static void rtgui_list_view_calc(struct rtgui_list_view* view)
{
rtgui_rect_t rect;
rt_uint32_t image_width, image_height;
rt_ubase_t text_width, text_height;
rt_ubase_t item_width, item_height;
if (view->items_count == 0) return;
/* get image width and height */
if (view->items[0].image != RT_NULL) {
image_width = view->items[0].image->w;
image_height = view->items[0].image->h;
} else {
image_width = 0;
image_height = 0;
}
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(view)), "HHHHHH", &rect);
text_height = rtgui_rect_height(rect);
text_width = rtgui_rect_width(rect);
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
item_width = (image_width + LIST_MARGIN);
if (item_width < (text_width + LIST_MARGIN)) item_width = text_width + LIST_MARGIN;
item_height = image_height + 8 + text_height + LIST_MARGIN;
if (item_width > item_height) item_height = item_width;
else item_width = item_height;
view->row_items = (rtgui_rect_height(rect) - 2 * LIST_MARGIN) / item_height;
view->col_items = (rtgui_rect_width(rect) - 2 * LIST_MARGIN) / item_width;
view->page_items = view->row_items * view->col_items;
}
static void rtgui_image_hdcmm_blit(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_rect *dst_rect)
{
rt_uint8_t *ptr;
rt_uint16_t y, w, h;
struct rtgui_image_hdcmm *hdc;
RT_ASSERT(image != RT_NULL || dc != RT_NULL || dst_rect != RT_NULL);
/* this dc is not visible */
if (rtgui_dc_get_visible(dc) != RT_TRUE) return;
hdc = (struct rtgui_image_hdcmm *) image;
RT_ASSERT(hdc != RT_NULL);
/* the minimum rect */
if (image->w < rtgui_rect_width(*dst_rect)) w = image->w;
else w = rtgui_rect_width(*dst_rect);
if (image->h < rtgui_rect_height(*dst_rect)) h = image->h;
else h = rtgui_rect_height(*dst_rect);
/* get pixel pointer */
ptr = hdc->pixels;
for (y = 0; y < h; y ++)
{
dc->engine->blit_line(dc, dst_rect->x1, dst_rect->x1 + w, dst_rect->y1 + y, ptr);
ptr += hdc->pitch;
}
}
rtgui_view_t *demo_view_buffer_animation(rtgui_workbench_t* workbench)
{
rtgui_view_t *view;
view = demo_view(workbench, "DC 缓冲区动画");
if (view != RT_NULL)
rtgui_widget_set_event_handler(RTGUI_WIDGET(view), animation_event_handler);
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(view)), "缓冲动画", &text_rect);
if (dc_buffer == RT_NULL)
{
rtgui_rect_t rect;
rect.x1 = 0; rect.x2 = rtgui_rect_width(text_rect) + 2;
rect.y1 = 0; rect.y2 = rtgui_rect_height(text_rect) + 2;
/* 创建 DC Buffer，长 50，宽 50 */
dc_buffer = rtgui_dc_buffer_create(rtgui_rect_width(rect), rtgui_rect_height(rect));
RTGUI_DC_FC(dc_buffer) = RTGUI_WIDGET_BACKGROUND(RTGUI_WIDGET(view));
rtgui_dc_fill_rect(dc_buffer, &rect);
RTGUI_DC_FC(dc_buffer) = black;
rect.x1 = 1; rect.y1 = 1;
rtgui_dc_draw_text(dc_buffer, "缓冲动画", &rect);
}
/* 启动定时器以触发动画 */
timer = rtgui_timer_create(1, RT_TIMER_FLAG_PERIODIC, timeout, (void*)view);
rtgui_timer_start(timer);
return view;
}
static void rtgui_list_view_calc(struct rtgui_list_view* view)
{
/* get image of first item*/
rtgui_image_t *image;
rtgui_rect_t rect;
rt_ubase_t text_width, text_height;
rt_ubase_t item_width, item_height;
if (view->items_count == 0) return;
image = view->items[0].image;
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(view)), "HHHHHH", &rect);
text_height = rtgui_rect_height(rect);
text_width = rtgui_rect_width(rect);
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
item_width = (image->w + LIST_MARGIN);
if (item_width < (text_width + LIST_MARGIN)) item_width = text_width + LIST_MARGIN;
item_height = image->h + 3 + text_height + LIST_MARGIN;
view->row_items = (rtgui_rect_height(rect) - 2 * LIST_MARGIN) / item_height;
view->col_items = (rtgui_rect_width(rect) - 2 * LIST_MARGIN) / item_width;
view->page_items = view->row_items * view->col_items;
}
void rtgui_edit_adjust_scroll(rtgui_scrollbar_t *bar)
{
struct rtgui_edit *edit;
RT_ASSERT(bar != RT_NULL);
if(bar->WIDGET_GROUP != RT_NULL)
{
rtgui_rect_t rect;
rt_uint32_t _left=0,_top=0,_width=RTGUI_DEFAULT_SB_WIDTH,_len=0;
edit = bar->WIDGET_GROUP;
rtgui_widget_get_rect(edit, &rect);
rtgui_widget_rect_to_device(edit,&rect);
if(bar->orient==RTGUI_HORIZONTAL)
{
if(RTGUI_WIDGET_IS_HIDE(edit->hscroll))
{
if(edit->max_rows > edit->row_per_page)
{
RTGUI_WIDGET_SHOW(edit->hscroll);
rtgui_scrollbar_set_line_step(edit->hscroll, 1);
rtgui_scrollbar_set_page_step(edit->hscroll, edit->row_per_page);
rtgui_scrollbar_set_range(edit->hscroll, edit->max_rows);
}
else
RTGUI_WIDGET_HIDE(edit->vscroll);
rtgui_widget_update_clip(RTGUI_WIDGET(edit));
}
else
{
_left = RTGUI_WIDGET_BORDER_SIZE(edit);
_top = rtgui_rect_height(rect)-RTGUI_WIDGET_BORDER_SIZE(edit)-_width;
_len = rtgui_rect_width(rect)-RTGUI_WIDGET_BORDER_SIZE(edit)*2;
if(!RTGUI_WIDGET_IS_HIDE(edit->vscroll))
_len -= _width;
rect.x1 += _left;
rect.y1 += _top;
rect.x2 = rect.x1+_len;
rect.y2 = rect.y1+_width;
}
}
else if(bar->orient==RTGUI_VERTICAL)
{
_left = rtgui_rect_width(rect)-RTGUI_WIDGET_BORDER_SIZE(edit)-_width;
_top = RTGUI_WIDGET_BORDER_SIZE(edit);
_len = rtgui_rect_height(rect)-RTGUI_WIDGET_BORDER_SIZE(edit)*2;
if(!RTGUI_WIDGET_IS_HIDE(edit->hscroll))
_len -= _width;
rect.x1 += _left;
rect.y1 += _top;
rect.x2 = rect.x1+_width;
rect.y2 = rect.y1+_len;
}
rtgui_widget_set_rect(bar,&rect);
}
}
/* get active area length */
rt_uint32_t get_sbar_active_len(rtgui_scrollbar_t *bar)
{
rtgui_rect_t rect;
rtgui_widget_get_rect(RTGUI_WIDGET(bar), &rect);
if(bar->orient & RTGUI_VERTICAL)
return rtgui_rect_height(rect) - 2*rtgui_rect_width(rect);
else
return rtgui_rect_width(rect) - 2*rtgui_rect_height(rect);
}
static void rtgui_image_hdc_blit(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_rect *dst_rect)
{
rt_uint16_t y, w, h;
struct rtgui_image_hdc *hdc;
RT_ASSERT(image != RT_NULL || dc != RT_NULL || dst_rect != RT_NULL);
/* this dc is not visible */
if (rtgui_dc_get_visible(dc) != RT_TRUE) return;
hdc = (struct rtgui_image_hdc *) image->data;
RT_ASSERT(hdc != RT_NULL);
/* the minimum rect */
if (image->w < rtgui_rect_width(*dst_rect)) w = image->w;
else w = rtgui_rect_width(*dst_rect);
