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Diffstat (limited to 'plug-ins/gimpressionist/paper.c')
| -rw-r--r-- | plug-ins/gimpressionist/paper.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/plug-ins/gimpressionist/paper.c b/plug-ins/gimpressionist/paper.c new file mode 100644 index 0000000..562b0e4 --- /dev/null +++ b/plug-ins/gimpressionist/paper.c @@ -0,0 +1,221 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <string.h> + +#include <gtk/gtk.h> + +#include <libgimp/gimp.h> +#include <libgimp/gimpui.h> + +#include "gimpressionist.h" +#include "ppmtool.h" +#include "paper.h" + +#include "libgimp/stdplugins-intl.h" + + +static GtkWidget *paper_preview = NULL; +static GtkWidget *paper_invert = NULL; +static GtkWidget *paper_list = NULL; +static GtkObject *paper_relief_adjust = NULL; +static GtkObject *paper_scale_adjust = NULL; +static GtkWidget *paper_overlay = NULL; + +static void paper_update_preview (void) +{ + gint i, j; + guchar *buf, *paper_preview_buffer; + gdouble sc; + ppm_t p = {0, 0, NULL}; + + ppm_load (pcvals.selected_paper, &p); + sc = p.width > p.height ? p.width : p.height; + sc = 100.0 / sc; + resize (&p, p.width*sc,p.height*sc); + + paper_preview_buffer = g_new0 (guchar, 100*100); + + for (i = 0, buf = paper_preview_buffer; i < 100; i++, buf += 100) + { + gint k = i * p.width * 3; + + if (i < p.height) + { + for (j = 0; j < p.width; j++) + buf[j] = p.col[k + j * 3]; + if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (paper_invert))) + for (j = 0; j < p.width; j++) + buf[j] = 255 - buf[j]; + } + } + gimp_preview_area_draw (GIMP_PREVIEW_AREA (paper_preview), + 0, 0, 100, 100, + GIMP_GRAY_IMAGE, + paper_preview_buffer, + 100); + + ppm_kill (&p); + g_free (paper_preview_buffer); + + gtk_widget_queue_draw (paper_preview); +} + +static void +paper_select (GtkTreeSelection *selection, + gpointer data) +{ + GtkTreeIter iter; + GtkTreeModel *model; + + if (gtk_tree_selection_get_selected (selection, &model, &iter)) + { + gchar *paper; + + gtk_tree_model_get (model, &iter, 0, &paper, -1); + + if (paper) + { + gchar *fname = g_build_filename ("Paper", paper, NULL); + + g_strlcpy (pcvals.selected_paper, + fname, sizeof (pcvals.selected_paper)); + + paper_update_preview (); + + g_free (fname); + g_free (paper); + } + } +} + +void +paper_restore (void) +{ + reselect (paper_list, pcvals.selected_paper); + gtk_adjustment_set_value (GTK_ADJUSTMENT (paper_relief_adjust), pcvals.paper_relief); + gtk_adjustment_set_value (GTK_ADJUSTMENT (paper_scale_adjust), pcvals.paper_scale); + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (paper_invert), pcvals.paper_invert); + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (paper_overlay), pcvals.paper_overlay); +} + +void +paper_store (void) +{ + pcvals.paper_invert = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (paper_invert)); + pcvals.paper_overlay = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (paper_overlay)); +} + +void +create_paperpage (GtkNotebook *notebook) +{ + GtkWidget *box1, *thispage, *box2; + GtkWidget *label, *tmpw, *table; + GtkWidget *view; + GtkWidget *frame; + GtkTreeSelection *selection; + GtkTreeIter iter; + GtkListStore *paper_store_list; + + label = gtk_label_new_with_mnemonic (_("P_aper")); + + thispage = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12); + gtk_container_set_border_width (GTK_CONTAINER (thispage), 12); + gtk_widget_show (thispage); + + box1 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12); + gtk_box_pack_start (GTK_BOX (thispage), box1, TRUE, TRUE, 0); + gtk_widget_show (box1); + + paper_list = view = create_one_column_list (box1, paper_select); + paper_store_list = + GTK_LIST_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (view))); + selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view)); + + box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12); + gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0); + gtk_widget_show (box2); + + frame = gtk_frame_new (NULL); + gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN); + gtk_box_pack_start (GTK_BOX (box2), frame, FALSE, FALSE, 0); + gtk_widget_show (frame); + + paper_preview = tmpw = gimp_preview_area_new (); + gtk_widget_set_size_request (tmpw, 100, 100); + gtk_container_add (GTK_CONTAINER (frame), tmpw); + gtk_widget_show (tmpw); + + paper_invert = tmpw = gtk_check_button_new_with_mnemonic ( _("_Invert")); + gtk_box_pack_start (GTK_BOX (box2), tmpw, FALSE, FALSE, 0); + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (tmpw), FALSE); + gtk_widget_show (tmpw); + g_signal_connect_swapped (tmpw, "clicked", + G_CALLBACK (paper_select), selection); + gimp_help_set_help_data (tmpw, _("Inverts the Papers texture"), NULL); + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (tmpw), + pcvals.paper_invert); + + paper_overlay = tmpw = gtk_check_button_new_with_mnemonic ( _("O_verlay")); + gtk_box_pack_start (GTK_BOX (box2), tmpw, FALSE, FALSE, 0); + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (tmpw), FALSE); + gtk_widget_show (tmpw); + gimp_help_set_help_data + (tmpw, _("Applies the paper as it is (without embossing it)"), NULL); + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (tmpw), + pcvals.paper_overlay); + + table = gtk_table_new (2, 3, FALSE); + gtk_table_set_col_spacings (GTK_TABLE (table), 6); + gtk_table_set_row_spacings (GTK_TABLE (table), 6); + gtk_box_pack_start (GTK_BOX (thispage), table, FALSE, FALSE, 0); + gtk_widget_show (table); + + paper_scale_adjust = + gimp_scale_entry_new (GTK_TABLE (table), 0, 0, + _("Scale:"), + 150, -1, pcvals.paper_scale, + 3.0, 150.0, 1.0, 10.0, 1, + TRUE, 0, 0, + _("Specifies the scale of the texture (in percent of original file)"), + NULL); + g_signal_connect (paper_scale_adjust, "value-changed", + G_CALLBACK (gimp_double_adjustment_update), + &pcvals.paper_scale); + + paper_relief_adjust = + gimp_scale_entry_new (GTK_TABLE (table), 0, 1, + _("Relief:"), + 150, -1, pcvals.paper_relief, + 0.0, 100.0, 1.0, 10.0, 1, + TRUE, 0, 0, + _("Specifies the amount of embossing to apply to the image (in percent)"), + NULL); + g_signal_connect (paper_relief_adjust, "value-changed", + G_CALLBACK (gimp_double_adjustment_update), + &pcvals.paper_relief); + + + if (gtk_tree_model_get_iter_first (GTK_TREE_MODEL (paper_store_list), &iter)) + gtk_tree_selection_select_iter (selection, &iter); + + paper_select (selection, NULL); + readdirintolist ("Paper", view, pcvals.selected_paper); + gtk_notebook_append_page_menu (notebook, thispage, label, NULL); +} |