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-rw-r--r--widgets/table/e-table-item.c255
1 files changed, 255 insertions, 0 deletions
diff --git a/widgets/table/e-table-item.c b/widgets/table/e-table-item.c
index e494e5ed2b..3a4d98bf91 100644
--- a/widgets/table/e-table-item.c
+++ b/widgets/table/e-table-item.c
@@ -1714,3 +1714,258 @@ e_table_item_leave_edit (ETableItem *eti)
eti->edit_ctx = NULL;
}
+typedef struct {
+ ETableItem *item;
+ int rows_printed;
+} ETableItemPrintContext;
+
+static gdouble *
+e_table_item_calculate_print_widths (ETableHeader *eth, gdouble width)
+{
+ int i;
+ double extra;
+ double expansion;
+ int last_resizable = -1;
+ gdouble scale = 300.0L / 70.0L;
+ gdouble *widths = g_new(gdouble, e_table_header_count(eth));
+ /* - 1 to account for the last pixel border. */
+ extra = width - 1;
+ expansion = 0;
+ for (i = 0; i < eth->col_count; i++) {
+ extra -= eth->columns[i]->min_width * scale;
+ if (eth->columns[i]->resizeable && eth->columns[i]->expansion > 0)
+ last_resizable = i;
+ expansion += eth->columns[i]->resizeable ? eth->columns[i]->expansion : 0;
+ widths[i] = eth->columns[i]->min_width * scale;
+ }
+ for (i = 0; i <= last_resizable; i++) {
+ widths[i] += extra * (eth->columns[i]->resizeable ? eth->columns[i]->expansion : 0)/expansion;
+ }
+
+ return widths;
+}
+
+static gdouble
+eti_printed_row_height (ETableItem *item, gdouble *widths, GnomePrintContext *context, gint row)
+{
+ int col;
+ int cols = item->cols;
+ gdouble height = 0;
+ for (col = 0; col < cols; col++) {
+ ETableCol *ecol = e_table_header_get_column (item->header, col);
+ ECellView *ecell_view = item->cell_views [col];
+ gdouble this_height = e_cell_print_height (ecell_view, context, ecol->col_idx, col, row,
+ widths[col] - 1);
+ if (this_height > height)
+ height = this_height;
+ }
+ return height;
+}
+
+#define CHECK(x) if((x) == -1) return -1;
+
+static gint
+gp_draw_rect (GnomePrintContext *context, gdouble x, gdouble y, gdouble width, gdouble height)
+{
+ CHECK(gnome_print_moveto(context, x, y));
+ CHECK(gnome_print_lineto(context, x + width, y));
+ CHECK(gnome_print_lineto(context, x + width, y - height));
+ CHECK(gnome_print_lineto(context, x, y - height));
+ CHECK(gnome_print_lineto(context, x, y));
+ return gnome_print_fill(context);
+}
+
+static void
+e_table_item_print_page (EPrintable *ep,
+ GnomePrintContext *context,
+ gdouble width,
+ gdouble height,
+ gboolean quantize,
+ ETableItemPrintContext *itemcontext)
+{
+ ETableItem *item = itemcontext->item;
+ const int rows = item->rows;
+ const int cols = item->cols;
+ int rows_printed = itemcontext->rows_printed;
+ gdouble *widths;
+ int row, col;
+ gdouble yd = height;
+
+ widths = e_table_item_calculate_print_widths (itemcontext->item->header, width);
+
+ /*
+ * Draw cells
+ */
+ if (item->draw_grid){
+ gp_draw_rect(context, 0, yd, width, 1);
+ }
+ yd--;
+
+ for (row = rows_printed; row < rows; row++){
+ gdouble xd = 0, row_height;
+
+ row_height = eti_printed_row_height(item, widths, context, row);
+ if (quantize) {
+ if (yd - row_height - 1 < 0 && row != rows_printed) {
+ break;
+ }
+ } else {
+ if (yd < 0) {
+ break;
+ }
+ }
+
+ for (col = 0; col < cols; col++){
+ ETableCol *ecol = e_table_header_get_column (item->header, col);
+ ECellView *ecell_view = item->cell_views [col];
+
+ if (gnome_print_gsave(context) == -1)
+ /* FIXME */;
+ if (gnome_print_translate(context, xd, yd - row_height) == -1)