if (image->h < rtgui_rect_height(*dst_rect)) h = image->h;
else h = rtgui_rect_height(*dst_rect);
if (hdc->pixels != RT_NULL)
{
rt_uint8_t *ptr;
/* get pixel pointer */
ptr = hdc->pixels;
for (y = 0; y < h; y ++)
{
dc->engine->blit_line(dc, dst_rect->x1, dst_rect->x1 + w, dst_rect->y1 + y, ptr);
ptr += hdc->pitch;
}
}
else
{
rt_uint8_t *ptr;
ptr = rtgui_malloc(hdc->pitch);
if (ptr == RT_NULL) return; /* no memory */
/* seek to the begin of pixel data */
rtgui_filerw_seek(hdc->filerw, hdc->pixel_offset, RTGUI_FILE_SEEK_SET);
for (y = 0; y < h; y ++)
{
/* read pixel data */
if (rtgui_filerw_read(hdc->filerw, ptr, 1, hdc->pitch) != hdc->pitch)
break; /* read data failed */
dc->engine->blit_line(dc, dst_rect->x1, dst_rect->x1 + w, dst_rect->y1 + y, ptr);
}
rtgui_free(ptr);
}
}
rt_uint32_t _rtgui_scrollbar_get_length(rtgui_scrollbar_t *bar)
{
rtgui_rect_t rect;
rt_uint32_t result;
rtgui_widget_get_rect(RTGUI_WIDGET(bar), &rect);
if(bar->orient & RTGUI_VERTICAL)
result = rtgui_rect_height(rect) - 2*rtgui_rect_width(rect) - bar->thumb_len;
else
result = rtgui_rect_width(rect) - 2*rtgui_rect_height(rect) - bar->thumb_len;
return result;
}
static void _calc_width(rtgui_textview_t *textview)
{
rtgui_rect_t rect;
rt_uint16_t width, height;
width = rtgui_rect_width(RTGUI_WIDGET(textview)->extent) - 6;
height = rtgui_rect_height(RTGUI_WIDGET(textview)->extent);
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(textview)), "W", &rect);
textview->line_width = width / rtgui_rect_width(rect) + 1;
textview->line_page_count = height / (rtgui_rect_height(rect) + 3);
/* set minimal value */
if (textview->line_page_count == 0) textview->line_page_count = 1;
}
struct rtgui_radiobox *rtgui_radiobox_create(const char *label, int orient, char **radio_items, int number)
{
struct rtgui_radiobox *radiobox;
radiobox = (struct rtgui_radiobox *) rtgui_widget_create(RTGUI_RADIOBOX_TYPE);
if (radiobox != RT_NULL)
{
rt_uint8_t board_size;
struct rtgui_rect rect;
radiobox->items = radio_items;
radiobox->item_count = number;
radiobox->item_selection = -1;
radiobox->text = rt_strdup(label);
/* set proper of control */
rtgui_radiobox_set_orientation(radiobox, orient);
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(radiobox), "H", &rect);
board_size = rtgui_rect_height(rect);
if (orient == RTGUI_VERTICAL)
{
radiobox->item_size = board_size;
}
else
{
int index;
struct rtgui_font *font;
struct rtgui_rect rect;
/* set init item size */
radiobox->item_size = 0;
font = RTGUI_WIDGET_FONT(radiobox);
for (index = 0; index < number; index ++)
{
rtgui_font_get_metrics(font, radio_items[index], &rect);
if ((board_size + 3 + rtgui_rect_width(rect)) > radiobox->item_size)
radiobox->item_size = board_size + 3 + rtgui_rect_width(rect);
}
}
if (radiobox->item_size < RADIO_BOX_H + 2)
radiobox->item_size = RADIO_BOX_H + 2;
}
return radiobox;
}
static void rtgui_textbox_init_caret(rtgui_textbox_t *box, rt_uint16_t position)
{
int x, y;
rtgui_color_t color;
rtgui_rect_t rect;
int ofs = 0;
RT_ASSERT(box != RT_NULL);
if (!RTGUI_WIDGET_IS_FOCUSED(box))
return;
rtgui_textbox_get_caret_rect(box, &box->caret_rect, position);
rect = box->caret_rect;
rtgui_widget_rect_to_device(RTGUI_WIDGET(box), &rect);
if (box->caret == RT_NULL)
box->caret = rtgui_malloc(rtgui_rect_width(rect) * rtgui_rect_height(rect) * sizeof(rtgui_color_t));
for (x = rect.x1; x < rect.x2; x++)
{
for (y = rect.y1; y < rect.y2; y++)
{
rtgui_graphic_driver_get_default()->ops->get_pixel(&color, x, y);
*(box->caret + ofs) = color;
ofs++;
}
}
}
static void _rtgui_textbox_constructor(rtgui_textbox_t *box)
{
rtgui_rect_t rect;
RTGUI_WIDGET_FLAG(RTGUI_WIDGET(box)) |= RTGUI_WIDGET_FLAG_FOCUSABLE;
rtgui_object_set_event_handler(RTGUI_OBJECT(box), rtgui_textbox_event_handler);
rtgui_widget_set_onfocus(RTGUI_WIDGET(box), rtgui_textbox_onfocus);
rtgui_widget_set_onunfocus(RTGUI_WIDGET(box), rtgui_textbox_onunfocus);
#ifndef RTGUI_USING_SMALL_SIZE
rtgui_widget_set_onkey(RTGUI_WIDGET(box), rtgui_textbox_onkey);
#endif
RTGUI_WIDGET_FOREGROUND(box) = black;
RTGUI_WIDGET_BACKGROUND(box) = white;
/* set default text align */
RTGUI_WIDGET_TEXTALIGN(box) = RTGUI_ALIGN_CENTER_VERTICAL;
/* set proper of control */
box->caret_timer = RT_NULL;
box->caret = RT_NULL;
box->line = box->line_begin = box->position = 0;
box->flag = RTGUI_TEXTBOX_SINGLE;
/* allocate default line buffer */
box->text = RT_NULL;
rtgui_textbox_set_mask_char(box, '*');
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(box), "H", &rect);
box->font_width = rtgui_rect_width(rect);
box->on_enter = RT_NULL;
box->dis_length = 0;
box->first_pos = 0;
}
static void _rtgui_textbox_constructor(rtgui_textbox_t *box)
{
rtgui_rect_t rect = {0, 0, RTGUI_TEXTBOX_DEFAULT_WIDTH, RTGUI_TEXTBOX_DEFAULT_HEIGHT};
rtgui_widget_set_rect(RTGUI_WIDGET(box), &rect);
RTGUI_WIDGET(box)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
rtgui_object_set_event_handler(RTGUI_OBJECT(box), rtgui_textbox_event_handler);
rtgui_widget_set_onfocus(RTGUI_WIDGET(box), rtgui_textbox_onfocus);
rtgui_widget_set_onunfocus(RTGUI_WIDGET(box), rtgui_textbox_onunfocus);
/* set default text align */
RTGUI_WIDGET_TEXTALIGN(RTGUI_WIDGET(box)) = RTGUI_ALIGN_CENTER_VERTICAL;
/* set proper of control */
box->caret_timer = rtgui_timer_create(RT_TICK_PER_SECOND, RT_TIMER_FLAG_PERIODIC,
_rtgui_textbox_caret_timeout, box);
box->line = box->line_begin = box->position = 0;
box->flag = RTGUI_TEXTBOX_SINGLE;
/* allocate default line buffer */
box->text = RT_NULL;
rtgui_font_get_metrics(RTGUI_WIDGET(box)->gc.font, "h", &rect);
box->font_width = rtgui_rect_width(rect);
}
static rt_bool_t app_list_view_onmouse(struct app_list_view *view,
struct rtgui_event_mouse *emouse)
{
if (rtgui_rect_contains_point(&view->view_rect,
emouse->x, emouse->y) == RT_EOK)
{
rt_uint16_t index;
rt_uint16_t old_item;
/* get old item */
old_item = view->current_item;
{
rt_uint16_t x, y;
rt_uint16_t item_height, item_width;
item_width = (rtgui_rect_width(view->view_rect) - 2 * LIST_MARGIN) /
