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/*
* bgbg.c
*
* This file is a part of NSIS.
*
* Copyright (C) 1999-2018 Nullsoft and Contributors
*
* Licensed under the zlib/libpng license (the "License");
* you may not use this file except in compliance with the License.
*
* Licence details can be found in the file COPYING.
*
* This software is provided 'as-is', without any express or implied
* warranty.
*
* Reviewed for Unicode support by Jim Park -- 08/22/2007
*/
#include "../Platform.h"
#include "resource.h"
#include "config.h"
#include "fileform.h"
#include "state.h"
#include "ui.h"
#include "util.h"
#ifdef NSIS_SUPPORT_BGBG
#define c1 header->bg_color1
#define c2 header->bg_color2
LRESULT CALLBACK BG_WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_WINDOWPOSCHANGING:
{
LPWINDOWPOS wp = (LPWINDOWPOS) lParam;
wp->flags |= SWP_NOACTIVATE;
wp->hwndInsertAfter = g_hwnd;
break;
}
case WM_PAINT:
{
header *header = g_header;
PAINTSTRUCT ps;
HDC hdc=BeginPaint(hwnd,&ps);
RECT r;
LOGBRUSH lh;
int ry;
lh.lbStyle = BS_SOLID;
GetClientRect(hwnd,&r);
// this portion by Drew Davidson, drewdavidson@mindspring.com
ry=r.bottom;
r.bottom=0;
// JF: made slower, reduced to 4 pixels high, because I like how it looks better/
while (r.top < ry)
{
int rv,gv,bv;
HBRUSH brush;
rv = (GetRValue(c2) * r.top + GetRValue(c1) * (ry-r.top)) / ry;
gv = (GetGValue(c2) * r.top + GetGValue(c1) * (ry-r.top)) / ry;
bv = (GetBValue(c2) * r.top + GetBValue(c1) * (ry-r.top)) / ry;
lh.lbColor = RGB(rv,gv,bv);
brush = CreateBrushIndirect(&lh);
// note that we don't need to do "SelectObject(hdc, brush)"
// because FillRect lets us specify the brush as a parameter.
r.bottom+=4;
FillRect(hdc, &r, brush);
DeleteObject(brush);
r.top+=4;
}
if (header->bg_textcolor != -1)
{
HFONT newFont = CreateFontIndirect((LOGFONT*) header->blocks[NB_BGFONT].offset);
if (newFont)
{
HFONT oldFont;
r.left=16;
r.top=8;
SetBkMode(hdc,TRANSPARENT);
SetTextColor(hdc,header->bg_textcolor);
oldFont = SelectObject(hdc,newFont);
DrawText(hdc,g_caption,-1,&r,DT_TOP|DT_LEFT|DT_SINGLELINE|DT_NOPREFIX);
SelectObject(hdc,oldFont);
DeleteObject(newFont);
}
}
EndPaint(hwnd,&ps);
}
return 0;
}
return DefWindowProc(hwnd,uMsg,wParam,lParam);
}
#endif //NSIS_SUPPORT_BGBG
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