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windows-nt/Source/XPSP1/NT/multimedia/dshow/mfvideo/tvplayer/msmfcnt/msmftext.cpp

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2020-09-26 03:20:57 -05:00
/*************************************************************************/
/* Copyright (C) 1999 Microsoft Corporation */
/* File: MSMFText.cpp */
/* Description: Implementation of CMSMFText control object */
/* Author: phillu */
/* Date: 10/06/99 */
/*************************************************************************/
#include "stdafx.h"
#include "MSMFCnt.h"
#include "MSMFText.h"
/////////////////////////////////////////////////////////////////////////////
// CMSMFText
/*************************************************************************/
/* Function: CMSMFText::CMSMFText() */
/* Description: Initialize the properties and states. */
/*************************************************************************/
CMSMFText::CMSMFText()
{
m_fDirty = true;
//properties
m_clrBackColor = ::GetSysColor(COLOR_BTNFACE);
m_uiState = TextState::Static;
m_uiFontSize = 10;
m_fDisabled = false;
m_clrColorActive = 0x00ff0000; // blue
m_clrColorStatic = 0x00000000; // black
m_clrColorHover = 0x00ff0000; // blue
m_clrColorPush = 0x00ffffff; // white
m_clrColorDisable = 0x00808080; // grey
m_bstrTextValue = L"";
m_bstrFontFace = L"Arial";
m_bstrAlignment = L"Center";
m_bstrFontStyle = L"Normal";
m_uiEdgeStyle = 0; // no edge
#if 0 // used for getting the windowed case working DJ
m_bWindowOnly = TRUE;
#endif
m_fTransparent = false;
}
/*************************************************************************/
/* Function: CMSMFText::SetTextProperties */
/* Description: Set the properties for the CText object. */
/*************************************************************************/
HRESULT CMSMFText::SetTextProperties()
{
HRESULT hr = S_OK;
m_cText.SetFontFace(m_bstrFontFace);
m_cText.SetFontSize(m_uiFontSize);
m_cText.SetFontStyle(m_bstrFontStyle);
m_cText.SetTextAlignment(m_bstrAlignment);
m_cText.SetFixedSizeFont(true);
// set the font color based on the current state
OLE_COLOR clrColorCurrent = m_clrColorStatic;
switch(m_uiState)
{
case(TextState::Static):
clrColorCurrent = m_clrColorStatic;
break;
case(TextState::Hover):
clrColorCurrent = m_clrColorHover;
break;
case(TextState::Active):
clrColorCurrent = m_clrColorActive;
break;
case(TextState::Push):
clrColorCurrent = m_clrColorPush;
break;
case(TextState::Disabled):
clrColorCurrent = m_clrColorDisable;
break;
}
// translate OLE_COLOR to COLORREF
COLORREF crCurrentState;
hr = OleTranslateColor(clrColorCurrent, NULL, &crCurrentState);
if (FAILED(hr))
{
crCurrentState = GetSysColor(COLOR_WINDOWTEXT);
}
m_cText.SetTextColor(crCurrentState);
m_fDirty = false;
return hr;
}
/*************************************************************************/
/* Function: OnDraw */
/* Description: Draw text in the specified rectangle. */
/*************************************************************************/
HRESULT CMSMFText::OnDraw(ATL_DRAWINFO& di)
{
USES_CONVERSION;
HRESULT hr = S_OK;
RECT& rc = *(RECT*)di.prcBounds;
// draw background
if (!m_fTransparent)
{
COLORREF clr;
::OleTranslateColor (m_clrBackColor, NULL, &clr);
HBRUSH hbrBack = ::CreateSolidBrush(clr);
::FillRect(di.hdcDraw, &rc, hbrBack);
::DeleteObject(hbrBack);
}
if (m_fDirty)
{
SetTextProperties();
}
hr = m_cText.Write(di.hdcDraw, rc, m_bstrTextValue);
// draw edge
if (m_uiEdgeStyle != 0)
{
::DrawEdge(di.hdcDraw, &rc, m_uiEdgeStyle, BF_RECT);
}
// draw focus rectagle
hr = GetFocus();
if(S_OK == hr)
{
::DrawFocusRect(di.hdcDraw, (LPRECT)di.prcBounds);
}
return hr;
}/* end of function OnDraw */
/*************************************************************************/
/* Function: get_FontSize */
/* Description: return the FontSize property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_FontSize(long *pVal)
{
if (!pVal)
{
return E_POINTER;
}
*pVal = m_uiFontSize;
return S_OK;
}
/*************************************************************************/
/* Function: put_FontSize */
/* Description: set the FontSize property, in pt. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_FontSize(long lSize)
{