view->col_items;
item_height = (rtgui_rect_height(view->view_rect) - 4) / view->row_items;
x = emouse->x - view->view_rect.x1;
y = emouse->y - view->view_rect.y1;
index = (y / item_height * view->col_items) + x / item_width;
if ((index + (view->current_page * view->page_items) <
view->items_count))
{
if (emouse->button & RTGUI_MOUSE_BUTTON_DOWN)
{
view->current_item = index + (view->current_page *
view->page_items);
/* down event */
// rtgui_list_view_update_icon(view, old_item);
}
else
{
if (view->current_item == index + (view->current_page *
view->page_items))
{
rt_kprintf("mouse up,current item:%d\n", view->current_item);
/* up event */
if (view->on_select != RT_NULL)
{
view->on_select(&view->items[view->current_item]);
}
}
}
}
}
return RT_TRUE;
}
return RT_FALSE;
}
static void gui_win_entry(void* parameter)
{
const struct rtgui_graphic_driver* gd = rtgui_graphic_driver_get_default();
struct rt_messagequeue *mq;
rtgui_win_t *win;
rtgui_button_t *button;
rtgui_point_t p;
rtgui_rect_t rect = {0,0,200,180};
rtgui_label_t *label;
rtgui_font_t *font;
/* 创建GUI应用需要的消息队列 */
mq = rt_mq_create("demo_win", 256, 32, RT_IPC_FLAG_FIFO);
/* 注册当前线程 */
rtgui_thread_register(rt_thread_self(), mq);
/* 窗口居中 */
rtgui_rect_moveto(&rect, (gd->width - rtgui_rect_width(rect))/2, (gd->height - rtgui_rect_height(rect))/2);
/* 创建窗口 */
win = rtgui_win_create(RT_NULL,"demo_win",&rect,RTGUI_WIN_DEFAULT);
if(win == RT_NULL) return;
/* 取得客户区坐标零点 */
p = rtgui_win_get_client_zero(win);
label = rtgui_label_create(win, "hello world!", p.x+5, p.y+5, 100,25);
font = rtgui_font_refer("asc", 12);
RTGUI_WIDGET_FONT(label) = font;
button = rtgui_button_create(win, "Exit", (rtgui_rect_width(rect)-50)/2,
rtgui_rect_height(rect)-40,50,25);
rtgui_button_set_onbutton(button,rtgui_win_close);
rtgui_widget_set_event_handler(win, demo_gui_win_event_handler);
rtgui_win_show(win,RT_FALSE);
/* 执行工作台事件循环 */
rtgui_win_event_loop(win);
demo_win_inited = RT_FALSE;
/* 去注册GUI线程 */
rtgui_thread_deregister(rt_thread_self());
rt_mq_delete(mq);
}
static void rtgui_list_view_onicondraw(struct rtgui_list_view *view, struct rtgui_dc *dc)
{
struct rtgui_rect rect, item_rect, drawing_rect;
rt_ubase_t c, r, item_index; /* col and row index */
rt_ubase_t item_width, item_height;
rtgui_image_t *image;
if (view->items_count == 0) return;
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
item_index = (view->current_item / view->page_items) * view->page_items;
item_width = (rtgui_rect_width(rect) - 2 * LIST_MARGIN) / view->col_items;
item_height = (rtgui_rect_height(rect) - 4) / view->row_items;
image = view->items[0].image;
for (r = 0; r < view->row_items; r ++)
{
for (c = 0; c < view->col_items; c ++)
{
if (item_index < view->items_count)
{
item_rect.y1 = rect.y1 + LIST_MARGIN + r * item_height;
item_rect.x1 = rect.x1 + LIST_MARGIN + c * item_width;
item_rect.x2 = item_rect.x1 + item_width;
item_rect.y2 = item_rect.y1 + item_height;
if (item_index == view->current_item)
{
rtgui_theme_draw_selected(dc, &item_rect);
}
drawing_rect.x1 = drawing_rect.y1 = 0;
drawing_rect.x2 = image->w;
drawing_rect.y2 = image->h;
rtgui_rect_moveto_align(&item_rect, &drawing_rect, RTGUI_ALIGN_CENTER_HORIZONTAL);
drawing_rect.y1 += 5;
drawing_rect.y2 += 5;
rtgui_image_blit(view->items[item_index].image, dc, &drawing_rect);
item_rect.y1 = drawing_rect.y2 + LIST_MARGIN;
item_rect.x1 += 3;
item_rect.x2 -= 3;
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(view), view->items[item_index].name,
&drawing_rect);
rtgui_rect_moveto_align(&item_rect, &drawing_rect, RTGUI_ALIGN_CENTER_HORIZONTAL);
rtgui_dc_draw_text(dc, view->items[item_index].name, &drawing_rect);
item_index ++;
}
else break;
}
}
}
struct rtgui_dc*
rtgui_graphic_driver_get_rect_buffer(const struct rtgui_graphic_driver *driver,
struct rtgui_rect *r)
{
int w, h;
struct rtgui_dc_buffer *buffer;
rt_uint8_t *pixel, *dst;
struct rtgui_rect src, rect;
/* use virtual framebuffer in default */
if (driver == RT_NULL) driver = _current_driver;
if (r == RT_NULL)
{
rtgui_graphic_driver_get_rect(driver, &rect);
}
else
{
rtgui_graphic_driver_get_rect(driver, &src);
rect = *r;
rtgui_rect_intersect(&src, &rect);
}
w = rtgui_rect_width (rect);
h = rtgui_rect_height(rect);
if (!(w && h) || driver->framebuffer == RT_NULL)
return RT_NULL;
/* create buffer DC */
buffer = (struct rtgui_dc_buffer*)rtgui_dc_buffer_create_pixformat(driver->pixel_format, w, h);
if (buffer == RT_NULL)
return (struct rtgui_dc*)buffer;
/* get source pixel */
pixel = (rt_uint8_t*)driver->framebuffer
+ rect.y1 * driver->pitch
+ rect.x1 * rtgui_color_get_bpp(driver->pixel_format);
dst = buffer->pixel;
while (h--)
{
memcpy(dst, pixel, buffer->pitch);
dst += buffer->pitch;
pixel += driver->pitch;
}
return (struct rtgui_dc*)buffer;
}
static void _rtgui_plot_update_scale(struct rtgui_plot *plot)
{
struct rtgui_plot_curve *curve;
struct rtgui_rect rect;
rtgui_plot_curve_dtype max_x = 0;
rtgui_plot_curve_dtype min_x = 0;
rtgui_plot_curve_dtype max_y = 0;
rtgui_plot_curve_dtype min_y = 0;
rt_uint32_t iter = 0;
rtgui_widget_get_rect(RTGUI_WIDGET(plot), &rect);
curve = RTGUI_PLOT_CURVE(
rtgui_mv_view_foreach_in_model(RTGUI_MV_VIEW(plot), &iter));
max_x = curve->max_x;
min_x = curve->min_x;
max_y = curve->max_y;
min_y = curve->min_y;
while (curve)
{
if (curve->max_x > max_x)
max_x = curve->max_x;
if (curve->min_x < min_x)
min_x = curve->min_x;
if (curve->max_y > max_y)
max_y = curve->max_y;
if (curve->min_y < min_y)
min_y = curve->min_y;
curve = RTGUI_PLOT_CURVE(
rtgui_mv_view_foreach_in_model(RTGUI_MV_VIEW(plot), &iter));
}
plot->scale_x = (max_x - min_x + rtgui_rect_width(rect)) / rtgui_rect_width(rect);
plot->scale_y = (max_y - min_y + rtgui_rect_height(rect)) / rtgui_rect_height(rect);
}
void _rtgui_edit_constructor(struct rtgui_edit *edit)
{
rtgui_rect_t font_rect;
RTGUI_WIDGET_FLAG(edit) |= RTGUI_WIDGET_FLAG_FOCUSABLE;
rtgui_widget_set_event_handler(edit, rtgui_edit_event_handler);
rtgui_widget_set_onfocus(edit, rtgui_edit_onfocus);
