/**
* @brief Displays the dialog box on a surface.
* @param destination_surface the surface
*/
void DialogBox::display(Surface* destination_surface) {
int x = box_dst_position.get_x();
int y = box_dst_position.get_y();
dialog_surface.fill_with_color(Color::get_black());
if (style == STYLE_WITHOUT_FRAME) {
// display a dark rectangle
destination_surface->fill_with_color(Color::get_black(),
box_dst_position);
}
else {
// display the dialog box
box_img.blit(box_src_position, &dialog_surface, box_dst_position);
}
// display the text
for (int i = 0; i < nb_visible_lines; i++) {
line_surfaces[i]->display(&dialog_surface);
}
// display the icon
if (icon_number != -1) {
Rectangle src_position(0, 0, 16, 16);
src_position.set_xy(16 * (icon_number % 10), 16 * (icon_number / 10));
icons_img.blit(src_position, &dialog_surface, icon_dst_position);
question_dst_position.set_x(x + 50);
}
else {
question_dst_position.set_x(x + 18);
}
// display the question arrow
if (dialog.is_question()
&& is_full()
&& !has_more_lines()) {
box_img.blit(question_src_position, &dialog_surface, question_dst_position);
}
// display the end message arrow
if (is_full()) {
end_lines_sprite.display(&dialog_surface, x + 103, y + 56);
}
// final blit
dialog_surface.blit(destination_surface);
}
/**
* \brief Draws a subrectangle of the current frame of this sprite.
* \param region The subrectangle to draw, relative to the origin point.
* It may be bigger than the frame: in this case it will be clipped.
* \param dst_surface The destination surface.
* \param dst_position Coordinates on the destination surface.
* The origin point of the sprite will appear at these coordinates.
*/
void Sprite::raw_draw_region(
const Rectangle& region,
Surface& dst_surface,
const Rectangle& dst_position) {
if (!is_animation_finished()
&& (blink_delay == 0 || blink_is_sprite_visible)) {
get_intermediate_surface().fill_with_color(Color::get_black());
const Rectangle& origin = get_origin();
current_animation->draw(
get_intermediate_surface(),
origin,
current_direction,
current_frame);
// If the region is bigger than the current frame, clip it.
// Otherwise, more than the current frame could be visible.
Rectangle src_position(region);
src_position.add_xy(origin.get_x(), origin.get_y());
const Rectangle& frame_size = get_size();
if (src_position.get_x() < 0) {
src_position.set_width(src_position.get_width() + src_position.get_x());
src_position.set_x(0);
}
if (src_position.get_x() + src_position.get_width() > frame_size.get_width()) {
src_position.set_width(frame_size.get_width() - src_position.get_x());
}
if (src_position.get_y() < 0) {
src_position.set_height(src_position.get_height() + src_position.get_y());
src_position.set_y(0);
}
if (src_position.get_y() + src_position.get_height() > frame_size.get_height()) {
src_position.set_height(frame_size.get_height() - src_position.get_y());
}
if (src_position.get_width() <= 0 || src_position.get_height() <= 0) {
// Nothing remains visible.
return;
}
// Calculate the destination coordinates.
Rectangle dst_position2(dst_position);
dst_position2.add_xy(src_position.get_x(), src_position.get_y()); // Let a space for the part outside the region.
dst_position2.add_xy(-origin.get_x(), -origin.get_y()); // Input coordinates were relative to the origin.
get_intermediate_surface().draw_region(src_position, dst_surface, dst_position2);
}
}
/**
* \brief Redraws the text surface in the case of a bitmap font.
*
* This function is called when there is a change.
*/
void TextSurface::rebuild_bitmap() {
// First count the number of characters in the UTF-8 string.
int num_chars = 0;
for (unsigned i = 0; i < text.size(); i++) {
char current_char = text[i];
if ((current_char & 0xE0) == 0xC0) {
// This character uses two bytes.
++i;
}
++num_chars;
}
// Determine the letter size from the surface size.
Surface& bitmap = *fonts[font_id].bitmap;
const Rectangle& bitmap_size = bitmap.get_size();
int char_width = bitmap_size.get_width() / 128;
int char_height = bitmap_size.get_height() / 16;
surface = new Surface(char_width * num_chars, char_height);
surface->set_transparency_color(bitmap.get_transparency_color());
// Traverse the string again to draw the characters.
Rectangle dst_position(0, 0);
for (unsigned i = 0; i < text.size(); i++) {
char first_byte = text[i];
Rectangle src_position(0, 0, char_width, char_height);
if ((first_byte & 0xE0) != 0xC0) {
// This character uses one byte.
src_position.set_xy(first_byte * char_width, 0);
}
else {
// This character uses two bytes.
++i;
char second_byte = text[i];
uint16_t code_point = ((first_byte & 0x1F) << 6) | (second_byte & 0x3F);
src_position.set_xy((code_point % 128) * char_width,
(code_point / 128) * char_height);
}
bitmap.draw_region(src_position, *surface, dst_position);
dst_position.add_x(char_width - 1);
}
}
