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reactos/dll/win32/uxtheme/msstyles.c
Ethan Rodensky e31031f603 [UXTHEME] Allow PNG images in visual styles (#5540) 
This is prerequisite to supporting Vista+ iteration of the msstyles format,
and also for implementing GetThemeStream() later.

Visual styles compiled for Vista+ can now use PNG images in the IMAGE group.
This does not affect the ability to use BMP images, they can be mixed now.
2023-08-31 20:42:03 +03:00

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/*
* Win32 5.1 msstyles theme format
*
* Copyright (C) 2003 Kevin Koltzau
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "uxthemep.h"
#include <wine/unicode.h>
/***********************************************************************
* Defines and global variables
*/
extern int alphaBlendMode;
#define MSSTYLES_VERSION 0x0003
static const WCHAR szThemesIniResource[] = {
't','h','e','m','e','s','_','i','n','i','\0'
};
/***********************************************************************/
/**********************************************************************
* MSSTYLES_OpenThemeFile
*
* Load and validate a theme
*
* PARAMS
* lpThemeFile Path to theme file to load
* pszColorName Color name wanted, can be NULL
* pszSizeName Size name wanted, can be NULL
*
* NOTES
* If pszColorName or pszSizeName are NULL, the default color/size will be used.
* If one/both are provided, they are validated against valid color/sizes and if
* a match is not found, the function fails.
*/
HRESULT MSSTYLES_OpenThemeFile(LPCWSTR lpThemeFile, LPCWSTR pszColorName, LPCWSTR pszSizeName, PTHEME_FILE *tf)
{
HMODULE hTheme;
HRSRC hrsc;
HRESULT hr = S_OK;
static const WCHAR szPackThemVersionResource[] = {
'P','A','C','K','T','H','E','M','_','V','E','R','S','I','O','N', '\0'
};
static const WCHAR szColorNamesResource[] = {
'C','O','L','O','R','N','A','M','E','S','\0'
};
static const WCHAR szSizeNamesResource[] = {
'S','I','Z','E','N','A','M','E','S','\0'
};
WORD version;
DWORD versize;
LPWSTR pszColors;
LPWSTR pszSelectedColor = NULL;
LPWSTR pszSizes;
LPWSTR pszSelectedSize = NULL;
LPWSTR tmp;
TRACE("Opening %s\n", debugstr_w(lpThemeFile));
hTheme = LoadLibraryExW(lpThemeFile, NULL, LOAD_LIBRARY_AS_DATAFILE);
/* Validate that this is really a theme */
if(!hTheme) {
hr = HRESULT_FROM_WIN32(GetLastError());
goto invalid_theme;
}
if(!(hrsc = FindResourceW(hTheme, MAKEINTRESOURCEW(1), szPackThemVersionResource))) {
TRACE("No version resource found\n");
hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
goto invalid_theme;
}
if((versize = SizeofResource(hTheme, hrsc)) != 2)
{
TRACE("Version resource found, but wrong size: %d\n", versize);
hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
goto invalid_theme;
}
version = *(WORD*)LoadResource(hTheme, hrsc);
if(version != MSSTYLES_VERSION)
{
TRACE("Version of theme file is unsupported: 0x%04x\n", version);
hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
goto invalid_theme;
}
if(!(hrsc = FindResourceW(hTheme, MAKEINTRESOURCEW(1), szColorNamesResource))) {
TRACE("Color names resource not found\n");
hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
goto invalid_theme;
}
pszColors = LoadResource(hTheme, hrsc);
if(!(hrsc = FindResourceW(hTheme, MAKEINTRESOURCEW(1), szSizeNamesResource))) {
TRACE("Size names resource not found\n");
hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
goto invalid_theme;
}
pszSizes = LoadResource(hTheme, hrsc);
/* Validate requested color against what's available from the theme */
if(pszColorName) {
tmp = pszColors;
while(*tmp) {
if(!lstrcmpiW(pszColorName, tmp)) {
pszSelectedColor = tmp;
break;
}
tmp += lstrlenW(tmp)+1;
}
}
else
pszSelectedColor = pszColors; /* Use the default color */
/* Validate requested size against what's available from the theme */
if(pszSizeName) {
tmp = pszSizes;
while(*tmp) {
if(!lstrcmpiW(pszSizeName, tmp)) {
