Toolbar

1 files changed, 90 insertions, 0 deletions

diff --git a/toolbar.c b/toolbar.c
new file mode 100644
index 0000000..62a37e5
--- /dev/null
+++ b/toolbar.c
@@ -0,0 +1,90 @@
+#include "toolbar.h"
+
+#define N_TOOLS 10
+#define TOOL_SIZE 75
+#define CORNER_SIZE 10
+#define BORDER_WIDTH 2
+#define MARGIN 6
+#define COLOR 1.4 * (0x58 / 255.0), 1.4 * (0x75 / 255.0), 1.4 * (0xA7 / 255.0)
+#define STROKE_COLOR (0x58 / 255.0), (0x75 / 255.0), (0xA7 / 255.0)
+
+struct Toolbar
+{
+    int dummy;
+    /* no content */
+};
+
+Toolbar *
+toolbar_new (void)
+{
+    return g_new0 (Toolbar, 1);
+}
+
+void
+toolbar_paint (Toolbar *bar,
+	       FooScrollArea *scroll_area,
+	       cairo_t	     *cr,
+	       int	      x,
+	       int	      y)
+{
+    int i;
+    int b = BORDER_WIDTH / 2;
+    int segment = TOOL_SIZE - 2 * b - 2 * CORNER_SIZE;
+    GdkRectangle viewport;
+
+    foo_scroll_area_get_viewport (scroll_area, &viewport);
+
+    cairo_move_to (cr, b + x, MARGIN + y);
+    
+    for (i = 0; i < N_TOOLS; ++i)
+    {
+	double x, y;
+
+	cairo_get_current_point (cr, &x, &y);
+	
+	cairo_rel_move_to (cr, CORNER_SIZE, 0);
+	cairo_rel_line_to (cr, segment, 0);
+	cairo_rel_curve_to (cr,
+			    CORNER_SIZE, 0,
+			    CORNER_SIZE, 0,
+			    CORNER_SIZE, CORNER_SIZE);
+	cairo_rel_line_to (cr, 0, segment);
+	cairo_rel_curve_to (cr,
+			    0, CORNER_SIZE,
+			    0, CORNER_SIZE,
+			    -CORNER_SIZE, CORNER_SIZE);
+	cairo_rel_line_to (cr, -segment, 0);
+	cairo_rel_curve_to (cr,
+			    -CORNER_SIZE, 0,
+			    -CORNER_SIZE, 0,
+			    -CORNER_SIZE, -CORNER_SIZE);
+	cairo_rel_line_to (cr, 0, -segment);
+	cairo_rel_curve_to (cr,
+			    0, -CORNER_SIZE,
+			    0, -CORNER_SIZE,
+			    CORNER_SIZE, -CORNER_SIZE);
+
+	cairo_set_source_rgba (cr, COLOR, 0.8);
+
+	cairo_fill_preserve (cr);
+
+	cairo_set_source_rgba (cr, STROKE_COLOR, 0.8);
+	cairo_set_line_width (cr, BORDER_WIDTH);
+	
+	cairo_stroke (cr);
+
+	cairo_move_to (cr, x, y + TOOL_SIZE + MARGIN);
+    }
+}
+
+void
+toolbar_invalidate (Toolbar	  *bar,
+		    FooScrollArea *scroll_area,
+		    int		   x,
+		    int		   y)
+{
+    foo_scroll_area_invalidate_rect (scroll_area,
+				     x, y,
+				     TOOL_SIZE + 10,
+				     N_TOOLS * (TOOL_SIZE + MARGIN) + 10);
+}