1 files changed, 150 insertions, 0 deletions
diff --git a/app/wlib/gtklib/lines.c b/app/wlib/gtklib/lines.c
new file mode 100644
index 0000000..bd787a6
--- /dev/null
+++ b/app/wlib/gtklib/lines.c
@@ -0,0 +1,150 @@
+/** \file lines.c
+ * Window for drawing simple line drawing
+ */
+
+/* 	XTrkCad - Model Railroad CAD
+ *  Copyright (C) 2005 Dave Bullis,
+ *                2016 Martin Fischer <m_fischer@sf.net>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ *
+ */
+
+#define GTK_DISABLE_SINGLE_INCLUDES
+#define GDK_DISABLE_DEPRECATED
+#define GTK_DISABLE_DEPRECATED
+#define GSEAL_ENABLE
+
+#include <cairo.h>
+#include <gtk/gtk.h>
+#include <gdk/gdk.h>
+
+#include "gtkint.h"
+
+/*
+ *****************************************************************************
+ *
+ * Lines
+ *
+ *****************************************************************************
+ */
+
+struct wLine_t {
+    WOBJ_COMMON
+    wBool_t visible;
+    int count;
+    wLines_t * lines;
+};
+
+/**
+ * Perform redrawing of the lines window
+ *
+ * \param b IN window handle
+ * \return
+ */
+
+static void linesRepaint(wControl_p b)
+{
+    wLine_p bl = (wLine_p)(b);
+    int i;
+    wWin_p win = (wWin_p)(bl->parent);
+    GdkDrawable * window;
+    cairo_t *cr;
+
+    if (!bl->visible) {
+        return;
+    }
+
+    window = gtk_widget_get_window(win->widget);
+    cr = gdk_cairo_create(window);
+    cairo_set_source_rgb(cr, 0, 0, 0);
+    cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT);
+    cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER);
+
+    for (i=0; i<bl->count; i++) {
+        cairo_set_line_width(cr, bl->lines[i].width);
+        cairo_move_to(cr, bl->lines[i].x0, bl->lines[i].y0);
+        cairo_line_to(cr, bl->lines[i].x1, bl->lines[i].y1);
+        cairo_stroke(cr);
+    }
+
+    cairo_destroy(cr);
+}
+
+/**
+ * Set visibility state of lines window
+ *
+ * \param bl IN window
+ * \param visible IN new visibility state
+ * \return
+ */
+
+void wlibLineShow(
+    wLine_p bl,
+    wBool_t visible)
+{
+    bl->visible = visible;
+}
+
+/**
+ * Create a window consisting of several lines
+ *
+ * \param parent IN parent window
+ * \param labelStr IN  label - unused
+ * \param count IN number of lines
+ * \param lines IN list of line coordinates
+ * \return handle of new window
+ */
+
+wLine_p wLineCreate(
+    wWin_p	parent,
+    const char	* labelStr,
+    int	count,
+    wLines_t * lines)
+{
+    wLine_p linesWindow;
+    int i;
+    linesWindow = (wLine_p)wlibAlloc(parent, B_LINES, 0, 0, labelStr,
+                                    sizeof *linesWindow, NULL);
+    linesWindow->visible = TRUE;
+    linesWindow->count = count;
+    linesWindow->lines = lines;
+    linesWindow->w = linesWindow->h = 0;
+
+    for (i=0; i<count; i++) {
+        if (lines[i].x0 > linesWindow->w) {
+            linesWindow->w = lines[i].x0;
+        }
+
+        if (lines[i].y0 > linesWindow->h) {
+            linesWindow->h = lines[i].y0;
+        }
+
+        if (lines[i].x1 > linesWindow->w) {
+            linesWindow->w = lines[i].x1;
+        }
+
+        if (lines[i].y1 > linesWindow->h) {
+            linesWindow->h = lines[i].y1;
+        }
+    }
+
+    linesWindow->repaintProc = linesRepaint;
+    wlibAddButton((wControl_p)linesWindow);
+    linesWindow->widget = NULL;
+    return linesWindow;
+}