Initial multi screen support by Kévin Ferrare (Patch #1318081)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7666 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 126 insertions, 0 deletions

diff --git a/apps/gui/buttonbar.c b/apps/gui/buttonbar.c
new file mode 100644
index 0000000..be87b1b
--- /dev/null
+++ b/apps/gui/buttonbar.c
@@ -0,0 +1,126 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) Linus Nielsen Feltzing (2002), Kévin FERRARE (2005)
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "config.h"
+#include "buttonbar.h"
+
+#ifdef HAS_BUTTONBAR
+
+#include "lcd.h"
+#include "font.h"
+#include "string.h"
+#include "settings.h"
+
+void gui_buttonbar_init(struct gui_buttonbar * buttonbar)
+{
+    gui_buttonbar_unset(buttonbar);
+}
+
+void gui_buttonbar_set_display(struct gui_buttonbar * buttonbar,
+                               struct screen * display)
+{
+    buttonbar->display = display;
+}
+
+void gui_buttonbar_draw_button(struct gui_buttonbar * buttonbar, int num)
+{
+    int xpos, ypos, button_width, text_width;
+    int fw, fh;
+    struct screen * display = buttonbar->display;
+    
+    display->setfont(FONT_SYSFIXED);
+    display->getstringsize("M", &fw, &fh);
+
+    button_width = display->width/BUTTONBAR_MAX_BUTTONS;
+    xpos = num * button_width;
+    ypos = display->height - fh;
+
+    if(buttonbar->caption[num][0] != 0)
+    {
+        /* center the text */
+        text_width = fw * strlen(buttonbar->caption[num]);
+        display->putsxy(xpos + (button_width - text_width)/2,
+                        ypos, buttonbar->caption[num]);
+    }
+
+    display->set_drawmode(DRMODE_COMPLEMENT);
+    display->fillrect(xpos, ypos, button_width - 1, fh);
+    display->set_drawmode(DRMODE_SOLID);
+    display->setfont(FONT_UI);
+}
+
+void gui_buttonbar_set(struct gui_buttonbar * buttonbar,
+                       const char *caption1,
+                       const char *caption2,
+                       const char *caption3)
+{
+    gui_buttonbar_unset(buttonbar);
+    if(caption1)
+    {
+        strncpy(buttonbar->caption[0], caption1, 7);
+        buttonbar->caption[0][7] = 0;
+    }
+    if(caption2)
+    {
+        strncpy(buttonbar->caption[1], caption2, 7);
+        buttonbar->caption[1][7] = 0;
+    }
+    if(caption3)
+    {
+        strncpy(buttonbar->caption[2], caption3, 7);
+        buttonbar->caption[2][7] = 0;
+    }
+}
+
+void gui_buttonbar_unset(struct gui_buttonbar * buttonbar)
+{
+    int i;
+    for(i = 0;i < BUTTONBAR_MAX_BUTTONS;++i)
+        buttonbar->caption[i][0] = 0;
+}
+
+void gui_buttonbar_draw(struct gui_buttonbar * buttonbar)
+{
+    struct screen * display = buttonbar->display;
+    int i;
+    
+    display->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
+    display->fillrect(0, display->height - BUTTONBAR_HEIGHT,
+                      display->width, BUTTONBAR_HEIGHT);
+    display->set_drawmode(DRMODE_SOLID);
+
+    for(i = 0;i < BUTTONBAR_MAX_BUTTONS;++i)
+        gui_buttonbar_draw_button(buttonbar, i);
+    display->update_rect(0, display->height - BUTTONBAR_HEIGHT,
+                         display->width, BUTTONBAR_HEIGHT);
+}
+
+bool gui_buttonbar_isset(struct gui_buttonbar * buttonbar)
+{
+    /* If all buttons are unset, the button bar is considered disabled */
+    if(!global_settings.buttonbar)
+        return(false);
+    int i;
+    for(i = 0;i < BUTTONBAR_MAX_BUTTONS;++i)
+        if(buttonbar->caption[i] != 0)
+            return true;
+    return false;
+}
+
+#endif /* HAS_BUTTONBAR */