pszSelectedSize = tmp;
break;
}
tmp += lstrlenW(tmp)+1;
}
}
else
pszSelectedSize = pszSizes; /* Use the default size */
if(!pszSelectedColor || !pszSelectedSize) {
TRACE("Requested color/size (%s/%s) not found in theme\n",
debugstr_w(pszColorName), debugstr_w(pszSizeName));
hr = E_PROP_ID_UNSUPPORTED;
goto invalid_theme;
}
*tf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(THEME_FILE));
(*tf)->hTheme = hTheme;
GetFullPathNameW(lpThemeFile, MAX_PATH, (*tf)->szThemeFile, NULL);
(*tf)->pszAvailColors = pszColors;
(*tf)->pszAvailSizes = pszSizes;
(*tf)->pszSelectedColor = pszSelectedColor;
(*tf)->pszSelectedSize = pszSelectedSize;
(*tf)->dwRefCount = 1;
TRACE("Theme %p refcount: %d\n", *tf, (*tf)->dwRefCount);
return S_OK;
invalid_theme:
if(hTheme) FreeLibrary(hTheme);
return hr;
}
/***********************************************************************
* MSSTYLES_CloseThemeFile
*
* Close theme file and free resources
*/
void MSSTYLES_CloseThemeFile(PTHEME_FILE tf)
{
if(tf) {
tf->dwRefCount--;
TRACE("Theme %p refcount: %d\n", tf, tf->dwRefCount);
if(!tf->dwRefCount) {
if(tf->hTheme) FreeLibrary(tf->hTheme);
if(tf->classes) {
while(tf->classes) {
PTHEME_CLASS pcls = tf->classes;
tf->classes = pcls->next;
while(pcls->partstate) {
PTHEME_PARTSTATE ps = pcls->partstate;
while(ps->properties) {
PTHEME_PROPERTY prop = ps->properties;
ps->properties = prop->next;
HeapFree(GetProcessHeap(), 0, prop);
}
pcls->partstate = ps->next;
HeapFree(GetProcessHeap(), 0, ps);
}
HeapFree(GetProcessHeap(), 0, pcls);
}
}
while (tf->images)
{
PTHEME_IMAGE img = tf->images;
tf->images = img->next;
DeleteObject (img->image);
HeapFree (GetProcessHeap(), 0, img);
}
HeapFree(GetProcessHeap(), 0, tf);
}
}
}
/***********************************************************************
* MSSTYLES_ReferenceTheme
*
* Increase the reference count of the theme file
*/
HRESULT MSSTYLES_ReferenceTheme(PTHEME_FILE tf)
{
tf->dwRefCount++;
TRACE("Theme %p refcount: %d\n", tf, tf->dwRefCount);
return S_OK;
}
/***********************************************************************
* MSSTYLES_GetThemeIni
*
* Retrieves themes.ini from a theme
*/
PUXINI_FILE MSSTYLES_GetThemeIni(PTHEME_FILE tf)
{
return UXINI_LoadINI(tf->hTheme, szThemesIniResource);
}
/***********************************************************************
* MSSTYLES_GetActiveThemeIni
*
* Retrieve the ini file for the selected color/style
*/
static PUXINI_FILE MSSTYLES_GetActiveThemeIni(PTHEME_FILE tf)
{
static const WCHAR szFileResNamesResource[] = {
'F','I','L','E','R','E','S','N','A','M','E','S','\0'
};
DWORD dwColorCount = 0;
DWORD dwSizeCount = 0;
DWORD dwColorNum = 0;
DWORD dwSizeNum = 0;
DWORD i;
DWORD dwResourceIndex;
LPWSTR tmp;
HRSRC hrsc;
/* Count the number of available colors & styles, and determine the index number
of the color/style we are interested in
*/
tmp = tf->pszAvailColors;
while(*tmp) {
if(!lstrcmpiW(tf->pszSelectedColor, tmp))
dwColorNum = dwColorCount;
tmp += lstrlenW(tmp)+1;
dwColorCount++;
}
tmp = tf->pszAvailSizes;
while(*tmp) {
if(!lstrcmpiW(tf->pszSelectedSize, tmp))
dwSizeNum = dwSizeCount;
tmp += lstrlenW(tmp)+1;
dwSizeCount++;
}
if(!(hrsc = FindResourceW(tf->hTheme, MAKEINTRESOURCEW(1), szFileResNamesResource))) {
TRACE("FILERESNAMES map not found\n");
return NULL;
}
tmp = LoadResource(tf->hTheme, hrsc);
dwResourceIndex = (dwSizeCount * dwColorNum) + dwSizeNum;
for(i=0; i < dwResourceIndex; i++) {
tmp += lstrlenW(tmp)+1;
}
return UXINI_LoadINI(tf->hTheme, tmp);
}
/***********************************************************************
* MSSTYLES_ParseIniSectionName
*
* Parse an ini section name into its component parts
* Valid formats are:
* [classname]
* [classname(state)]
* [classname.part]
* [classname.part(state)]
* [application::classname]
* [application::classname(state)]
* [application::classname.part]
* [application::classname.part(state)]
*
* PARAMS
