diff options
Diffstat (limited to 'libnautilus-extensions/nautilus-list-column-title.c')
| -rw-r--r-- | libnautilus-extensions/nautilus-list-column-title.c | 1010 |
1 files changed, 0 insertions, 1010 deletions
diff --git a/libnautilus-extensions/nautilus-list-column-title.c b/libnautilus-extensions/nautilus-list-column-title.c deleted file mode 100644 index 26fff3a31..000000000 --- a/libnautilus-extensions/nautilus-list-column-title.c +++ /dev/null @@ -1,1010 +0,0 @@ -/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- - - nautilus-list-column-title.c: List column title widget for interacting with list columns - - Copyright (C) 2000 Eazel, Inc. - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public - License along with this program; if not, write to the - Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. - - Authors: Pavel Cisler <pavel@eazel.com> - -*/ - -#include <config.h> -#include "nautilus-list-column-title.h" - -#include <eel/eel-gtk-macros.h> -#include <eel/eel-gdk-extensions.h> - -#include "nautilus-list.h" - -#include <gdk/gdk.h> -#include <gdk-pixbuf/gdk-pixbuf.h> -#include <gtk/gtkmain.h> - -#include <libgnomeui/gnome-pixmap.h> - -#include <eel/eel-gdk-pixbuf-extensions.h> - -#include <string.h> - -/* these are from GtkCList, for now we need to copy them here - * eventually the target list should be able to describe the values - */ - -enum { - /* this defines the base grid spacing */ - CELL_SPACING = 1, - - /* added the horizontal space at the beginning and end of a row */ - COLUMN_INSET = 3, - - /* from GtkButton */ - CHILD_SPACING = 1, - - /* the width of the column resize windows */ - DRAG_WIDTH = 6 -}; - -static const char * down_xpm[] = { - "6 5 2 1", - " c None", - ". c #000000", - "......", - " ", - " .... ", - " ", - " .. " -}; - -static const char * up_xpm[] = { - "6 5 2 1", - " c None", - ". c #000000", - " .. ", - " ", - " .... ", - " ", - "......" -}; - -#define COLUMN_TITLE_THEME_STYLE_NAME "menu" - -struct NautilusListColumnTitleDetails -{ - /* gc for blitting sort order pixmaps, lazily allocated */ - GdkGC *copy_area_gc; - - /* sort order indicator pixmaps, lazily allocated */ - GdkPixmap *up_indicator_pixmap; - GdkBitmap *up_indicator_mask; - GdkPixmap *down_indicator_pixmap; - GdkBitmap *down_indicator_mask; - - /* offscreen drawing idle handler id*/ - guint offscreen_drawing_idle; - - int tracking_column_resize; - /* index of the column we are currently tracking or -1 */ - int tracking_column_prelight; - /* index of the column we are currently rolling over or -1 */ - int tracking_column_press; - /* index of the column we are currently pressing or -1 */ - - int last_tracking_x; - /* last horizontal track point so we can only resize when needed */ - gboolean resize_cursor_on; - -}; - -static void nautilus_list_column_title_initialize_class (gpointer klass); -static void nautilus_list_column_title_initialize (gpointer object, gpointer klass); -static void nautilus_list_column_title_paint (GtkWidget *widget, GtkWidget *draw_target, GdkDrawable *target_drawable, GdkRectangle *area); -static void nautilus_list_column_title_draw (GtkWidget *widget, GdkRectangle *box); -static void nautilus_list_column_title_buffered_draw (GtkWidget *widget); -static void nautilus_list_column_title_queue_buffered_draw(GtkWidget *widget); -static gboolean nautilus_list_column_title_expose (GtkWidget *widget, GdkEventExpose *event); -static void nautilus_list_column_title_realize (GtkWidget *widget); -static void nautilus_list_column_title_finalize (GtkObject *object); -static void nautilus_list_column_title_request (GtkWidget *widget, GtkRequisition *requisition); - -static gboolean nautilus_list_column_title_motion (GtkWidget *widget, GdkEventMotion *event); -static gboolean nautilus_list_column_title_leave (GtkWidget *widget, GdkEventCrossing *event); - -static gboolean nautilus_list_column_title_button_press (GtkWidget *widget, GdkEventButton *event); -static gboolean nautilus_list_column_title_button_release (GtkWidget *widget, GdkEventButton *event); - - -EEL_DEFINE_CLASS_BOILERPLATE (NautilusListColumnTitle, nautilus_list_column_title, GTK_TYPE_BIN) -/* generates nautilus_list_column_title_get_type */ - -static void -nautilus_list_column_title_initialize_class (gpointer klass) -{ - GtkObjectClass *object_class; - GtkWidgetClass *widget_class; - - object_class = GTK_OBJECT_CLASS (klass); - widget_class = GTK_WIDGET_CLASS (klass); - - object_class->finalize = nautilus_list_column_title_finalize; - widget_class->draw = nautilus_list_column_title_draw; - widget_class->expose_event = nautilus_list_column_title_expose; - widget_class->realize = nautilus_list_column_title_realize; - widget_class->size_request = nautilus_list_column_title_request; - widget_class->motion_notify_event = nautilus_list_column_title_motion; - widget_class->leave_notify_event = nautilus_list_column_title_leave; - widget_class->button_press_event = nautilus_list_column_title_button_press; - widget_class->button_release_event = nautilus_list_column_title_button_release; -} - -NautilusListColumnTitle * -nautilus_list_column_title_new (void) -{ - return NAUTILUS_LIST_COLUMN_TITLE - (gtk_widget_new (nautilus_list_column_title_get_type (), NULL)); -} - -static void -nautilus_list_column_title_initialize (gpointer object, gpointer klass) -{ - NautilusListColumnTitle *column_title; - - column_title = NAUTILUS_LIST_COLUMN_TITLE(object); - column_title->details = g_new0 (NautilusListColumnTitleDetails, 1); - - /* copy_gc, up/down indicators get allocated lazily when needed */ - column_title->details->copy_area_gc = NULL; - column_title->details->up_indicator_pixmap = NULL; - column_title->details->up_indicator_mask = NULL; - column_title->details->down_indicator_pixmap = NULL; - column_title->details->down_indicator_mask = NULL; - - column_title->details->offscreen_drawing_idle = 0; - - column_title->details->resize_cursor_on = FALSE; - column_title->details->tracking_column_resize = -1; - column_title->details->tracking_column_prelight = -1; - column_title->details->tracking_column_press = -1; - column_title->details->last_tracking_x = -1; - - GTK_WIDGET_UNSET_FLAGS (object, GTK_NO_WINDOW); -} - -static void -nautilus_list_column_title_realize (GtkWidget *widget) -{ - GdkWindowAttr attributes; - int attributes_mask; - - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - - GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); - - /* ask for expose events */ - attributes.window_type = GDK_WINDOW_CHILD; - attributes.x = widget->allocation.x + GTK_CONTAINER (widget)->border_width; - attributes.y = widget->allocation.y + GTK_CONTAINER (widget)->border_width; - attributes.width = widget->allocation.width - GTK_CONTAINER (widget)->border_width * 2; - attributes.height = widget->allocation.height - GTK_CONTAINER (widget)->border_width * 2; - attributes.wclass = GDK_INPUT_OUTPUT; - attributes.visual = gtk_widget_get_visual (widget); - attributes.colormap = gtk_widget_get_colormap (widget); - attributes.event_mask = gtk_widget_get_events (widget); - attributes.event_mask |= GDK_EXPOSURE_MASK - | GDK_ENTER_NOTIFY_MASK - | GDK_LEAVE_NOTIFY_MASK - | GDK_BUTTON_PRESS_MASK - | GDK_BUTTON_RELEASE_MASK - | GDK_POINTER_MOTION_MASK - | GDK_POINTER_MOTION_HINT_MASK - | GDK_KEY_PRESS_MASK; - - attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; - - /* give ourselves a background window */ - widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), - &attributes, attributes_mask); - gdk_window_set_user_data (widget->window, widget); - - widget->style = gtk_style_attach (widget->style, widget->window); - gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); -} - -static void -nautilus_list_column_title_finalize (GtkObject *object) -{ - NautilusListColumnTitle *column_title; - - column_title = NAUTILUS_LIST_COLUMN_TITLE(object); - - if (column_title->details->up_indicator_pixmap != NULL) { - gdk_pixmap_unref (column_title->details->up_indicator_pixmap); - column_title->details->up_indicator_pixmap = NULL; - } - if (column_title->details->up_indicator_mask != NULL) { - gdk_bitmap_unref (column_title->details->up_indicator_mask); - column_title->details->up_indicator_mask = NULL; - } - if (column_title->details->down_indicator_pixmap != NULL) { - gdk_pixmap_unref (column_title->details->down_indicator_pixmap); - column_title->details->down_indicator_pixmap = NULL; - } - if (column_title->details->down_indicator_mask != NULL) { - gdk_bitmap_unref (column_title->details->down_indicator_mask); - column_title->details->down_indicator_mask = NULL; - } - - if (column_title->details->offscreen_drawing_idle != 0) { - gtk_idle_remove (column_title->details->offscreen_drawing_idle); - column_title->details->offscreen_drawing_idle = 0; - } - - if (column_title->details->copy_area_gc != NULL) { - gdk_gc_destroy (column_title->details->copy_area_gc); - } - - g_free (column_title->details); - - EEL_CALL_PARENT (GTK_OBJECT_CLASS, finalize, (object)); -} - -static void -nautilus_list_column_title_request (GtkWidget *widget, GtkRequisition *requisition) -{ - /* size requisition: make sure we have at least a minimal height */ - - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - g_assert (requisition != NULL); - - requisition->width = (GTK_CONTAINER (widget)->border_width + CHILD_SPACING + - widget->style->klass->xthickness) * 2; - requisition->height = (GTK_CONTAINER (widget)->border_width + CHILD_SPACING + - widget->style->klass->ythickness) * 2; - - - if (GTK_BIN (widget)->child && GTK_WIDGET_VISIBLE (GTK_BIN (widget)->child)) { - GtkRequisition child_requisition; - - gtk_widget_size_request (GTK_BIN (widget)->child, &child_requisition); - - requisition->width += child_requisition.width; - requisition->height += child_requisition.height; - - requisition->height = MIN (requisition->height, 10); - } -} - -static const char * -get_column_label_at (GtkWidget *column_title, int index) -{ - NautilusCList *parent_clist; - - parent_clist = NAUTILUS_CLIST (column_title->parent); - - return parent_clist->column[index].title; -} - -static void -get_column_frame_at(GtkWidget *column_title, int index, GdkRectangle *result) -{ - NautilusCList *parent_clist; - parent_clist = NAUTILUS_CLIST (column_title->parent); - - *result = parent_clist->column_title_area; - result->x = parent_clist->column[index].area.x - COLUMN_INSET; - result->y = 0; - result->width = parent_clist->column[index].area.width - + CELL_SPACING + 2 * COLUMN_INSET - 1; -} - -static void -load_up_indicator (const char **xpm_data, - GdkPixmap **indicator_pixmap, GdkBitmap **indicator_mask) -{ - GdkPixbuf *pixbuf; - - /* sanity */ - *indicator_pixmap = NULL; - *indicator_mask = NULL; - - pixbuf = gdk_pixbuf_new_from_xpm_data (xpm_data); - - /* can't load, theoretically, we should always be able to load, - * but we'll be a good coder and catch possible errors */ - if (pixbuf == NULL) { - g_warning ("Cannot load up/down indicator, should never happen"); - return; - } - - gdk_pixbuf_render_pixmap_and_mask (pixbuf, indicator_pixmap, indicator_mask, EEL_STANDARD_ALPHA_THRESHHOLD); - - gdk_pixbuf_unref (pixbuf); -} - -static void -get_sort_indicator (GtkWidget *widget, gboolean ascending, - GdkPixmap **indicator_pixmap, GdkBitmap **indicator_mask) -{ - /* return the sort order pixmap for a given sort direction - * allocate the pixmap first time around - */ - NautilusListColumnTitle *column_title; - - g_return_if_fail (indicator_pixmap != NULL); - g_return_if_fail (indicator_mask != NULL); - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - - if (ascending) { - if (column_title->details->up_indicator_pixmap == NULL) { - g_assert (column_title->details->up_indicator_mask == NULL); - - load_up_indicator (up_xpm, - &column_title->details->up_indicator_pixmap, - &column_title->details->up_indicator_mask); - } - *indicator_pixmap = column_title->details->up_indicator_pixmap; - *indicator_mask = column_title->details->up_indicator_mask; - } else { - if (column_title->details->down_indicator_pixmap == NULL) { - g_assert (column_title->details->down_indicator_mask == NULL); - - load_up_indicator (down_xpm, - &column_title->details->down_indicator_pixmap, - &column_title->details->down_indicator_mask); - } - *indicator_pixmap = column_title->details->down_indicator_pixmap; - *indicator_mask = column_title->details->down_indicator_mask; - } -} - -/* Add more truncation modes, optimize for performance, move to nautilus-gdk-extensions */ -static char * -truncate_string (const char *string, GdkFont *font, int width, int *final_width) -{ - int current_width; - int ellipsis_width; - int length; - int trimmed_length; - char *result; - - length = strlen (string); - current_width = gdk_text_width (font, string, length); - if (current_width <= width) { - /* trivial case, already fits fine */ - if (final_width != NULL) { - *final_width = current_width; - } - return g_strdup (string); - } - - ellipsis_width = gdk_string_width (font, "..."); - if (ellipsis_width > width) { - /* we can't fit anything */ - if (final_width != NULL) { - *final_width = 0; - } - return g_strdup (""); - } - - width -= ellipsis_width; - - for (trimmed_length = length - 1; trimmed_length >= 0; trimmed_length--) { - current_width = gdk_text_width (font, string, trimmed_length); - if (current_width <= width) - break; - } - result = (char *) g_malloc (trimmed_length + 3 + 1); - strncpy (result, string, trimmed_length); - strcpy (result + trimmed_length, "..."); - - if (final_width != NULL) { - *final_width = current_width + ellipsis_width; - } - - return result; -} - -/* FIXME bugzilla.eazel.com 615: - * Some of these magic numbers could be replaced with some more dynamic values - */ -enum { - CELL_TITLE_INSET = 3, - TITLE_BASELINE_OFFSET = 6, - SORT_ORDER_INDICATOR_WIDTH = 10, - SORT_INDICATOR_X_OFFSET = 6, - SORT_INDICATOR_Y_OFFSET = 3 -}; - -static void -nautilus_list_column_title_paint (GtkWidget *widget, GtkWidget *draw_target, - GdkDrawable *target_drawable, GdkRectangle *area) -{ - NautilusListColumnTitle *column_title; - NautilusCList *parent_clist; - int index; - - g_assert (NAUTILUS_CLIST (widget->parent) != NULL); - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - parent_clist = NAUTILUS_CLIST (widget->parent); - - for (index = 0; index < parent_clist->columns; index++) { - GdkRectangle cell_rectangle; - GdkRectangle cell_redraw_area; - const char *cell_label; - int text_x_offset; - int text_x_available_end; - int sort_indicator_x_offset; - GdkPixmap *sort_indicator_pixmap; - GdkBitmap *sort_indicator_mask; - gboolean right_justified; - - sort_indicator_x_offset = 0; - sort_indicator_pixmap = NULL; - sort_indicator_mask = NULL; - right_justified = (parent_clist->column[index].justification == GTK_JUSTIFY_RIGHT); - - /* pick the ascending/descending sort indicator if needed */ - if (index == parent_clist->sort_column) { - get_sort_indicator (widget, - parent_clist->sort_type == GTK_SORT_ASCENDING, - &sort_indicator_pixmap, - &sort_indicator_mask); - } - - get_column_frame_at (widget, index, &cell_rectangle); - gdk_rectangle_intersect (&cell_rectangle, area, &cell_redraw_area); - - if (cell_redraw_area.width == 0 || cell_redraw_area.height == 0) { - /* no work, go on to the next */ - continue; - } - - cell_label = get_column_label_at (widget, index); - - /* FIXME bugzilla.eazel.com 616: - * add support for center justification - */ - - text_x_offset = cell_rectangle.x + CELL_TITLE_INSET; - text_x_available_end = cell_rectangle.x + cell_rectangle.width - 2 * CELL_TITLE_INSET; - - /* Paint the column tiles as rectangles using "menu" (COLUMN_TITLE_THEME_STYLE_NAME). - * Style