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more scrollolainen

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This commit is contained in:
Erik Faye-Lund 2007-11-22 21:36:01 +00:00
parent 2276865d6a
commit e6a171a395
1 changed files with 58 additions and 31 deletions
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89
synctracker2.cpp
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@ -26,6 +26,13 @@ void setupScrollBars(HWND hwnd)
si.nMin = 0;
si.nMax = 0x80;
SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
si.fMask = SIF_POS | SIF_PAGE | SIF_RANGE | SIF_DISABLENOSCROLL;
si.nPos = scrollPosX;
si.nPage = windowWidth;
si.nMin = 0;
si.nMax = windowWidth * 2; // 0x80;
SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
}
void setScrollPos(HWND hwnd, int newScrollPosX, int newScrollPosY)
@ -49,7 +56,7 @@ void setScrollPos(HWND hwnd, int newScrollPosX, int newScrollPosY)
RECT clip;
GetClientRect(hwnd, &clip);
clip.top = topMarginHeight; /* don't scroll the top line */
if (scrollX == 0) clip.top = topMarginHeight; /* don't scroll the top line */
ScrollWindowEx(
hwnd,
@ -69,8 +76,8 @@ void paintTracks(HDC hdc, RECT rcTracks)
{
char temp[256];
int firstLine = scrollPosY + (rcTracks.top) / fontHeight;
int lastLine = scrollPosY + (rcTracks.bottom + fontHeight - 1) / fontHeight;
int firstLine = max((rcTracks.top - topMarginHeight) / fontHeight, 0);
int lastLine = scrollPosY + ((rcTracks.bottom - topMarginHeight) + (fontHeight - 1)) / fontHeight;
int trackLeft = -scrollPosX;
for (int x = 0; x < 10; ++x)
@ -93,19 +100,24 @@ void paintTracks(HDC hdc, RECT rcTracks)
trackLeft, 0,
temp, int(strlen(temp))
);
ExcludeClipRect(hdc, topMargin.left, topMargin.top, topMargin.right, topMargin.bottom);
// PaintRect(hdc, &topMargin, GetColour(TXC_BACKGROUND));
// ExcludeClipRect(hdc, rcTracks.left, rcTracks.top, rcTracks.right, topMarginHeight);
SetBkMode(hdc, OPAQUE);
// SetBkColor(hdc, RGB(255, 0, 0));
for (int y = firstLine; y < lastLine; ++y)
{
int val = y | (x << 8);
RECT patternDataRect;
patternDataRect.left = trackLeft;
patternDataRect.right = trackLeft + trackWidth;
patternDataRect.top = topMarginHeight + (y - scrollPosY) * fontHeight;
patternDataRect.bottom = patternDataRect.top + fontHeight;
FillRect( hdc, &patternDataRect, (HBRUSH)GetStockObject(WHITE_BRUSH));
/* format the text */
_snprintf_s(temp, 256, "%04X ", val);
if (y % 16 != 0) _snprintf_s(temp, 256, "- - -", val);
else _snprintf_s(temp, 256, "%2.2f", (float(y) / 16));
TextOut(hdc,
trackLeft,
topMarginHeight + (y - scrollPosY) * fontHeight,
@ -155,7 +167,7 @@ int getScrollPos(HWND hwnd, int bar)
return int(si.nTrackPos);
}
void onScroll(HWND hwnd, UINT sbCode, int newPos)
void onVScroll(HWND hwnd, UINT sbCode, int newPos)
{
switch (sbCode)
{
@ -186,6 +198,38 @@ void onScroll(HWND hwnd, UINT sbCode, int newPos)
}
}
void onHScroll(HWND hwnd, UINT sbCode, int newPos)
{
switch (sbCode)
{
case SB_LEFT:
setScrollPos(hwnd, 0, scrollPosY);
break;
// SB_RIGHT currently missing.
case SB_LINELEFT:
setScrollPos(hwnd, scrollPosX - 1, scrollPosY);
break;
case SB_LINERIGHT:
setScrollPos(hwnd, scrollPosX + 1, scrollPosY);
break;
case SB_PAGELEFT:
setScrollPos(hwnd, scrollPosX - 20, scrollPosY);
break;
case SB_PAGEDOWN:
setScrollPos(hwnd, scrollPosX + 20, scrollPosY);
break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
setScrollPos(hwnd, getScrollPos(hwnd, SB_HORZ), scrollPosY);
break;
}
}
void onSize(HWND hwnd, int width, int height)
{
const int oldWindowWidth = windowWidth;
@ -196,27 +240,6 @@ void onSize(HWND hwnd, int width, int height)
windowLines = height / fontHeight;
setupScrollBars(hwnd);
/*
if (oldWindowWidth < windowWidth)
{
RECT rightRect;
rightRect.left = oldWindowWidth;
rightRect.right = windowWidth;
InvalidateRect(hwnd, &rightRect, FALSE);
}
*/
/*
if (oldWindowHeight < windowHeight)
{
RECT bottomRect;
bottomRect.left = 0;
bottomRect.right = width;
bottomRect.top = oldWindowHeight;
bottomRect.bottom = windowHeight;
printf("extending downwards! %d %d\n", bottomRect.top, bottomRect.bottom);
InvalidateRect(hwnd, &bottomRect, FALSE);
}
*/
}
void onPaint(HWND hwnd)
@ -245,7 +268,11 @@ LRESULT CALLBACK windowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
break;
case WM_VSCROLL:
onScroll(hwnd, LOWORD(wParam), getScrollPos(hwnd, SB_VERT));
onVScroll(hwnd, LOWORD(wParam), getScrollPos(hwnd, SB_VERT));
break;
case WM_HSCROLL:
onHScroll(hwnd, LOWORD(wParam), getScrollPos(hwnd, SB_HORZ));
break;
case WM_PAINT: