diff options
Diffstat (limited to 'widgets/e-table-header-item.c')
| -rw-r--r-- | widgets/e-table-header-item.c | 793 |
1 files changed, 0 insertions, 793 deletions
diff --git a/widgets/e-table-header-item.c b/widgets/e-table-header-item.c deleted file mode 100644 index 7cea9ae7a0..0000000000 --- a/widgets/e-table-header-item.c +++ /dev/null @@ -1,793 +0,0 @@ -/* - * E-table-column-view.c: A canvas item based view of the ETableColumn. - * - * Author: - * Miguel de Icaza (miguel@gnu.org) - * - * Copyright 1999, Helix Code, Inc. - */ -#include <config.h> -#include <gtk/gtksignal.h> -#include <gtk/gtkdnd.h> -#include <libgnomeui/gnome-canvas.h> -#include <libgnomeui/gnome-canvas-util.h> -#include <libgnomeui/gnome-canvas-polygon.h> -#include <libgnomeui/gnome-canvas-rect-ellipse.h> -#include "e-table-header.h" -#include "e-table-header-item.h" -#include "e-table-col-dnd.h" -#include "e-cursors.h" - -#include "add-col.xpm" -#include "remove-col.xpm" - -/* Padding above and below of the string in the header display */ -#define PADDING 4 - -/* Defines the tolerance for proximity of the column division to the cursor position */ -#define TOLERANCE 2 - -#define ETHI_RESIZING(x) ((x)->resize_col != -1) - -#define PARENT_OBJECT_TYPE gnome_canvas_item_get_type () - -#define ELEMENTS(x) (sizeof (x) / sizeof (x[0])) - -static GnomeCanvasItemClass *ethi_parent_class; - -/* - * DnD icons - */ -static GdkColormap *dnd_colormap; -static GdkPixmap *remove_col_pixmap, *remove_col_mask; -static GdkPixmap *add_col_pixmap, *add_col_mask; - -enum { - ARG_0, - ARG_TABLE_HEADER, - ARG_TABLE_X, - ARG_TABLE_Y, - ARG_TABLE_FONTSET -}; - -static GtkTargetEntry ethi_drag_types [] = { - { TARGET_ETABLE_COL_TYPE, 0, TARGET_ETABLE_COL_HEADER }, -}; - -static GtkTargetEntry ethi_drop_types [] = { - { TARGET_ETABLE_COL_TYPE, 0, TARGET_ETABLE_COL_HEADER }, -}; - -static void -ethi_destroy (GtkObject *object) -{ - ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (object); - - gtk_object_unref (GTK_OBJECT (ethi->eth)); - - if (GTK_OBJECT_CLASS (ethi_parent_class)->destroy) - (*GTK_OBJECT_CLASS (ethi_parent_class)->destroy) (object); -} - -static void -ethi_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags) -{ - ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item); - - if (GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->update) - (*GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->update)(item, affine, clip_path, flags); - - item->x1 = ethi->x1; - item->y1 = ethi->y1; - item->x2 = ethi->x1 + ethi->width; - item->y2 = ethi->y1 + ethi->height; - - gnome_canvas_group_child_bounds (GNOME_CANVAS_GROUP (item->parent), item); -} - -static void -ethi_font_load (ETableHeaderItem *ethi, char *font) -{ - if (ethi->font) - gdk_font_unref (ethi->font); - - ethi->font = gdk_fontset_load (font); - if (ethi->font == NULL) - ethi->font = gdk_font_load ("fixed"); - - ethi->height = ethi->font->ascent + ethi->font->descent + PADDING; -} - -static void -ethi_drop_table_header (ETableHeaderItem *ethi) -{ - GtkObject *header; - - if (!ethi->eth) - return; - - header = GTK_OBJECT (ethi->eth); - gtk_signal_disconnect (header, ethi->structure_change_id); - gtk_signal_disconnect (header, ethi->dimension_change_id); - - gtk_object_unref (header); - ethi->eth = NULL; - ethi->width = 0; -} - -static void -structure_changed (ETableHeader *header, ETableHeaderItem *ethi) -{ - ethi->width = e_table_header_total_width (header); - - ethi_update (GNOME_CANVAS_ITEM (ethi), NULL, NULL, 0); -} - -static void -dimension_changed (ETableHeader *header, int col, ETableHeaderItem *ethi) -{ - ethi->width = e_table_header_total_width (header); - - ethi_update (GNOME_CANVAS_ITEM (ethi), NULL, NULL, 0); -} - -static void -ethi_add_table_header (ETableHeaderItem *ethi, ETableHeader *header) -{ - ethi->eth = header; - gtk_object_ref (GTK_OBJECT (ethi->eth)); - ethi->width = e_table_header_total_width (header); - - ethi->structure_change_id = gtk_signal_connect ( - GTK_OBJECT (header), "structure_change", - GTK_SIGNAL_FUNC(structure_changed), ethi); - ethi->dimension_change_id = gtk_signal_connect ( - GTK_OBJECT (header), "dimension_change", - GTK_SIGNAL_FUNC(dimension_changed), ethi); -} - -static void -ethi_set_arg (GtkObject *o, GtkArg *arg, guint arg_id) -{ - GnomeCanvasItem *item; - ETableHeaderItem *ethi; - - item = GNOME_CANVAS_ITEM (o); - ethi = E_TABLE_HEADER_ITEM (o); - - switch (arg_id){ - case ARG_TABLE_HEADER: - ethi_drop_table_header (ethi); - ethi_add_table_header (ethi, GTK_VALUE_POINTER (*arg)); - break; - - case ARG_TABLE_X: - ethi->x1 = GTK_VALUE_INT (*arg); - break; - - case ARG_TABLE_Y: - ethi->y1 = GTK_VALUE_INT (*arg); - break; - - case ARG_TABLE_FONTSET: - ethi_font_load (ethi, GTK_VALUE_STRING (*arg)); - break; - - } - ethi_update (item, NULL, NULL, 0); -} - -static int -ethi_find_col_by_x (ETableHeaderItem *ethi, int x) -{ - const int cols = e_table_header_count (ethi->eth); - int x1 = ethi->x1; - int col; - - if (x < x1) - return -1; - - for (col = 0; col < cols; col++){ - ETableCol *ecol = e_table_header_get_column (ethi->eth, col); - - if ((x >= x1) && (x <= x1 + ecol->width)) - return col; - - x1 += ecol->width; - } - return -1; -} - -static void -ethi_remove_drop_marker (ETableHeaderItem *ethi) -{ - if (ethi->drag_mark == -1) - return; - - ethi->drag_mark = -1; - gtk_object_destroy (GTK_OBJECT (ethi->drag_mark_item)); - ethi->drag_mark_item = NULL; -} - -static void -ethi_add_drop_marker (ETableHeaderItem *ethi, int col) -{ - GnomeCanvasPoints *points; - int x; - - if (ethi->drag_mark == col) - return; - - if (ethi->drag_mark_item) - gtk_object_destroy (GTK_OBJECT (ethi->drag_mark_item)); - - ethi->drag_mark = col; - - ethi->drag_mark_item = gnome_canvas_item_new ( - GNOME_CANVAS_GROUP (GNOME_CANVAS_ITEM (ethi)->canvas->root), - gnome_canvas_group_get_type (), - "x", 0, - "y", 0, - NULL); - - points = gnome_canvas_points_new (3); - - x = e_table_header_col_diff (ethi->eth, 0, col); - - points->coords [0] = ethi->x1 + x - 5; - points->coords [1] = ethi->y1; - points->coords [2] = points->coords [0] + 10; - points->coords [3] = points->coords [1]; - points->coords [4] = ethi->x1 + x; - points->coords [5] = ethi->y1 + 5; - - gnome_canvas_item_new ( - GNOME_CANVAS_GROUP (ethi->drag_mark_item), - gnome_canvas_polygon_get_type (), - "points", points, - "fill_color", "red", - NULL); - - points->coords [0] --; - points->coords [1] += ethi->height - 1; - points->coords [3] = points->coords [1]; - points->coords [5] = points->coords [1] - 