created gtkui plugin, started moving stuff out

1 files changed, 150 insertions, 0 deletions

diff --git a/plugins/gtkui/gdkdrawing.c b/plugins/gtkui/gdkdrawing.c
new file mode 100644
index 00000000..621ee92e
--- /dev/null
+++ b/plugins/gtkui/gdkdrawing.c
@@ -0,0 +1,150 @@
+/*
+    DeaDBeeF - ultimate music player for GNU/Linux systems with X11
+    Copyright (C) 2009  Alexey Yakovenko
+
+    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.
+*/
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+#include "drawing.h"
+#include "support.h"
+
+static GdkDrawable *drawable;
+static GdkGC *gc;
+static GdkColor clrfg;
+static GdkColor clrbg;
+static int pango_ready;
+static PangoContext *pangoctx;
+static PangoLayout *pangolayout;
+
+void
+draw_begin (uintptr_t canvas) {
+    drawable = GDK_DRAWABLE (canvas);
+    gc = gdk_gc_new (drawable);
+}
+
+void
+draw_end (void) {
+//    if (pango_ready) {
+//        g_object_unref (pangolayout);
+//        g_object_unref (pangoctx);
+//        pango_ready = 0;
+//    }
+    drawable = NULL;
+    if (gc) {
+        g_object_unref (gc);
+        gc = NULL;
+    }
+}
+
+void
+draw_copy (uintptr_t dest_canvas, uintptr_t src_canvas, int dx, int dy, int sx, int sy, int w, int h) {
+    gdk_draw_drawable (GDK_DRAWABLE (dest_canvas), gc, GDK_DRAWABLE (src_canvas), dx, dy, sx, sy, w, h);
+}
+
+uintptr_t
+draw_load_pixbuf (const char *fname) {
+    return (uintptr_t)create_pixbuf (fname);
+}
+
+void
+draw_pixbuf (uintptr_t dest_canvas, uintptr_t pixbuf, int dx, int dy, int sx, int sy, int w, int h) {
+    gdk_pixbuf_render_to_drawable (GDK_PIXBUF (pixbuf), GDK_DRAWABLE (dest_canvas), gc, sx, sy, dx, dy, w, h, GDK_RGB_DITHER_NONE, 0, 0);
+}
+
+void
+draw_get_canvas_size (uintptr_t canvas, int *w, int *h) {
+	gdk_drawable_get_size (GDK_DRAWABLE (canvas), w, h);
+}
+
+void
+draw_set_fg_color (float *rgb) {
+    clrfg.red = rgb[0] * 0xffff;
+    clrfg.green = rgb[1] * 0xffff;
+    clrfg.blue = rgb[2] * 0xffff;
+    gdk_gc_set_rgb_fg_color (gc, &clrfg);
+}
+
+void
+draw_set_bg_color (float *rgb) {
+    clrbg.red = rgb[0] * 0xffff;
+    clrbg.green = rgb[1] * 0xffff;
+    clrbg.blue = rgb[2] * 0xffff;
+    gdk_gc_set_rgb_bg_color (gc, &clrbg);
+}
+
+void
+draw_line (float x1, float y1, float x2, float y2) {
+    gdk_draw_line (drawable, gc, x1, y1, x2, y2);
+}
+
+void
+draw_rect (float x, float y, float w, float h, int fill) {
+    gdk_draw_rectangle (drawable, gc, fill, x, y, w, h);
+}
+
+static inline void
+draw_init_font (void) {
+    if (!pango_ready) {
+        pangoctx = gdk_pango_context_get ();
+        pangolayout = pango_layout_new (pangoctx);
+        pango_layout_set_ellipsize (pangolayout, PANGO_ELLIPSIZE_END);
+        GtkStyle *style = gtk_widget_get_default_style ();
+        PangoFontDescription *desc = style->font_desc;
+        pango_layout_set_font_description (pangolayout, desc);
+        pango_ready = 1;
+    }
+}
+
+float
+draw_get_font_size (void) {
+    GdkScreen *screen = gdk_screen_get_default ();
+    float dpi = gdk_screen_get_resolution (screen);
+    GtkStyle *style = gtk_widget_get_default_style ();
+    PangoFontDescription *desc = style->font_desc;
+    return (float)pango_font_description_get_size (desc) / PANGO_SCALE * dpi / 72;
+}
+
+void
+draw_text (float x, float y, int width, int align, const char *text) {
+    draw_init_font ();
+    pango_layout_set_width (pangolayout, width*PANGO_SCALE);
+    pango_layout_set_alignment (pangolayout, align ? PANGO_ALIGN_RIGHT : PANGO_ALIGN_LEFT);
+    pango_layout_set_text (pangolayout, text, -1);
+    gdk_draw_layout (drawable, gc, x, y, pangolayout);
+}
+
+void
+draw_text_with_colors (float x, float y, int width, int align, const char *text) {
+    draw_init_font ();
+    pango_layout_set_width (pangolayout, width*PANGO_SCALE);
+    pango_layout_set_alignment (pangolayout, align ? PANGO_ALIGN_RIGHT : PANGO_ALIGN_LEFT);
+    pango_layout_set_text (pangolayout, text, -1);
+    gdk_draw_layout_with_colors (drawable, gc, x, y, pangolayout, &clrfg, &clrbg);
+}
+
+void
+draw_get_text_extents (const char *text, int len, int *w, int *h) {
+    draw_init_font ();
+    pango_layout_set_text (pangolayout, text, len);
+    PangoRectangle ext;
+    pango_layout_get_pixel_extents (pangolayout, &ext, NULL);
+    *w = ext.width;
+    *h = ext.height;
+}