+ /* FIXME */;
+
+ if (gnome_print_moveto(context, 0, 0) == -1)
+ /* FIXME */;
+ if (gnome_print_lineto(context, widths[col] - 1, 0) == -1)
+ /* FIXME */;
+ if (gnome_print_lineto(context, widths[col] - 1, row_height) == -1)
+ /* FIXME */;
+ if (gnome_print_lineto(context, 0, row_height) == -1)
+ /* FIXME */;
+ if (gnome_print_lineto(context, 0, 0) == -1)
+ /* FIXME */;
+ if (gnome_print_clip(context) == -1)
+ /* FIXME */;
+
+ e_cell_print (ecell_view, context, ecol->col_idx, col, row,
+ widths[col] - 1, row_height);
+
+ if (gnome_print_grestore(context) == -1)
+ /* FIXME */;
+
+ xd += widths[col];
+ }
+ yd -= row_height;
+
+ if (item->draw_grid){
+ gp_draw_rect(context, 0, yd, width, 1);
+ }
+ yd--;
+ }
+
+ itemcontext->rows_printed = row;
+
+ if (item->draw_grid){
+ gdouble xd = 0;
+
+ for (col = 0; col < cols; col++){
+ gp_draw_rect(context, xd, height, 1, height - yd);
+
+ xd += widths[col];
+ }
+ gp_draw_rect(context, xd, height, 1, height - yd);
+ }
+
+ g_free (widths);
+}
+
+static gboolean
+e_table_item_data_left (EPrintable *ep,
+ ETableItemPrintContext *itemcontext)
+{
+ ETableItem *item = itemcontext->item;
+ int rows_printed = itemcontext->rows_printed;
+
+ gtk_signal_emit_stop_by_name(GTK_OBJECT(ep), "data_left");
+ return rows_printed < item->rows;
+}
+
+static void
+e_table_item_reset (EPrintable *ep,
+ ETableItemPrintContext *itemcontext)
+{
+ itemcontext->rows_printed = 0;
+}
+
+static gdouble
+e_table_item_height (EPrintable *ep,
+ GnomePrintContext *context,
+ gdouble width,
+ gdouble max_height,
+ ETableItemPrintContext *itemcontext)
+{
+ ETableItem *item = itemcontext->item;
+ const int rows = item->rows;
+ int rows_printed = itemcontext->rows_printed;
+ gdouble *widths;
+ int row;
+ gdouble yd = 0;
+
+ widths = e_table_item_calculate_print_widths (itemcontext->item->header, width);
+
+ /*
+ * Draw cells
+ */
+ yd++;
+
+ for (row = rows_printed; row < rows; row++){
+ gdouble row_height;
+
+ row_height = eti_printed_row_height(item, widths, context, row);
+ if (max_height != -1 && yd + row_height + 1 > max_height && row != rows_printed) {
+ break;
+ }
+
+ yd += row_height;
+
+ yd++;
+ }
+
+ g_free (widths);
+
+ gtk_signal_emit_stop_by_name(GTK_OBJECT(ep), "height");
+ return yd;
+}
+
+static void
+e_table_item_printable_destroy (GtkObject *object,
+ ETableItemPrintContext *itemcontext)
+{
+ gtk_object_unref(GTK_OBJECT(itemcontext->item));
+ g_free(itemcontext);
+}
+
+EPrintable *
+e_table_item_get_printable (ETableItem *item)
+{
+ EPrintable *printable = e_printable_new();
+ ETableItemPrintContext *itemcontext;
+
+ itemcontext = g_new(ETableItemPrintContext, 1);
+ itemcontext->item = item;
+ gtk_object_ref(GTK_OBJECT(item));
+ itemcontext->rows_printed = 0;
+
+ gtk_signal_connect (GTK_OBJECT(printable),
+ "print_page",
+ GTK_SIGNAL_FUNC(e_table_item_print_page),
+ itemcontext);
+ gtk_signal_connect (GTK_OBJECT(printable),
+ "data_left",
+ GTK_SIGNAL_FUNC(e_table_item_data_left),
+ itemcontext);
+ gtk_signal_connect (GTK_OBJECT(printable),
+ "reset",
+ GTK_SIGNAL_FUNC(e_table_item_reset),
+ itemcontext);
+ gtk_signal_connect (GTK_OBJECT(printable),
+ "height",
+ GTK_SIGNAL_FUNC(e_table_item_height),
+ itemcontext);
+ gtk_signal_connect (GTK_OBJECT(printable),
+ "destroy",
+ GTK_SIGNAL_FUNC(e_table_item_printable_destroy),
+ itemcontext);
+
+ return printable;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 00:32:16 +0800