mirror of
git://projects.qi-hardware.com/fped.git
synced 2024-11-22 13:14:04 +02:00
Added support for reordering rows and columns in a table via the GUI. To move
a column, drag the variable or any of its values and drag horizontally. To move a row, drag one of its value vertically. - gui_frame.c (table_var_select_event, table_value_select_event): return FALSE if dragging is possible - gui_frame.c (build_table), gui_frame_drag.h, gui_frame_drag.c, Makefile: support for rearranging tables using Gtk's drag and drop mechanism - TODO: two items less git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5929 99fdad57-331a-0410-800a-d7fa5415bdb3
This commit is contained in:
werner
parent
59335b63b0
commit
093a34f860
2
Makefile
2
Makefile
@ -19,7 +19,7 @@ OBJS = fped.o expr.o coord.o obj.o delete.o inst.o util.o error.o \
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layer.o overlap.o \
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cpp.o lex.yy.o y.tab.o \
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gui.o gui_util.o gui_style.o gui_inst.o gui_status.o gui_canvas.o \
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gui_tool.o gui_over.o gui_meas.o gui_frame.o
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gui_tool.o gui_over.o gui_meas.o gui_frame.o gui_frame_drag.o
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XPMS = point.xpm delete.xpm delete_off.xpm \
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vec.xpm frame.xpm frame_locked.xpm frame_ready.xpm \
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2
TODO
2
TODO
@ -6,8 +6,6 @@ Major missing features:
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Minor missing features:
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- reorder frames (can use text editor)
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- reorder rows in a table (can use text editor)
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- reorder columns in a table
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- reorder variables in a frame (can use text editor)
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- move items/vectors up and down the hierarchy
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@ -27,6 +27,7 @@
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#include "gui_tool.h"
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#include "gui_canvas.h"
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#include "gui.h"
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#include "gui_frame_drag.h"
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#include "gui_frame.h"
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@ -893,7 +894,7 @@ static gboolean table_var_select_event(GtkWidget *widget,
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switch (event->button) {
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case 1:
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edit_var(var, set_col_values, var, -1);
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break;
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return FALSE;
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case 3:
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pop_up_table_var(var, event);
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break;
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@ -918,7 +919,7 @@ static gboolean table_value_select_event(GtkWidget *widget,
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select_row(value->row);
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change_world();
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}
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break;
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return FALSE;
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case 3:
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pop_up_table_value(value, event);
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break;
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@ -999,7 +1000,6 @@ static void build_table(GtkWidget *vbox, struct frame *frame,
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gtk_table_set_row_spacings(GTK_TABLE(tab), 1);
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gtk_table_set_col_spacings(GTK_TABLE(tab), 1);
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}
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field = label_in_box_new(var->name,
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@ -1015,6 +1015,8 @@ static void build_table(GtkWidget *vbox, struct frame *frame,
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G_CALLBACK(table_scroll_event), table);
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var->widget = field;
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setup_var_drag(var);
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n_row = 0;
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for (row = table->rows; row; row = row->next) {
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value = row->values;
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@ -1037,6 +1039,7 @@ static void build_table(GtkWidget *vbox, struct frame *frame,
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"scroll_event",
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G_CALLBACK(table_scroll_event), table);
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value->widget = field;
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setup_value_drag(value);
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n_row++;
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}
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281
gui_frame_drag.c
Normal file
281
gui_frame_drag.c
Normal file
@ -0,0 +1,281 @@
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/*
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* gui_frame_drag.c - GUI, dragging of frame items
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*
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* Written 2010 by Werner Almesberger
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* Copyright 2010 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <gtk/gtk.h>
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#include "obj.h"
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#include "gui_util.h"
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#include "gui_frame_drag.h"
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/*
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* Pointer to whatever it is we're dragging. Undefined if not dragging.
