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-rw-r--r--widgets/e-reflow/e-reflow.c175
1 files changed, 166 insertions, 9 deletions
diff --git a/widgets/e-reflow/e-reflow.c b/widgets/e-reflow/e-reflow.c
index ce2e92e530..e9ff1b6eaa 100644
--- a/widgets/e-reflow/e-reflow.c
+++ b/widgets/e-reflow/e-reflow.c
@@ -32,6 +32,8 @@ static void e_reflow_realize (GnomeCanvasItem *item);
static void e_reflow_unrealize (GnomeCanvasItem *item);
static void e_reflow_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
int x, int y, int width, int height);
+static void e_reflow_update (GnomeCanvasItem *item, double affine[6], ArtSVP *clip_path, gint flags);
+static double e_reflow_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item);
static void _update_reflow ( EReflow *reflow );
static void _resize( GtkObject *object, gpointer data );
@@ -112,7 +114,9 @@ e_reflow_class_init (EReflowClass *klass)
item_class->event = e_reflow_event;
item_class->realize = e_reflow_realize;
item_class->unrealize = e_reflow_unrealize;
- /* item_class->draw = e_reflow_draw;*/
+ item_class->draw = e_reflow_draw;
+ item_class->update = e_reflow_update;
+ item_class->point = e_reflow_point;
}
static void
@@ -126,6 +130,8 @@ e_reflow_init (EReflow *reflow)
reflow->width = 10;
reflow->height = 10;
reflow->idle = 0;
+
+ reflow->column_drag = FALSE;
}
static void
@@ -214,6 +220,14 @@ e_reflow_unrealize (GnomeCanvasItem *item)
(* GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize) (item);
}
+static gint
+e_reflow_pick_line (EReflow *e_reflow, gint x)
+{
+ x += 6;
+ x /= e_reflow->column_width + 16;
+ return x;
+}
+
static gboolean
e_reflow_event (GnomeCanvasItem *item, GdkEvent *event)
{
@@ -249,8 +263,56 @@ e_reflow_event (GnomeCanvasItem *item, GdkEvent *event)
}
}
}
+ break;
+ case GDK_BUTTON_PRESS:
+ {
+ GdkEventButton *button = (GdkEventButton *) event;
+ int n_x;
+ n_x = button->x;
+ n_x += 3;
+ n_x %= (int)(e_reflow->column_width + 16);
+ if ( button->y >= 7 && button->y <= e_reflow->height - 7 && n_x < 4 ) {
+ e_reflow->which_column_dragged = e_reflow_pick_line(e_reflow, button->x);
+ e_reflow->start_x = button->x;
+ e_reflow->temp_column_width = e_reflow->column_width;
+ e_reflow->column_drag = TRUE;
+ gnome_canvas_item_request_update(item);
+ return TRUE;
+ }
+ }
+ break;
+ case GDK_BUTTON_RELEASE:
+ if (e_reflow->column_drag) {
+ GdkEventButton *button = (GdkEventButton *) event;
+ GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas));
+ e_reflow->temp_column_width = e_reflow->column_width +
+ (button->x - e_reflow->start_x)/(e_reflow->which_column_dragged - e_reflow_pick_line(e_reflow, adjustment->value));
+ if ( e_reflow->temp_column_width < 50 )
+ e_reflow->temp_column_width = 50;
+ gtk_adjustment_set_value(adjustment, adjustment->value + e_reflow_pick_line(e_reflow, adjustment->value) * (e_reflow->temp_column_width - e_reflow->column_width));
+ e_reflow->column_width = e_reflow->temp_column_width;
+ e_reflow->column_drag = FALSE;
+ _update_reflow(e_reflow);
+ gnome_canvas_item_request_update(item);
+ return TRUE;
+ }
+ break;
+ case GDK_MOTION_NOTIFY:
+ if (e_reflow->column_drag) {
+ double old_width = e_reflow->temp_column_width;
+ GdkEventMotion *motion = (GdkEventMotion *) event;
+ GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas));
+ e_reflow->temp_column_width = e_reflow->column_width +
+ (motion->x - e_reflow->start_x)/(e_reflow->which_column_dragged - e_reflow_pick_line(e_reflow, adjustment->value));
+ if (e_reflow->temp_column_width < 50)
+ e_reflow->temp_column_width = 50;
+ if (old_width != e_reflow->temp_column_width)
+ gnome_canvas_item_request_update(item);
+ return TRUE;
+ }
+ break;
default:
- break;
+ break;
}
if (GNOME_CANVAS_ITEM_CLASS( parent_class )->event)
@@ -275,7 +337,7 @@ e_reflow_add_item(EReflow *e_reflow, GnomeCanvasItem *item)
}
}
-#if 0
+
static void e_reflow_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
int x, int y, int width, int height)
{
