Usermode/AxWin3 - More WM IPC messages implemented

[tpg/acess2.git] / Usermode / Applications / axwin3_src / WM / wm.c

diff --git a/Usermode/Applications/axwin3_src/WM/wm.c b/Usermode/Applications/axwin3_src/WM/wm.c
index 0c0756e..7031e37 100644 (file)
--- a/Usermode/Applications/axwin3_src/WM/wm.c
+++ b/Usermode/Applications/axwin3_src/WM/wm.c
@@ -7,15 +7,200 @@
  */
 #include <common.h>
 #include <wm_renderer.h>
+#include <stdlib.h>
+#include <string.h>
+#include <video.h>
+
+// === GLOBALS ===
+tWMRenderer    *gpWM_Renderers;
+tWindow        *gpWM_RootWindow;
 
 // === CODE ===
+void WM_Initialise(void)
+{
+       WM_CreateWindow(NULL, 0x0088FF, "Background");
+       gpWM_RootWindow->W = giScreenWidth;
+       gpWM_RootWindow->H = giScreenHeight;
+       gpWM_RootWindow->Flags = WINFLAG_SHOW;
+}
+
 void WM_RegisterRenderer(tWMRenderer *Renderer)
 {
-       TODO("Implement WM_RegisterRenderer");
+       // TODO: Catch out duplicates
+       Renderer->Next = gpWM_Renderers;
+       gpWM_Renderers = Renderer;
+}
+
+// --- Manipulation
+tWindow *WM_CreateWindow(tWindow *Parent, int RendererArg, const char *RendererName)
+{
+       tWMRenderer     *renderer;
+       tWindow *ret;
+       
+       // - Get Renderer
+       for( renderer = gpWM_Renderers; renderer; renderer = renderer->Next )
+       {
+               if(strcmp(RendererName, renderer->Name) == 0)
+                       break;
+       }
+       if(renderer == NULL)
+               return NULL;
+
+       // - Call create window function
+       ret = renderer->CreateWindow(RendererArg);
+       ret->Parent = Parent;
+       ret->Renderer = renderer;
+
+       if(!Parent)
+               Parent = gpWM_RootWindow;
+
+       // Append to parent
+       if(Parent)
+       {
+               if(Parent->LastChild)
+                       Parent->LastChild->NextSibling = ret;
+               else
+                       Parent->FirstChild = ret;
+               ret->PrevSibling = Parent->LastChild;
+               Parent->LastChild = ret;
+       }
+       else
+       {
+               gpWM_RootWindow = ret;
+       }
+
+       // - Return!
+       return ret;
 }
 
 tWindow *WM_CreateWindowStruct(size_t ExtraSize)
 {
-       return NULL;
+       tWindow *ret;
+       
+       ret = calloc( sizeof(tWindow) + ExtraSize, 1 );
+       ret->RendererInfo = ret + 1;    // Get end of tWindow
+       
+       return ret;
+}
+
+void WM_ShowWindow(tWindow *Window, int bShow)
+{
+       // TODO: Message window
+       if(bShow)
+               Window->Flags |= WINFLAG_SHOW;
+       else
+               Window->Flags &= ~WINFLAG_SHOW;
+}
+
+int WM_MoveWindow(tWindow *Window, int X, int Y)
+{
+       // Clip coordinates
+       if(X + Window->W < 0)   X = -Window->W + 1;
+       if(Y + Window->H < 0)   Y = -Window->H + 1;
+       if(X >= giScreenWidth)  X = giScreenWidth - 1;
+       if(Y >= giScreenHeight) Y = giScreenHeight - 1;
+       
+       Window->X = X;  Window->Y = Y;
+       
+       return 0;
+}
+
+int WM_ResizeWindow(tWindow *Window, int W, int H)
+{
+       if(W <= 0 || H <= 0 )   return 1;
+       if(Window->X + W < 0)   Window->X = -W + 1;
+       if(Window->Y + H < 0)   Window->Y = -H + 1;
+       
+       Window->W = W;  Window->H = H;
+       
+       return 0;
+}
+
+// --- Rendering / Update
+void WM_int_UpdateWindow(tWindow *Window)
+{
+       tWindow *child;
+
+       // Ignore hidden windows
+       if( !(Window->Flags & WINFLAG_SHOW) )
+               return ;
+       // Ignore unchanged windows
+       if( Window->Flags & WINFLAG_CLEAN )
+               return;
+
+       // Render
+       Window->Renderer->Redraw(Window);
+       
+       // Process children
+       for( child = Window->FirstChild; child; child = child->NextSibling )
+       {
+               WM_int_UpdateWindow(child);
+       }
+       
+       Window->Flags |= WINFLAG_CLEAN;
+}
+
+void WM_int_BlitWindow(tWindow *Window)
+{
+       tWindow *child;
+
+       // Ignore hidden windows
+       if( !(Window->Flags & WINFLAG_SHOW) )
+               return ;
+       
+       Video_Blit(Window->RenderBuffer, Window->X, Window->Y, Window->W, Window->H);
+       
+       for( child = Window->FirstChild; child; child = child->NextSibling )
+       {
+               WM_int_BlitWindow(child);
+       }
+}
+
+void WM_Update(void)
+{
+       // Don't redraw if nothing has changed
+       if( gpWM_RootWindow->Flags & WINFLAG_CLEAN )
+               return ;        
+
+       // - Iterate through visible windows, updating them as needed
+       WM_int_UpdateWindow(gpWM_RootWindow);
+       
+       // - Draw windows from back to front to the render buffer
+       WM_int_BlitWindow(gpWM_RootWindow);
+
+       Video_Update();
+}
+
+// --- WM Render Routines
+// TODO: Move to another file?
+void WM_Render_FilledRect(tWindow *Window, tColour Colour, int X, int Y, int W, int H)
+{
+       uint32_t        *dest;
+        int    i;
+       _SysDebug("WM_Render_FilledRect(%p, 0x%x...", Window, Colour);
+       _SysDebug(" (%i,%i), %ix%i)", X, Y, W, H);
+       // Clip to window dimensions
+       if(X < 0) { W += X; X = 0; }
+       if(Y < 0) { H += Y; Y = 0; }
+       if(X >= Window->W)      return;
+       if(Y >= Window->H)      return;
+       if(X + W > Window->W)   W = Window->W - X;
+       if(Y + H > Window->H)   H = Window->H - Y;
+       _SysDebug(" Clipped to (%i,%i), %ix%i", X, Y, W, H);
+
+       // Render to buffer
+       // Create if needed?
+
+       if(!Window->RenderBuffer) {
+               Window->RenderBuffer = malloc(Window->W*Window->H*4);
+       }
+
+       dest = (uint32_t*)Window->RenderBuffer + Y*Window->W + X;
+       while( H -- )
+       {
+               for( i = W; i --; )
+                       *dest++ = Colour;
+               dest += Window->W - W;
+       }
 }