* lpSection Section name
* dwLen Length of section name
* szAppName Location to store application name
* szClassName Location to store class name
* iPartId Location to store part id
* iStateId Location to store state id
*/
static BOOL MSSTYLES_ParseIniSectionName(LPCWSTR lpSection, DWORD dwLen, LPWSTR szAppName, LPWSTR szClassName, int *iPartId, int *iStateId)
{
WCHAR sec[255];
WCHAR part[60] = {'\0'};
WCHAR state[60] = {'\0'};
LPWSTR tmp;
LPWSTR comp;
lstrcpynW(sec, lpSection, min(dwLen+1, sizeof(sec)/sizeof(sec[0])));
*szAppName = 0;
*szClassName = 0;
*iPartId = 0;
*iStateId = 0;
comp = sec;
/* Get the application name */
tmp = strchrW(comp, ':');
if(tmp) {
*tmp++ = 0;
tmp++;
lstrcpynW(szAppName, comp, MAX_THEME_APP_NAME);
comp = tmp;
}
tmp = strchrW(comp, '.');
if(tmp) {
*tmp++ = 0;
lstrcpynW(szClassName, comp, MAX_THEME_CLASS_NAME);
comp = tmp;
/* now get the part & state */
tmp = strchrW(comp, '(');
if(tmp) {
*tmp++ = 0;
lstrcpynW(part, comp, sizeof(part)/sizeof(part[0]));
comp = tmp;
/* now get the state */
tmp = strchrW(comp, ')');
if (!tmp)
return FALSE;
*tmp = 0;
lstrcpynW(state, comp, sizeof(state)/sizeof(state[0]));
}
else {
lstrcpynW(part, comp, sizeof(part)/sizeof(part[0]));
}
}
else {
tmp = strchrW(comp, '(');
if(tmp) {
*tmp++ = 0;
lstrcpynW(szClassName, comp, MAX_THEME_CLASS_NAME);
comp = tmp;
/* now get the state */
tmp = strchrW(comp, ')');
if (!tmp)
return FALSE;
*tmp = 0;
lstrcpynW(state, comp, sizeof(state)/sizeof(state[0]));
}
else {
lstrcpynW(szClassName, comp, MAX_THEME_CLASS_NAME);
}
}
if(!*szClassName) return FALSE;
return MSSTYLES_LookupPartState(szClassName, part[0]?part:NULL, state[0]?state:NULL, iPartId, iStateId);
}
/***********************************************************************
* MSSTYLES_FindClass
*
* Find a class
*
* PARAMS
* tf Theme file
* pszAppName App name to find
* pszClassName Class name to find
*
* RETURNS
* The class found, or NULL
*/
static PTHEME_CLASS MSSTYLES_FindClass(PTHEME_FILE tf, LPCWSTR pszAppName, LPCWSTR pszClassName)
{
PTHEME_CLASS cur = tf->classes;
while(cur) {
if(!pszAppName) {
if(!*cur->szAppName && !lstrcmpiW(pszClassName, cur->szClassName))
return cur;
}
else {
if(!lstrcmpiW(pszAppName, cur->szAppName) && !lstrcmpiW(pszClassName, cur->szClassName))
return cur;
}
cur = cur->next;
}
return NULL;
}
/***********************************************************************
* MSSTYLES_AddClass
*
* Add a class to a theme file
*
* PARAMS
* tf Theme file
* pszAppName App name to add
* pszClassName Class name to add
*
* RETURNS
* The class added, or a class previously added with the same name
*/
static PTHEME_CLASS MSSTYLES_AddClass(PTHEME_FILE tf, LPCWSTR pszAppName, LPCWSTR pszClassName)
{
PTHEME_CLASS cur = MSSTYLES_FindClass(tf, pszAppName, pszClassName);
if(cur) return cur;
cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_CLASS));
cur->hTheme = tf->hTheme;
lstrcpyW(cur->szAppName, pszAppName);
lstrcpyW(cur->szClassName, pszClassName);
cur->next = tf->classes;
cur->partstate = NULL;
cur->overrides = NULL;
tf->classes = cur;
return cur;
}
/***********************************************************************
* MSSTYLES_FindPartState
*
* Find a part/state
*
* PARAMS
* tc Class to search
* iPartId Part ID to find
* iStateId State ID to find
* tcNext Receives the next class in the override chain
*
* RETURNS
* The part/state found, or NULL
*/
PTHEME_PARTSTATE MSSTYLES_FindPartState(PTHEME_CLASS tc, int iPartId, int iStateId, PTHEME_CLASS *tcNext)
{
PTHEME_PARTSTATE cur = tc->partstate;
while(cur) {
if(cur->iPartId == iPartId && cur->iStateId == iStateId) {
if(tcNext) *tcNext = tc->overrides;
return cur;
}
cur = cur->next;
}
if(tc->overrides) return MSSTYLES_FindPartState(tc->overrides, iPartId, iStateId, tcNext);
return NULL;
}
/***********************************************************************
* MSSTYLES_AddPartState
*
* Add a part/state to a class