if ((UINT)lSize != m_uiFontSize)
{
m_uiFontSize = (UINT)lSize;
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_Text */
/* Description: return the Text that is displayed in the control. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_Text(BSTR *pText)
{
if (!pText)
{
return E_POINTER;
}
*pText = m_bstrTextValue.Copy();
return S_OK;
}
/*************************************************************************/
/* Function: put_Text */
/* Description: set the text to be displayed in the control. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_Text(BSTR wsText)
{
if (_wcsicmp(m_bstrTextValue, wsText) != 0)
{
m_bstrTextValue = wsText;
FireViewChange();
}
return S_OK;
}
/*************************************************************************/
/* Function: get_FontFace */
/* Description: return the FontFace property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_FontFace(BSTR *pFontFace)
{
if (!pFontFace)
{
return E_POINTER;
}
*pFontFace = m_bstrFontFace.Copy();
return S_OK;
}
/*************************************************************************/
/* Function: put_FontFace */
/* Description: set the FontFace property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_FontFace(BSTR wsFontFace)
{
if (_wcsicmp(m_bstrFontFace, wsFontFace) != 0)
{
m_bstrFontFace = wsFontFace;
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_FontStyle */
/* Description: return the FontSize property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_FontStyle(BSTR *pFontStyle)
{
if (!pFontStyle)
{
return E_POINTER;
}
*pFontStyle = m_bstrFontStyle.Copy();
return S_OK;
}
/*************************************************************************/
/* Function: put_FontStyle */
/* Description: set the FontStyle property. The style string should */
/* contain either "Normal", or concatenation of one or more strings of: */
/* "Bold", "Italic", "Underline", "Strikeout". Default is "Normal". */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_FontStyle(BSTR wsFontStyle)
{
if (_wcsicmp(m_bstrFontStyle, wsFontStyle) != 0)
{
m_bstrFontStyle = wsFontStyle;
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_TextAlignment */
/* Description: return the TextAlignment (horizontal) property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_TextAlignment(BSTR *pAlignment)
{
if (!pAlignment)
{
return E_POINTER;
}
*pAlignment = m_bstrAlignment.Copy();
return S_OK;
}
/*************************************************************************/
/* Function: put_TextAlignment */
/* Description: set the TextAlignment property. It controls the */
/* horizontal text alignment. Must be one of "Left", "Center", or */
/* "Right". Default is "Center". */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_TextAlignment(BSTR wsAlignment)
{
if (_wcsicmp(m_bstrAlignment, wsAlignment) != 0)
{
m_bstrAlignment = wsAlignment;
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_ColorPush */
/* Description: return the ColorPush property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_ColorPush(OLE_COLOR *pColor)
{
if (!pColor)
{
return E_POINTER;
}
*pColor = m_clrColorPush;
return S_OK;
}
/*************************************************************************/
/* Function: put_ColorPush */
/* Description: set the ColorPush property. This is the color of text */
/* in the Push state. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_ColorPush(OLE_COLOR clrColor)
{
m_clrColorPush = clrColor;
if (m_uiState == TextState::Push)
{
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_ColorHover */
/* Description: return the ColorHover property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_ColorHover(OLE_COLOR *pColor)
{
if (!pColor)
{
return E_POINTER;
}
*pColor = m_clrColorHover;
return S_OK;
}
/*************************************************************************/
/* Function: put_ColorHover */
/* Description: set the ColorHover property. This is the color of text */
/* in the Hover state. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_ColorHover(OLE_COLOR clrColor)
{
m_clrColorHover = clrColor;
if (m_uiState == TextState::Hover)
{
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_ColorStatic */