rtgui_widget_set_onunfocus(edit, rtgui_edit_onunfocus);
RTGUI_WIDGET_FC(edit) = theme.foreground;
RTGUI_WIDGET_BC(edit) = theme.blankspace;
/* set default text align */
RTGUI_WIDGET_TEXTALIGN(edit) = RTGUI_ALIGN_CENTER_VERTICAL;
/* set proper of control */
edit->caret_timer = RT_NULL;
edit->caret = RT_NULL;
edit->tabsize = 4;
edit->margin = 1;
edit->max_rows = edit->max_cols = 0;
edit->visual.x = edit->visual.y = 0;
edit->upleft.x = edit->upleft.y = 0;
edit->row_per_page = edit->col_per_page = 0;
edit->update_buf = RT_NULL;
edit->flag = RTGUI_EDIT_NONE;
#ifdef RTGUI_EDIT_USING_SCROLL
edit->flag |= RTGUI_EDIT_VSCROLL;
edit->flag |= RTGUI_EDIT_HSCROLL;
#endif
/* allocate default line buffer */
edit->bzsize = 16;
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(edit), "H", &font_rect);
edit->font_width = rtgui_rect_width(font_rect);
edit->font_height = rtgui_rect_height(font_rect);
edit->dbl_buf = rtgui_dc_buffer_create(edit->font_width*2+1, edit->font_height+1);
edit->head = RT_NULL;
edit->tail = RT_NULL;
edit->first_line = RT_NULL;
#ifdef RTGUI_EDIT_USING_SCROLL
edit->hscroll = RT_NULL;
edit->vscroll = RT_NULL;
#endif
}
struct rtgui_container* demo_plot(void)
{
struct rtgui_container *cnt;
struct rtgui_plot_curve *curve1, *curve2, *curve3;
struct rtgui_plot *plot;
struct rtgui_rect rect;
cnt = demo_view("ÇúÏß»æͼ");
plot = rtgui_plot_create();
curve1 = rtgui_plot_curve_create();
rtgui_plot_curve_set_y(curve1, sin_ydata);
RTGUI_MV_MODEL(curve1)->length = sizeof(sin_ydata)/sizeof(sin_ydata[0]);
curve1->min_x = 0;
curve1->max_x = sizeof(sin_ydata)/sizeof(sin_ydata[0]);
curve1->min_y = -100;
curve1->min_y = 100;
curve1->color = red;
rtgui_mv_model_add_view(RTGUI_MV_MODEL(curve1), RTGUI_MV_VIEW(plot));
curve2 = rtgui_plot_curve_create();
rtgui_plot_curve_set_y(curve2, cos_ydata);
RTGUI_MV_MODEL(curve2)->length = sizeof(cos_ydata)/sizeof(cos_ydata[0]);
curve2->min_x = 0;
curve2->max_x = sizeof(cos_ydata)/sizeof(cos_ydata[0]);
curve1->min_y = -50;
curve1->min_y = 50;
curve2->color = blue;
rtgui_mv_model_add_view(RTGUI_MV_MODEL(curve2), RTGUI_MV_VIEW(plot));
curve3 = rtgui_plot_curve_create();
rtgui_plot_curve_set_x(curve3, cos_ydata);
rtgui_plot_curve_set_y(curve3, sin_ydata);
RTGUI_MV_MODEL(curve3)->length = sizeof(sin_ydata)/sizeof(sin_ydata[0]);
curve3->color = black;
rtgui_mv_model_add_view(RTGUI_MV_MODEL(curve3), RTGUI_MV_VIEW(plot));
rtgui_widget_get_rect(RTGUI_WIDGET(cnt), &rect);
rtgui_widget_set_rect(RTGUI_WIDGET(plot), &rect);
rtgui_plot_set_base(plot,
-rtgui_rect_width(rect)/3, rtgui_rect_height(rect)/2);
rtgui_container_add_child(cnt, RTGUI_WIDGET(plot));
return cnt;
}
static void rtgui_slider_onmouse(struct rtgui_slider* slider, struct rtgui_event_mouse* event)
{
RT_ASSERT(slider != RT_NULL);
RT_ASSERT(event != RT_NULL);
if (event->button & RTGUI_MOUSE_BUTTON_DOWN &&
event->button & RTGUI_MOUSE_BUTTON_LEFT)
{
int sel;
int range = slider->max - slider->min;
int x0, xsize;
int x;
x0 = 1 + slider->thumb_width/2;
if (slider->orient == RTGUI_VERTICAL)
{
x = event->y - RTGUI_WIDGET(slider)->extent.y1;
x -= x0;
xsize = rtgui_rect_height(RTGUI_WIDGET(slider)->extent) - 2 * x0;
}
else
{
x = event->x - RTGUI_WIDGET(slider)->extent.x1;
x -= x0;
xsize = rtgui_rect_width(RTGUI_WIDGET(slider)->extent) - 2 * x0;
}
if (x <= 0)
{
sel = slider->min;
}
else if (x >= xsize)
{
sel = slider->max;
}
else
{
sel = ((range * x) + xsize/2) / xsize;
sel += slider->min;
}
rtgui_widget_focus(RTGUI_WIDGET(slider));
rtgui_slider_set_value(slider, sel);
if (slider->on_changed != RT_NULL) /* invoke callback function */
slider->on_changed(RTGUI_WIDGET(slider), RT_NULL);
}
}
static void rtgui_textbox_get_caret_rect(rtgui_textbox_t *box, rtgui_rect_t *rect, rt_uint16_t position)
{
int font_h, box_h;
rtgui_rect_t item_rect;
RT_ASSERT(box != RT_NULL);
rtgui_widget_get_rect(RTGUI_WIDGET(box), rect);
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(box), "H", &item_rect);
font_h = rtgui_rect_height(item_rect);
box->font_width = rtgui_rect_width(item_rect);
box_h = rtgui_rect_height(*rect);
rect->x1 += position * box->font_width + 2;
rect->x2 = rect->x1 + 2;
rect->y1 += (box_h - font_h) / 2;
rect->y2 = rect->y1 + font_h;
}
static void rtgui_image_png_blit(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_rect *rect)
{
int x, y;
int w, h;
struct rtgui_blit_info info;
struct rtgui_graphic_driver *hw_driver = rtgui_graphic_driver_get_default();
RT_ASSERT(image != RT_NULL && dc != RT_NULL && rect != RT_NULL);
RT_ASSERT(image->data != RT_NULL);
#define blending(s, d, a) (((unsigned)(((s) - (d)) * (a)) >> 8) + (d))
/* this dc is not visible */
if (rtgui_dc_get_visible(dc) != RT_TRUE) return;
w = _UI_MIN(image->w, rtgui_rect_width(*rect));
h = _UI_MIN(image->h, rtgui_rect_height(*rect));
/* border checking */
if (rect->x1 < 0) { x = -rect->x1; w += rect->x1; }
else x = 0;
if (rect->y1 < 0) { y = -rect->y1; h += rect->y1; }
else y = 0;
if (w < 0 || h < 0) return; /* no drawing */
if ((dc->type == RTGUI_DC_CLIENT) || (dc->type == RTGUI_DC_HW && hw_driver->framebuffer == RT_NULL))
{
int dx, dy, start_x;
rtgui_rect_t r;
rtgui_color_t *pixel;
rt_uint8_t alpha;
rtgui_widget_t *owner = RT_NULL;
if (dc->type == RTGUI_DC_CLIENT)
{
/* get owner and calculate dx,dy */
owner = RTGUI_CONTAINER_OF(dc, struct rtgui_widget, dc_type);
dx = owner->extent.x1; dy = owner->extent.y1;
}
void rtgui_scrollbar_get_thumb_rect(rtgui_scrollbar_t *bar, rtgui_rect_t *erect)
{
rtgui_rect_t rect;
rtgui_widget_get_rect(RTGUI_WIDGET(bar), &rect);
if(bar->orient & RTGUI_VERTICAL)
{
/* vertical scroll bar */
erect->x1 = rect.x1;
erect->x2 = rect.x2;
erect->y1 = rect.y1 + rtgui_rect_width(rect) + get_scrollbar_pos(bar);
erect->y2 = erect->y1 + bar->thumb_len;
}
else
{
/* horizontal scroll bar */
erect->x1 = rect.x1 + rtgui_rect_height(rect) + get_scrollbar_pos(bar);
erect->x2 = erect->x1 + bar->thumb_len;
erect->y1 = rect.y1;
erect->y2 = rect.y2;
}
}
static rt_bool_t rtgui_textbox_onkey(struct rtgui_object *widget, rtgui_event_t *event)
