#include "config.h"
#endif
-#define G_LOG_DOMAIN "freeglut-menu"
-
#include "../include/GL/freeglut.h"
#include "freeglut_internal.h"
-/*
- * TODO BEFORE THE STABLE RELEASE:
- *
- * Wouldn't 1.0 have been "the" stable release? Now we are past 2.0,
- * so this comment is probably just out of date. (20031026; rkr)
- *
- * Think about the possibility of doing the menu on layers *or* using the
- * native window system instead of OpenGL.
- */
-
/* -- DEFINITIONS ---------------------------------------------------------- */
/*
* symbolic constant, FREEGLUT_MENU_ITEM_BORDER, or such.)
*/
#if TARGET_HOST_WIN32
-#define FREEGLUT_MENU_FONT GLUT_BITMAP_8_BY_13
+#define FREEGLUT_MENU_FONT GLUT_BITMAP_8_BY_13
#else
-#define FREEGLUT_MENU_FONT GLUT_BITMAP_HELVETICA_18
+#define FREEGLUT_MENU_FONT GLUT_BITMAP_HELVETICA_18
#endif
-#define FREEGLUT_MENU_HEIGHT (glutBitmapHeight(FREEGLUT_MENU_FONT) + FREEGLUT_MENU_BORDER)
+#define FREEGLUT_MENU_HEIGHT (glutBitmapHeight(FREEGLUT_MENU_FONT) + \
+ FREEGLUT_MENU_BORDER)
#define FREEGLUT_MENU_BORDER 2
static float menu_pen_hback [4] = {1.0f, 1.0f, 1.0f, 1.0f};
#endif
-
/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
/*
SFG_MenuEntry *entry;
int i = 1;
- for( entry = (SFG_MenuEntry *)menu->Entries.First; entry; entry = (SFG_MenuEntry *)entry->Node.Next)
+ for( entry = (SFG_MenuEntry *)menu->Entries.First;
+ entry;
+ entry = (SFG_MenuEntry *)entry->Node.Next )
{
- if (i == index)
+ if( i == index )
break;
++i;
}
*/
static GLboolean fghCheckMenuStatus( SFG_Window* window, SFG_Menu* menu )
{
- SFG_MenuEntry* menuEntry;
- int x, y;
-
- /*
- * First of all check any of the active sub menus...
- */
- for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry;
- menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
- {
- if( menuEntry->SubMenu != NULL && menuEntry->IsActive == TRUE )
+ SFG_MenuEntry* menuEntry;
+ int x, y;
+
+ /*
+ * First of all check any of the active sub menus...
+ */
+ for( menuEntry = (SFG_MenuEntry *)menu->Entries.First;
+ menuEntry;
+ menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
{
- /*
- * OK, have the sub-menu checked, too. If it returns TRUE, it will mean
- * that it caught the mouse cursor and we do not need to regenerate
- * the activity list, and so our parents do...
- */
- GLboolean return_status = fghCheckMenuStatus( window, menuEntry->SubMenu ) ;
-
- /*
- * Reactivate the submenu as the checkMenuStatus may have turned it off
- * if the mouse is in its parent menu entry.
- */
- menuEntry->SubMenu->IsActive = TRUE ;
- if ( return_status == TRUE )
- return( TRUE );
+ if( menuEntry->SubMenu && menuEntry->IsActive )
+ {
+ /*
+ * OK, have the sub-menu checked, too. If it returns GL_TRUE, it
+ * will mean that it caught the mouse cursor and we do not need
+ * to regenerate the activity list, and so our parents do...
+ */
+ GLboolean return_status = fghCheckMenuStatus( window,
+ menuEntry->SubMenu );
+
+ /*
+ * Reactivate the submenu as the checkMenuStatus may have turned
+ * it off if the mouse is in its parent menu entry.
+ */
+ menuEntry->SubMenu->IsActive = GL_TRUE;
+ if ( return_status )
+ return GL_TRUE;
+ }
}
- }
-
- /*
- * That much about our sub menus, let's get to checking the current menu:
- */
- x = window->State.MouseX;
- y = window->State.MouseY;
-
- for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry;
- menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
- {
- menuEntry->IsActive = FALSE;
- }
-
-
- menu->IsActive = FALSE;
-
- /*
- * Check if the mouse cursor is contained within the current menu box
- */
- if( ( x >= FREEGLUT_MENU_BORDER ) &&
- ( x < menu->Width - FREEGLUT_MENU_BORDER ) &&
- ( y >= FREEGLUT_MENU_BORDER ) &&
- ( y < menu->Height - FREEGLUT_MENU_BORDER ) &&
- ( window == menu->Window ) )
- {
- int menuID = ( y - FREEGLUT_MENU_BORDER ) / FREEGLUT_MENU_HEIGHT ;
/*
- * The mouse cursor is somewhere over our box, check it out.