*
* PARAMS
* tc Theme class
* iPartId Part ID to add
* iStateId State ID to add
*
* RETURNS
* The part/state added, or a part/state previously added with the same IDs
*/
static PTHEME_PARTSTATE MSSTYLES_AddPartState(PTHEME_CLASS tc, int iPartId, int iStateId)
{
PTHEME_PARTSTATE cur = MSSTYLES_FindPartState(tc, iPartId, iStateId, NULL);
if(cur) return cur;
cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_PARTSTATE));
cur->iPartId = iPartId;
cur->iStateId = iStateId;
cur->properties = NULL;
cur->next = tc->partstate;
tc->partstate = cur;
return cur;
}
/***********************************************************************
* MSSTYLES_LFindProperty
*
* Find a property within a property list
*
* PARAMS
* tp property list to scan
* iPropertyPrimitive Type of value expected
* iPropertyId ID of the required value
*
* RETURNS
* The property found, or NULL
*/
static PTHEME_PROPERTY MSSTYLES_LFindProperty(PTHEME_PROPERTY tp, int iPropertyPrimitive, int iPropertyId)
{
PTHEME_PROPERTY cur = tp;
while(cur) {
if(cur->iPropertyId == iPropertyId) {
if(cur->iPrimitiveType == iPropertyPrimitive) {
return cur;
}
else {
if(!iPropertyPrimitive)
return cur;
return NULL;
}
}
cur = cur->next;
}
return NULL;
}
/***********************************************************************
* MSSTYLES_PSFindProperty
*
* Find a value within a part/state
*
* PARAMS
* ps Part/state to search
* iPropertyPrimitive Type of value expected
* iPropertyId ID of the required value
*
* RETURNS
* The property found, or NULL
*/
static inline PTHEME_PROPERTY MSSTYLES_PSFindProperty(PTHEME_PARTSTATE ps, int iPropertyPrimitive, int iPropertyId)
{
return MSSTYLES_LFindProperty(ps->properties, iPropertyPrimitive, iPropertyId);
}
/***********************************************************************
* MSSTYLES_FindMetric
*
* Find a metric property for a theme file
*
* PARAMS
* tf Theme file
* iPropertyPrimitive Type of value expected
* iPropertyId ID of the required value
*
* RETURNS
* The property found, or NULL
*/
PTHEME_PROPERTY MSSTYLES_FindMetric(PTHEME_FILE tf, int iPropertyPrimitive, int iPropertyId)
{
return MSSTYLES_LFindProperty(tf->metrics, iPropertyPrimitive, iPropertyId);
}
/***********************************************************************
* MSSTYLES_AddProperty
*
* Add a property to a part/state
*
* PARAMS
* ps Part/state
* iPropertyPrimitive Primitive type of the property
* iPropertyId ID of the property
* lpValue Raw value (non-NULL terminated)
* dwValueLen Length of the value
*
* RETURNS
* The property added, or a property previously added with the same IDs
*/
static PTHEME_PROPERTY MSSTYLES_AddProperty(PTHEME_PARTSTATE ps, int iPropertyPrimitive, int iPropertyId, LPCWSTR lpValue, DWORD dwValueLen, BOOL isGlobal)
{
PTHEME_PROPERTY cur = MSSTYLES_PSFindProperty(ps, iPropertyPrimitive, iPropertyId);
/* Should duplicate properties overwrite the original, or be ignored? */
if(cur) return cur;
cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_PROPERTY));
cur->iPrimitiveType = iPropertyPrimitive;
cur->iPropertyId = iPropertyId;
cur->lpValue = lpValue;
cur->dwValueLen = dwValueLen;
if(ps->iStateId)
cur->origin = PO_STATE;
else if(ps->iPartId)
cur->origin = PO_PART;
else if(isGlobal)
cur->origin = PO_GLOBAL;
else
cur->origin = PO_CLASS;
cur->next = ps->properties;
ps->properties = cur;
return cur;
}
/***********************************************************************
* MSSTYLES_AddMetric
*
* Add a property to a part/state
*
* PARAMS
* tf Theme file
* iPropertyPrimitive Primitive type of the property
* iPropertyId ID of the property
* lpValue Raw value (non-NULL terminated)
* dwValueLen Length of the value
*
* RETURNS
* The property added, or a property previously added with the same IDs
*/
static PTHEME_PROPERTY MSSTYLES_AddMetric(PTHEME_FILE tf, int iPropertyPrimitive, int iPropertyId, LPCWSTR lpValue, DWORD dwValueLen)
{
