Move CBitmap interface closer to motif port for easier porting.

git-svn-id: http://svn.drobilla.net/lad/mda-lv2@1342 a436a847-0d15-0410-975c-d299462d15a1

2 files changed, 44 insertions, 29 deletions

diff --git a/vstgui/vstgui.cpp b/vstgui/vstgui.cpp
index ab52007..365c16b 100644
--- a/vstgui/vstgui.cpp
+++ b/vstgui/vstgui.cpp
@@ -90,7 +90,6 @@ AEffGUIEditor::AEffGUIEditor (AudioEffect* effect)
 : AEffEditor (effect),
   lLastTicks (0),
   inIdleStuff (false),
-  bundlePath(NULL),
   frame (0)
 {
     rect.left = rect.top = rect.right = rect.bottom = 0;
@@ -322,6 +321,11 @@ void CRect::bound (const CRect& rect)
 
 namespace VSTGUI {
 
+char* bundlePath = NULL;
+void setBundlePath(const char* path) {
+	VSTGUI::bundlePath = strdup(path);
+}
+
 CColor kTransparentCColor = {255, 255, 255,   0};
 CColor kBlackCColor       = {  0,   0,   0, 255};
 CColor kWhiteCColor       = {255, 255, 255, 255};
@@ -3436,36 +3440,34 @@ void CViewContainer::dumpHierarchy ()
 // CBitmap Implementation
 //-----------------------------------------------------------------------------
 /*! @class CBitmap
-@section cbitmap_alphablend Alpha Blend and Transparency
-With Version 3.0 of VSTGUI it is possible to use alpha blended bitmaps. This comes free on Mac OS X and with Windows you need to include libpng.
-Per default PNG images will be rendered alpha blended. If you want to use a transparency color with PNG Bitmaps, you need to call setNoAlpha(true) on the bitmap and set the transparency color.
-@section cbitmap_macos Classic Apple Mac OS
-The Bitmaps are PICTs and stored inside the resource fork.
-@section cbitmap_macosx Apple Mac OS X
-The Bitmaps can be of type PNG, JPEG, PICT, BMP and are stored in the Resources folder of the plugin bundle.
-They must be named bmp00100.png (or bmp00100.jpg, etc). The number is the resource id.
-@section cbitmap_windows Microsoft Windows
-The Bitmaps are .bmp files and must be included in the plug (usually using a .rc file).
-It's also possible to use png as of version 3.0 if you define the macro USE_LIBPNG and include the libpng and zlib libraries/sources to your project.
-*/
-CBitmap::CBitmap (AEffGUIEditor& editor, const char* filename)
-    : resourceID (resourceID), width (0), height (0), noAlpha (true)
+ * Image resources must be in PNG format.
+ * Filenames are specified by the pngResources table defined in the GUI.
+ */
+CBitmap::CBitmap (long ID)
+    : resourceID (ID), width (0), height (0), noAlpha (true)
 {
 #if DEBUG
     gNbCBitmap++;
 #endif
-
-    bool found = false;
-    long  i = 0;
-    long  ncolors, cpp;
-
-    pHandle = 0;
-    pMask  = 0;
     
-	if (editor.getBundlePath() == NULL) {
+	bool found = false;
+    long i = 0;
+    
+	const char* p = NULL;
+	while (pngResources[i].id != 0) {
+        if (pngResources[i].id == resourceID) {
+            if (pngResources[i].path != NULL) {
+				found = true;
+				p = pngResources[i].path;
+				break;
+			}
+		}
+	}
+    
+	if (VSTGUI::bundlePath == NULL) {
 		std::cerr << "ERROR: No bundle path set, unable to load images" << std::endl;
 	} else {
-		std::string path = std::string(editor.getBundlePath()) + filename;
+		std::string path = std::string(VSTGUI::bundlePath) + p;
 		if (openPng(path.c_str())) // reads width, height
 			closePng();
 	}
diff --git a/vstgui/vstgui.h b/vstgui/vstgui.h
index 22fcb84..9ee6be0 100644
--- a/vstgui/vstgui.h
+++ b/vstgui/vstgui.h
@@ -68,10 +68,27 @@ struct ERect {
 	VstInt16 bottom;
 };
 
+/** Table of PNG resources (by filename).
+ * This is ugly and weird, but designed to allow for easy porting
+ * from "motif" ported plugins (via simple search/replacing).
+ */
+struct CResTableEntry {
+    int         id;   ///< Resource ID (same as motif)
+    const char* path; ///< Filename (was char** xpmdata for motif)
+};
+
+typedef CResTableEntry CResTable[];
+extern CResTable pngResources;
+
 //----------------------------------------------------
 //----------------------------------------------------
 namespace VSTGUI {
 
+extern char* bundlePath;
+void setBundlePath(const char* path);
+
+
+
 class CFrame;
 class CDrawContext;
 class COffscreenContext;
@@ -122,9 +139,6 @@ public:
     void idle ();
     void update ();
 
-	void setBundlePath(const char* path) { bundlePath = strdup(path); }
-	const char* getBundlePath() { return bundlePath; }
-
 #if VST_2_1_EXTENSIONS
     long onKeyDown (VstKeyCode& keyCode);
     long onKeyUp (VstKeyCode& keyCode);
@@ -137,7 +151,6 @@ protected:
     unsigned int lLastTicks;
     bool inIdleStuff;
     static VstInt32 knobMode;
-	char* bundlePath;
     friend class VSTGUI::CFrame;
     VSTGUI::CFrame* frame;
 };
@@ -655,7 +668,7 @@ protected:
 class CBitmap : public CReferenceCounter
 {
 public:
-    CBitmap (AEffGUIEditor& editor, const char* img_name); ///< Create from a filename
+    CBitmap (long resourceID); ///< Create from a filename
     CBitmap (CFrame &frame, CCoord width, CCoord height); ///< Create a pixmap with a given size.
     virtual ~CBitmap ();