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// BiomeViewWnd.cpp
// Implements the cBiomeViewWnd class representing the window that displays biomes
#include "Globals.h"
#include "BiomeViewWnd.h"
#include "BiomeCache.h"
#include "GeneratorBiomeSource.h"
#include "iniFile/iniFile.h"
const int TIMER_RERENDER = 1200;
cBiomeViewWnd::cBiomeViewWnd(void) :
m_Wnd(NULL),
m_Thunk(&cBiomeViewWnd::WndProc, this),
m_IsLButtonDown(false)
{
}
bool cBiomeViewWnd::Create(HWND a_ParentWnd, LPCTSTR a_Title)
{
ASSERT(m_Wnd == NULL);
// Create a regular STATIC window, then override its window procedure with our own. No need for obnoxious RegisterWindowClass() stuff.
m_Wnd = CreateWindow("STATIC", a_Title, WS_OVERLAPPEDWINDOW | WS_VISIBLE, 0, 0, 400, 300, a_ParentWnd, NULL, GetModuleHandle(NULL), NULL);
if (m_Wnd == NULL)
{
LOGERROR("Cannot create main window: %d", GetLastError());
return false;
}
SetWindowLongPtr(m_Wnd, GWLP_WNDPROC, m_Thunk);
cIniFile IniFile;
cBiomeGen * BioGen = new cBioGenMultiStepMap(2);
BioGen->InitializeBiomeGen(IniFile);
m_Renderer.SetSource(new cGeneratorBiomeSource(BioGen));
return true;
}
LRESULT cBiomeViewWnd::WndProc(HWND a_Wnd, UINT a_Msg, WPARAM wParam, LPARAM lParam)
{
switch (a_Msg)
{
case WM_CLOSE: return OnClose();
case WM_COMMAND: return OnCommand(wParam, lParam);
case WM_LBUTTONDOWN: return OnLButtonDown(wParam, lParam);
case WM_LBUTTONUP: return OnLButtonUp (wParam, lParam);
case WM_MOUSEMOVE: return OnMouseMove (wParam, lParam);
case WM_PAINT: return OnPaint();
case WM_TIMER: return OnTimer(wParam);
}
return ::DefWindowProc(a_Wnd, a_Msg, wParam, lParam);
}
LRESULT cBiomeViewWnd::OnClose(void)
{
PostQuitMessage(0);
return 0;
}
LRESULT cBiomeViewWnd::OnCommand(WPARAM wParam, LPARAM lParam)
{
// TODO: Handle menu commands, when we get menu
return 0;
}
LRESULT cBiomeViewWnd::OnLButtonDown(WPARAM wParam, LPARAM lParam)
{
m_IsLButtonDown = true;
GetCursorPos(&m_MouseDown);
return 0;
}
LRESULT cBiomeViewWnd::OnMouseMove(WPARAM wParam, LPARAM lParam)
{
if (!m_IsLButtonDown)
{
return 0;
}
POINT pnt;
GetCursorPos(&pnt);
m_Renderer.MoveViewBy(pnt.x - m_MouseDown.x, pnt.y - m_MouseDown.y);
if (m_Renderer.Render(m_Pixmap))
{
SetTimer(m_Wnd, TIMER_RERENDER, 200, NULL);
}
m_MouseDown = pnt;
InvalidateRect(m_Wnd, NULL, FALSE);
return 0;
}
LRESULT cBiomeViewWnd::OnLButtonUp(WPARAM wParam, LPARAM lParam)
{
OnMouseMove(wParam, lParam); // Last movement - if the mouse move hasn't been reported due to speed
m_IsLButtonDown = false;
InvalidateRect(m_Wnd, NULL, FALSE);
return 0;
}
LRESULT cBiomeViewWnd::OnPaint(void)
{
PAINTSTRUCT ps;
HDC DC = BeginPaint(m_Wnd, &ps);
RECT rc;
GetClientRect(m_Wnd, &rc);
int Wid = rc.right - rc.left;
int Hei = rc.bottom - rc.top;
if ((m_Pixmap.GetWidth() != Wid) || (m_Pixmap.GetHeight() != Hei))
{
m_Pixmap.SetSize(Wid, Hei);
if (m_Renderer.Render(m_Pixmap))
{
SetTimer(m_Wnd, TIMER_RERENDER, 200, NULL);
}
}
m_Pixmap.DrawToDC(DC, 0, 0);
EndPaint(m_Wnd, &ps);
return 0;
}
LRESULT cBiomeViewWnd::OnTimer(WPARAM wParam)
{
switch (wParam)
{
case TIMER_RERENDER:
{
if (!m_Renderer.Render(m_Pixmap))
{
KillTimer(m_Wnd, TIMER_RERENDER);
}
InvalidateRect(m_Wnd, NULL, FALSE);
break;
}
}
return 0;
}
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