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//----------------------------------------------------------------------------
// ObjectWindows
// (C) Copyright 1992, 1994 by Borland International, All Rights Reserved
//
// Implementation of TTinyCaption
//----------------------------------------------------------------------------
#pragma hdrignore SECTION
#include <owl/owlpch.h>
#include <owl/tinycapt.h>
#include <owl/gdiobjec.h>
#if !defined(SECTION) || SECTION == 1
//
// We only want to search this mixin for events, so don't include any base
// classes in Find()
//
DEFINE_RESPONSE_TABLE(TTinyCaption)
EV_WM_NCHITTEST,
EV_WM_NCPAINT,
EV_WM_NCCALCSIZE,
EV_WM_NCLBUTTONDOWN,
EV_WM_MOUSEMOVE,
EV_WM_LBUTTONUP,
EV_WM_NCACTIVATE,
EV_WM_SYSCOMMAND,
END_RESPONSE_TABLE;
//
// Rely on TWindow's default ctor since we will always be mixed-in and another
// window will perform Init()
//
TTinyCaption::TTinyCaption()
{
TCEnabled = false;
CaptionFont = 0;
}
TTinyCaption::~TTinyCaption()
{
delete CaptionFont;
}
void
TTinyCaption::EnableTinyCaption(int captionHeight, bool closeBox)
{
Border.cx = GetSystemMetrics(SM_CXBORDER);
Border.cy = GetSystemMetrics(SM_CYBORDER);
//
// Get width of window borders, these will vary with type of window
//
if (Attr.Style & WS_THICKFRAME) {
Frame.cx = GetSystemMetrics(SM_CXFRAME);
Frame.cy = GetSystemMetrics(SM_CYFRAME);
}
else if (Attr.Style & WS_DLGFRAME) {
Frame.cx = GetSystemMetrics(SM_CXDLGFRAME);
Frame.cy = GetSystemMetrics(SM_CYDLGFRAME);
}
else {
Attr.Style |= WS_BORDER; // must have at least a border
Frame = Border;
}
//
// Calculate the actual caption height including lower divider, but not top
// border
//
CaptionHeight = (GetSystemMetrics(SM_CYCAPTION) * captionHeight) / 100
- Border.cy;
CloseBox = closeBox;
delete CaptionFont;
CaptionFont = new TFont(
"Arial", // facename. "Small Fonts" is another option
-(CaptionHeight-2*Border.cy), // height in pixels,
0, 0, 0, FW_NORMAL, // width,esc,orientation,weight
VARIABLE_PITCH | FF_SWISS, // Pitch and Family
false, false, false, // Italic, Underline, Strikeout
ANSI_CHARSET, // Charset
OUT_CHARACTER_PRECIS, // Output precision
CLIP_DEFAULT_PRECIS, // Clip precision
PROOF_QUALITY // Quality
);
TCEnabled = true;
}
//
// Return where in the non client area we are. We only handle caption
// bar area
//
uint
TTinyCaption::EvNCHitTest(TPoint& screenPt)
{
uint er;
if (DoNCHitTest(screenPt, er) == esComplete)
return er;
return TWindow::EvNCHitTest(screenPt);
}
TEventStatus
TTinyCaption::DoNCHitTest(TPoint& screenPt, uint& evRes)
{
if (!TCEnabled)
return esPartial;
//
// Check style bits to see what to paint
//
long style = GetWindowLong(GWL_STYLE);
bool hasCaption, hasSysMenu, hasMaximize, hasMinimize;
hasCaption = hasSysMenu = hasMaximize = hasMinimize = false;
if (style & WS_CAPTION) {
hasCaption = true;
if (style & WS_SYSMENU)
hasSysMenu = true;
if (style & WS_MAXIMIZEBOX)
hasMaximize = true;
if (style & WS_MINIMIZEBOX)
hasMinimize = true;
}
//
// Convert to window coordinates
//
TPoint winPt = screenPt - GetWindowRect().TopLeft();
if ((hasSysMenu || CloseBox) && GetSysBoxRect().Contains(winPt)) {
evRes = HTSYSMENU;
return esComplete;
}
else if (hasMinimize && GetMinBoxRect().Contains(winPt)) {
evRes = HTMINBUTTON;
return esComplete;
}
else if (hasMaximize && GetMaxBoxRect().Contains(winPt)) {
evRes = HTMAXBUTTON;
return esComplete;
}
//
// CaptionRect includes buttons so make sure it's last checked
// Should modify this one to allow clicking in left, top, right thin
// borders of caption
//
else if (hasCaption && GetCaptionRect().Contains(winPt)) {
evRes = HTCAPTION;
return esComplete;
}
else {
evRes = 0;
return esPartial;
}
}
//
// We only need to paint the caption. Someone else will paint the borders
//
void
TTinyCaption::EvNCPaint()
{
TWindow::EvNCPaint(); // Default border painting
DoNCPaint(); // Then our special caption painting
}
TEventStatus
TTinyCaption::DoNCPaint()
{
if (!TCEnabled || IsIconic())
return esPartial; // We don't do anything special for an Icon
//
// If we have focus or our children have focus, then we're active
// Note: We can't use GetFocus here because when we're being restored
// from an icon, we're active, but don't yet have focus!
