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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "guiInventoryList.h"
#include "guiFormSpecMenu.h"
#include "client/hud.h"
#include "client/client.h"
GUIInventoryList::GUIInventoryList(gui::IGUIEnvironment *env,
gui::IGUIElement *parent,
s32 id,
const core::rect<s32> &rectangle,
InventoryManager *invmgr,
const InventoryLocation &inventoryloc,
const std::string &listname,
const v2s32 &geom,
const s32 start_item_i,
const v2s32 &slot_size,
const v2f32 &slot_spacing,
GUIFormSpecMenu *fs_menu,
const Options &options,
gui::IGUIFont *font) :
gui::IGUIElement(gui::EGUIET_ELEMENT, env, parent, id, rectangle),
m_invmgr(invmgr),
m_inventoryloc(inventoryloc),
m_listname(listname),
m_geom(geom),
m_start_item_i(start_item_i),
m_slot_size(slot_size),
m_slot_spacing(slot_spacing),
m_fs_menu(fs_menu),
m_options(options),
m_font(font),
m_hovered_i(-1),
m_already_warned(false)
{
}
void GUIInventoryList::draw()
{
if (!IsVisible)
return;
Inventory *inv = m_invmgr->getInventory(m_inventoryloc);
if (!inv) {
if (!m_already_warned) {
warningstream << "GUIInventoryList::draw(): "
<< "The inventory location "
<< "\"" << m_inventoryloc.dump() << "\" doesn't exist"
<< std::endl;
m_already_warned = true;
}
return;
}
InventoryList *ilist = inv->getList(m_listname);
if (!ilist) {
if (!m_already_warned) {
warningstream << "GUIInventoryList::draw(): "
<< "The inventory list \"" << m_listname << "\" @ \""
<< m_inventoryloc.dump() << "\" doesn't exist"
<< std::endl;
m_already_warned = true;
}
return;
}
m_already_warned = false;
video::IVideoDriver *driver = Environment->getVideoDriver();
Client *client = m_fs_menu->getClient();
const ItemSpec *selected_item = m_fs_menu->getSelectedItem();
core::rect<s32> imgrect(0, 0, m_slot_size.X, m_slot_size.Y);
v2s32 base_pos = AbsoluteRect.UpperLeftCorner;
const s32 list_size = (s32)ilist->getSize();
for (s32 i = 0; i < m_geom.X * m_geom.Y; i++) {
s32 item_i = i + m_start_item_i;
if (item_i >= list_size)
break;
v2s32 p((i % m_geom.X) * m_slot_spacing.X,
(i / m_geom.X) * m_slot_spacing.Y);
core::rect<s32> rect = imgrect + base_pos + p;
ItemStack item = ilist->getItem(item_i);
bool selected = selected_item
&& m_invmgr->getInventory(selected_item->inventoryloc) == inv
&& selected_item->listname == m_listname
&& selected_item->i == item_i;
core::rect<s32> clipped_rect(rect);
clipped_rect.clipAgainst(AbsoluteClippingRect);
bool hovering = m_hovered_i == item_i;
ItemRotationKind rotation_kind = selected ? IT_ROT_SELECTED :
(hovering ? IT_ROT_HOVERED : IT_ROT_NONE);
// layer 0
if (hovering) {
driver->draw2DRectangle(m_options.slotbg_h, rect, &AbsoluteClippingRect);
} else {
driver->draw2DRectangle(m_options.slotbg_n, rect, &AbsoluteClippingRect);
}
// Draw inv slot borders
if (m_options.slotborder) {
s32 x1 = rect.UpperLeftCorner.X;
s32 y1 = rect.UpperLeftCorner.Y;
s32 x2 = rect.LowerRightCorner.X;
s32 y2 = rect.LowerRightCorner.Y;
s32 border = 1;
core::rect<s32> clipping_rect = Parent ? Parent->getAbsoluteClippingRect()
: core::rect<s32>();
core::rect<s32> *clipping_rect_ptr = Parent ? &clipping_rect : nullptr;
driver->draw2DRectangle(m_options.slotbordercolor,