+ * That much about our sub menus, let's get to checking the current menu:
*/
- menuEntry = fghFindMenuEntry( menu, menuID + 1 );
- assert( menuEntry != NULL );
+ x = window->State.MouseX;
+ y = window->State.MouseY;
+
+ for( menuEntry = (SFG_MenuEntry *)menu->Entries.First;
+ menuEntry;
+ menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
+ menuEntry->IsActive = GL_FALSE;
- menuEntry->IsActive = TRUE;
- menuEntry->Ordinal = menuID;
+ menu->IsActive = GL_FALSE;
/*
- * If this is not the same as the last active menu entry, deactivate the
- * previous entry. Specifically, if the previous active entry was a
- * submenu then deactivate it.
+ * Check if the mouse cursor is contained within the current menu box
*/
- if ( menu->ActiveEntry && ( menuEntry != menu->ActiveEntry ) )
+ if( ( x >= FREEGLUT_MENU_BORDER ) &&
+ ( x < menu->Width - FREEGLUT_MENU_BORDER ) &&
+ ( y >= FREEGLUT_MENU_BORDER ) &&
+ ( y < menu->Height - FREEGLUT_MENU_BORDER ) &&
+ ( window == menu->Window ) )
{
- if ( menu->ActiveEntry->SubMenu != NULL )
- fgDeactivateSubMenu ( menu->ActiveEntry ) ;
- }
+ int menuID = ( y - FREEGLUT_MENU_BORDER ) / FREEGLUT_MENU_HEIGHT;
- menu->ActiveEntry = menuEntry ;
- menu->IsActive = TRUE;
+ /*
+ * The mouse cursor is somewhere over our box, check it out.
+ */
+ menuEntry = fghFindMenuEntry( menu, menuID + 1 );
+ assert( menuEntry );
- /*
- * OKi, we have marked that entry as active, but it would be also
- * nice to have its contents updated, in case it's a sub menu.
- * Also, ignore the return value of the check function:
- */
- if( menuEntry->SubMenu != NULL )
- {
- if ( ! menuEntry->SubMenu->IsActive )
- {
- SFG_Window *current_window = fgStructure.Window ;
+ menuEntry->IsActive = GL_TRUE;
+ menuEntry->Ordinal = menuID;
/*
- * Set up the initial menu position now...
+ * If this is not the same as the last active menu entry, deactivate
+ * the previous entry. Specifically, if the previous active entry
+ * was a submenu then deactivate it.
*/
+ if( menu->ActiveEntry && ( menuEntry != menu->ActiveEntry ) )
+ if( menu->ActiveEntry->SubMenu )
+ fgDeactivateSubMenu( menu->ActiveEntry );
- menuEntry->SubMenu->IsActive = TRUE ;
+ menu->ActiveEntry = menuEntry;
+ menu->IsActive = GL_TRUE;
+
+ /*
+ * OKi, we have marked that entry as active, but it would be also
+ * nice to have its contents updated, in case it's a sub menu.
+ * Also, ignore the return value of the check function:
+ */
+ if( menuEntry->SubMenu )
+ {
+ if ( ! menuEntry->SubMenu->IsActive )
+ {
+ SFG_Window *current_window = fgStructure.Window;
+
+ /*
+ * Set up the initial menu position now...