{
rtgui_textbox_t *box = RTGUI_TEXTBOX(widget);
struct rtgui_event_kbd *ekbd = (struct rtgui_event_kbd *)event;
rt_size_t length;
rt_uint16_t posbak = box->position;
RT_ASSERT(box != RT_NULL);
RT_ASSERT(ekbd != RT_NULL);
/* handle the key at down time and nothing to do with up */
if (RTGUI_KBD_IS_UP(ekbd))
return RT_TRUE;
if (box->dis_length == 0)
{
rtgui_rect_t rect;
rtgui_widget_get_rect(RTGUI_WIDGET(box), &rect);
if (box->font_width == 0)
return RT_FALSE;
box->dis_length = ((rtgui_rect_width(rect) - 5) / box->font_width) & ~0x1;
}
length = rt_strlen((char*)box->text);
if (ekbd->key == RTGUIK_DELETE)
{
int chw;
unsigned char *c;
if (TB_ABSPOS(box) == length)
{
goto _exit;
}
chw = _string_char_width((char*)box->text, length, TB_ABSPOS(box)).char_width;
/* remove character */
for (c = &box->text[TB_ABSPOS(box)]; c[chw] != '\0'; c++)
*c = c[chw];
*c = '\0';
}
else if (ekbd->key == RTGUIK_BACKSPACE)
{
/* delete front character */
if (box->position == 0)
{
if(box->first_pos == 0)
goto _exit;
if(box->first_pos > box->dis_length)
{
int head_fix;
int chw = _string_char_width((char*)box->text, length, TB_ABSPOS(box) - 1).char_width;
rt_memmove(box->text + TB_ABSPOS(box) - chw,
box->text + TB_ABSPOS(box),
length - TB_ABSPOS(box) + 1);
head_fix = 0;
/* FIXME: */
if (box->text[box->first_pos - box->dis_length - chw] > 0x80)
{
int i;
for (i = box->first_pos - box->dis_length - chw;
i < box->first_pos;
i++)
{
if (box->text[i] > 0x80)
head_fix++;
else
break;
}
/* if the head is in middle of wide char, move one less
* byte */
head_fix = head_fix % 2;
}
box->first_pos = box->first_pos - box->dis_length
+ head_fix - chw;
box->position = box->dis_length - head_fix;
}
else
{
int chw;
if (box->text[TB_ABSPOS(box) - 1] < 0x80)
{
/* also copy the \0 */
rt_memmove(box->text + TB_ABSPOS(box) - 1,
box->text + TB_ABSPOS(box),
length - TB_ABSPOS(box) + 1);
chw = 1;
}
else
{
rt_memmove(box->text + TB_ABSPOS(box) - 2,
box->text + TB_ABSPOS(box),
length - TB_ABSPOS(box) + 1);
chw = 2;
}
box->position = box->first_pos - chw;
box->first_pos = 0;
}
}
else
{
unsigned char *c;
int chw;
chw = _string_char_width((char*)box->text, length, TB_ABSPOS(box) - 1).char_width;
/* remove character */
for (c = &box->text[TB_ABSPOS(box) - chw]; c[chw] != '\0'; c++)
*c = c[chw];
*c = '\0';
box->position -= chw;
}
}
else if (ekbd->key == RTGUIK_LEFT)
{
int chw;
if (box->first_pos == 0 && box->position == 0)
goto _exit;
if (box->text[TB_ABSPOS(box) - 1] > 0x80)
chw = 2;
else
chw = 1;
/* move to prev */
if (box->position >= chw)
{
box->position -= chw;
}
else
{
if (box->first_pos >= chw)
box->first_pos -= chw;
else
box->first_pos = 0;
}
}
else if (ekbd->key == RTGUIK_RIGHT)
{
int chw;
if ((TB_ABSPOS(box) + 2) <= length &&
box->text[TB_ABSPOS(box)] > 0x80)
chw = 2;
else
chw = 1;
/* move to next */
if (TB_ABSPOS(box) < length)
{
if(box->position + chw <= box->dis_length)
box->position += chw;
else
{
/* always move one wide char when the first char is wide */
if (box->text[box->first_pos] > 0x80)
{
box->first_pos += 2;
if (chw == 2)
{
int i;
int head_fix = 0;
for (i = box->first_pos;
i < box->first_pos + box->dis_length;
i++)
{
if (box->text[i] > 0x80)
head_fix++;
}
head_fix %= 2;
if (head_fix)
{
box->first_pos += 2;
box->position = box->dis_length - 1;
}
}
else if (chw == 1)
/* we have moved the box by 2 bytes but the last one is
* a narrow char */
box->position -= 1;
else
RT_ASSERT(0);
}
else
box->first_pos += chw;
}
}
}
else if (ekbd->key == RTGUIK_HOME)
{
/* move cursor to start */
box->position = 0;
box->first_pos = 0;
}
else if (ekbd->key == RTGUIK_END)
{
/* move cursor to end */
if(length > box->dis_length)
{
box->position = box->dis_length;
box->first_pos = length - box->dis_length;
}
else
{
box->position = length;
box->first_pos = 0;
}
}
else if (ekbd->key == RTGUIK_RETURN)
{
if (box->on_enter != RT_NULL)
{
box->on_enter(box, event);
}
}
else if (ekbd->key == RTGUIK_NUMLOCK)
{
/* change numlock state */
/*
extern void update_number_lock(void);
update_number_lock();
*/
}
else
{
rt_uint16_t chr;
int chw;
if (!(ekbd->unicode || isprint(ekbd->key)))
goto _exit;
if (ekbd->unicode)
{
chr = ekbd->unicode;
chw = 2;
}
else
{
chr = ekbd->key;
chw = 1;
}
if (box->flag & RTGUI_TEXTBOX_DIGIT)
{
/* only input digit */
if (!isdigit(chr))
{
/* exception: '.' and '-' */
if (chr != '.' && chr != '-')return RT_FALSE;
if (chr == '.' && strchr((char*)box->text, '.'))return RT_FALSE;
if (chr == '-')
{
if (length + chw > box->line_length) return RT_FALSE;
if (strchr((char*)box->text, '-'))
{
unsigned char *c;
for (c = &box->text[0]; c != &box->text[length]; c++)
*c = *(c + 1);
box->text[length] = '\0';
box->position --;
goto _exit;
}
else
{
unsigned char *c;
for (c = &box->text[length]; c != &box->text[0]; c--)
*c = *(c - 1);
box->text[0] = '-';
box->text[length + 1] = '\0';
box->position ++;
goto _exit;
}
}
}
}
if (length + chw > box->line_length)
return RT_FALSE;
if (TB_ABSPOS(box) <= length - 1)
{
unsigned char *c;
for (c = &box->text[length + chw - 1];
c != &box->text[TB_ABSPOS(box)];
c -= 1)
*c = *(c - chw);
}
if (chw == 1)
{
box->text[TB_ABSPOS(box)] = chr;
}
else if (chw == 2)
{
box->text[TB_ABSPOS(box)] = chr >> 8;
box->text[TB_ABSPOS(box)+1] = chr & 0xFF;
}
else
{
static rt_bool_t rtgui_list_view_onmouse(struct rtgui_list_view* view, struct rtgui_event_mouse* emouse)
{
rtgui_rect_t rect;
/* calculate selected item */
/* get physical extent information */
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
rtgui_widget_rect_to_device(RTGUI_WIDGET(view), &rect);
if (rtgui_rect_contains_point(&rect, emouse->x, emouse->y) == RT_EOK)
{
rt_uint16_t index;
rt_uint16_t old_item;
/* get old item */
old_item = view->current_item;
switch (view->flag)
{
case RTGUI_LIST_VIEW_LIST:
index = (emouse->y - rect.y1) / (2 + rtgui_theme_get_selected_height());
if ((index < view->items_count) && (index < view->page_items))
{
/* set selected item */
view->current_item = (view->current_item/view->page_items) * view->page_items + index;