PTHEME_PROPERTY cur = MSSTYLES_FindMetric(tf, iPropertyPrimitive, iPropertyId);
/* Should duplicate properties overwrite the original, or be ignored? */
if(cur) return cur;
cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_PROPERTY));
cur->iPrimitiveType = iPropertyPrimitive;
cur->iPropertyId = iPropertyId;
cur->lpValue = lpValue;
cur->dwValueLen = dwValueLen;
cur->origin = PO_GLOBAL;
cur->next = tf->metrics;
tf->metrics = cur;
return cur;
}
/***********************************************************************
* MSSTYLES_ParseThemeIni
*
* Parse the theme ini for the selected color/style
*
* PARAMS
* tf Theme to parse
*/
void MSSTYLES_ParseThemeIni(PTHEME_FILE tf)
{
static const WCHAR szSysMetrics[] = {'S','y','s','M','e','t','r','i','c','s','\0'};
static const WCHAR szGlobals[] = {'g','l','o','b','a','l','s','\0'};
PTHEME_CLASS cls;
PTHEME_CLASS globals;
PTHEME_PARTSTATE ps;
PUXINI_FILE ini;
WCHAR szAppName[MAX_THEME_APP_NAME];
WCHAR szClassName[MAX_THEME_CLASS_NAME];
WCHAR szPropertyName[MAX_THEME_VALUE_NAME];
int iPartId;
int iStateId;
int iPropertyPrimitive;
int iPropertyId;
DWORD dwLen;
LPCWSTR lpName;
DWORD dwValueLen;
LPCWSTR lpValue;
if(tf->classes)
return;
ini = MSSTYLES_GetActiveThemeIni(tf);
while((lpName=UXINI_GetNextSection(ini, &dwLen)))
{
if(CompareStringW(LOCALE_SYSTEM_DEFAULT, NORM_IGNORECASE, lpName, dwLen, szSysMetrics, -1) == CSTR_EQUAL)
{
while((lpName=UXINI_GetNextValue(ini, &dwLen, &lpValue, &dwValueLen)))
{
lstrcpynW(szPropertyName, lpName, min(dwLen+1, sizeof(szPropertyName)/sizeof(szPropertyName[0])));
if(MSSTYLES_LookupProperty(szPropertyName, &iPropertyPrimitive, &iPropertyId))
{
/* Catch all metrics, including colors */
MSSTYLES_AddMetric(tf, iPropertyPrimitive, iPropertyId, lpValue, dwValueLen);
}
else
{
TRACE("Unknown system metric %s\n", debugstr_w(szPropertyName));
}
}
continue;
}
if(MSSTYLES_ParseIniSectionName(lpName, dwLen, szAppName, szClassName, &iPartId, &iStateId))
{
BOOL isGlobal = FALSE;
if(!lstrcmpiW(szClassName, szGlobals))
{
isGlobal = TRUE;
}
cls = MSSTYLES_AddClass(tf, szAppName, szClassName);
ps = MSSTYLES_AddPartState(cls, iPartId, iStateId);
while((lpName=UXINI_GetNextValue(ini, &dwLen, &lpValue, &dwValueLen)))
{
lstrcpynW(szPropertyName, lpName, min(dwLen+1, sizeof(szPropertyName)/sizeof(szPropertyName[0])));
if(MSSTYLES_LookupProperty(szPropertyName, &iPropertyPrimitive, &iPropertyId))
{
MSSTYLES_AddProperty(ps, iPropertyPrimitive, iPropertyId, lpValue, dwValueLen, isGlobal);
}
else
{
TRACE("Unknown property %s\n", debugstr_w(szPropertyName));
}
}
}
}
/* App/Class combos override values defined by the base class, map these overrides */
globals = MSSTYLES_FindClass(tf, NULL, szGlobals);
cls = tf->classes;
while(cls)
{
if(*cls->szAppName)
{
cls->overrides = MSSTYLES_FindClass(tf, NULL, cls->szClassName);
if(!cls->overrides)
{
TRACE("No overrides found for app %s class %s\n", debugstr_w(cls->szAppName), debugstr_w(cls->szClassName));
}
else
{
cls->overrides = globals;
}
}
else
{
/* Everything overrides globals..except globals */
if(cls != globals)
cls->overrides = globals;
}
cls = cls->next;
}
UXINI_CloseINI(ini);
if(!tf->classes) {
ERR("Failed to parse theme ini\n");
}
}
/***********************************************************************
* MSSTYLES_OpenThemeClass
*
* Open a theme class, uses the current active theme
*
* PARAMS
* pszAppName Application name, for theme styles specific
* to a particular application
* pszClassList List of requested classes, semicolon delimited
*/
PTHEME_CLASS MSSTYLES_OpenThemeClass(PTHEME_FILE tf, LPCWSTR pszAppName, LPCWSTR pszClassList)
{
PTHEME_CLASS cls = NULL;
#ifdef __REACTOS__
PTHEME_CLASS defaultCls = NULL;
#endif
WCHAR szClassName[MAX_THEME_CLASS_NAME];
LPCWSTR start;
LPCWSTR end;
DWORD len;
if(!tf->classes) {
return NULL;
}
start = pszClassList;
while((end = strchrW(start, ';'))) {
len = end-start;