core::rect<s32>(v2s32(x1 - border, y1 - border),
v2s32(x2 + border, y1)), clipping_rect_ptr);
driver->draw2DRectangle(m_options.slotbordercolor,
core::rect<s32>(v2s32(x1 - border, y2),
v2s32(x2 + border, y2 + border)), clipping_rect_ptr);
driver->draw2DRectangle(m_options.slotbordercolor,
core::rect<s32>(v2s32(x1 - border, y1),
v2s32(x1, y2)), clipping_rect_ptr);
driver->draw2DRectangle(m_options.slotbordercolor,
core::rect<s32>(v2s32(x2, y1),
v2s32(x2 + border, y2)), clipping_rect_ptr);
}
// layer 1
if (selected)
item.takeItem(m_fs_menu->getSelectedAmount());
if (!item.empty()) {
// Draw item stack
drawItemStack(driver, m_font, item, rect, &AbsoluteClippingRect,
client, rotation_kind);
// Add hovering tooltip
if (hovering && !selected_item) {
std::string tooltip = item.getDescription(client->idef());
if (m_fs_menu->doTooltipAppendItemname())
tooltip += "\n[" + item.name + "]";
m_fs_menu->addHoveredItemTooltip(tooltip);
}
}
}
IGUIElement::draw();
}
bool GUIInventoryList::OnEvent(const SEvent &event)
{
if (event.EventType != EET_MOUSE_INPUT_EVENT) {
if (event.EventType == EET_GUI_EVENT &&
event.GUIEvent.EventType == EGET_ELEMENT_LEFT) {
// element is no longer hovered
m_hovered_i = -1;
}
return IGUIElement::OnEvent(event);
}
m_hovered_i = getItemIndexAtPos(v2s32(event.MouseInput.X, event.MouseInput.Y));
if (m_hovered_i != -1)
return IGUIElement::OnEvent(event);
// no item slot at pos of mouse event => allow clicking through
// find the element that would be hovered if this inventorylist was invisible
bool was_visible = IsVisible;
IsVisible = false;
IGUIElement *hovered =
Environment->getRootGUIElement()->getElementFromPoint(
core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y));
// if the player clicks outside of the formspec window, hovered is not
// m_fs_menu, but some other weird element (with ID -1). we do however need
// hovered to be m_fs_menu as item dropping when clicking outside of the
// formspec window is handled in its OnEvent callback
if (!hovered || hovered->getID() == -1)
hovered = m_fs_menu;
bool ret = hovered->OnEvent(event);
IsVisible = was_visible;
return ret;
}
s32 GUIInventoryList::getItemIndexAtPos(v2s32 p) const
{
// no item if no gui element at pointer
if (!IsVisible || AbsoluteClippingRect.getArea() <= 0 ||
!AbsoluteClippingRect.isPointInside(p))
return -1;
// there can not be an item if the inventory or the inventorylist does not exist
Inventory *inv = m_invmgr->getInventory(m_inventoryloc);
if (!inv)
return -1;
InventoryList *ilist = inv->getList(m_listname);
if (!ilist)
return -1;
core::rect<s32> imgrect(0, 0, m_slot_size.X, m_slot_size.Y);
v2s32 base_pos = AbsoluteRect.UpperLeftCorner;
// instead of looping through each slot, we look where p would be in the grid
s32 i = (p.X - base_pos.X) / (s32)m_slot_spacing.X
+ m_geom.X * ((p.Y - base_pos.Y) / (s32)m_slot_spacing.Y);
v2s32 p0((i % m_geom.X) * m_slot_spacing.X,
(i / m_geom.X) * m_slot_spacing.Y);
core::rect<s32> rect = imgrect + base_pos + p0;
rect.clipAgainst(AbsoluteClippingRect);
if (rect.getArea() > 0 && rect.isPointInside(p) &&
i + m_start_item_i < (s32)ilist->getSize())
return i + m_start_item_i;
return -1;
}
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