//
HWND focus = GetFocus();
PaintCaption(GetActiveWindow() == HWindow || focus == HWindow || IsChild(focus));
return esPartial; // Caller must call function to paint borders
}
//
// Returns the size of our client area
//
uint
TTinyCaption::EvNCCalcSize(bool calcValidRects, NCCALCSIZE_PARAMS far& calcSize)
{
uint er;
if (DoNCCalcSize(calcValidRects, calcSize, er) == esComplete)
return er;
return TWindow::EvNCCalcSize(calcValidRects, calcSize);
}
//
// Return the size of our client area, leaving room for caption bar
//
TEventStatus
TTinyCaption::DoNCCalcSize(bool /*calcValidRects*/,
NCCALCSIZE_PARAMS far& calcSize, uint& evRes)
{
if (!TCEnabled || IsIconic())
return esPartial;
TRect captRect = GetCaptionRect();
calcSize.rgrc[0].left += Frame.cx;
calcSize.rgrc[0].top += Frame.cy + captRect.Height();
calcSize.rgrc[0].right -= Frame.cx;
calcSize.rgrc[0].bottom -= Frame.cy;
evRes = 0;
return esComplete;
}
void
TTinyCaption::EvNCLButtonDown(uint hitTest, TPoint& screenPt)
{
//
// Display system menu, invert min/max icons (not), etc
//
if (DoNCLButtonDown(hitTest,screenPt) == esPartial)
TWindow::EvNCLButtonDown(hitTest, screenPt);
}
TEventStatus
TTinyCaption::DoNCLButtonDown(uint hitTest, TPoint& screenPt)
{
if (!TCEnabled)
return esPartial;
switch (hitTest) {
case HTSYSMENU:
DownHit = HTSYSMENU;
if (CloseBox) {
IsPressed = true;
SetCapture();
PaintCloseBox(TWindowDC(*this), GetSysBoxRect(), IsPressed);
}
else {
TRect sysBoxRect = GetSysBoxRect().InflatedBy(-1,-1);
sysBoxRect.right += 1;
TWindowDC(*this).PatBlt(sysBoxRect, PATINVERT);
//
// Display sys menu on button down
// Need to lock sys menu until user clicks outside
//
//
// Set flag to indicate we're expecting a sys command, & then send
// message to popup sys menu
//
WaitingForSysCmd = true;
SendMessage(WM_SYSCOMMAND, SC_MOUSEMENU|HTSYSMENU,
MAKELPARAM(screenPt.x,screenPt.y));
//
// If we didn't execute a command, user released btn outside of menu
// If it was released in sys menu box, then redisplay menu as if it
// were brought up with a keystroke
//
if (WaitingForSysCmd) {
uint hitTest;
TPoint pt;
GetCursorPos(pt);
DoNCHitTest(pt, hitTest);
if (hitTest == HTSYSMENU) {
SendMessage(WM_SYSCOMMAND, SC_KEYMENU|HTSYSMENU);
}
}
if (HWindow)
TWindowDC(*this).PatBlt(sysBoxRect, PATINVERT);
}
return esComplete;
case HTMINBUTTON:
DownHit = HTMINBUTTON;
IsPressed = true;
SetCapture();
PaintMinBox(TWindowDC(*this), GetMinBoxRect(), IsPressed);
return esComplete;
case HTMAXBUTTON:
DownHit = HTMAXBUTTON;
IsPressed = true;
SetCapture();
PaintMaxBox(TWindowDC(*this), GetMaxBoxRect(), IsPressed);