lstrcpynW(szClassName, start, min(len+1, sizeof(szClassName)/sizeof(szClassName[0])));
start = end+1;
cls = MSSTYLES_FindClass(tf, pszAppName, szClassName);
if(cls) break;
#ifdef __REACTOS__
if (!defaultCls)
defaultCls = MSSTYLES_FindClass(tf, NULL, szClassName);
#endif
}
if(!cls && *start) {
lstrcpynW(szClassName, start, sizeof(szClassName)/sizeof(szClassName[0]));
cls = MSSTYLES_FindClass(tf, pszAppName, szClassName);
#ifdef __REACTOS__
if (!defaultCls)
defaultCls = MSSTYLES_FindClass(tf, NULL, szClassName);
#endif
}
if(cls) {
TRACE("Opened app %s, class %s from list %s\n", debugstr_w(cls->szAppName), debugstr_w(cls->szClassName), debugstr_w(pszClassList));
cls->tf = tf;
cls->tf->dwRefCount++;
TRACE("Theme %p refcount: %d\n", tf, tf->dwRefCount);
}
#ifdef __REACTOS__
else if (defaultCls)
{
cls = defaultCls;
TRACE("Opened default class %s from list %s\n", debugstr_w(cls->szClassName), debugstr_w(pszClassList));
cls->tf = tf;
cls->tf->dwRefCount++;
TRACE("Theme %p refcount: %d\n", tf, tf->dwRefCount);
}
#endif
return cls;
}
/***********************************************************************
* MSSTYLES_CloseThemeClass
*
* Close a theme class
*
* PARAMS
* tc Theme class to close
*
* NOTES
* The MSSTYLES_CloseThemeFile decreases the refcount of the owning
* theme file and cleans it up, if needed.
*/
HRESULT MSSTYLES_CloseThemeClass(PTHEME_CLASS tc)
{
MSSTYLES_CloseThemeFile (tc->tf);
return S_OK;
}
/***********************************************************************
* MSSTYLES_FindProperty
*
* Locate a property in a class. Part and state IDs will be used as a
* preference, but may be ignored in the attempt to locate the property.
* Will scan the entire chain of overrides for this class.
*/
PTHEME_PROPERTY MSSTYLES_FindProperty(PTHEME_CLASS tc, int iPartId, int iStateId, int iPropertyPrimitive, int iPropertyId)
{
PTHEME_CLASS next = tc;
PTHEME_PARTSTATE ps;
PTHEME_PROPERTY tp;
TRACE("(%p, %d, %d, %d)\n", tc, iPartId, iStateId, iPropertyId);
/* Try and find an exact match on part & state */
while(next && (ps = MSSTYLES_FindPartState(next, iPartId, iStateId, &next))) {
if((tp = MSSTYLES_PSFindProperty(ps, iPropertyPrimitive, iPropertyId))) {
return tp;
}
}
/* If that fails, and we didn't already try it, search for just part */
if(iStateId != 0)
iStateId = 0;
/* As a last ditch attempt..go for just class */
else if(iPartId != 0)
iPartId = 0;
else
return NULL;
if((tp = MSSTYLES_FindProperty(tc, iPartId, iStateId, iPropertyPrimitive, iPropertyId)))
return tp;
return NULL;
}
/* Prepare a bitmap to be used for alpha blending */
static BOOL prepare_alpha (HBITMAP bmp, BOOL* hasAlpha)
{
DIBSECTION dib;
int n;
BYTE* p;
*hasAlpha = FALSE;
if (!bmp || GetObjectW( bmp, sizeof(dib), &dib ) != sizeof(dib))
return FALSE;
if(dib.dsBm.bmBitsPixel != 32)
/* nothing to do */
return TRUE;
p = dib.dsBm.bmBits;
n = dib.dsBmih.biHeight * dib.dsBmih.biWidth;
/* AlphaBlend() wants premultiplied alpha, so do that now */
while (n-- > 0)
{
int a = p[3]+1;
p[0] = (p[0] * a) >> 8;
p[1] = (p[1] * a) >> 8;
p[2] = (p[2] * a) >> 8;
p += 4;
if (a != 256)
*hasAlpha = TRUE;
}
return TRUE;
}
HBITMAP MSSTYLES_LoadBitmap (PTHEME_CLASS tc, LPCWSTR lpFilename, BOOL* hasAlpha)
{
WCHAR szFile[MAX_PATH];
LPWSTR tmp;
PTHEME_IMAGE img;
lstrcpynW(szFile, lpFilename, sizeof(szFile)/sizeof(szFile[0]));
tmp = szFile;
do {
if(*tmp == '\\') *tmp = '_';
if(*tmp == '/') *tmp = '_';
if(*tmp == '.') *tmp = '_';
} while(*tmp++);
/* Try to locate in list of loaded images */
img = tc->tf->images;
while (img)
{
if (lstrcmpiW (szFile, img->name) == 0)
{
TRACE ("found %p %s: %p\n", img, debugstr_w (img->name), img->image);
*hasAlpha = img->hasAlpha;
return img->image;
}
img = img->next;
}
/* Not found? Load from resources */
img = HeapAlloc (GetProcessHeap(), 0, sizeof (THEME_IMAGE));
#ifdef ENABLE_PNG_SUPPORT
if (MSSTYLES_TryLoadPng(tc->hTheme, szFile, TEXT(L"IMAGE"), &img->image)) // ...as PNG...
