tint2conf: gradient config
This commit is contained in:
o9000
334
src/tint2conf/gradient_gui.c
Normal file
334
src/tint2conf/gradient_gui.c
Normal file
@@ -0,0 +1,334 @@
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#include "gradient_gui.h"
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#include <math.h>
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GtkListStore *gradient_ids;
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GList *gradients;
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GtkWidget *current_gradient, *gradient_combo_type, *gradient_start_color, *gradient_end_color, *gradient_color_stops;
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int gradient_index_safe(int index)
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{
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if (index <= 0)
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index = 0;
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if (index >= get_model_length(GTK_TREE_MODEL(gradient_ids)))
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index = 0;
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return index;
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}
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GtkWidget *create_gradient_combo()
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{
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GtkWidget *combo = gtk_combo_box_new_with_model(GTK_TREE_MODEL(gradient_ids));
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GtkCellRenderer *renderer = gtk_cell_renderer_pixbuf_new();
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gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
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gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "pixbuf", grColPixbuf, NULL);
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renderer = gtk_cell_renderer_text_new();
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g_object_set(renderer, "wrap-mode", PANGO_WRAP_WORD, NULL);
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g_object_set(renderer, "wrap-width", 300, NULL);
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gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
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gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", grColText, NULL);
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return combo;
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}
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void create_gradient(GtkWidget *parent)
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{
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gradient_ids = gtk_list_store_new(grNumCols, GDK_TYPE_PIXBUF, GTK_TYPE_INT, GTK_TYPE_STRING);
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gradients = NULL;
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GtkWidget *table, *label, *button;
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int row, col;
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// GtkTooltips *tooltips = gtk_tooltips_new();
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table = gtk_table_new(1, 4, FALSE);
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gtk_widget_show(table);
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gtk_box_pack_start(GTK_BOX(parent), table, FALSE, FALSE, 0);
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gtk_table_set_row_spacings(GTK_TABLE(table), ROW_SPACING);
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gtk_table_set_col_spacings(GTK_TABLE(table), COL_SPACING);
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row = 0, col = 0;
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label = gtk_label_new(_("<b>Gradient</b>"));
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gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
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gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
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gtk_widget_show(label);
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gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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current_gradient = create_gradient_combo();
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gtk_widget_show(current_gradient);
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gtk_table_attach(GTK_TABLE(table), current_gradient, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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button = gtk_button_new_from_stock("gtk-add");
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gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(gradient_duplicate), NULL);
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gtk_widget_show(button);
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gtk_table_attach(GTK_TABLE(table), button, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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button = gtk_button_new_from_stock("gtk-remove");
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gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(gradient_delete), NULL);
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gtk_widget_show(button);
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gtk_table_attach(GTK_TABLE(table), button, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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table = gtk_table_new(3, 4, FALSE);
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gtk_widget_show(table);
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gtk_box_pack_start(GTK_BOX(parent), table, FALSE, FALSE, 0);
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gtk_table_set_row_spacings(GTK_TABLE(table), ROW_SPACING);
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gtk_table_set_col_spacings(GTK_TABLE(table), COL_SPACING);
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row = 0, col = 2;
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label = gtk_label_new(_("Type"));
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gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
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gtk_widget_show(label);
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gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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gradient_combo_type = gtk_combo_box_new_text();
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gtk_widget_show(gradient_combo_type);
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gtk_table_attach(GTK_TABLE(table), gradient_combo_type, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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gtk_combo_box_append_text(GTK_COMBO_BOX(gradient_combo_type), _("Vertical"));
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gtk_combo_box_append_text(GTK_COMBO_BOX(gradient_combo_type), _("Horizontal"));
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gtk_combo_box_append_text(GTK_COMBO_BOX(gradient_combo_type), _("Radial"));
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gtk_combo_box_set_active(GTK_COMBO_BOX(gradient_combo_type), 0);
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row++, col = 2;
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label = gtk_label_new(_("Start color"));
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gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
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gtk_widget_show(label);
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gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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gradient_start_color = gtk_color_button_new();
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gtk_color_button_set_use_alpha(GTK_COLOR_BUTTON(gradient_start_color), TRUE);
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gtk_widget_show(gradient_start_color);
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gtk_table_attach(GTK_TABLE(table), gradient_start_color, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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row++, col = 2;
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label = gtk_label_new(_("End color"));
