; @@ -537,10 +573,10 @@ draw_or_measure_text_box (GnomeCanvasItem* item, if (drawable != NULL) { icon_width = details->pixbuf == NULL ? 0 : gdk_pixbuf_get_width (details->pixbuf); - gc = gdk_gc_new (item->canvas->layout.bin_window); + gc = gdk_gc_new (GNOME_CANVAS_ITEM (item)->canvas->layout.bin_window); } - max_text_width = floor (MAX_TEXT_WIDTH * item->canvas->pixels_per_unit); + max_text_width = floor (MAX_TEXT_WIDTH * GNOME_CANVAS_ITEM (item)->canvas->pixels_per_unit); pieces = g_strsplit (details->text, "\n", 0); for (i = 0; (text_piece = pieces[i]) != NULL; i++) { @@ -610,16 +646,16 @@ draw_or_measure_text_box (GnomeCanvasItem* item, } static void -nautilus_icons_view_measure_text_box (GnomeCanvasItem* item) +measure_label_text (NautilusIconsViewIconItem *item) { - draw_or_measure_text_box (item, NULL, 0, 0); + draw_or_measure_label_text (item, NULL, 0, 0); } static void -nautilus_icons_view_draw_text_box (GnomeCanvasItem* item, GdkDrawable *drawable, +draw_label_text (NautilusIconsViewIconItem *item, GdkDrawable *drawable, int icon_left, int icon_bottom) { - draw_or_measure_text_box (item, drawable, icon_left, icon_bottom); + draw_or_measure_label_text (item, drawable, icon_left, icon_bottom); } /* utility routine to draw the mini-text inside text files */ @@ -958,8 +994,7 @@ nautilus_icons_view_icon_item_draw (GnomeCanvasItem *item, GdkDrawable *drawable } /* Compute icon rectangle in drawable coordinates. */ - nautilus_icons_view_icon_item_get_icon_canvas_rectangle - (icon_item, &icon_rect); + get_icon_canvas_rectangle (icon_item, &icon_rect); icon_rect.x0 -= x; icon_rect.y0 -= y; icon_rect.x1 -= x; @@ -988,7 +1023,7 @@ nautilus_icons_view_icon_item_draw (GnomeCanvasItem *item, GdkDrawable *drawable draw_embedded_text (item, drawable, &icon_rect); /* Draw the label text. */ - nautilus_icons_view_draw_text_box (item, drawable, icon_rect.x0, icon_rect.y1); + draw_label_text (icon_item, drawable, icon_rect.x0, icon_rect.y1); } /* handle events */ @@ -1093,8 +1128,7 @@ hit_test (NautilusIconsViewIconItem *icon_item, const ArtIRect *canvas_rect) } /* Check for hit in the icon. */ - nautilus_icons_view_icon_item_get_icon_canvas_rectangle - (icon_item, &icon_rect); + get_icon_canvas_rectangle (icon_item, &icon_rect); if (hit_test_pixbuf (details->pixbuf, &icon_rect, canvas_rect)) { return TRUE; } @@ -1157,6 +1191,8 @@ nautilus_icons_view_icon_item_bounds (GnomeCanvasItem *item, double *x1, double icon_item = NAUTILUS_ICONS_VIEW_ICON_ITEM (item); details = icon_item->details; + measure_label_text (icon_item); + /* Compute icon rectangle. */ icon_rect.x0 = 0; icon_rect.y0 = 0; @@ -1177,7 +1213,6 @@ nautilus_icons_view_icon_item_bounds (GnomeCanvasItem *item, double *x1, double while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect)) { art_irect_union (&total_rect, &total_rect, &emblem_rect); } - /* Add 2 pixels slop to each side. */ total_rect.x0 -= 2; @@ -1224,7 +1259,7 @@ nautilus_icons_view_icon_item_get_icon_rectangle (NautilusIconsViewIconItem *ite /* Get the rectangle of the icon only, in canvas coordinates. */ void -nautilus_icons_view_icon_item_get_icon_canvas_rectangle (NautilusIconsViewIconItem *item, +get_icon_canvas_rectangle (NautilusIconsViewIconItem *item, ArtIRect *rect) { double i2c[6]; @@ -1279,8 +1314,7 @@ hit_stretch_handle (NautilusIconsViewIconItem *item, } /* Quick check to see if the rect hits the icon at all. */ - nautilus_icons_view_icon_item_get_icon_canvas_rectangle - (item, &icon_rect); + get_icon_canvas_rectangle (item, &icon_rect); if (!nautilus_art_irect_hits_irect (probe_canvas_rect, &icon_rect)) { return FALSE; } |