@@ -283,17 +345,25 @@ static void e_reflow_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
gint running_width;
EReflow *e_reflow = E_REFLOW(item);
int i;
+ double column_width;
if (GNOME_CANVAS_ITEM_CLASS(parent_class)->draw)
GNOME_CANVAS_ITEM_CLASS(parent_class)->draw (item, drawable, x, y, width, height);
-
- running_width = 7 + e_reflow->column_width + 7;
+ column_width = e_reflow->column_width;
+ running_width = 7 + column_width + 7;
x_rect = running_width;
y_rect = 7;
width_rect = 2;
height_rect = e_reflow->height - 14;
- for (i = 0; i < e_reflow->column_count - 1; i++) {
+ /* Compute first column to draw. */
+ i = x;
+ i /= column_width + 16;
+ running_width += i * (column_width + 16);
+
+ for ( ; i < e_reflow->column_count - 1; i++) {
+ if ( running_width > x + width )
+ break;
x_rect = running_width;
gtk_paint_flat_box(GTK_WIDGET(item->canvas)->style,
drawable,
@@ -303,13 +373,94 @@ static void e_reflow_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
GTK_WIDGET(item->canvas),
"reflow",
x_rect - x,
- y_rect - x,
+ y_rect - y,
width_rect,
height_rect);
- running_width += 2 + 7 + e_reflow->column_width + 7;
+ running_width += 2 + 7 + column_width + 7;
+ }
+ if (e_reflow->column_drag) {
+ int start_line = e_reflow_pick_line(e_reflow,
+ gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas))->value);
+ i = x - start_line * (column_width + 16);
+ running_width = start_line * (column_width + 16);
+ column_width = e_reflow->temp_column_width;
+ running_width -= start_line * (column_width + 16);
+ i += start_line * (column_width + 16);
+ running_width += 7 + column_width + 7;
+ x_rect = running_width;
+ y_rect = 7;
+ width_rect = 2;
+ height_rect = e_reflow->height - 14;
+
+ /* Compute first column to draw. */
+ i /= column_width + 16;
+ running_width += i * (column_width + 16);
+
+ for ( ; i < e_reflow->column_count - 1; i++) {
+ if ( running_width > x + width )
+ break;
+ x_rect = running_width;
+ gdk_draw_rectangle(drawable,
+ GTK_WIDGET(item->canvas)->style->fg_gc[GTK_STATE_NORMAL],
+ TRUE,
+ x_rect - x,
+ y_rect - y,
+ width_rect - 1,
+ height_rect - 1);
+ running_width += 2 + 7 + column_width + 7;
+ }
+ }
+}
+
+static void
+e_reflow_update (GnomeCanvasItem *item, double affine[6], ArtSVP *clip_path, gint flags)
+{
+ double x0, x1, y0, y1;
+
+ if (GNOME_CANVAS_ITEM_CLASS(parent_class)->update)
+ GNOME_CANVAS_ITEM_CLASS(parent_class)->update (item, affine, clip_path, flags);
+
+ x0 = item->x1;
+ y0 = item->y1;
+ x1 = item->x2;
+ y1 = item->y2;
+ if ( x0 > 0 )
+ x0 = 0;
+ if ( y0 > 0 )
+ y0 = 0;
+ if ( x1 < E_REFLOW(item)->width )
+ x1 = E_REFLOW(item)->width;
+ if ( x1 < E_REFLOW(item)->height )
+ x1 = E_REFLOW(item)->height;
+
+ gnome_canvas_update_bbox(item, x0, y0, x1, y1);
+}
+
+static double
+e_reflow_point (GnomeCanvasItem *item,
+ double x, double y, int cx, int cy,
+ GnomeCanvasItem **actual_item)
+{
+ EReflow *e_reflow = E_REFLOW(item);
+ double distance = 1;
+
+ if (GNOME_CANVAS_ITEM_CLASS(parent_class)->point)
+ distance = GNOME_CANVAS_ITEM_CLASS(parent_class)->point (item, x, y, cx, cy, actual_item);
+ if (*actual_item)
+ return 0;
+
+ if (y >= 7 && y <= e_reflow->height - 7) {
+ int n_x;
+ n_x = x;
+ n_x += 3;
+ n_x %= (int)(e_reflow->column_width + 16);
+ if (n_x < 4) {
+ *actual_item = item;
+ return 0;
+ }
}
+ return distance;
}
-#endif
static void
_reflow( EReflow *e_reflow )
@@ -380,6 +531,9 @@ _update_reflow( EReflow *e_reflow )
running_height = 7;
list = e_reflow->items;
+ gtk_object_set (GTK_OBJECT(list->data),
+ "width", e_reflow->column_width,
+ NULL);
gtk_object_get (GTK_OBJECT(list->data),
"height", &item_height,
NULL);
@@ -391,6 +545,9 @@ _update_reflow( EReflow *e_reflow )
list = g_list_next(list);
for( ; list; list = g_list_next(list)) {
+ gtk_object_set (GTK_OBJECT(list->data),
+ "width", e_reflow->column_width,
+ NULL);
gtk_object_get (GTK_OBJECT(list->data),
"height", &item_height,
NULL);
generated by cgit (git 2.34.1) at 2024-12-04 10:51:57 +0800