{
prepare_png_alpha(img->image, hasAlpha);
}
else // ...or, failing that, as BMP
{
#endif /* ENABLE_PNG_SUPPORT */
img->image = LoadImageW(tc->hTheme, szFile, IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION);
prepare_alpha (img->image, hasAlpha);
#ifdef ENABLE_PNG_SUPPORT
}
#endif /* ENABLE_PNG_SUPPORT */
img->hasAlpha = *hasAlpha;
/* ...and stow away for later reuse. */
lstrcpyW (img->name, szFile);
img->next = tc->tf->images;
tc->tf->images = img;
TRACE ("new %p %s: %p\n", img, debugstr_w (img->name), img->image);
return img->image;
}
static BOOL MSSTYLES_GetNextInteger(LPCWSTR lpStringStart, LPCWSTR lpStringEnd, LPCWSTR *lpValEnd, int *value)
{
LPCWSTR cur = lpStringStart;
int total = 0;
BOOL gotNeg = FALSE;
while(cur < lpStringEnd && ((*cur < '0' || *cur > '9') && *cur != '-')) cur++;
if(cur >= lpStringEnd) {
return FALSE;
}
if(*cur == '-') {
cur++;
gotNeg = TRUE;
}
while(cur < lpStringEnd && (*cur >= '0' && *cur <= '9')) {
total = total * 10 + (*cur - '0');
cur++;
}
if(gotNeg) total = -total;
*value = total;
if(lpValEnd) *lpValEnd = cur;
return TRUE;
}
static BOOL MSSTYLES_GetNextToken(LPCWSTR lpStringStart, LPCWSTR lpStringEnd, LPCWSTR *lpValEnd, LPWSTR lpBuff, DWORD buffSize) {
LPCWSTR cur = lpStringStart;
LPCWSTR start;
LPCWSTR end;
while(cur < lpStringEnd && (isspace(*cur) || *cur == ',')) cur++;
if(cur >= lpStringEnd) {
return FALSE;
}
start = cur;
while(cur < lpStringEnd && *cur != '\n'&& *cur != ',') cur++;
end = cur;
while(isspace(*(end-1))) end--;
lstrcpynW(lpBuff, start, min(buffSize, end-start+1));
if(lpValEnd) *lpValEnd = cur;
return TRUE;
}
/***********************************************************************
* MSSTYLES_GetPropertyBool
*
* Retrieve a color value for a property
*/
HRESULT MSSTYLES_GetPropertyBool(PTHEME_PROPERTY tp, BOOL *pfVal)
{
*pfVal = FALSE;
if(*tp->lpValue == 't' || *tp->lpValue == 'T')
*pfVal = TRUE;
return S_OK;
}
/***********************************************************************
* MSSTYLES_GetPropertyColor
*
* Retrieve a color value for a property
*/
HRESULT MSSTYLES_GetPropertyColor(PTHEME_PROPERTY tp, COLORREF *pColor)
{
LPCWSTR lpEnd;
LPCWSTR lpCur;
int red, green, blue;
lpCur = tp->lpValue;
lpEnd = tp->lpValue + tp->dwValueLen;
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &red)) {
TRACE("Could not parse color property\n");
return E_PROP_ID_UNSUPPORTED;
}
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &green)) {
TRACE("Could not parse color property\n");
return E_PROP_ID_UNSUPPORTED;
}
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &blue)) {
TRACE("Could not parse color property\n");
return E_PROP_ID_UNSUPPORTED;
}
*pColor = RGB(red,green,blue);
return S_OK;
}
/***********************************************************************
* MSSTYLES_GetPropertyColor
*
* Retrieve a color value for a property
*/
static HRESULT MSSTYLES_GetFont (LPCWSTR lpCur, LPCWSTR lpEnd,
LPCWSTR *lpValEnd, LOGFONTW* pFont)
{
static const WCHAR szBold[] = {'b','o','l','d','\0'};
static const WCHAR szItalic[] = {'i','t','a','l','i','c','\0'};
static const WCHAR szUnderline[] = {'u','n','d','e','r','l','i','n','e','\0'};
static const WCHAR szStrikeOut[] = {'s','t','r','i','k','e','o','u','t','\0'};
int pointSize;
WCHAR attr[32];
if(!MSSTYLES_GetNextToken(lpCur, lpEnd, &lpCur, pFont->lfFaceName, LF_FACESIZE)) {
TRACE("Property is there, but failed to get face name\n");
*lpValEnd = lpCur;
return E_PROP_ID_UNSUPPORTED;
}
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pointSize)) {
TRACE("Property is there, but failed to get point size\n");
*lpValEnd = lpCur;
return E_PROP_ID_UNSUPPORTED;
}
if(pointSize > 0)
{
HDC hdc = GetDC(0);
pointSize = -MulDiv(pointSize, GetDeviceCaps(hdc, LOGPIXELSY), 72);
ReleaseDC(0, hdc);
}
pFont->lfHeight = pointSize;
pFont->lfWeight = FW_REGULAR;