+ */
+ menuEntry->SubMenu->IsActive = GL_TRUE;
+
+ /*
+ * Set up the initial submenu position now:
+ */
+ menuEntry->SubMenu->X = menu->X + menu->Width;
+ menuEntry->SubMenu->Y = menu->Y +
+ menuEntry->Ordinal * FREEGLUT_MENU_HEIGHT;
+
+ if( menuEntry->SubMenu->X + menuEntry->SubMenu->Width >
+ glutGet( GLUT_SCREEN_WIDTH ) )
+ menuEntry->SubMenu->X = menu->X -
+ menuEntry->SubMenu->Width;
+
+ if( menuEntry->SubMenu->Y + menuEntry->SubMenu->Height >
+ glutGet( GLUT_SCREEN_HEIGHT ) )
+ menuEntry->SubMenu->Y -= ( menuEntry->SubMenu->Height -
+ FREEGLUT_MENU_HEIGHT -
+ 2 * FREEGLUT_MENU_BORDER );
+
+ fgSetWindow( menuEntry->SubMenu->Window );
+ glutPositionWindow( menuEntry->SubMenu->X,
+ menuEntry->SubMenu->Y );
+ glutReshapeWindow( menuEntry->SubMenu->Width,
+ menuEntry->SubMenu->Height );
+ glutPopWindow( );
+ glutShowWindow( );
+ menuEntry->SubMenu->Window->ActiveMenu = menuEntry->SubMenu;
+ fgSetWindow( current_window );
+ }
+
+ fghCheckMenuStatus( window, menuEntry->SubMenu );
+
+ /*
+ * Activate it because its parent entry is active
+ */
+ menuEntry->SubMenu->IsActive = GL_TRUE;
+ }
/*
- * Set up the initial submenu position now:
+ * Report back that we have caught the menu cursor
*/
- menuEntry->SubMenu->X = menu->X + menu->Width ;
- menuEntry->SubMenu->Y = menu->Y + menuEntry->Ordinal * FREEGLUT_MENU_HEIGHT ;
-
- if ( menuEntry->SubMenu->X + menuEntry->SubMenu->Width > glutGet (GLUT_SCREEN_WIDTH ) )
- menuEntry->SubMenu->X = menu->X - menuEntry->SubMenu->Width;
-
- if ( menuEntry->SubMenu->Y + menuEntry->SubMenu->Height > glutGet (GLUT_SCREEN_HEIGHT ) )
- menuEntry->SubMenu->Y -= (menuEntry->SubMenu->Height -
- FREEGLUT_MENU_HEIGHT - 2*FREEGLUT_MENU_BORDER);
-
- fgSetWindow ( menuEntry->SubMenu->Window ) ;
- glutPositionWindow ( menuEntry->SubMenu->X, menuEntry->SubMenu->Y ) ;
- glutReshapeWindow ( menuEntry->SubMenu->Width, menuEntry->SubMenu->Height ) ;
- glutPopWindow () ;
- glutShowWindow () ;
- menuEntry->SubMenu->Window->ActiveMenu = menuEntry->SubMenu ;
- fgSetWindow ( current_window ) ;
- }
-
- fghCheckMenuStatus( window, menuEntry->SubMenu );
-
- /*
- * Activate it because its parent entry is active
- */
- menuEntry->SubMenu->IsActive = TRUE ;
+ return GL_TRUE;
}
/*
- * Report back that we have caught the menu cursor
+ * Looks like the menu cursor is somewhere else...
*/
- return( TRUE );
- }
-
- /*
- * Looks like the menu cursor is somewhere else...
- */
- return( FALSE );
+ return GL_FALSE;
}
/*
*/
static void fghDisplayMenuBox( SFG_Menu* menu )
{
- SFG_MenuEntry *menuEntry;
- int i;
- int border = FREEGLUT_MENU_BORDER ;
-
- /*
- * Have the menu box drawn first. The +- values are
- * here just to make it more nice-looking...
- */
- glColor4f( 1.0f, 1.0f, 1.0f, 1.0f ); /* a non-black dark version of the below. */
- glBegin( GL_QUAD_STRIP );
- glVertex2i( menu->Width , 0 );
- glVertex2i( menu->Width-border, border);
- glVertex2i( 0 , 0 );
- glVertex2i( border, border);
- glVertex2i( 0 , menu->Height );
- glVertex2i( border, menu->Height-border);
- glEnd();
-
- glColor4f( 0.5f, 0.5f, 0.5f, 1.0f ); /* a non-black dark version of the below. */
- glBegin( GL_QUAD_STRIP );
- glVertex2i( 0 , menu->Height );
- glVertex2i( border, menu->Height-border);
- glVertex2i( menu->Width , menu->Height );
- glVertex2i( menu->Width-border, menu->Height-border);
- glVertex2i( menu->Width , 0 );
- glVertex2i( menu->Width-border, border);
- glEnd();
-
- glColor4fv ( menu_pen_back ) ;
- glBegin( GL_QUADS );
- glVertex2i( border, border);
- glVertex2i( menu->Width-border, border);
- glVertex2i( menu->Width-border, menu->Height-border);
- glVertex2i( border, menu->Height-border);
- glEnd();
-
- /*
- * Check if any of the submenus is currently active...
- */
- for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry;
- menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
- {
- /*
- * Has the menu been marked as active, maybe?
- */
- if( menuEntry->IsActive == TRUE )
+ SFG_MenuEntry *menuEntry;
+ int i;
+ int border = FREEGLUT_MENU_BORDER;
+
+ /*
+ * Have the menu box drawn first. The +- values are
+ * here just to make it more nice-looking...