/* Description: return the ColorStatic property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_ColorStatic(OLE_COLOR *pColor)
{
if (!pColor)
{
return E_POINTER;
}
*pColor = m_clrColorStatic;
return S_OK;
}
/*************************************************************************/
/* Function: put_ColorPush */
/* Description: set the ColorPush property. This is the color of text */
/* in the Static (normal) state. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_ColorStatic(OLE_COLOR clrColor)
{
m_clrColorStatic = clrColor;
if (m_uiState == TextState::Static)
{
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_ColorDisable */
/* Description: return the ColorDisable property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_ColorDisable(OLE_COLOR *pColor)
{
if (!pColor)
{
return E_POINTER;
}
*pColor = m_clrColorDisable;
return S_OK;
}
/*************************************************************************/
/* Function: put_ColorDisable */
/* Description: set the ColorDisable property. This is the color of text */
/* in the Disabled state. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_ColorDisable(OLE_COLOR clrColor)
{
m_clrColorDisable = clrColor;
if (m_uiState == TextState::Disabled)
{
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_ColorActive */
/* Description: return the ColorActive property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_ColorActive(OLE_COLOR *pColor)
{
if (!pColor)
{
return E_POINTER;
}
*pColor = m_clrColorActive;
return S_OK;
}
/*************************************************************************/
/* Function: put_ColorActive */
/* Description: set the ColorActive property. This is the color of text */
/* in the Active state. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_ColorActive(OLE_COLOR clrColor)
{
m_clrColorActive = clrColor;
if (m_uiState == TextState::Active)
{
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_TextState */
/* Description: return the TextState property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_TextState(long *pState)
{
if (!pState)
{
return E_POINTER;
}
*pState = m_uiState;
return S_OK;
}
/*************************************************************************/
/* Function: put_TextState */
/* Description: set the TextState property. It should be one of: */
/* Static = 0, Hover = 1, Push = 2, Disabled = 3, Active = 4. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_TextState(long lState)
{
if (lState < 0 || lState > 4)
{
return E_INVALIDARG;
}
if ((UINT)lState != m_uiState)
{
m_uiState = (UINT)lState;
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_Disable */
/* Description: return the Disable property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_Disable(VARIANT_BOOL *pVal)
{
if (!pVal)
{
return E_POINTER;
}
*pVal = m_fDisabled?VARIANT_TRUE:VARIANT_FALSE;
return S_OK;
}
/*************************************************************************/
/* Function: put_Disable */
/* Description: set the Disable property. */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_Disable(VARIANT_BOOL newVal)
{
bool fDisabled;
if (newVal == VARIANT_TRUE)
{
fDisabled = true;
m_uiState = TextState::Disabled;
}
else
{
fDisabled = false;
m_uiState = TextState::Static;
}
if (fDisabled != m_fDisabled)
{
m_fDisabled = fDisabled;
m_fDirty = true;
}
return S_OK;
}
/*************************************************************************/
/* Function: get_EdgeStyle */
/* Description: return the EdgeStyle. */
/*************************************************************************/
STDMETHODIMP CMSMFText::get_EdgeStyle(BSTR *pStyle)
{
if (!pStyle)
{
return E_POINTER;
}
switch (m_uiEdgeStyle)
{
case 0: // no edge
*pStyle = SysAllocString(L"None");
break;
case EDGE_SUNKEN:
*pStyle = SysAllocString(L"Sunken");
break;
case EDGE_RAISED:
*pStyle = SysAllocString(L"Raised");
break;
default:
// we should not reach here
*pStyle = NULL;
DebugBreak();
}
return S_OK;
}
/*************************************************************************/
/* Function: put_EdgeStyle */
/* Description: set the EdgeStyle property. Must be one of "None", */
/* "Raised", or "Sunken". Default is "None". */
/*************************************************************************/