return esComplete;
}
DownHit = HTNOWHERE;
return esPartial;
}
void
TTinyCaption::EvMouseMove(uint modKeys, TPoint& pt)
{
if (DoMouseMove(modKeys, pt) == esPartial)
TWindow::EvMouseMove(modKeys, pt);
}
TEventStatus
TTinyCaption::DoMouseMove(uint /*modKeys*/, TPoint& pt)
{
if (TCEnabled && DownHit != HTNOWHERE) {
uint hitTest;
TPoint screenPt = pt;
ClientToScreen(screenPt); // Cvt to screen coord
DoNCHitTest(screenPt, hitTest);
bool isNowPressed = hitTest == DownHit;
if (isNowPressed != IsPressed) {
IsPressed = isNowPressed;
switch (DownHit) {
case HTSYSMENU:
if (CloseBox)
PaintCloseBox(TWindowDC(*this), GetSysBoxRect(), IsPressed);
return esComplete;
case HTMINBUTTON:
PaintMinBox(TWindowDC(*this), GetMinBoxRect(), IsPressed);
return esComplete;
case HTMAXBUTTON:
PaintMaxBox(TWindowDC(*this), GetMaxBoxRect(), IsPressed);
return esComplete;
}
}
}
return esPartial;
}
void
TTinyCaption::EvLButtonUp(uint modKeys, TPoint& pt)
{
//
// If we're still in area where buton went down, then do it
//
if (DoLButtonUp(modKeys, pt) == esPartial)
TWindow::EvLButtonUp(modKeys, pt);
}
TEventStatus
TTinyCaption::DoLButtonUp(uint modKeys, TPoint& pt)
{
if (TCEnabled && DownHit != HTNOWHERE) {
ReleaseCapture();
DoMouseMove(modKeys, pt);
uint hitTest;
TPoint screenPt = pt;
ClientToScreen(screenPt); // Cvt to screen coord
DoNCHitTest(screenPt, hitTest);
if (hitTest == DownHit) {
DownHit = HTNOWHERE;
switch (hitTest) {
case HTSYSMENU:
if (CloseBox)
PostMessage(WM_CLOSE);
return esComplete;
//
// We have to handle these buttons also to prevent defproc from painting
// the standard big min/max buttons when left mouse button is pressed
//
case HTMINBUTTON:
HandleMessage(WM_SYSCOMMAND, SC_MINIMIZE);
return esComplete;
case HTMAXBUTTON:
HandleMessage(WM_SYSCOMMAND, IsZoomed() ? SC_RESTORE : SC_MAXIMIZE);
return esComplete;
}
}
DownHit = HTNOWHERE;
}
return esPartial;
}
bool
TTinyCaption::EvNCActivate(bool active)
{
bool er;
if (DoNCActivate(active, er) == esComplete)
return er;
return TWindow::EvNCActivate(active);
}
TEventStatus
TTinyCaption::DoNCActivate(bool active, bool& evRes)
{
if (!TCEnabled || IsIconic())
return esPartial; // Let default do it's thing
PaintCaption(active);
evRes = ToBool(!active);
return esComplete;
}
LRESULT
TTinyCaption::EvCommand(uint id, HWND hWndCtl, uint notifyCode)
{
LRESULT er;
if (DoCommand(id, hWndCtl, notifyCode, er) == esComplete)
return er;
return TWindow::EvCommand(id, hWndCtl, notifyCode);
}
TEventStatus
TTinyCaption::DoCommand(uint id, HWND /*hWndCtl*/, uint notifyCode, LRESULT& evRes)
{
//
// We're displaying system menu using TrackPopup...
