forked from 0ad/0ad
historic_bruno
8a2baec240
Adds text alignment to tooltips, fixes text alignment for dropdowns. This was SVN commit r13051.
177 lines
5.1 KiB
C++
177 lines
5.1 KiB
C++
/* Copyright (C) 2013 Wildfire Games.
|
|
* This file is part of 0 A.D.
|
|
*
|
|
* 0 A.D. is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 0 A.D. 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
// CTooltip: GUI object used for tooltips
|
|
|
|
#include "precompiled.h"
|
|
|
|
#include "CTooltip.h"
|
|
#include "CGUI.h"
|
|
|
|
#include <algorithm>
|
|
|
|
CTooltip::CTooltip()
|
|
{
|
|
// If the tooltip is an object by itself:
|
|
AddSetting(GUIST_float, "buffer_zone");
|
|
AddSetting(GUIST_CGUIString, "caption");
|
|
AddSetting(GUIST_CStrW, "font");
|
|
AddSetting(GUIST_CGUISpriteInstance, "sprite");
|
|
AddSetting(GUIST_int, "delay");
|
|
AddSetting(GUIST_CColor, "textcolor");
|
|
AddSetting(GUIST_float, "maxwidth");
|
|
AddSetting(GUIST_CPos, "offset");
|
|
AddSetting(GUIST_EVAlign, "anchor");
|
|
AddSetting(GUIST_EAlign, "text_align");
|
|
// This is used for tooltips that are hidden/revealed manually by scripts, rather than through the standard tooltip display mechanism
|
|
AddSetting(GUIST_bool, "independent");
|
|
|
|
// If the tooltip is just a reference to another object:
|
|
AddSetting(GUIST_CStr, "use_object");
|
|
AddSetting(GUIST_bool, "hide_object");
|
|
|
|
// Private settings:
|
|
AddSetting(GUIST_CPos, "_mousepos");
|
|
|
|
// Defaults
|
|
GUI<int>::SetSetting(this, "delay", 500);
|
|
GUI<EVAlign>::SetSetting(this, "anchor", EVAlign_Bottom);
|
|
GUI<EAlign>::SetSetting(this, "text_align", EAlign_Left);
|
|
|
|
// Set up a blank piece of text, to be replaced with a more
|
|
// interesting message later
|
|
AddText(new SGUIText());
|
|
}
|
|
|
|
CTooltip::~CTooltip()
|
|
{
|
|
}
|
|
|
|
void CTooltip::SetupText()
|
|
{
|
|
if (!GetGUI())
|
|
return;
|
|
|
|
ENSURE(m_GeneratedTexts.size()==1);
|
|
|
|
CStrW font;
|
|
if (GUI<CStrW>::GetSetting(this, "font", font) != PSRETURN_OK || font.empty())
|
|
font = L"default";
|
|
|
|
float buffer_zone = 0.f;
|
|
GUI<float>::GetSetting(this, "buffer_zone", buffer_zone);
|
|
|
|
CGUIString caption;
|
|
GUI<CGUIString>::GetSetting(this, "caption", caption);
|
|
|
|
float max_width = 0.f;
|
|
GUI<float>::GetSetting(this, "maxwidth", max_width);
|
|
|
|
*m_GeneratedTexts[0] = GetGUI()->GenerateText(caption, font, max_width, buffer_zone, this);
|
|
|
|
|
|
// Position the tooltip relative to the mouse:
|
|
|
|
CPos mousepos, offset;
|
|
EVAlign anchor;
|
|
bool independent;
|
|
|
|
GUI<bool>::GetSetting(this, "independent", independent);
|
|
if (independent)
|
|
mousepos = GetMousePos();
|
|
else
|
|
GUI<CPos>::GetSetting(this, "_mousepos", mousepos);
|
|
|
|
GUI<CPos>::GetSetting(this, "offset", offset);
|
|
GUI<EVAlign>::GetSetting(this, "anchor", anchor);
|
|
|
|
// TODO: Calculate the actual width of the wrapped text and use that.
|
|
// (m_Size.cx is >max_width if the text wraps, which is not helpful)
|
|
float textwidth = std::min(m_GeneratedTexts[0]->m_Size.cx, (float)max_width);
|
|
float textheight = m_GeneratedTexts[0]->m_Size.cy;
|
|
|
|
CClientArea size;
|
|
size.pixel.left = mousepos.x + offset.x;
|
|
size.pixel.right = size.pixel.left + textwidth;
|
|
switch (anchor)
|
|
{
|
|
case EVAlign_Top:
|
|
size.pixel.top = mousepos.y + offset.y;
|
|
size.pixel.bottom = size.pixel.top + textheight;
|
|
break;
|
|
case EVAlign_Bottom:
|
|
size.pixel.bottom = mousepos.y + offset.y;
|
|
size.pixel.top = size.pixel.bottom - textheight;
|
|
break;
|
|
case EVAlign_Center:
|
|
size.pixel.top = mousepos.y + offset.y - textheight/2.f;
|
|
size.pixel.bottom = size.pixel.top + textwidth;
|
|
break;
|
|
default:
|
|
debug_warn(L"Invalid EVAlign!");
|
|
}
|
|
|
|
|
|
// Reposition the tooltip if it's falling off the screen:
|
|
|
|
extern int g_xres, g_yres;
|
|
float screenw = (float)g_xres, screenh = (float)g_yres;
|
|
|
|
if (size.pixel.top < 0.f)
|
|
size.pixel.bottom -= size.pixel.top, size.pixel.top = 0.f;
|
|
else if (size.pixel.bottom > screenh)
|
|
size.pixel.top -= (size.pixel.bottom-screenh), size.pixel.bottom = screenh;
|
|
|
|
if (size.pixel.left < 0.f)
|
|
size.pixel.right -= size.pixel.left, size.pixel.left = 0.f;
|
|
else if (size.pixel.right > screenw)
|
|
size.pixel.left -= (size.pixel.right-screenw), size.pixel.right = screenw;
|
|
|
|
GUI<CClientArea>::SetSetting(this, "size", size);
|
|
}
|
|
|
|
void CTooltip::HandleMessage(SGUIMessage &Message)
|
|
{
|
|
IGUITextOwner::HandleMessage(Message);
|
|
}
|
|
|
|
void CTooltip::Draw()
|
|
{
|
|
float z = 900.f; // TODO: Find a nicer way of putting the tooltip on top of everything else
|
|
|
|
if (GetGUI())
|
|
{
|
|
CGUISpriteInstance *sprite;
|
|
GUI<CGUISpriteInstance>::GetSettingPointer(this, "sprite", sprite);
|
|
|
|
// Normally IGUITextOwner will handle this updating but since SetupText can modify the position
|
|
// we need to call it now *before* we do the rest of the drawing
|
|
if (!m_GeneratedTextsValid)
|
|
{
|
|
SetupText();
|
|
m_GeneratedTextsValid = true;
|
|
}
|
|
|
|
GetGUI()->DrawSprite(*sprite, 0, z, m_CachedActualSize);
|
|
|
|
CColor color;
|
|
GUI<CColor>::GetSetting(this, "textcolor", color);
|
|
|
|
DrawText(0, color, m_CachedActualSize.TopLeft(), z+0.1f);
|
|
}
|
|
}
|