forked from 0ad/0ad
160 lines
4.3 KiB
C++
160 lines
4.3 KiB
C++
// 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_CStr, "font");
|
|
AddSetting(GUIST_CGUISpriteInstance, "sprite");
|
|
AddSetting(GUIST_int, "delay");
|
|
AddSetting(GUIST_CColor, "textcolor");
|
|
AddSetting(GUIST_int, "maxwidth");
|
|
AddSetting(GUIST_CPos, "offset");
|
|
AddSetting(GUIST_EVAlign, "anchor");
|
|
|
|
// 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);
|
|
|
|
// 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;
|
|
|
|
assert(m_GeneratedTexts.size()==1);
|
|
|
|
CStr font;
|
|
if (GUI<CStr>::GetSetting(this, "font", font) != PS_OK || font.Length()==0)
|
|
font = "default";
|
|
|
|
float buffer_zone = 0.f;
|
|
GUI<float>::GetSetting(this, "buffer_zone", buffer_zone);
|
|
|
|
CGUIString caption;
|
|
GUI<CGUIString>::GetSetting(this, "caption", caption);
|
|
|
|
int max_width = 0;
|
|
GUI<int>::GetSetting(this, "maxwidth", max_width);
|
|
|
|
*m_GeneratedTexts[0] = GetGUI()->GenerateText(caption, font, (float)max_width, buffer_zone, this);
|
|
|
|
|
|
// Position the tooltip relative to the mouse:
|
|
|
|
CPos mousepos, offset;
|
|
EVAlign anchor;
|
|
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("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;
|
|
else 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);
|
|
UpdateCachedSize();
|
|
}
|
|
|
|
void CTooltip::HandleMessage(const SGUIMessage &Message)
|
|
{
|
|
switch (Message.type)
|
|
{
|
|
case GUIM_SETTINGS_UPDATED:
|
|
// Don't update the text when the size changes, because the size is
|
|
// changed whenever the text is updated ( => infinite recursion)
|
|
if (/*Message.value == "size" ||*/ Message.value == "caption" ||
|
|
Message.value == "font" || Message.value == "buffer_zone")
|
|
{
|
|
SetupText();
|
|
}
|
|
break;
|
|
|
|
case GUIM_LOAD:
|
|
SetupText();
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
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);
|
|
|
|
GetGUI()->DrawSprite(*sprite, 0, z, m_CachedActualSize);
|
|
|
|
CColor color;
|
|
GUI<CColor>::GetSetting(this, "textcolor", color);
|
|
|
|
// Draw text
|
|
IGUITextOwner::Draw(0, color, m_CachedActualSize.TopLeft(), z+0.1f);
|
|
}
|
|
}
|