// This will send us WM_COMMAND messages instead of WM_SYSCOMMAND msgs
// If we get a system menu command then transform it into a WM_SYSCOMMAND
//
if (!TCEnabled)
return esPartial;
if (id >= 0xF000) {
WaitingForSysCmd = false; // Let LButtonDown handler know that a command was sent
evRes = HandleMessage(WM_SYSCOMMAND, id, notifyCode);
return esComplete;
}
else {
evRes = 0;
return esPartial;
}
}
void
TTinyCaption::EvSysCommand(uint cmdType, TPoint& p)
{
if (DoSysCommand(cmdType,p) == esPartial)
TWindow::EvSysCommand(cmdType, p);
}
//
//
// Handle WM_SYSCOMMAND to make sure that SC_KEYMENU and SC_MOUSEMENU bring up
// our sys menu at the right coord w/ respect to the tiny sys box.
//
// If iconic, then let default windows processing deal with the menu
//
TEventStatus
TTinyCaption::DoSysCommand(uint cmdType, TPoint&)
{
if (!TCEnabled)
return esPartial;
cmdType &= 0xFFF0;
if ((cmdType == SC_KEYMENU || cmdType == SC_MOUSEMENU) && !IsIconic()) {
DoSysMenu();
return esComplete;
}
return esPartial;
}
void
TTinyCaption::PaintButton(TDC& dc, TRect& r, bool pressed)
{
// dc.OWLFastWindowFrame(TBrush(GetSysColor(COLOR_WINDOWFRAME)), r, 1, 1);
dc.FrameRect(r, TBrush(GetSysColor(COLOR_WINDOWFRAME)));
r.Inflate(-1,-1);
dc.TextRect(r, TColor::LtGray);
if (r.Width() > 4 && r.Height() > 4) {
if (pressed) {
dc.TextRect(r.left, r.top, r.right, r.top+1, TColor::Gray);
dc.TextRect(r.left, r.top+1, r.left+1, r.bottom, TColor::Gray);
}
else {
dc.TextRect(r.left, r.top, r.right-1, r.top+1, TColor::White);
dc.TextRect(r.left, r.top+1, r.left+1, r.bottom-1, TColor::White);
dc.TextRect(r.right-1, r.top+1, r.right, r.bottom, TColor::Gray);
dc.TextRect(r.left+1, r.bottom-1, r.right-1, r.bottom, TColor::Gray);
}
}
}
void
TTinyCaption::PaintCloseBox(TDC& dc, TRect& boxRect, bool pressed)
{
//
// Fill the box with light gray & draw bevel if possible
//
PaintButton(dc, boxRect, pressed);
if (pressed)
boxRect.Offset(1,1);
//
// Do something different to differentiate from standard system menu--
// draw a recessed black box glyph about half the button size, centered
//
int glyphWidth = boxRect.Width() > 7 ?
boxRect.Width()-boxRect.Width()/2-1 : boxRect.Width()-3;
int glyphHeight = boxRect.Height() > 7 ?
boxRect.Height()-boxRect.Height()/2-1 : boxRect.Height()-3;
if (glyphWidth > 1 && glyphHeight > 1) {
TRect glyphRect(0, 0, glyphWidth, glyphHeight);
glyphRect.Offset(boxRect.left + (boxRect.Width()-glyphWidth-1)/2,
boxRect.top + (boxRect.Height()-glyphHeight-1)/2);
dc.TextRect(glyphRect, TColor::Gray);
glyphRect.Offset(1,1);
dc.TextRect(glyphRect, TColor::White);
glyphRect.BottomRight().Offset(-1,-1);
dc.TextRect(glyphRect, TColor::Black);
}
}
void
TTinyCaption::PaintSysBox(TDC& dc, TRect& boxRect, bool /*pressed*/)
{
//
// Dont paint over the left & top borders
//
boxRect.left++;
boxRect.top++;
//
// Fill the box with light gray
//
dc.TextRect(boxRect, TColor::LtGray);
//
// Draw the ventilator (sysmenu) box, with shadow
//
TPoint begPt = boxRect.TopLeft().OffsetBy(2, (boxRect.Height()-3)/2);
TRect ventRect(begPt, TSize(boxRect.Width()-5, 3));
// Draw shadow down and right 1
dc.TextRect(ventRect.left+1, ventRect.top+1,
ventRect.right+1, ventRect.bottom+1, TColor::Gray);
// Draw ventilator rectangle
dc.FrameRect(ventRect, TBrush(TColor::Black));
// Draw white interior of ventilator
dc.TextRect(ventRect.left+1, ventRect.top+1,
ventRect.right-1, ventRect.top+2, TColor::White);