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*/
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static void *dragging;
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/* ----- helper functions for indexed list and swapping -------------------- */
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#define NDX(first, item) \
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({ typeof(first) NDX_walk; \
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int NDX_n = 0; \
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for (NDX_walk = (first); NDX_walk != (item); \
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NDX_walk = NDX_walk->next) \
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NDX_n++; \
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NDX_n; })
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#define NTH(first, n) \
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({ typeof(first) *NTH_walk; \
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int NTH_n = (n); \
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for (NTH_walk = &(first); NTH_n; NTH_n--) \
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NTH_walk = &(*NTH_walk)->next; \
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NTH_walk; })
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#define SWAP(a, b) \
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({ typeof(a) SWAP_tmp; \
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SWAP_tmp = a; \
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a = b; \
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b = SWAP_tmp; })
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/* ----- generic helper functions. maybe move to gui_util later ------------ */
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static void get_cell_coords(GtkWidget *widget, guint res[4])
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{
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GtkWidget *tab;
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tab = gtk_widget_get_ancestor(widget, GTK_TYPE_TABLE);
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gtk_container_child_get(GTK_CONTAINER(tab), widget,
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"left-attach", res,
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"right-attach", res+1,
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"top-attach", res+2,
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"bottom-attach", res+3, NULL);
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}
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static void swap_table_cells(GtkWidget *a, GtkWidget *b)
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{
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GtkWidget *tab_a, *tab_b;
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guint pos_a[4], pos_b[4];
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tab_a = gtk_widget_get_ancestor(a, GTK_TYPE_TABLE);
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tab_b = gtk_widget_get_ancestor(b, GTK_TYPE_TABLE);
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get_cell_coords(a, pos_a);
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get_cell_coords(b, pos_b);
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g_object_ref(a);
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g_object_ref(b);
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gtk_container_remove(GTK_CONTAINER(tab_a), a);
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gtk_container_remove(GTK_CONTAINER(tab_b), b);
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gtk_table_attach_defaults(GTK_TABLE(tab_a), b,
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pos_a[0], pos_a[1], pos_a[2], pos_a[3]);
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gtk_table_attach_defaults(GTK_TABLE(tab_b), a,
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pos_b[0], pos_b[1], pos_b[2], pos_b[3]);
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g_object_unref(a);
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g_object_unref(b);
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}
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/* ----- swap table items -------------------------------------------------- */
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static void swap_vars(struct table *table, int a, int b)
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{
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struct var **var_a, **var_b;
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var_a = NTH(table->vars, a);
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var_b = NTH(table->vars, b);
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swap_table_cells(box_of_label((*var_a)->widget),
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box_of_label((*var_b)->widget));
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SWAP(*var_a, *var_b);
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SWAP((*var_a)->next, (*var_b)->next);
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}
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static void swap_values(struct row *row, int a, int b)
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{
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struct value **value_a, **value_b;
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value_a = NTH(row->values, a);
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value_b = NTH(row->values, b);
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swap_table_cells(box_of_label((*value_a)->widget),
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box_of_label((*value_b)->widget));
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SWAP(*value_a, *value_b);
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SWAP((*value_a)->next, (*value_b)->next);
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}
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static void swap_cols(struct table *table, int a, int b)
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{
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struct row *row;
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swap_vars(table, a, b);
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for (row = table->rows; row; row = row->next)
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swap_values(row, a, b);
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}
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static void swap_rows(struct row **a, struct row **b)
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{
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struct value *value_a, *value_b;
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value_a = (*a)->values;
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value_b = (*b)->values;
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while (value_a) {
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swap_table_cells(box_of_label(value_a->widget),
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box_of_label(value_b->widget));
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value_a = value_a->next;
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value_b = value_b->next;
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}
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SWAP(*a, *b);
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SWAP((*a)->next, (*b)->next);
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}
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/* ----- common callback --------------------------------------------------- */
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static void drag_begin(GtkWidget *widget,
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GtkTextDirection previous_direction, gpointer user_data)
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{
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GdkPixbuf *pixbuf;
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/*
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* Suppress the icon. PixBufs can't be zero-sized, but nobody will
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* notice a lone pixel either :-)
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*/
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pixbuf =
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gdk_pixbuf_get_from_drawable(NULL, DA, NULL, 0, 0, 0, 0, 1, 1);
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gtk_drag_source_set_icon_pixbuf(widget, pixbuf);
