most of the 2.X->3.0 commit (up to rev 4299) except for gtk2_ardour/editor_canvas.cc; builds and runs and does a few specific things but expect it to be buggy for a while yet

git-svn-id: svn://localhost/ardour2/branches/3.0@4313 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 118 insertions, 0 deletions

diff --git a/libs/clearlooks-newer/cairo-support.h b/libs/clearlooks-newer/cairo-support.h
new file mode 100644
index 0000000000..12163b0469
--- /dev/null
+++ b/libs/clearlooks-newer/cairo-support.h
@@ -0,0 +1,118 @@
+/* Helpful functions when dealing with cairo in gtk engines */
+
+#include <gtk/gtk.h>
+#include <math.h>
+
+typedef struct
+{
+	gdouble r;
+	gdouble g;
+	gdouble b;
+	gdouble a;
+} CairoColor;
+
+typedef struct
+{
+	CairoColor bg[5];
+	CairoColor fg[5];
+
+	CairoColor dark[5];
+	CairoColor light[5];
+	CairoColor mid[5];
+
+	CairoColor base[5];
+	CairoColor text[5];
+	CairoColor text_aa[5];
+
+	CairoColor black;
+	CairoColor white;
+} CairoColorCube;
+
+typedef enum
+{
+	CR_CORNER_NONE        = 0,
+	CR_CORNER_TOPLEFT     = 1,
+	CR_CORNER_TOPRIGHT    = 2,
+	CR_CORNER_BOTTOMLEFT  = 4,
+	CR_CORNER_BOTTOMRIGHT = 8,
+	CR_CORNER_ALL         = 15
+} CairoCorners;
+
+typedef enum
+{
+	CR_MIRROR_NONE       = 0,
+	CR_MIRROR_HORIZONTAL = 1 << 0,
+	CR_MIRROR_VERTICAL   = 1 << 1
+} CairoMirror;
+
+/*****************************/
+/* Pattern Fills             */
+/*****************************/
+typedef enum {
+	GE_DIRECTION_VERTICAL,
+	GE_DIRECTION_HORIZONTAL,
+	GE_DIRECTION_BOTH,
+	GE_DIRECTION_NONE
+} GeDirection;
+
+#if  ((CAIRO_VERSION_MAJOR < 1) || ((CAIRO_VERSION_MAJOR == 1) && (CAIRO_VERSION_MINOR < 2)))
+typedef enum _cairo_pattern_type {
+    CAIRO_PATTERN_TYPE_SOLID,
+    CAIRO_PATTERN_TYPE_SURFACE,
+    CAIRO_PATTERN_TYPE_LINEAR,
+    CAIRO_PATTERN_TYPE_RADIAL
+} cairo_pattern_type_t;
+
+#	define CAIRO_PATTERN_TYPE(pattern) pattern->type;
+#else
+#	define CAIRO_PATTERN_TYPE(pattern) cairo_pattern_get_type (pattern->handle);
+#endif
+
+typedef struct
+{
+#if  ((CAIRO_VERSION_MAJOR < 1) || ((CAIRO_VERSION_MAJOR == 1) && (CAIRO_VERSION_MINOR < 2)))
+	cairo_pattern_type_t type;
+#endif
+	GeDirection scale;
+	GeDirection translate;
+
+	cairo_pattern_t *handle;
+	cairo_operator_t operator;
+} CairoPattern;
+
+GE_INTERNAL void ge_hsb_from_color (const CairoColor *color, gdouble *hue, gdouble *saturation, gdouble *brightness);
+GE_INTERNAL void ge_color_from_hsb (gdouble hue, gdouble saturation, gdouble brightness, CairoColor *color);
+
+GE_INTERNAL void ge_gdk_color_to_cairo (const GdkColor * gc, CairoColor * cc);
+GE_INTERNAL void ge_cairo_color_to_gtk (const CairoColor *cc, GdkColor *c);
+GE_INTERNAL void ge_gtk_style_to_cairo_color_cube (GtkStyle * style, CairoColorCube *cube);
+
+GE_INTERNAL void ge_shade_color(const CairoColor *base, gdouble shade_ratio, CairoColor *composite);
+GE_INTERNAL void ge_saturate_color (const CairoColor * base, gdouble saturate_level, CairoColor *composite);
+GE_INTERNAL void ge_mix_color (const CairoColor *color1, const CairoColor *color2, gdouble mix_factor, CairoColor *composite);
+
+GE_INTERNAL cairo_t * ge_gdk_drawable_to_cairo (GdkDrawable  *window, GdkRectangle *area);
+GE_INTERNAL void ge_cairo_set_color (cairo_t *cr, const CairoColor *color);
+GE_INTERNAL void ge_cairo_set_gdk_color_with_alpha (cairo_t *cr, const GdkColor *color, gdouble alpha);
+GE_INTERNAL void ge_cairo_pattern_add_color_stop_color (cairo_pattern_t *pattern, gfloat offset, const CairoColor *color);
+GE_INTERNAL void ge_cairo_pattern_add_color_stop_shade (cairo_pattern_t *pattern, gdouble offset, const CairoColor *color, gdouble shade);
+
+GE_INTERNAL void ge_cairo_rounded_corner (cairo_t *cr, double x, double y, double radius, CairoCorners corner);
+GE_INTERNAL void ge_cairo_rounded_rectangle (cairo_t *cr, double x, double y, double w, double h, double radius, CairoCorners corners);
+
+GE_INTERNAL void ge_cairo_stroke_rectangle (cairo_t *cr, double x, double y, double w, double h);
+GE_INTERNAL void ge_cairo_simple_border (cairo_t *cr, const CairoColor * tl, const CairoColor * br, gint x, gint y, gint width, gint height, gboolean topleft_overlap);
+
+GE_INTERNAL void ge_cairo_line (cairo_t *cr, const CairoColor *color, gint x1, gint y1, gint x2, gint y2);
+GE_INTERNAL void ge_cairo_polygon (cairo_t *cr, const CairoColor *color, GdkPoint *points, gint npoints);
+
+GE_INTERNAL void ge_cairo_mirror (cairo_t *cr, CairoMirror mirror, gint *x, gint *y, gint *width, gint *height);
+GE_INTERNAL void ge_cairo_exchange_axis (cairo_t *cr, gint *x, gint *y, gint *width, gint *height);
+
+GE_INTERNAL void ge_cairo_pattern_fill(cairo_t *canvas, CairoPattern *pattern, gint x, gint y, gint width, gint height);
+
+GE_INTERNAL CairoPattern *ge_cairo_color_pattern(CairoColor *base);
+GE_INTERNAL CairoPattern *ge_cairo_pixbuf_pattern(GdkPixbuf *pixbuf);
+GE_INTERNAL CairoPattern *ge_cairo_pixmap_pattern(GdkPixmap *pixmap);
+GE_INTERNAL CairoPattern *ge_cairo_linear_shade_gradient_pattern(CairoColor *base, gdouble shade1, gdouble shade2, gboolean vertical);
+GE_INTERNAL void ge_cairo_pattern_destroy(CairoPattern *pattern);