dc.TextRect(boxRect.right, boxRect.top,
boxRect.right+1, boxRect.bottom, TColor::Black);
}
void
TTinyCaption::PaintMinBox(TDC& dc, TRect& boxRect, bool pressed)
{
//
// Fill the box with light gray & draw bevel if possible
//
PaintButton(dc, boxRect, pressed);
if (pressed)
boxRect.Offset(1,1);
int bh = boxRect.Height();
int bw = boxRect.Width();
TPoint begPt = boxRect.TopLeft().OffsetBy((bw+1)/4, (bh+2)/3);
TPoint endPt = begPt.OffsetBy((bw+1)/2,0);
while (begPt.x < endPt.x) {
dc.MoveTo(begPt);
dc.LineTo(endPt);
begPt.Offset(1,1);
endPt.Offset(-1,1);
}
}
void
TTinyCaption::PaintMaxBox(TDC& dc, TRect& boxRect, bool pressed)
{
//
// Fill the box with light gray & draw bevel if possible
//
PaintButton(dc, boxRect, pressed);
if (pressed)
boxRect.Offset(1,1);
//
// Down triangle
//
int bh = boxRect.Height();
int bw = boxRect.Width();
if (IsZoomed()) {
TPoint begPt = boxRect.BottomLeft().OffsetBy((bw+1)/4, -bh*3/8);
TPoint endPt = begPt.OffsetBy((bw+1)/2, 0);
while (begPt.x < endPt.x) {
dc.MoveTo(begPt);
dc.LineTo(endPt);
begPt.Offset(1,1);
endPt.Offset(-1,1);
}
}
//
// Up triangle
//
{
TPoint begPt = boxRect.TopLeft().OffsetBy((bw+1)/4, IsZoomed() ? bh*3/8 : bh*2/3);
TPoint endPt = begPt.OffsetBy((bw+1)/2, 0);
while (begPt.x < endPt.x) {
dc.MoveTo(begPt);
dc.LineTo(endPt);
begPt.Offset(1, -1);
endPt.Offset(-1, -1);
}
}
}
void
TTinyCaption::PaintCaption(bool active)
{
int xOrg;
long style = GetWindowLong(GWL_STYLE);
if (!(style & WS_CAPTION))
return; // Leave now if there is no caption, it's all we care about
//
// Paint caption background and caption text if any.
//
TWindowDC dc(*this);
TRect captRect = GetCaptionRect();
HBRUSH captionBrush = CreateSolidBrush(GetSysColor(active ?
COLOR_ACTIVECAPTION :
COLOR_INACTIVECAPTION));
dc.SetTextColor(GetSysColor(active ? COLOR_CAPTIONTEXT :
COLOR_INACTIVECAPTIONTEXT));
dc.FillRect(captRect, captionBrush);
DeleteObject(captionBrush);
dc.SelectObject(*CaptionFont);
dc.SetBkMode(TRANSPARENT);
TSize textSize = dc.GetTextExtent(Title, strlen(Title));
//
// Calc x coord for text, so that text is centered between caption buttons
//
xOrg = captRect.right - captRect.left;
if (style & WS_MINIMIZEBOX)
xOrg -= GetMinBoxRect().Width();
if (style & WS_MAXIMIZEBOX)
xOrg -= GetMaxBoxRect().Width();
if ((style & WS_SYSMENU) || CloseBox)
xOrg -= GetSysBoxRect().Width();
xOrg -= textSize.cx;
if (xOrg<0)
xOrg = 0;
else
xOrg = xOrg/2;
xOrg += captRect.left;
if ((style & WS_SYSMENU) || CloseBox)
xOrg += GetSysBoxRect().Width();
dc.ExtTextOut(xOrg, captRect.top-Border.cy,
ETO_CLIPPED,
&captRect,
Title,
strlen(Title)
);
dc.RestoreFont();
//
// Paint widgets: sysmenu or close button, minimize button, maximize button
// They currently all use a black pen
//
dc.SelectStockObject(BLACK_PEN);
//
// Paint system menu or close button
//
if (CloseBox)
PaintCloseBox(dc, GetSysBoxRect(), false);
else if (style & WS_SYSMENU)
PaintSysBox(dc, GetSysBoxRect(), false);
//
// Paint minimize button
//
if (style & WS_MINIMIZEBOX)
PaintMinBox(dc, GetMinBoxRect(), false);
//
// Paint maximize button
//
if (style & WS_MAXIMIZEBOX)
PaintMaxBox(dc, GetMaxBoxRect(), false);
//
// Draw window-frame color line under caption
//
dc.FrameRect(captRect.left, captRect.bottom-1, captRect.right, captRect.bottom,
TBrush(GetSysColor(COLOR_WINDOWFRAME)));
}
//
// NOTE: GetCaptionRect and GetSysBoxRect must be kept in sync!