if (emouse->button & RTGUI_MOUSE_BUTTON_DOWN)
{
/* down event */
rtgui_list_view_update_list(view, old_item);
}
else
{
/* up event */
if (view->items[view->current_item].action != RT_NULL)
{
view->items[view->current_item].action(view->items[view->current_item].parameter);
}
}
}
break;
case RTGUI_LIST_VIEW_ICON:
{
rt_uint16_t x, y;
rt_uint16_t item_height, item_width;
rt_ubase_t current_page;
item_width = (rtgui_rect_width(rect) - 2 * LIST_MARGIN)/view->col_items;
item_height = (rtgui_rect_height(rect) - 4)/view->row_items;
x = emouse->x - rect.x1;
y = emouse->y - rect.y1;
index = (y / item_height * view->col_items) + x / item_width;
current_page = view->current_item / view->page_items;
if ((index + (current_page * view->page_items) < view->items_count))
{
if (emouse->button & RTGUI_MOUSE_BUTTON_DOWN)
{
view->current_item = index + (current_page * view->page_items);
/* down event */
rtgui_list_view_update_icon(view, old_item);
}
else
{
/* up event */
if (view->items[view->current_item].action != RT_NULL)
{
view->items[view->current_item].action(view->items[view->current_item].parameter);
}
}
}
}
break;
case RTGUI_LIST_VIEW_REPORT:
break;
}
return RT_TRUE;
}
return RT_FALSE;
}
static void rtgui_list_view_update_icon(struct rtgui_list_view* view, rt_uint16_t old_item)
{
struct rtgui_rect rect, item_rect, drawing_rect;
rt_ubase_t c, r; /* col and row index */
rt_ubase_t item_width, item_height;
rtgui_image_t* image;
struct rtgui_dc* dc;
if ((view->items_count == 0) ||
(old_item == view->current_item))
return;
if (old_item/view->page_items != view->current_item/view->page_items)
{
/* it's not a same page, update all */
rtgui_widget_update(RTGUI_WIDGET(view));
return;
}
dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(view));
if (dc == RT_NULL) return;
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
item_width = (rtgui_rect_width(rect) - 2 * LIST_MARGIN)/view->col_items;
item_height = (rtgui_rect_height(rect) - 4)/view->row_items;
image = view->items[0].image;
/* update old item */
r = (old_item % view->page_items)/ view->col_items;
c = (old_item % view->page_items)% view->col_items;
item_rect.y1 = rect.y1 + LIST_MARGIN + r * item_height;
item_rect.x1 = rect.x1 + LIST_MARGIN + c * item_width;
item_rect.x2 = item_rect.x1 + item_width;
item_rect.y2 = item_rect.y1 + item_height;
rtgui_dc_fill_rect(dc, &item_rect);
/* draw image */
drawing_rect.x1 = drawing_rect.y1 = 0;
drawing_rect.x2 = image->w;
drawing_rect.y2 = image->h;
rtgui_rect_moveto_align(&item_rect, &drawing_rect, RTGUI_ALIGN_CENTER_HORIZONTAL);
drawing_rect.y1 += 3; drawing_rect.y2 += 3;
rtgui_image_blit(view->items[old_item].image, dc, &drawing_rect);
/* draw text */
item_rect.y1 = drawing_rect.y2 + LIST_MARGIN;
item_rect.x1 += 3; item_rect.x2 -=3;
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(view)), view->items[old_item].name,
&drawing_rect);
rtgui_rect_moveto_align(&item_rect, &drawing_rect, RTGUI_ALIGN_CENTER_HORIZONTAL);
rtgui_dc_draw_text(dc, view->items[old_item].name, &drawing_rect);
/* update new item as selected */
r = (view->current_item % view->page_items) / view->col_items;
c = (view->current_item % view->page_items) % view->col_items;
item_rect.y1 = rect.y1 + LIST_MARGIN + r * item_height;
item_rect.x1 = rect.x1 + LIST_MARGIN + c * item_width;
item_rect.x2 = item_rect.x1 + item_width;
item_rect.y2 = item_rect.y1 + item_height;
rtgui_theme_draw_selected(dc, &item_rect);
/* draw image */
drawing_rect.x1 = 0;
drawing_rect.y1 = 3;
drawing_rect.x2 = image->w;
drawing_rect.y2 = 3 + image->h;
rtgui_rect_moveto_align(&item_rect, &drawing_rect, RTGUI_ALIGN_CENTER_HORIZONTAL);
rtgui_image_blit(view->items[view->current_item].image, dc, &drawing_rect);
/* draw text */
item_rect.y1 = drawing_rect.y2 + LIST_MARGIN;
item_rect.x1 += 3; item_rect.x2 -=3;
rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(view)),
view->items[view->current_item].name,
&drawing_rect);
rtgui_rect_moveto_align(&item_rect, &drawing_rect, RTGUI_ALIGN_CENTER_HORIZONTAL);
rtgui_dc_draw_text(dc, view->items[view->current_item].name, &drawing_rect);
rtgui_dc_end_drawing(dc);
}
/* blit a dc to another dc */
static void rtgui_dc_buffer_blit(struct rtgui_dc *self, struct rtgui_point *dc_pt, struct rtgui_dc *dest, rtgui_rect_t *rect)
{
int pitch;
rt_uint16_t rect_width, rect_height;
struct rtgui_rect _rect, *dest_rect;
struct rtgui_point dc_point;
struct rtgui_dc_buffer *dc = (struct rtgui_dc_buffer *)self;
if (rtgui_dc_get_visible(dest) == RT_FALSE)
return;
/* use the (0,0) origin point */
if (dc_pt == RT_NULL)
dc_point = rtgui_empty_point;
else
{
dc_point = *dc_pt;
}
rtgui_dc_get_rect(dest, &_rect);
/* use the rect of dest dc */
if (rect == RT_NULL)
{
dest_rect = &_rect;
}
else
{
dest_rect = rect;
if (dest_rect->x1 > _rect.x2 || dest_rect->y1 > _rect.y2)
return;
if (dest_rect->x1 < 0)
{
if (-dest_rect->x1 > dc->width)
return;
dc_point.x += -dest_rect->x1;
dest_rect->x1 = 0;
}
if (dest_rect->y1 < 0)
{
if (-dest_rect->y1 > dc->height)
return;
dc_point.y += -dest_rect->y1;
dest_rect->y1 = 0;
}
if (dest_rect->x2 > _rect.x2)
dest_rect->x2 = _rect.x2;
if (dest_rect->y2 > _rect.y2)
dest_rect->y2 = _rect.y2;
}
if (dc_point.x > dc->width || dc_point.y > dc->height)
return;
/* get the minimal width and height */
rect_width = _UI_MIN(rtgui_rect_width(*dest_rect), dc->width - dc_point.x);
rect_height = _UI_MIN(rtgui_rect_height(*dest_rect), dc->height - dc_point.y);
if ((dest->type == RTGUI_DC_HW) || (dest->type == RTGUI_DC_CLIENT))
{
int index;
rt_uint8_t *line_ptr, *pixels;
rtgui_blit_line_func blit_line;
struct rtgui_graphic_driver *hw_driver;
hw_driver = rtgui_graphic_driver_get_default();
/* prepare pixel line */
pixels = _dc_get_pixel(dc, dc_point.x, dc_point.y);
if (hw_driver->bits_per_pixel == _dc_get_bits_per_pixel(dc))
{
if (dest->type == RTGUI_DC_HW && hw_driver->framebuffer != RT_NULL)
{
rt_uint8_t *hw_pixels;
struct rtgui_dc_hw *hw;
hw = (struct rtgui_dc_hw*)dest;
/* NOTES: the rect of DC is the logic coordination.
