145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
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/* a simple test for GuiCellRendererSpin */
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#include <gtk/gtk.h>
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#include "cellrendererspin.h"
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enum
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{
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COL_NAME = 0,
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COL_NUMBER,
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NUM_COLS
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} ;
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static GtkTreeModel *
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create_and_fill_model (void)
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{
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GtkListStore *liststore;
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GtkTreeIter iter;
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liststore = gtk_list_store_new(NUM_COLS, G_TYPE_STRING, G_TYPE_FLOAT);
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gtk_list_store_append(liststore, &iter);
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gtk_list_store_set(liststore, &iter, COL_NAME, "M J Smith", COL_NUMBER, 5.0, -1);
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gtk_list_store_append(liststore, &iter);
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gtk_list_store_set(liststore, &iter, COL_NAME, "K F Hemmingwinski", COL_NUMBER, 3.8, -1);
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gtk_list_store_append(liststore, &iter);
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gtk_list_store_set(liststore, &iter, COL_NAME, "P C Juanicini", COL_NUMBER, 2.5, -1);
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return GTK_TREE_MODEL(liststore);
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}
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static void
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cell_data_func_gpa (GtkTreeViewColumn *col,
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GtkCellRenderer *cell,
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GtkTreeModel *model,
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GtkTreeIter *iter,
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gpointer data)
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{
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gchar buf[32];
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GValue val = {0, };
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gtk_tree_model_get_value(model, iter, COL_NUMBER, &val);
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g_snprintf(buf, sizeof(buf), "%.1f", g_value_get_float(&val));
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g_object_set(cell, "text", buf, NULL);
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}
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static void
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on_gpa_edited (GtkCellRendererText *celltext,
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const gchar *string_path,
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const gchar *new_text,
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gpointer data)
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{
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GtkTreeModel *model = GTK_TREE_MODEL(data);
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GtkTreeIter iter;
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gchar *name = NULL;
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gfloat oldval = 0.0;
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gfloat newval = 0.0;
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gtk_tree_model_get_iter_from_string(model, &iter, string_path);
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gtk_tree_model_get(model, &iter, COL_NAME, &name, COL_NUMBER, &oldval, -1);
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if (sscanf(new_text, "%f", &newval) != 1)
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g_warning("in %s: problem converting string '%s' into float.\n", __FUNCTION__, new_text);
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g_print ("%s: old GPA = %.1f, new GPA = %.1f ('%s')\n", name, oldval, newval, new_text);
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gtk_list_store_set(GTK_LIST_STORE(model), &iter, COL_NUMBER, newval, -1);
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g_free(name);
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}
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static GtkWidget *
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create_view_and_model (void)
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{
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GtkTreeViewColumn *col;
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GtkCellRenderer *renderer;
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GtkWidget *view;
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GtkTreeModel *model;
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view = gtk_tree_view_new();
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model = create_and_fill_model();
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gtk_tree_view_set_model(GTK_TREE_VIEW(view), model);
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g_object_unref(model); /* destroy model automatically with view */
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gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(view)), GTK_SELECTION_SINGLE);
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/* --- Column #1 --- */
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col = gtk_tree_view_column_new();
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renderer = gtk_cell_renderer_text_new();
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gtk_tree_view_column_set_title(col, "Name");
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gtk_tree_view_column_pack_start(col, renderer, TRUE);
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gtk_tree_view_column_add_attribute(col, renderer, "text", COL_NAME);
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gtk_tree_view_append_column(GTK_TREE_VIEW(view), col);
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/* --- Column #2 --- */
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col = gtk_tree_view_column_new();
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renderer = gui_cell_renderer_spin_new(0.0, 5.0, 0.1, 1.0, 1.0, 0.1, 1);
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gtk_tree_view_column_set_title(col, "GPA");
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gtk_tree_view_column_pack_start(col, renderer, TRUE);
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gtk_tree_view_column_set_cell_data_func(col, renderer, cell_data_func_gpa, NULL, NULL);
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gtk_tree_view_append_column(GTK_TREE_VIEW(view), col);
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g_object_set(renderer, "editable", TRUE, NULL);
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g_signal_connect(renderer, "edited", G_CALLBACK(on_gpa_edited), model);
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return view;
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}
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int
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main (int argc, char **argv)
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{
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GtkWidget *window;
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GtkWidget *view;
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gtk_init(&argc, &argv);
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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g_signal_connect(window, "delete_event", gtk_main_quit, NULL); /* dirty */
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view = create_view_and_model();
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gtk_container_add(GTK_CONTAINER(window), view);
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gtk_widget_show_all(window);
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gtk_main();
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return 0;
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}
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