STDMETHODIMP CMSMFText::put_EdgeStyle(BSTR wsStyle)
{
UINT uiStyle = 0;
//set the text alignment
if (!_wcsicmp(wsStyle, L"None"))
{
uiStyle = 0;
}
else if (!_wcsicmp(wsStyle, L"Sunken"))
{
uiStyle = EDGE_SUNKEN;
}
else if (!_wcsicmp(wsStyle, L"Raised"))
{
uiStyle = EDGE_RAISED;
}
if (m_uiEdgeStyle != uiStyle)
{
m_uiEdgeStyle = uiStyle;
FireViewChange();
}
return S_OK;
}
/*************************************************************************/
/* Function: OnButtonDown */
/* Description: Handles when buttons is selected. Captures the mouse */
/* movents (supported for windowless, via interfaces). */
/*************************************************************************/
LRESULT CMSMFText::OnButtonDown(UINT, WPARAM wParam, LPARAM lParam, BOOL& bHandled){
if (m_uiState == TextState::Disabled){
return 0;
}/* end of if statement */
LONG xPos = GET_X_LPARAM(lParam);
LONG yPos = GET_Y_LPARAM(lParam);
if(PtOnButton(xPos, yPos)){
// we are really on the buttons bitmap and we pushed it
if(TextState::Hover != m_uiState){
// in hover case we already have captured the mouse, so do not do
// that again
SetCapture(true); // capture the mouse messages
}/* end of if statement */
SetButtonState(TextState::Push);
}/* end of if statement */
return 0;
}/* end of function OnButtonDown */
/*************************************************************************/
/* Function: OnButtonUp */
/* Description: Releases the capture, updates the button visual state, */
/* and if release on the buttons image fire the event. */
/*************************************************************************/
LRESULT CMSMFText::OnButtonUp(UINT, WPARAM wParam, LPARAM lParam, BOOL& bHandled){
if (m_uiState == TextState::Disabled)
return 0;
LONG xPos = GET_X_LPARAM(lParam);
LONG yPos = GET_Y_LPARAM(lParam);
bool bOnButtonImage = PtOnButton(xPos, yPos);
bool bFire = (m_uiState == TextState::Push);
if(bOnButtonImage){
SetButtonState(TextState::Static); //change to static even
SetCapture(false); // release the capture of the mouse messages
}
else {
SetButtonState(TextState::Static);
// do it only when we do not hower, if we hower, then keep the capture
SetCapture(false); // release the capture of the mouse messages
}/* end of if statement */
if (bFire){
if(bOnButtonImage){
Fire_OnClick();
}/* end of if statement */
}/* end of if statement */
return 0;
}/* end of function OnButtonUp */
/*************************************************************************/
/* Function: OnMouseMove */
/* Description: Check if we were captured/pushed the do not do much, */
/* otherwise do the hit detection and see if we are in static or hower */
/* state. */
/*************************************************************************/
LRESULT CMSMFText::OnMouseMove(UINT, WPARAM wParam, LPARAM lParam, BOOL& bHandled){
if (m_uiState == TextState::Disabled)
return 0;
LONG xPos = GET_X_LPARAM(lParam);
LONG yPos = GET_Y_LPARAM(lParam);
if (m_uiState != TextState::Push){
if(PtOnButton(xPos, yPos)){
if(TextState::Hover != m_uiState || S_OK != GetCapture()){
SetCapture(true); // capture the mouse messages
SetButtonState(TextState::Hover);
}/* end of if statement */
}
else {
if(TextState::Static != m_uiState){
SetCapture(false); // release the capture of the mouse messages
SetButtonState(TextState::Static);
}/* end of if statement */
}/* end of if statement */
}/* end of if statement */
return 0;
}/* end of function OnMouseMove */
/*************************************************************************/
/* Function: OnSetFocus */
/* Description: If we are in disabled state SetFocus(false) */
/*************************************************************************/
LRESULT CMSMFText::OnSetFocus(UINT msg, WPARAM wParam, LPARAM lParam, BOOL& bHandled){
if (m_uiState == TextState::Disabled){
if(GetFocus() == S_OK){
SetFocus(false);
}/* end of if statement */
return(-1);
}/* end of if statement */
return 0;
}/* end of function OnSetFocus */
/*************************************************************************/
/* Function: PtOnButton */
/* Description: Uses helper to do the same. */
/*************************************************************************/
bool CMSMFText::PtOnButton(LONG x, LONG y){