//
TRect
TTinyCaption::GetCaptionRect()
{
//
// Get caption rect converted to window relative coordinates
//
TRect captRect = GetWindowRect();
captRect -= captRect.TopLeft();
captRect.left += Frame.cx;
captRect.top += Frame.cy;
captRect.right -= Frame.cx;
captRect.bottom = captRect.top + CaptionHeight;
return captRect;
}
//
// Return a rectangle for sysmenu, minimize, or maximize rectangle
//
TRect
TTinyCaption::GetSysBoxRect()
{
TRect boxRect = GetCaptionRect();
boxRect.right = boxRect.left + CaptionHeight;
boxRect.left -= 1;
boxRect.top -= 1;
return boxRect;
}
TRect
TTinyCaption::GetMinBoxRect()
{
//
// Far right on caption if no max box, else next to max box
//
TRect boxRect = GetMaxBoxRect();
if (GetWindowLong(GWL_STYLE) & WS_MAXIMIZEBOX)
boxRect.Offset(-CaptionHeight, 0);
return boxRect;
}
TRect
TTinyCaption::GetMaxBoxRect()
{
TRect boxRect = GetCaptionRect();
boxRect.left = boxRect.right - CaptionHeight;
boxRect.top -= 1;
boxRect.right += 1;
return boxRect;
}
//
// Get system menu, setup menu items, popup & track it
//
void
TTinyCaption::DoSysMenu()
{
HMENU hSysMenu = GetSystemMenu();
if (hSysMenu) {
uint32 style = GetWindowLong(GWL_STYLE);
EnableMenuItem(hSysMenu, SC_RESTORE, (IsIconic() || IsZoomed()) ? MF_ENABLED : MF_GRAYED);
EnableMenuItem(hSysMenu, SC_MOVE, (style & WS_CAPTION) ? MF_ENABLED : MF_GRAYED);
EnableMenuItem(hSysMenu, SC_SIZE, (style & WS_THICKFRAME) ? MF_ENABLED : MF_GRAYED);
EnableMenuItem(hSysMenu, SC_MINIMIZE, ((style&WS_MINIMIZEBOX) && !IsIconic()) ? MF_ENABLED : MF_GRAYED);
EnableMenuItem(hSysMenu, SC_MAXIMIZE, ((style&WS_MAXIMIZEBOX) && !IsZoomed()) ? MF_ENABLED : MF_GRAYED);
TRect r = GetSysBoxRect();
ClientToScreen(r.TopLeft()); // Cvt pt to screen coord
ClientToScreen(r.BottomRight());
TrackPopupMenu(hSysMenu, TPM_LEFTALIGN | TPM_LEFTBUTTON,
r.left-Frame.cx, r.top-Frame.cy, 0, HWindow, &r);
}
}
#endif
#if !defined(SECTION) || SECTION == 2
IMPLEMENT_STREAMABLE(TTinyCaption);
void*
TTinyCaption::Streamer::Read(ipstream& is, uint32 /*version*/) const
{
TTinyCaption* o = GetObject();
o->CaptionFont = 0;
is >> o->TCEnabled;
if (o->TCEnabled) {
int captionHeight;
is >> captionHeight >> o->CloseBox;;
o->EnableTinyCaption(captionHeight, o->CloseBox);
}
return o;
}
void
TTinyCaption::Streamer::Write(opstream& os) const
{
TTinyCaption* o = GetObject();
os << o->TCEnabled;
if (o->TCEnabled) {
int captionHeight = (100*o->CaptionHeight) /
(o->Border.cy+GetSystemMetrics(SM_CYCAPTION));
os << captionHeight << o->CloseBox;
}
}
#endif