buttons as used by GtkCList produce round corners in some themes. - * Eventually we might consider having a separate style for column titles. - */ - gtk_paint_box (widget->style, target_drawable, - column_title->details->tracking_column_prelight == index ? - GTK_STATE_PRELIGHT : GTK_STATE_NORMAL, - column_title->details->tracking_column_press == index - ? GTK_SHADOW_IN : GTK_SHADOW_OUT, - area, draw_target, COLUMN_TITLE_THEME_STYLE_NAME, - cell_rectangle.x, cell_rectangle.y, - cell_rectangle.width, cell_rectangle.height); - - - /* Draw the sort indicator if needed */ - if (sort_indicator_pixmap != NULL) { - int y_offset; - - if (right_justified) { - sort_indicator_x_offset = cell_rectangle.x + SORT_INDICATOR_X_OFFSET; - text_x_offset = sort_indicator_x_offset + CELL_TITLE_INSET - + SORT_ORDER_INDICATOR_WIDTH ; - } else { - sort_indicator_x_offset = cell_rectangle.x + cell_rectangle.width - - SORT_INDICATOR_X_OFFSET - SORT_ORDER_INDICATOR_WIDTH; - text_x_available_end = sort_indicator_x_offset - CELL_TITLE_INSET; - } - y_offset = cell_rectangle.y + cell_rectangle.height / 2 - - SORT_INDICATOR_Y_OFFSET; - - /* allocate the sort indicator copy gc first time around */ - if (column_title->details->copy_area_gc == NULL) { - column_title->details->copy_area_gc = gdk_gc_new (widget->window); - gdk_gc_set_function (column_title->details->copy_area_gc, GDK_COPY); - } - /* move the pixmap clip mask and origin to the right spot in the gc */ - gdk_gc_set_clip_mask (column_title->details->copy_area_gc, - sort_indicator_mask); - gdk_gc_set_clip_origin (column_title->details->copy_area_gc, sort_indicator_x_offset, y_offset); - - - gdk_draw_pixmap (target_drawable, column_title->details->copy_area_gc, - sort_indicator_pixmap, 0, 0, sort_indicator_x_offset, y_offset, - -1, -1); - } - - if (cell_label) { - char *truncated_label; - int truncanted_width; - GdkRectangle temporary; - - /* Extend the redraw area vertically to contain the entire cell - * -- seems like if I don't do this, for short exposed areas no text - * will get drawn. - * This happens when the title is half off-screen and you move it up by a pixel or two. - * If you move it up faster, it gets redrawn properly. - */ - cell_redraw_area.y = cell_rectangle.y; - cell_redraw_area.height = cell_rectangle.height; - - /* Clip a little more than the cell rectangle to - * not have the text draw over the cell broder. - */ - temporary = cell_rectangle; - /* Eeeek: magic numbers */ - eel_rectangle_inset (&temporary, 2, 2); - gdk_rectangle_intersect (&cell_redraw_area, &temporary, &cell_redraw_area); - - truncated_label = truncate_string (cell_label, widget->style->font, - text_x_available_end - text_x_offset, &truncanted_width); - - if (right_justified) { - text_x_offset = text_x_available_end - truncanted_width; - } - - gtk_paint_string (widget->style, target_drawable, GTK_STATE_NORMAL, - &cell_redraw_area, draw_target, "label", - text_x_offset, - cell_rectangle.y + cell_rectangle.height - TITLE_BASELINE_OFFSET, - truncated_label); - g_free (truncated_label); - } - } -} - -static void -nautilus_list_column_title_draw (GtkWidget *widget, GdkRectangle *area) -{ - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - g_assert (area != NULL); - - if (!GTK_WIDGET_DRAWABLE (widget)) { - return; - } - - nautilus_list_column_title_paint (widget, widget, widget->window, area); -} - -static void -nautilus_list_column_title_buffered_draw (GtkWidget *widget) -{ - /* draw using an offscreen_pixmap */ - GdkRectangle redraw_area; - NautilusListColumnTitle *column_title; - GdkPixmap *offscreen_pixmap; - GdkGC *offscreen_blitting_gc; - - /* don't do anything if not drawable */ - if ( ! GTK_WIDGET_DRAWABLE (widget)) { - return; - } - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - - redraw_area.x = 0; - redraw_area.y = 0; - redraw_area.width = widget->allocation.width; - redraw_area.height = widget->allocation.height; - - /* allocate a new offscreen_pixmap */ - offscreen_pixmap = gdk_pixmap_new (widget->window, - redraw_area.width, - redraw_area.height, -1); - - /* Erase the offscreen background. - * We are using the GtkStyle call to draw the background - this is a tiny bit - * less efficient but gives us the convenience of setting up the right colors and - * gc for the style we are using to blit the column titles. - */ - gtk_paint_box (widget->style, offscreen_pixmap, - GTK_STATE_NORMAL, GTK_SHADOW_OUT, - &redraw_area, widget, - COLUMN_TITLE_THEME_STYLE_NAME, - redraw_area.x, redraw_area.y, - redraw_area.width, redraw_area.height); - - /* render the column titles into the offscreen */ - nautilus_list_column_title_paint (widget, widget, - offscreen_pixmap, &redraw_area); - - /* allocate a gc to blit the offscreen */ - offscreen_blitting_gc = gdk_gc_new (widget->window); - - /* blit the offscreen into the real view */ - gdk_draw_pixmap (widget->window, offscreen_blitting_gc, - offscreen_pixmap, 0, 0, 0, 0, -1, -1); - - gdk_pixmap_unref (offscreen_pixmap); - gdk_gc_destroy (offscreen_blitting_gc); -} - -/* Do all buffered drawing in an idle, this means it's only done after all - * events have been processed and thus we don't do it unneccessairly */ -static gboolean -offscreen_drawing_idle_handler (gpointer data) -{ - GtkWidget *widget; - NautilusListColumnTitle *column_title; - - g_assert (GTK_IS_WIDGET (data)); - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (data)); - - widget = GTK_WIDGET (data); - column_title = NAUTILUS_LIST_COLUMN_TITLE (data); - - nautilus_list_column_title_buffered_draw (widget); - - column_title->details->offscreen_drawing_idle = 0; - - return FALSE; -} - -/* queue a buffered_draw to be called later after all other events - * are processed. Increasing performance and reducing memory load. */ -static void -nautilus_list_column_title_queue_buffered_draw (GtkWidget *widget) -{ - NautilusListColumnTitle *column_title; - - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - - column_title = NAUTILUS_LIST_COLUMN_TITLE (widget); - - if (column_title->details->offscreen_drawing_idle == 0) { - column_title->details->offscreen_drawing_idle = - gtk_idle_add (offscreen_drawing_idle_handler, widget); - } -} - -static gboolean -nautilus_list_column_title_expose (GtkWidget *widget, GdkEventExpose *event) -{ - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - g_assert (event != NULL); - - if (!GTK_WIDGET_DRAWABLE (widget)) { - return FALSE; - } - - nautilus_list_column_title_paint (widget, widget, widget->window, &event->area); - - return FALSE; -} - -static int -in_column_rect (GtkWidget *widget, int x, int y) -{ - /* return the index of the column we hit or -1 */ - - NautilusCList *parent_clist; - int index; - - parent_clist = NAUTILUS_CLIST (widget->parent); - - for (index = 0; index < parent_clist->columns; index++) { - /* hit testing for column resizing */ - GdkRectangle cell_rectangle; - - get_column_frame_at (widget, index, &cell_rectangle); - - /* inset by a pixel so that you have to move past the border - * to be considered inside the rect - * nautilus_list_column_title_leave depends on this - */ - eel_rectangle_inset (&cell_rectangle, 1, 0); - - - if (eel_rectangle_contains (&cell_rectangle, x, y)) - return index; - } - - return -1; -} - -static int -in_resize_rect (GtkWidget *widget, int x, int y) -{ - /* return the index of the resize rect of a column we hit or -1 */ - - NautilusCList *parent_clist; - int index; - - parent_clist = NAUTILUS_CLIST (widget->parent); - - for (index = 0; index < parent_clist->columns; index++) { - /* hit testing for column resizing */ - GdkRectangle resize_rectangle; - - get_column_frame_at (widget, index, &resize_rectangle); - - eel_rectangle_inset (&resize_rectangle, 1, 0); - - resize_rectangle.x = resize_rectangle.x + resize_rectangle.width - DRAG_WIDTH / 2; - resize_rectangle.width = DRAG_WIDTH; - - if (eel_rectangle_contains (&resize_rectangle, x, y)) - return index; - } - - return -1; -} - -static void -show_hide_resize_cursor_if_needed (GtkWidget *widget, gboolean on) -{ - NautilusListColumnTitle *column_title; - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - - if (on == column_title->details->resize_cursor_on) - /* already set right */ - return; - - if (on) { - /* switch to a resize cursor */ - GdkCursor *cursor; - - cursor = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW); - gdk_window_set_cursor (widget->window, cursor); - gdk_cursor_destroy (cursor); - } else - /* restore to old cursor */ - gdk_window_set_cursor (widget->window, NULL); - - column_title->details->resize_cursor_on = on; -} - -static gboolean -track_prelight (GtkWidget *widget, int mouse_x, int mouse_y) -{ - NautilusListColumnTitle *column_title; - int over_column; - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - - /* see if we need to update the prelight state of a column */ - over_column = in_column_rect (widget, mouse_x, mouse_y); - - if (column_title->details->tracking_column_resize != -1) { - /* resizing a column, don't prelight */ - over_column = -1; - } - - if (column_title->details->tracking_column_press != -1) { - /* pressing a column, don't prelight */ - over_column = -1; - } - - if (column_title->details->tracking_column_prelight == over_column) { - /* no change */ - return FALSE; - } - - /* update state and tell callers to redraw */ - column_title->details->tracking_column_prelight = over_column; - - return TRUE; -} - -static gboolean -nautilus_list_column_title_motion (GtkWidget *widget, GdkEventMotion *event) -{ - NautilusListColumnTitle *column_title; - GtkWidget *parent_list; - int mouse_x, mouse_y; - gboolean title_update_needed; - - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - g_assert (NAUTILUS_IS_LIST (widget->parent)); - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - parent_list = GTK_WIDGET (widget->parent); - title_update_needed = FALSE; - - gdk_window_get_pointer (widget->window, &mouse_x, &mouse_y, NULL); - - if (column_title->details->tracking_column_resize != -1) { - /* we are currently tracking a column */ - if (column_title->details->last_tracking_x != mouse_x) { - /* mouse did move horizontally since last time */ - column_title->details->last_tracking_x = mouse_x; - EEL_INVOKE_METHOD - (NAUTILUS_LIST_CLASS, parent_list, - column_resize_track, - (parent_list, column_title->details->tracking_column_resize)); - title_update_needed = TRUE; - } - } else { - /* make sure we are showing the right cursor */ - show_hide_resize_cursor_if_needed (widget, - in_resize_rect (widget, mouse_x, mouse_y) != -1); - } - - /* see if we need to update the prelight state of a column */ - title_update_needed |= track_prelight (widget, mouse_x, mouse_y); - - if (title_update_needed) { - nautilus_list_column_title_queue_buffered_draw (widget); - } - - return TRUE; -} - -static gboolean -nautilus_list_column_title_leave (GtkWidget *widget, GdkEventCrossing *event) -{ - NautilusListColumnTitle *column_title; - - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - g_assert (NAUTILUS_IS_LIST (widget->parent)); - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - - /* see if we need to update the prelight state of a column */ - if (column_title->details->tracking_column_prelight != -1) { - column_title->details->tracking_column_prelight = -1; - gtk_widget_set_state (widget, GTK_STATE_NORMAL); - } - nautilus_list_column_title_queue_buffered_draw (widget); - return TRUE; -} - -static gboolean -nautilus_list_column_title_button_press (GtkWidget *widget, GdkEventButton *event) -{ - NautilusListColumnTitle *column_title; - GtkWidget *parent_list; - int grab_result; - - g_assert (event != NULL); - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - g_assert (NAUTILUS_IS_LIST (widget->parent)); - g_assert (event->type != GDK_BUTTON_PRESS - || NAUTILUS_LIST_COLUMN_TITLE(widget)->details->tracking_column_resize == -1); - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - parent_list = GTK_WIDGET (widget->parent); - - - if (event->type == GDK_BUTTON_PRESS) { - int resized_column; - int clicked_column; - - resized_column = in_resize_rect (widget, (int)event->x, (int)event->y); - clicked_column = in_column_rect (widget, (int)event->x, (int)event->y); - - if (resized_column != -1) { - GdkCursor *cursor; - - /* during the drag, use the resize cursor */ - cursor = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW); - - /* grab the pointer events so that we get them even when - * the mouse tracks out of the widget window - */ - grab_result = gdk_pointer_grab (widget->window, FALSE, - GDK_POINTER_MOTION_HINT_MASK - | GDK_BUTTON1_MOTION_MASK - | GDK_BUTTON_RELEASE_MASK, - NULL, cursor, event->time); - gdk_cursor_destroy (cursor); - - if (grab_result != 0) { - /* failed to grab the pointer, give up - * - * The grab results are not very well documented - * looks like they may be Success, GrabSuccess, AlreadyGrabbed - * or anything else the low level X calls in gdk_pointer_grab - * decide to return. - */ - return FALSE; - } - - /* set up new state */ - column_title->details->tracking_column_resize = resized_column; - column_title->details->tracking_column_prelight = -1; - - /* FIXME bugzilla.eazel.com 617: - * use a "resized" state here ? - */ - gtk_widget_set_state (widget, GTK_STATE_NORMAL); - - /* start column resize tracking */ - EEL_INVOKE_METHOD - (NAUTILUS_LIST_CLASS, parent_list, - column_resize_track_start, - (parent_list, resized_column)); - - return FALSE; - } - - if (clicked_column != -1) { - /* clicked a column, draw the pressed column title */ - column_title->details->tracking_column_prelight = -1; - column_title->details->tracking_column_press = clicked_column; - gtk_widget_set_state (widget, GTK_STATE_ACTIVE); - - /* grab the pointer events so that we get release events even when - * the mouse tracks out of the widget window - */ - grab_result = gdk_pointer_grab (widget->window, FALSE, - GDK_BUTTON_RELEASE_MASK, - NULL, NULL, event->time); - - if (grab_result != 0) { - /* failed to grab the pointer, give up */ - return FALSE; - } - - nautilus_list_column_title_queue_buffered_draw (widget); - } - - } - - return FALSE; -} - -static gboolean -nautilus_list_column_title_button_release (GtkWidget *widget, GdkEventButton *event) -{ - NautilusListColumnTitle *column_title; - GtkWidget *parent_list; - - g_assert (event != NULL); - g_assert (NAUTILUS_IS_LIST_COLUMN_TITLE (widget)); - g_assert (NAUTILUS_IS_LIST (widget->parent)); - - - column_title = NAUTILUS_LIST_COLUMN_TITLE(widget); - parent_list = GTK_WIDGET (widget->parent); - - /* let go of all the pointer events */ - if ((column_title->details->tracking_column_resize != -1 - || column_title->details->tracking_column_press != -1) - && gdk_pointer_is_grabbed ()) - gdk_pointer_ungrab (event->time); - - if (column_title->details->tracking_column_resize != -1) { - - /* end column resize tracking */ - EEL_INVOKE_METHOD - (NAUTILUS_LIST_CLASS, parent_list, - column_resize_track_end, - (parent_list, column_title->details->tracking_column_resize)); - column_title->details->tracking_column_resize = -1; - - } else if (column_title->details->tracking_column_press != -1) { - - /* column title press -- change the sort order */ - gtk_signal_emit_by_name (GTK_OBJECT (parent_list), "click_column", - column_title->details->tracking_column_press); - /* end press tracking */ - column_title->details->tracking_column_press = -1; - } - - track_prelight (widget, (int)event->x, (int)event->y); - gtk_widget_set_state (widget, - column_title->details->tracking_column_prelight != -1 ? - GTK_STATE_PRELIGHT : GTK_STATE_NORMAL); - - nautilus_list_column_title_queue_buffered_draw (widget); - - return FALSE; -} |