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#include <ClanLib/display.h>
#include <ClanLib/gl.h>
#include "listbox_opengl.h"
#include "stylemanager_opengl.h"
CL_ListBox_OpenGL::CL_ListBox_OpenGL(
CL_ListBox *_listbox,
CL_StyleManager_OpenGL *style)
:
CL_ComponentStyle(_listbox),
listbox(_listbox),
style(style),
resources(style->get_resources())
{
font = CL_Font::load("ListBox/font", resources);
CL_Component *client_area = listbox->get_client_area();
int font_height = font->get_height();
listbox->set_item_height(font_height);
slot_paint_background = listbox->sig_paint().connect(
this, &CL_ListBox_OpenGL::on_paint_background);
slot_paint_listbox = client_area->sig_paint().connect(
this, &CL_ListBox_OpenGL::on_paint_listbox);
}
CL_ListBox_OpenGL::~CL_ListBox_OpenGL()
{
// resources->get_resource("Listbox/font")->unload();
}
void CL_ListBox_OpenGL::on_paint_background()
{
int width = listbox->get_width();
int height = listbox->get_height();
// Outline
CL_Display::draw_rect(0, 0, width, height, 0.5f, 0.5f, 0.5f);
// Fill
CL_Display::fill_rect(1, 1, width - 1, height - 1, 0.0f, 0.0f, 0.0f);
}
void CL_ListBox_OpenGL::on_paint_listbox()
{
int width = listbox->get_client_area()->get_width();
int height = listbox->get_client_area()->get_height();
int pos = 0;
int offset = listbox->get_top_item();
std::vector<CL_ListBox_Item> items = listbox->get_items();
std::vector<CL_ListBox_Item>::iterator it;
for (it = items.begin(); it != items.end(); it++)
{
if (pos < offset)
{
pos++;
continue;
}
if (pos == listbox->get_current_item())
{
CL_Display::fill_rect(
0, (pos - offset) * font->get_height(),
width, (pos + 1 - offset) * font->get_height(),
0.1f, 0.1f, 0.1f);
}
font->print_left(
0,
(pos - offset) * font->get_height(),
(*it).str.c_str());
pos++;
if((pos - offset + 1) * font->get_height() >= height)
break;
}
}
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