* It should be converted to client
*/
if (dest_rect != &_rect)
{
/* use local rect */
_rect = *dest_rect;
dest_rect = &_rect;
}
rtgui_rect_moveto(dest_rect, hw->owner->extent.x1, hw->owner->extent.y1);
pitch = rtgui_color_get_bpp(hw_driver->pixel_format) * rect_width;
hw_pixels = (rt_uint8_t*)(hw_driver->framebuffer + dest_rect->y1 * hw_driver->pitch +
dest_rect->x1 * rtgui_color_get_bpp(hw_driver->pixel_format));
/* do the blit with memory copy */
for (index = 0; index < rect_height; index ++)
{
rt_memcpy(hw_pixels, pixels, pitch);
pixels += dc->pitch;
hw_pixels += hw_driver->pitch;
}
}
else
{
/* it's the same bits per pixel, draw it directly */
for (index = dest_rect->y1; index < dest_rect->y1 + rect_height; index++)
{
dest->engine->blit_line(dest, dest_rect->x1, dest_rect->x1 + rect_width, index, pixels);
pixels += dc->pitch;
}
}
}
else
{
struct rtgui_graphic_driver *hw_driver;
hw_driver = rtgui_graphic_driver_get_default();
if ((dc->pixel_format == RTGRAPHIC_PIXEL_FORMAT_ARGB888) && (dest->type == RTGUI_DC_HW) &&
(hw_driver->framebuffer != RT_NULL) &&
(hw_driver->pixel_format == RTGRAPHIC_PIXEL_FORMAT_RGB565))
{
/* do the fast ARGB to RGB565 blit */
struct rtgui_blit_info info;
struct rtgui_widget *owner;
/* blit source */
info.src = _dc_get_pixel(dc, dc_point.x, dc_point.y);
info.src_fmt = dc->pixel_format;
info.src_h = rect_height;
info.src_w = rect_width;
info.src_pitch = dc->pitch;
info.src_skip = info.src_pitch - info.src_w * rtgui_color_get_bpp(dc->pixel_format);
owner = ((struct rtgui_dc_hw*)dest)->owner;
/* blit destination */
info.dst = (rt_uint8_t*)hw_driver->framebuffer;
info.dst = info.dst + (owner->extent.y1 + dest_rect->y1) * hw_driver->pitch +
(owner->extent.x1 + dest_rect->x1) * rtgui_color_get_bpp(hw_driver->pixel_format);
info.dst_fmt = hw_driver->pixel_format;
info.dst_h = rect_height;
info.dst_w = rect_width;
info.dst_pitch = hw_driver->pitch;
info.dst_skip = info.dst_pitch - info.dst_w * rtgui_color_get_bpp(hw_driver->pixel_format);
rtgui_blit(&info);
}
else
{
/* get blit line function */
blit_line = rtgui_blit_line_get(_UI_BITBYTES(hw_driver->bits_per_pixel), rtgui_color_get_bpp(dc->pixel_format));
/* calculate pitch */
pitch = rect_width * rtgui_color_get_bpp(dc->pixel_format);
/* create line buffer */
line_ptr = (rt_uint8_t *) rtgui_malloc(rect_width * _UI_BITBYTES(hw_driver->bits_per_pixel));
/* draw each line */
for (index = dest_rect->y1; index < dest_rect->y1 + rect_height; index ++)
{
/* blit on line buffer */
blit_line(line_ptr, (rt_uint8_t *)pixels, pitch);
pixels += dc->pitch;
/* draw on hardware dc */
dest->engine->blit_line(dest, dest_rect->x1, dest_rect->x1 + rect_width, index, line_ptr);
}
/* release line buffer */
rtgui_free(line_ptr);
}
}
}
else if (dest->type == RTGUI_DC_BUFFER)
{
struct rtgui_dc_buffer *dest_dc = (struct rtgui_dc_buffer*)dest;
if (dest_dc->pixel_format == dc->pixel_format && dest_dc->pixel_format == RTGRAPHIC_PIXEL_FORMAT_RGB565)
{
int index;
rt_uint8_t *pixels, *dest_pixels;
/* get pitch */
pitch = rect_width * rtgui_color_get_bpp(dc->pixel_format);
pixels = _dc_get_pixel(dc, dc_point.x, dc_point.y);
dest_pixels = _dc_get_pixel(dest_dc, dest_rect->x1, dest_rect->y1);
for (index = 0; index < rect_height; index ++)
{
rt_memcpy(dest_pixels, pixels, pitch);
pixels += dc->pitch;
dest_pixels += dest_dc->pitch;
}
}
else /* use rtgui_blit to handle buffer blit */
{
/* do the fast ARGB to RGB565 blit */
struct rtgui_blit_info info;
/* blit source */
info.src = _dc_get_pixel(dc, dc_point.x, dc_point.y);
info.src_fmt = dc->pixel_format;
info.src_h = rect_height;
info.src_w = rect_width;
info.src_pitch = dc->pitch;
info.src_skip = info.src_pitch - info.src_w * rtgui_color_get_bpp(dc->pixel_format);
/* blit destination */
info.dst = _dc_get_pixel(dest_dc, dest_rect->x1, dest_rect->y1);
info.dst_fmt = dest_dc->pixel_format;
info.dst_h = rect_height;
info.dst_w = rect_width;
info.dst_pitch = dest_dc->pitch;
info.dst_skip = info.dst_pitch - info.dst_w * rtgui_color_get_bpp(dest_dc->pixel_format);
rtgui_blit(&info);
}
}
}
static void rtgui_image_png_blit(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_rect *rect)
{
rt_uint16_t x, y, w, h;
rtgui_color_t *ptr;
struct rtgui_image_png *png;
int fg_maxsample;
int ialpha;
float alpha;
rtgui_color_t color;
rtgui_color_t c, bgcolor;
int fc[3], bc[3];
struct rtgui_graphic_driver *hwdev = rtgui_graphic_get_device();
RT_ASSERT(image != RT_NULL && dc != RT_NULL && rect != RT_NULL);
RT_ASSERT(image->data != RT_NULL);
png = (struct rtgui_image_png *) image->data;
w = _UI_MIN(image->w, rtgui_rect_width(*rect));
h = _UI_MIN(image->h, rtgui_rect_height(*rect));
fg_maxsample = (1 << png->info_ptr->bit_depth) - 1;
if (png->pixels != RT_NULL)
{
ptr = (rtgui_color_t *)png->pixels;
bgcolor = RTGUI_DC_BC(dc);
bc[0] = RTGUI_RGB_R(bgcolor);
bc[1] = RTGUI_RGB_G(bgcolor);
bc[2] = RTGUI_RGB_B(bgcolor);
/* draw each point within dc */
for (y = 0; y < h; y ++)
{
for (x = 0; x < w; x++)
{
c = *ptr;
ialpha = RTGUI_RGB_A(c);
if (ialpha == 0)
{
/*
* Foreground image is transparent hear.