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gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
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gtk_widget_show(label);
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gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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gradient_end_color = gtk_color_button_new();
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gtk_color_button_set_use_alpha(GTK_COLOR_BUTTON(gradient_end_color), TRUE);
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gtk_widget_show(gradient_end_color);
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gtk_table_attach(GTK_TABLE(table), gradient_end_color, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
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col++;
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change_paragraph(parent);
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#if 0
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label = gtk_label_new(_("<b>Color stops</b>"));
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gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
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gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
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gtk_widget_show(label);
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gtk_box_pack_start(GTK_BOX(parent), label, FALSE, FALSE, 0);
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table = gtk_table_new(1, 4, FALSE);
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gtk_widget_show(table);
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gtk_box_pack_start(GTK_BOX(parent), table, FALSE, FALSE, 0);
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gtk_table_set_row_spacings(GTK_TABLE(table), ROW_SPACING);
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gtk_table_set_col_spacings(GTK_TABLE(table), COL_SPACING);
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row = 0, col = 2;
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label = gtk_label_new(_("--"));
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gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
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gtk_widget_show(label);
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gtk_table_attach(GTK_TABLE(table), label, col, col+1, row, row+1, GTK_FILL, 0, 0, 0);
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col++;
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#endif
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g_signal_connect(G_OBJECT(current_gradient), "changed", G_CALLBACK(current_gradient_changed), NULL);
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g_signal_connect(G_OBJECT(gradient_combo_type), "changed", G_CALLBACK(gradient_update), NULL);
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g_signal_connect(G_OBJECT(gradient_start_color), "color-set", G_CALLBACK(gradient_update), NULL);
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g_signal_connect(G_OBJECT(gradient_end_color), "color-set", G_CALLBACK(gradient_update), NULL);
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change_paragraph(parent);
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}
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void gradient_create_new(GradientConfigType t)
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{
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int index = get_model_length(GTK_TREE_MODEL(gradient_ids));
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GradientConfig *g = (GradientConfig *)calloc(1, sizeof(GradientConfig));
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g->type = t;
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gradients = g_list_append(gradients, g);
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GtkTreeIter iter;
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gtk_list_store_append(gradient_ids, &iter);
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gtk_list_store_set(gradient_ids, &iter,
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grColPixbuf, NULL,
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grColId, &index,
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grColText, "",
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-1);
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gradient_update_image(index);
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gtk_combo_box_set_active(GTK_COMBO_BOX(current_gradient), index);
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current_gradient_changed(0, 0);
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}
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void gradient_duplicate(GtkWidget *widget, gpointer data)
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{
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gradient_create_new(GRADIENT_CONFIG_VERTICAL);
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}
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void gradient_delete(GtkWidget *widget, gpointer data)
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{
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int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
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if (index < 0)
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return;
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if (get_model_length(GTK_TREE_MODEL(gradient_ids)) <= 1)
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return;
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GtkTreePath *path;
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GtkTreeIter iter;
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path = gtk_tree_path_new_from_indices(index, -1);
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gtk_tree_model_get_iter(GTK_TREE_MODEL(gradient_ids), &iter, path);
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gtk_tree_path_free(path);
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gradients = g_list_remove(gradients, g_list_nth(gradients, (guint)index)->data);
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gtk_list_store_remove(gradient_ids, &iter);
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if (index == get_model_length(GTK_TREE_MODEL(gradient_ids)))
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index--;
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gtk_combo_box_set_active(GTK_COMBO_BOX(gradient_ids), index);
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}
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void gradient_draw(cairo_t *c, GradientConfig *g, int w, int h, gboolean preserve)
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{
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cairo_pattern_t *gpat;
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if (g->type == GRADIENT_CONFIG_VERTICAL)
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gpat = cairo_pattern_create_linear(0, 0, 0, h);
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else if (g->type == GRADIENT_CONFIG_HORIZONTAL)
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gpat = cairo_pattern_create_linear(0, 0, w, 0);
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else gpat = cairo_pattern_create_radial(w/2, h/2, 0, w/2, h/2, sqrt(w * w + h * h) / 2);
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cairo_pattern_add_color_stop_rgba(gpat, 0.0, g->start_color.color.rgb[0], g->start_color.color.rgb[1], g->start_color.color.rgb[2], g->start_color.color.alpha);
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for (GList *l = g->extra_color_stops; l; l = l->next) {
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GradientConfigColorStop *stop = (GradientConfigColorStop *)l->data;
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cairo_pattern_add_color_stop_rgba(gpat,
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stop->offset,
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stop->color.rgb[0],
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stop->color.rgb[1],
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stop->color.rgb[2],
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stop->color.alpha);
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}
