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Two new lcd/multi screen api convinience functions: draw_viewport(), fill_viewport().

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They work as the drawrect/fillrect pendants but work on a viewport basis; pass NULL to draw the current viewport (the one set with set_viewport()).
In conjunction with action_get_touchscreen_press_in_vp() it should be less of a pain to draw buttons and get presses on them.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28239 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-10-10 23:15:05 +00:00
parent 752c91b50d
commit 8a0152bd4a
9 changed files with 47 additions and 14 deletions
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16
apps/plugins/lib/pluginlib_touchscreen.c
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@ -88,7 +88,8 @@ void touchbutton_draw(struct touchbutton *data, int num_buttons) {
int i;
/* These store the width and height of the title offset */
int title_width, title_height;
struct screen *lcd = rb->screens[SCREEN_MAIN];
/* Loop over all the elements in data */
for(i=0; i<num_buttons; i++) {
/* Is this a visible button? */
@ -96,10 +97,10 @@ void touchbutton_draw(struct touchbutton *data, int num_buttons) {
/* Set the current viewport to the button so that all drawing
* operations are within the button location.
*/
rb->screens[SCREEN_MAIN]->set_viewport(&data[i].vp);
lcd->set_viewport(&data[i].vp);
/* Get the string size so that the title can be centered. */
rb->lcd_getstringsize(data[i].title, &title_width, &title_height);
lcd->getstringsize(data[i].title, &title_width, &title_height);
/* Center the title vertically */
title_height=(data[i].vp.height-title_height)/2;
@ -121,16 +122,17 @@ void touchbutton_draw(struct touchbutton *data, int num_buttons) {
* print the title.
*/
if(title_width==0) {
rb->lcd_puts_scroll(0, 0, data[i].title);
lcd->puts_scroll_style_xyoffset(0, 0, data[i].title,
STYLE_DEFAULT, 0, title_height);
} else {
rb->lcd_putsxy(title_width, title_height, data[i].title);
lcd->putsxy(title_width, title_height, data[i].title);
}
/* Draw bounding box around the button location. */
rb->lcd_drawrect( 0, 0, data[i].vp.width, data[i].vp.height);
lcd->draw_viewport(NULL);
}
}
rb->screens[SCREEN_MAIN]->set_viewport(NULL); /* Go back to the default viewport */
lcd->set_viewport(NULL); /* Go back to the default viewport */
}
/*******************************************************************************