* If the background image is already in the frame
* buffer, there is nothing to do.
*/
}
else if (ialpha == fg_maxsample)
{
/*
* Copy foreground pixel to frame buffer.
*/
rtgui_dc_draw_color_point(dc, x + rect->x1, y + rect->y1, c);
}
else
{
/* output = alpha * foreground + (1-alpha) * background */
/*
* Compositing is necessary.
* Get floating-point alpha and its complement.
* Note: alpha is always linear: gamma does not
* affect it.
*/
fc[0] = RTGUI_RGB_R(c);
fc[1] = RTGUI_RGB_G(c);
fc[2] = RTGUI_RGB_B(c);
alpha = (float) ialpha / fg_maxsample;
color = RTGUI_RGB((rt_uint8_t)(fc[0] * alpha + bc[0] * (1 - alpha)),
(rt_uint8_t)(fc[1] * alpha + bc[1] * (1 - alpha)),
(rt_uint8_t)(fc[2] * alpha + bc[2] * (1 - alpha)));
rtgui_dc_draw_color_point(dc, x + rect->x1, y + rect->y1, color);
}
/* move to next color buffer */
ptr ++;
}
}
}
else
{
png_bytep row;
png_bytep data;
row = (png_bytep) rtgui_malloc(png_get_rowbytes(png->png_ptr, png->info_ptr));
if (row == RT_NULL) return ;
switch (png->info_ptr->color_type)
{
case PNG_COLOR_TYPE_RGB:
for (y = 0; y < h; y++)
{
png_read_row(png->png_ptr, row, png_bytep_NULL);
for (x = 0; x < w; x++)
{
data = &(row[x * 3]);
rtgui_dc_draw_color_point(dc, x + rect->x1, y + rect->y1,
RTGUI_RGB(data[0], data[1], data[2]));
}
}
break;
case PNG_COLOR_TYPE_RGBA:
for (y = 0; y < h; y++)
{
png_read_row(png->png_ptr, row, png_bytep_NULL);
for (x = 0; x < w; x++)
{
data = &(row[x * 4]);
if (data[3] != 0)
{
rtgui_dc_draw_color_point(dc, x + rect->x1, y + rect->y1,
RTGUI_ARGB(data[3], data[0], data[1], data[2]));
}
}
}
break;
case PNG_COLOR_TYPE_PALETTE:
for (y = 0; y < h; y++)
{
png_read_row(png->png_ptr, row, png_bytep_NULL);
for (x = 0; x < w; x++)
{
data = &(row[x]);
rtgui_dc_draw_color_point(dc, x + rect->x1, y + rect->y1,
RTGUI_ARGB(0, png->info_ptr->palette[data[0]].red,
png->info_ptr->palette[data[0]].green,
png->info_ptr->palette[data[0]].blue));
}
}
default:
break;
};
rtgui_free(row);
}
}
rt_bool_t demo_bitmap_showbox(struct rtgui_object* object, struct rtgui_event* event)
{
rtgui_container_t *container;
rtgui_widget_t *widget;
RT_ASSERT(object != RT_NULL);
container = RTGUI_CONTAINER(object);
widget = RTGUI_WIDGET(object);
if(event->type == RTGUI_EVENT_PAINT)
{
int w, h;
rtgui_rect_t rect;
struct rtgui_dc *dc;
struct rtgui_image *image = bmpdt.showimg;
/* 如果从其他标签切换到当前标签, image应该是RT_NULL, 重置它 */
if(image == RT_NULL && bmpdt.image != RT_NULL)
{
image = bmpdt.image;
bmpdt.scale = 1.0f;
bmpdt.angle = 0.0f;
rtgui_widget_get_rect(RTGUI_WIDGET(bmpdt.showbox), &bmpdt.lastrect);
rtgui_rect_inflate(&bmpdt.lastrect, -RTGUI_WIDGET_BORDER(bmpdt.showbox));
}
dc = rtgui_dc_begin_drawing(widget);
if (dc == RT_NULL)
return RT_FALSE;
rtgui_widget_get_rect(widget, &rect);
/* 在绘制边框后, 再将rect缩小填充背景, 可以降低闪烁现象 */
rtgui_dc_draw_border(dc, &rect, RTGUI_WIDGET_BORDER_STYLE(widget));
rtgui_rect_inflate(&rect, -RTGUI_WIDGET_BORDER(widget));
w = rtgui_rect_width(bmpdt.lastrect);
h = rtgui_rect_height(bmpdt.lastrect);
if(w > rtgui_rect_width(rect)) w = rtgui_rect_width(rect);
if(h > rtgui_rect_height(rect)) h = rtgui_rect_height(rect);
/* fill container with background */
/*
* 参数lastrect会记录上一次绘图所用区域
* 每次重绘时,只需与lastrect比较,即可得知那些背景区域需要刷新
* 例如当放大图片时,lastrect比当前绘图区小,所有无需更新背景区,
* 当缩小图片时, 也仅需要更新绘图区比lastrect大的区域.
*/
if(image != RT_NULL)
{ /* 减少不必要的绘图 */
rtgui_rect_t rc;
if(w > image->w)
{
rc.x1 = image->w;
rc.y1 = bmpdt.lastrect.y1;
rc.x2 = bmpdt.lastrect.x2;
rc.y2 = (h > image->h) ? image->h : bmpdt.lastrect.y2;
rtgui_dc_fill_rect(dc, &rc);
}
if(h > image->h)
{
rc.x1 = bmpdt.lastrect.x1;
rc.y1 = image->h;
rc.x2 = bmpdt.lastrect.x2;
rc.y2 = bmpdt.lastrect.y2;
rtgui_dc_fill_rect(dc, &rc);
}
}
else
rtgui_dc_fill_rect(dc, &bmpdt.lastrect);
/* 将图像数据blit到画布上 */
if (image != RT_NULL)
{
int value;
rtgui_image_blit(image, dc, &rect);
bmpdt.lastrect.x1 = bmpdt.lastrect.y1 = RTGUI_WIDGET_BORDER(bmpdt.showbox);
if(image->w > rtgui_rect_width(rect))
value = rtgui_rect_width(rect);
else
value = image->w;
bmpdt.lastrect.x2 = bmpdt.lastrect.x1 + value;
if(image->h > rtgui_rect_height(rect))
value = rtgui_rect_height(rect);
else
value = image->h;
bmpdt.lastrect.y2 = bmpdt.lastrect.y1 + value;
}
rtgui_dc_end_drawing(dc);
return RT_FALSE;
}
return rtgui_container_event_handler(object, event);
}