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cairo_pattern_add_color_stop_rgba(gpat, 1.0, g->end_color.color.rgb[0], g->end_color.color.rgb[1], g->end_color.color.rgb[2], g->end_color.color.alpha);
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cairo_set_source(c, gpat);
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cairo_rectangle(c, 0, 0, w, h);
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if (preserve)
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cairo_fill_preserve(c);
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else
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cairo_fill(c);
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cairo_pattern_destroy(gpat);
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}
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void gradient_update_image(int index)
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{
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GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)index)->data;
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int w = 70;
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int h = 30;
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GdkPixmap *pixmap = gdk_pixmap_new(NULL, w, h, 24);
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cairo_t *cr = gdk_cairo_create(pixmap);
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cairo_set_source_rgb(cr, 0.5, 0.5, 0.5);
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cairo_rectangle(cr, 0, 0, w, h);
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cairo_fill(cr);
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gradient_draw(cr, g, w, h, FALSE);
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GdkPixbuf *pixbuf = gdk_pixbuf_get_from_drawable(NULL, pixmap, gdk_colormap_get_system(), 0, 0, 0, 0, w, h);
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if (pixmap)
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g_object_unref(pixmap);
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GtkTreePath *path;
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GtkTreeIter iter;
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path = gtk_tree_path_new_from_indices(index, -1);
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gtk_tree_model_get_iter(GTK_TREE_MODEL(gradient_ids), &iter, path);
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gtk_tree_path_free(path);
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gtk_list_store_set(gradient_ids, &iter,
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grColPixbuf, pixbuf,
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-1);
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if (pixbuf)
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g_object_unref(pixbuf);
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}
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void gradient_force_update()
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{
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gradient_update(NULL, NULL);
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}
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static gboolean gradient_updates_disabled = FALSE;
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void gradient_update(GtkWidget *widget, gpointer data)
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{
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if (gradient_updates_disabled)
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return;
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int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
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if (index < 0)
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return;
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GtkTreePath *path;
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GtkTreeIter iter;
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path = gtk_tree_path_new_from_indices(index, -1);
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gtk_tree_model_get_iter(GTK_TREE_MODEL(gradient_ids), &iter, path);
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gtk_tree_path_free(path);
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GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)index)->data;
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g->type = (GradientConfigType)MAX(0, gtk_combo_box_get_active(GTK_COMBO_BOX(gradient_combo_type)));
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GdkColor color;
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int opacity;
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gtk_color_button_get_color(GTK_COLOR_BUTTON(gradient_start_color), &color);
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opacity = MIN(100, 0.5 + gtk_color_button_get_alpha(GTK_COLOR_BUTTON(gradient_start_color)) * 100.0 / 0xffff);
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gdkColor2CairoColor(color, &g->start_color.color.rgb[0], &g->start_color.color.rgb[1], &g->start_color.color.rgb[2]);
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g->start_color.color.alpha = opacity / 100.0;
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gtk_color_button_get_color(GTK_COLOR_BUTTON(gradient_end_color), &color);
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opacity = MIN(100, 0.5 + gtk_color_button_get_alpha(GTK_COLOR_BUTTON(gradient_end_color)) * 100.0 / 0xffff);
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gdkColor2CairoColor(color, &g->end_color.color.rgb[0], &g->end_color.color.rgb[1], &g->end_color.color.rgb[2]);
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g->end_color.color.alpha = opacity / 100.0;
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gtk_list_store_set(gradient_ids, &iter,
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grColPixbuf, NULL,
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grColId, &index,
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grColText, "",
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-1);
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gradient_update_image(index);
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}
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void current_gradient_changed(GtkWidget *widget, gpointer data)
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{
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int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
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if (index < 0)
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return;
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gradient_updates_disabled = TRUE;
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GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)index)->data;
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gtk_combo_box_set_active(GTK_COMBO_BOX(gradient_combo_type), g->type);
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GdkColor color;
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int opacity;
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cairoColor2GdkColor(g->start_color.color.rgb[0], g->start_color.color.rgb[1], g->start_color.color.rgb[2], &color);
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opacity = (g->start_color.color.alpha * 65535) / 100;
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gtk_color_button_set_color(GTK_COLOR_BUTTON(gradient_start_color), &color);
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gtk_color_button_set_alpha(GTK_COLOR_BUTTON(background_fill_color_over), opacity);
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cairoColor2GdkColor(g->end_color.color.rgb[0], g->end_color.color.rgb[1], g->end_color.color.rgb[2], &color);
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opacity = (g->end_color.color.alpha * 65535) / 100;
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gtk_color_button_set_color(GTK_COLOR_BUTTON(gradient_end_color), &color);
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gtk_color_button_set_alpha(GTK_COLOR_BUTTON(background_fill_color_over), opacity);
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gradient_updates_disabled = FALSE;
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gradient_update_image(index);
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}
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