pFont->lfCharSet = DEFAULT_CHARSET;
while(MSSTYLES_GetNextToken(lpCur, lpEnd, &lpCur, attr, sizeof(attr)/sizeof(attr[0]))) {
if(!lstrcmpiW(szBold, attr)) pFont->lfWeight = FW_BOLD;
else if(!lstrcmpiW(szItalic, attr)) pFont->lfItalic = TRUE;
else if(!lstrcmpiW(szUnderline, attr)) pFont->lfUnderline = TRUE;
else if(!lstrcmpiW(szStrikeOut, attr)) pFont->lfStrikeOut = TRUE;
}
*lpValEnd = lpCur;
return S_OK;
}
HRESULT MSSTYLES_GetPropertyFont(PTHEME_PROPERTY tp, HDC hdc, LOGFONTW *pFont)
{
LPCWSTR lpCur = tp->lpValue;
LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
HRESULT hr;
ZeroMemory(pFont, sizeof(LOGFONTW));
hr = MSSTYLES_GetFont (lpCur, lpEnd, &lpCur, pFont);
return hr;
}
/***********************************************************************
* MSSTYLES_GetPropertyInt
*
* Retrieve an int value for a property
*/
HRESULT MSSTYLES_GetPropertyInt(PTHEME_PROPERTY tp, int *piVal)
{
if(!MSSTYLES_GetNextInteger(tp->lpValue, (tp->lpValue + tp->dwValueLen), NULL, piVal)) {
TRACE("Could not parse int property\n");
return E_PROP_ID_UNSUPPORTED;
}
return S_OK;
}
/***********************************************************************
* MSSTYLES_GetPropertyIntList
*
* Retrieve an int list value for a property
*/
HRESULT MSSTYLES_GetPropertyIntList(PTHEME_PROPERTY tp, INTLIST *pIntList)
{
int i;
LPCWSTR lpCur = tp->lpValue;
LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
for(i=0; i < MAX_INTLIST_COUNT; i++) {
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pIntList->iValues[i]))
break;
}
pIntList->iValueCount = i;
return S_OK;
}
/***********************************************************************
* MSSTYLES_GetPropertyPosition
*
* Retrieve a position value for a property
*/
HRESULT MSSTYLES_GetPropertyPosition(PTHEME_PROPERTY tp, POINT *pPoint)
{
int x,y;
LPCWSTR lpCur = tp->lpValue;
LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &x)) {
TRACE("Could not parse position property\n");
return E_PROP_ID_UNSUPPORTED;
}
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &y)) {
TRACE("Could not parse position property\n");
return E_PROP_ID_UNSUPPORTED;
}
pPoint->x = x;
pPoint->y = y;
return S_OK;
}
/***********************************************************************
* MSSTYLES_GetPropertyString
*
* Retrieve a string value for a property
*/
HRESULT MSSTYLES_GetPropertyString(PTHEME_PROPERTY tp, LPWSTR pszBuff, int cchMaxBuffChars)
{
lstrcpynW(pszBuff, tp->lpValue, min(tp->dwValueLen+1, cchMaxBuffChars));
return S_OK;
}
/***********************************************************************
* MSSTYLES_GetPropertyRect
*
* Retrieve a rect value for a property
*/
HRESULT MSSTYLES_GetPropertyRect(PTHEME_PROPERTY tp, RECT *pRect)
{
LPCWSTR lpCur = tp->lpValue;
LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pRect->left);
MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pRect->top);
MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pRect->right);
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pRect->bottom)) {
TRACE("Could not parse rect property\n");
return E_PROP_ID_UNSUPPORTED;
}
return S_OK;
}
/***********************************************************************
* MSSTYLES_GetPropertyMargins
*
* Retrieve a margins value for a property
*/
HRESULT MSSTYLES_GetPropertyMargins(PTHEME_PROPERTY tp, RECT *prc, MARGINS *pMargins)
{
LPCWSTR lpCur = tp->lpValue;
LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pMargins->cxLeftWidth);
MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pMargins->cxRightWidth);
MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pMargins->cyTopHeight);
if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pMargins->cyBottomHeight)) {
TRACE("Could not parse margins property\n");
return E_PROP_ID_UNSUPPORTED;
}
return S_OK;
}
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