POINT pos = {x, y};
return(PtOnButton(pos));
}/* end of function PtOnButton */
/*************************************************************************/
/* Function: PtOnButton */
/* Description: Determines if the point is located on the button. */
/* TODO: Needs to be modified when we will handle transparent color. */
/*************************************************************************/
bool CMSMFText::PtOnButton(POINT pos){
RECT rc;
bool bRet = false;
if(m_bWndLess){
rc = m_rcPos;
}
else {
if(!::IsWindow(m_hWnd)){
return(bRet);
}/* end of if statement */
::GetClientRect(m_hWnd, &rc);
}/* end of if statement */
bRet = PtInRect(&rc, pos) ? true : false;
//TODO: Add also if we are on bitmap itsels possibly
#ifdef _DEBUG
if(bRet)
ATLTRACE2(atlTraceWindowing, 20, TEXT("Point x = %d y = %d in Rect left = %d top %d right %d bottom %d\n"),
pos.x, pos.y, m_rcPos.left, m_rcPos.top, m_rcPos.right, m_rcPos.bottom);
else
ATLTRACE2(atlTraceWindowing, 20, TEXT("Point x = %d y = %d NOT ON RECT Rect left = %d top %d right %d bottom %d\n"),
pos.x, pos.y, m_rcPos.left, m_rcPos.top, m_rcPos.right, m_rcPos.bottom);
#endif
return(bRet);
}/* end of function PtOnButton */
/*************************************************************************/
/* Function: SetButtonState */
/* Description: Sets the button states forces redraw. */
/*************************************************************************/
HRESULT CMSMFText::SetButtonState(TextState txtState){
HRESULT hr = S_OK;
bool fRedraw = false;
if((UINT)txtState != m_uiState ){
fRedraw = true;
}/* end of if statement */
m_uiState = txtState;
if(fRedraw){
if (m_uiState == TextState::Disabled){
SetFocus(false); // disable the focus
SetCapture(false);
}/* end of if statement */
m_fDirty = true;
FireViewChange(); // update the display
}/* end of if statement */
return(hr);
}/* end of function SetButtonState */
STDMETHODIMP CMSMFText::get_TextWidth(long *pVal)
{
// special case early return
if (m_bstrTextValue.Length() == 0)
{
*pVal = 0;
return S_OK;
}
// get the current window or the window of its parent
HWND hwnd = GetWindow();
HDC hdc = ::GetWindowDC(hwnd);
// normalize to pixel coord as required by the container
SetMapMode(hdc, MM_TEXT);
if (m_fDirty)
{
SetTextProperties();
}
SIZE size;
m_cText.GetTextWidth(hdc, m_bstrTextValue, &size);
*pVal = size.cx;
::ReleaseDC(hwnd, hdc);
return S_OK;
}
STDMETHODIMP CMSMFText::get_TextHeight(long *pVal)
{
// get the current window or the window of its parent
HWND hwnd = GetWindow();
HDC hdc = ::GetWindowDC(hwnd);
// normalize to pixel coord as required by the container
SetMapMode(hdc, MM_TEXT);
if (m_fDirty)
{
SetTextProperties();
}
SIZE size;
m_cText.GetTextWidth(hdc, m_bstrTextValue, &size);
*pVal = size.cy;
::ReleaseDC(hwnd, hdc); // do not forget to free DC
return S_OK;
}
STDMETHODIMP CMSMFText::get_TransparentText(VARIANT_BOOL *pVal)
{
if (!pVal)
{
return E_POINTER;
}
*pVal = m_fTransparent?VARIANT_TRUE:VARIANT_FALSE;
return S_OK;
}
STDMETHODIMP CMSMFText::put_TransparentText(VARIANT_BOOL newVal)
{
bool fTransparent;
if (newVal == VARIANT_FALSE)
{
fTransparent = false;
}
else
{
fTransparent = true;
}
if (fTransparent != m_fTransparent)
{
m_fTransparent = fTransparent;
FireViewChange();
}
return S_OK;
}
/*************************************************************/
/* Name: SetObjectRects */
/*************************************************************/
STDMETHODIMP CMSMFText::SetObjectRects(LPCRECT prcPos,LPCRECT prcClip){
// Call the default method first
IOleInPlaceObjectWindowlessImpl<CMSMFText>::SetObjectRects(prcPos, prcClip);
FireViewChange();
return S_OK;
}/* end of function SetObjectRects */
/*************************************************************************/
/* Function: OnSize */
/*************************************************************************/
LRESULT CMSMFText::OnSize(UINT, WPARAM wParam, LPARAM lParam, BOOL& bHandled){
bHandled = true;
FireViewChange();
return 0;
}/* end of function OnSize */
/*************************************************************************/
/* End of file: MSMFText.cpp */
/*************************************************************************/
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