6; - - gnome_canvas_item_new ( - GNOME_CANVAS_GROUP (ethi->drag_mark_item), - gnome_canvas_polygon_get_type (), - "points", points, - "fill_color", "red", - NULL); - - gnome_canvas_points_unref (points); -} - -#define gray50_width 2 -#define gray50_height 2 -static char gray50_bits [] = { - 0x02, 0x01, }; - -static void -ethi_add_destroy_marker (ETableHeaderItem *ethi) -{ - double x1; - - if (ethi->remove_item) - gtk_object_destroy (GTK_OBJECT (ethi->remove_item)); - - if (!ethi->stipple) - ethi->stipple = gdk_bitmap_create_from_data (NULL, gray50_bits, gray50_width, gray50_height); - - x1 = ethi->x1 + (double) e_table_header_col_diff (ethi->eth, 0, ethi->drag_col); - ethi->remove_item = gnome_canvas_item_new ( - GNOME_CANVAS_GROUP (GNOME_CANVAS_ITEM (ethi)->canvas->root), - gnome_canvas_rect_get_type (), - "x1", x1 + 1, - "y1", (double) ethi->y1 + 1, - "x2", (double) x1 + e_table_header_col_diff (ethi->eth, ethi->drag_col, ethi->drag_col+1) - 2, - "y2", (double) ethi->y1 + ethi->height - 2, - "fill_color", "red", - "fill_stipple", ethi->stipple, - NULL); -} - -static void -ethi_remove_destroy_marker (ETableHeaderItem *ethi) -{ - if (!ethi->remove_item) - return; - - gtk_object_destroy (GTK_OBJECT (ethi->remove_item)); - ethi->remove_item = NULL; -} - -static gboolean -ethi_drag_motion (GtkObject *canvas, GdkDragContext *context, - gint x, gint y, guint time, - ETableHeaderItem *ethi) -{ - - if ((x >= ethi->x1) && (x <= (ethi->x1 + ethi->width)) && - (y >= ethi->y1) && (y <= (ethi->y1 + ethi->height))){ - int col; - - col = ethi_find_col_by_x (ethi, x); - - if (col != -1){ - ethi_remove_destroy_marker (ethi); - ethi_add_drop_marker (ethi, col); - } else { - ethi_remove_drop_marker (ethi); - ethi_add_destroy_marker (ethi); - } - } else { - ethi_remove_drop_marker (ethi); - ethi_add_destroy_marker (ethi); - } - - gdk_drag_status (context, context->suggested_action, time); - - return TRUE; -} - -static void -ethi_drag_end (GtkWidget *canvas, GdkDragContext *context, ETableHeaderItem *ethi) -{ - ethi_remove_drop_marker (ethi); - ethi_remove_destroy_marker (ethi); - ethi->drag_col = -1; -} - -static void -ethi_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time, ETableHeaderItem *ethi) -{ - ethi_remove_drop_marker (ethi); - ethi_add_destroy_marker (ethi); -} - -static void -ethi_realize (GnomeCanvasItem *item) -{ - ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item); - GdkWindow *window; - GdkColor c; - - if (GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)-> realize) - (*GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->realize)(item); - - window = GTK_WIDGET (item->canvas)->window; - - ethi->gc = gdk_gc_new (window); - gnome_canvas_get_color (item->canvas, "black", &c); - gdk_gc_set_foreground (ethi->gc, &c); - - ethi->normal_cursor = gdk_cursor_new (GDK_ARROW); - - if (!ethi->font) - ethi_font_load (ethi, "fixed"); - - /* - * Now, configure DnD - */ - gtk_drag_dest_set (GTK_WIDGET (item->canvas), GTK_DEST_DEFAULT_ALL, - ethi_drop_types, ELEMENTS (ethi_drop_types), - GDK_ACTION_MOVE); - - ethi->drag_motion_id = gtk_signal_connect ( - GTK_OBJECT (item->canvas), "drag_motion", - GTK_SIGNAL_FUNC (ethi_drag_motion), ethi); - - ethi->drag_leave_id = gtk_signal_connect ( - GTK_OBJECT (item->canvas), "drag_leave", - GTK_SIGNAL_FUNC (ethi_drag_leave), ethi); - - ethi->drag_end_id = gtk_signal_connect ( - GTK_OBJECT (item->canvas), "drag_end", - GTK_SIGNAL_FUNC (ethi_drag_end), ethi); -} - -static void -ethi_unrealize (GnomeCanvasItem *item) -{ - ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item); - - gdk_gc_unref (ethi->gc); - ethi->gc = NULL; - - gdk_cursor_destroy (ethi->normal_cursor); - ethi->normal_cursor = NULL; - - gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_motion_id); - gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_end_id); - gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_leave_id); - - if (ethi->stipple){ - gdk_bitmap_unref (ethi->stipple); - ethi->stipple = NULL; - } - - if (GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->unrealize) - (*GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->unrealize)(item); -} - -static void -draw_button (ETableHeaderItem *ethi, ETableCol *col, - GdkDrawable *drawable, GdkGC *gc, GtkStyle *style, - int x, int y, int width, int height) -{ - GdkRectangle clip; - int xtra; - - gdk_draw_rectangle ( - drawable, gc, TRUE, - x + 1, y + 1, width - 2, height -2); - - gtk_draw_shadow ( - style, drawable, - GTK_STATE_NORMAL, GTK_SHADOW_OUT, - x , y, width, height); - - clip.x = x + 2; - clip.y = y + 2; - clip.width = width - 4; - clip.height = ethi->height; - - gdk_gc_set_clip_rectangle (ethi->gc, &clip); - - /* Center the thing */ - xtra = (clip.width - gdk_string_measure (ethi->font, col->text))/2; - - if (xtra < 0) - xtra = 0; - - /* Skip over border */ - x += xtra + 2; - - gdk_draw_text ( - drawable, ethi->font, - ethi->gc, x, y + ethi->height - PADDING, - col->text, strlen (col->text)); -} - -static void -ethi_draw (GnomeCanvasItem *item, GdkDrawable *drawable, int x, int y, int width, int height) -{ - ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item); - GnomeCanvas *canvas = item->canvas; - GdkGC *gc; - const int cols = e_table_header_count (ethi->eth); - int x1, x2; - int col; - -#if 0 - printf ("My coords are: %g %g %g %g\n", - item->x1, item->y1, item->x2, item->y2); -#endif - x1 = x2 = ethi->x1; - for (col = 0; col < cols; col++, x1 = x2){ - ETableCol *ecol = e_table_header_get_column (ethi->eth, col); - int col_width; - - if (col == ethi->resize_col) - col_width = ethi->resize_width; - else - col_width = ecol->width; - - x2 += col_width; - - if (x1 > (x + width)) - break; - - if (x2 < x) - continue; - - gc = GTK_WIDGET (canvas)->style->bg_gc [GTK_STATE_ACTIVE]; - - draw_button (ethi, ecol, drawable, gc, - GTK_WIDGET (canvas)->style, - x1 - x, ethi->y1 - y, col_width, ethi->height); - } -} - -static double -ethi_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, - GnomeCanvasItem **actual_item) -{ - *actual_item = item; - return 0.0; -} - -/* - * is_pointer_on_division: - * - * Returns whether @pos is a column header division; If @the_total is not NULL, - * then the actual position is returned here. If @return_ecol is not NULL, - * then the ETableCol that actually contains this point is returned here - */ -static gboolean -is_pointer_on_division (ETableHeaderItem *ethi, int pos, int *the_total, int *return_col) -{ - const int cols = e_table_header_count (ethi->eth); - int col, total; - - total = 0; - for (col = 0; col < cols; col++){ - ETableCol *ecol = e_table_header_get_column (ethi->eth, col); - - total += ecol->width; - - if ((total - TOLERANCE < pos ) && (pos < total + TOLERANCE)){ - if (return_col) - *return_col = col; - if (the_total) - *the_total = total; - - return TRUE; - } - - if (total > pos + TOLERANCE) - return FALSE; - } - - return FALSE; -} - -#define convert(c,sx,sy,x,y) gnome_canvas_w2c (c,sx,sy,x,y) - -static void -set_cursor (ETableHeaderItem *ethi, int pos) -{ - GtkWidget *canvas = GTK_WIDGET (GNOME_CANVAS_ITEM (ethi)->canvas); - - /* We might be invoked before we are realized */ - if (!canvas->window) - return; - - if (is_pointer_on_division (ethi, pos, NULL, NULL)) - e_cursor_set (canvas->window, E_CURSOR_SIZE_X); - else - e_cursor_set (canvas->window, E_CURSOR_ARROW); -} - -static void -ethi_request_redraw (ETableHeaderItem *ethi) -{ - GnomeCanvas *canvas = GNOME_CANVAS_ITEM (ethi)->canvas; - - /* - * request a redraw - */ - gnome_canvas_request_redraw ( - canvas, ethi->x1, ethi->y1, ethi->x1 + ethi->width, ethi->x1 + ethi->height); -} - -static void -ethi_end_resize (ETableHeaderItem *ethi, int new_size) -{ - e_table_header_set_size (ethi->eth, ethi->resize_col, new_size); - - ethi->resize_col = -1; - ethi_request_redraw (ethi); -} - -static gboolean -ethi_maybe_start_drag (ETableHeaderItem *ethi, GdkEventMotion *event) -{ - if (!ethi->maybe_drag) - return FALSE; - - if (MAX (abs (ethi->click_x - event->x), - abs (ethi->click_y - event->y)) <= 3) - return FALSE; - - return TRUE; -} - -static void -ethi_start_drag (ETableHeaderItem *ethi, GdkEvent *event) -{ - GtkWidget *widget = GTK_WIDGET (GNOME_CANVAS_ITEM (ethi)->canvas); - GtkTargetList *list; - GdkDragContext *context; - - ethi->drag_col = ethi_find_col_by_x (ethi, event->motion.x); - if (ethi->drag_col == -1) - return; - - list = gtk_target_list_new (ethi_drag_types, ELEMENTS (ethi_drag_types)); - context = gtk_drag_begin (widget, list, GDK_ACTION_MOVE, 1, event); - ethi->maybe_drag = FALSE; -} - -/* - * Handles the events on the ETableHeaderItem, particularly it handles resizing - */ -static int -ethi_event (GnomeCanvasItem *item, GdkEvent *e) -{ - ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item); - GnomeCanvas *canvas = item->canvas; - const gboolean resizing = ETHI_RESIZING (ethi); - int x, y, start, col; - - switch (e->type){ - case GDK_ENTER_NOTIFY: - convert (canvas, e->crossing.x, e->crossing.y, &x, &y); - set_cursor (ethi, x); - break; - - case GDK_LEAVE_NOTIFY: - e_cursor_set (GTK_WIDGET (canvas)->window, E_CURSOR_ARROW); - break; - - case GDK_MOTION_NOTIFY: - convert (canvas, e->motion.x, e->motion.y, &x, &y); - if (resizing){ - int new_width; - - if (ethi->resize_guide == NULL){ - /* Quick hack until I actually bind the views */ - ethi->resize_guide = GINT_TO_POINTER (1); - gnome_canvas_item_grab (item, - GDK_POINTER_MOTION_MASK | - GDK_BUTTON_RELEASE_MASK, - e_cursor_get (E_CURSOR_SIZE_X), - e->button.time); - } - - new_width = x - ethi->resize_start_pos; - if (new_width <= 0) - break; - - if (new_width < ethi->resize_min_width) - break; - - ethi_request_redraw (ethi); - - ethi->resize_width = new_width; - e_table_header_set_size (ethi->eth, ethi->resize_col, ethi->resize_width); - - ethi_request_redraw (ethi); - } else if (ethi_maybe_start_drag (ethi, &e->motion)){ - ethi_start_drag (ethi, e); - } else - set_cursor (ethi, x); - break; - - case GDK_BUTTON_PRESS: - convert (canvas, e->button.x, e->button.y, &x, &y); - - if (is_pointer_on_division (ethi, x, &start, &col)){ - ETableCol *ecol; - - /* - * Record the important bits. - * - * By setting resize_pos to a non -1 value, - * we know that we are being resized (used in the - * other event handlers). - */ - ecol = e_table_header_get_column (ethi->eth, col); - - if (!ecol->resizeable) - break; - ethi->resize_col = col; - ethi->resize_width = ecol->width; - ethi->resize_start_pos = start - ecol->width; - ethi->resize_min_width = ecol->min_width; - } else { - if (e->button.button == 1){ - ethi->click_x = e->button.x; - ethi->click_y = e->button.y; - ethi->maybe_drag = TRUE; - } - } - break; - - case GDK_2BUTTON_PRESS: - if (!resizing) - break; - - if (e->button.button != 1) - break; - break; - - case GDK_BUTTON_RELEASE: { - gboolean needs_ungrab = FALSE; - - if (ethi->resize_col != -1){ - needs_ungrab = (ethi->resize_guide != NULL); - ethi_end_resize (ethi, ethi->resize_width); - } - if (needs_ungrab) - gnome_canvas_item_ungrab (item, e->button.time); - - ethi->maybe_drag = FALSE; - break; - } - - default: - return FALSE; - } - return TRUE; -} - -static void -ethi_class_init (GtkObjectClass *object_class) -{ - GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class; - - ethi_parent_class = gtk_type_class (PARENT_OBJECT_TYPE); - - object_class->destroy = ethi_destroy; - object_class->set_arg = ethi_set_arg; - - item_class->update = ethi_update; - item_class->realize = ethi_realize; - item_class->unrealize = ethi_unrealize; - item_class->draw = ethi_draw; - item_class->point = ethi_point; - item_class->event = ethi_event; - - gtk_object_add_arg_type ("ETableHeaderItem::ETableHeader", GTK_TYPE_POINTER, - GTK_ARG_WRITABLE, ARG_TABLE_HEADER); - gtk_object_add_arg_type ("ETableHeaderItem::x", GTK_TYPE_INT, - GTK_ARG_WRITABLE, ARG_TABLE_X); - gtk_object_add_arg_type ("ETableHeaderItem::y", GTK_TYPE_INT, - GTK_ARG_WRITABLE, ARG_TABLE_Y); - gtk_object_add_arg_type ("ETableHeaderItem::fontset", GTK_TYPE_STRING, - GTK_ARG_WRITABLE, ARG_TABLE_FONTSET); - - /* - * Create our pixmaps for DnD - */ - dnd_colormap = gtk_widget_get_default_colormap (); - remove_col_pixmap = gdk_pixmap_colormap_create_from_xpm_d ( - NULL, dnd_colormap, - &remove_col_mask, NULL, remove_col_xpm); - - add_col_pixmap = gdk_pixmap_colormap_create_from_xpm_d ( - NULL, dnd_colormap, - &add_col_mask, NULL, add_col_xpm); -} - -static void -ethi_init (GnomeCanvasItem *item) -{ - ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item); - - ethi->resize_col = -1; - - item->x1 = 0; - item->y1 = 0; - item->x2 = 0; - item->y2 = 0; - - ethi->drag_col = -1; - ethi->drag_mark = -1; -} - -GtkType -e_table_header_item_get_type (void) -{ - static GtkType type = 0; - - if (!type){ - GtkTypeInfo info = { - "ETableHeaderItem", - sizeof (ETableHeaderItem), - sizeof (ETableHeaderItemClass), - (GtkClassInitFunc) ethi_class_init, - (GtkObjectInitFunc) ethi_init, - NULL, /* reserved 1 */ - NULL, /* reserved 2 */ - (GtkClassInitFunc) NULL - }; - - type = gtk_type_unique (PARENT_OBJECT_TYPE, &info); - } - - return type; -} - |