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dragging = user_data;
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}
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/* ----- drag variables ---------------------------------------------------- */
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static gboolean drag_var_motion(GtkWidget *widget,
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GdkDragContext *drag_context, gint x, gint y, guint time_,
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gpointer user_data)
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{
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struct var *from = dragging;
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struct var *to = user_data;
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int from_n, to_n, i;
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if (from == to || from->table != to->table)
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return FALSE;
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from_n = NDX(from->table->vars, from);
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to_n = NDX(to->table->vars, to);
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for (i = from_n < to_n ? from_n : to_n;
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i != (from_n < to_n ? to_n : from_n); i++)
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swap_cols(from->table, i, i+1);
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return FALSE;
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}
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void setup_var_drag(struct var *var)
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{
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static GtkTargetEntry target = {
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.target = "var",
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.flags = GTK_TARGET_SAME_APP,
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};
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GtkWidget *box;
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box = box_of_label(var->widget);
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gtk_drag_source_set(box, GDK_BUTTON1_MASK,
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&target, 1, GDK_ACTION_PRIVATE);
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gtk_drag_dest_set(box, GTK_DEST_DEFAULT_HIGHLIGHT,
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&target, 1, GDK_ACTION_PRIVATE);
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g_signal_connect(G_OBJECT(box), "drag-begin",
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G_CALLBACK(drag_begin), var);
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g_signal_connect(G_OBJECT(box), "drag-motion",
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G_CALLBACK(drag_var_motion), var);
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}
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/* ----- drag values ------------------------------------------------------- */
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static gboolean drag_value_motion(GtkWidget *widget,
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GdkDragContext *drag_context, gint x, gint y, guint time_,
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gpointer user_data)
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{
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struct value *from = dragging;
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struct value *to = user_data;
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struct table *table = from->row->table;
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struct row **row, *end;
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int from_n, to_n, i;
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if (table != to->row->table)
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return FALSE;
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/* columns */
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from_n = NDX(from->row->values, from);
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to_n = NDX(to->row->values, to);
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for (i = from_n < to_n ? from_n : to_n;
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i != (from_n < to_n ? to_n : from_n); i++)
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swap_cols(table, i, i+1);
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/* rows */
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if (from->row == to->row)
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return FALSE;
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row = &table->rows;
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while (1) {
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if (*row == from->row) {
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end = to->row;
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break;
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}
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if (*row == to->row) {
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end = from->row;
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break;
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}
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row = &(*row)->next;
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}
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while (1) {
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swap_rows(row, &(*row)->next);
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if (*row == end)
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break;
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row = &(*row)->next;
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}
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return FALSE;
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}
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void setup_value_drag(struct value *value)
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{
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static GtkTargetEntry target = {
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.target = "value",
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.flags = GTK_TARGET_SAME_APP,
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};
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GtkWidget *box;
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box = box_of_label(value->widget);
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gtk_drag_source_set(box, GDK_BUTTON1_MASK,
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&target, 1, GDK_ACTION_PRIVATE);
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gtk_drag_dest_set(box, GTK_DEST_DEFAULT_HIGHLIGHT,
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&target, 1, GDK_ACTION_PRIVATE);
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g_signal_connect(G_OBJECT(box), "drag-begin",
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G_CALLBACK(drag_begin), value);
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g_signal_connect(G_OBJECT(box), "drag-motion",
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G_CALLBACK(drag_value_motion), value);
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}
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25
gui_frame_drag.h
Normal file
25
gui_frame_drag.h
Normal file
@ -0,0 +1,25 @@
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/*
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* gui_frame_drag.h - GUI, dragging of frame items
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*
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* Written 2010 by Werner Almesberger
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* Copyright 2010 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef GUI_FRAME_DRAG_H
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#define GUI_FRAME_DRAG_H
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#include <gtk/gtk.h>
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#include "obj.h"
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void setup_var_drag(struct var *var);
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void setup_value_drag(struct value *value);
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#endif /* !GUI_FRAME_DRAG_H */
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