+ */
+ /* a non-black dark version of the below. */
+ glColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
+ glBegin( GL_QUAD_STRIP );
+ glVertex2i( menu->Width , 0 );
+ glVertex2i( menu->Width - border, border);
+ glVertex2i( 0 , 0 );
+ glVertex2i( border, border);
+ glVertex2i( 0 , menu->Height );
+ glVertex2i( border, menu->Height - border);
+ glEnd( );
+
+ /* a non-black dark version of the below. */
+ glColor4f( 0.5f, 0.5f, 0.5f, 1.0f );
+ glBegin( GL_QUAD_STRIP );
+ glVertex2i( 0 , menu->Height );
+ glVertex2i( border, menu->Height - border);
+ glVertex2i( menu->Width , menu->Height );
+ glVertex2i( menu->Width - border, menu->Height - border);
+ glVertex2i( menu->Width , 0 );
+ glVertex2i( menu->Width - border, border);
+ glEnd( );
+
+ glColor4fv( menu_pen_back );
+ glBegin( GL_QUADS );
+ glVertex2i( border, border);
+ glVertex2i( menu->Width - border, border);
+ glVertex2i( menu->Width - border, menu->Height - border);
+ glVertex2i( border, menu->Height - border);
+ glEnd( );
+
+ /*
+ * Check if any of the submenus is currently active...
+ */
+ for( menuEntry = (SFG_MenuEntry *)menu->Entries.First;
+ menuEntry;
+ menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
{
- /*
- * That's truly right, and we need to have it highlighted.
- * There is an assumption that mouse cursor didn't move
- * since the last check of menu activity state:
- */
- int menuID = menuEntry->Ordinal;
-
- /*
- * So have the highlight drawn...
- */
- glColor4fv ( menu_pen_hback ) ;
- glBegin( GL_QUADS );
- glVertex2i( FREEGLUT_MENU_BORDER, (menuID + 0)*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER );
- glVertex2i( menu->Width-FREEGLUT_MENU_BORDER, (menuID + 0)*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER );
- glVertex2i( menu->Width-FREEGLUT_MENU_BORDER, (menuID + 1)*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER );
- glVertex2i( FREEGLUT_MENU_BORDER, (menuID + 1)*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER );
- glEnd();
+ /*
+ * Has the menu been marked as active, maybe?
+ */
+ if( menuEntry->IsActive )
+ {
+ /*
+ * That's truly right, and we need to have it highlighted.
+ * There is an assumption that mouse cursor didn't move
+ * since the last check of menu activity state:
+ */
+ int menuID = menuEntry->Ordinal;
+
+ /*
+ * So have the highlight drawn...
+ */
+ glColor4fv( menu_pen_hback );
+ glBegin( GL_QUADS );
+ glVertex2i( border,
+ (menuID + 0)*FREEGLUT_MENU_HEIGHT + border );
+ glVertex2i( menu->Width - border,
+ (menuID + 0)*FREEGLUT_MENU_HEIGHT + border );
+ glVertex2i( menu->Width - border,
+ (menuID + 1)*FREEGLUT_MENU_HEIGHT + border );
+ glVertex2i( border,
+ (menuID + 1)*FREEGLUT_MENU_HEIGHT + border );
+ glEnd( );
+ }
}
- }
-
- /*
- * Print the menu entries now...
- */
- glColor4fv ( menu_pen_fore );
-
- for( menuEntry = (SFG_MenuEntry *)menu->Entries.First, i=0; menuEntry;
- menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next, ++i )
- {
/*
- * If the menu entry is active, set the color to white
+ * Print the menu entries now...
*/
- if ( menuEntry->IsActive )
- glColor4fv ( menu_pen_hfore ) ;
-
- /*
- * Move the raster into position...
- */
- glRasterPos2i(
- 2 * FREEGLUT_MENU_BORDER,
- (i + 1)*FREEGLUT_MENU_HEIGHT-(int)(FREEGLUT_MENU_HEIGHT*0.3 - FREEGLUT_MENU_BORDER ) /* Try to center the text - JCJ 31 July 2003*/
- );
- /*
- * Have the label drawn, character after character:
- */
- glutBitmapString( FREEGLUT_MENU_FONT, menuEntry->Text);
+ glColor4fv( menu_pen_fore );
- /*
- * If it's a submenu, draw a right arrow
- */
- if ( menuEntry->SubMenu != NULL )
+ for( menuEntry = (SFG_MenuEntry *)menu->Entries.First, i = 0;
+ menuEntry;
+ menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next, ++i )
{
- int width = glutBitmapWidth ( FREEGLUT_MENU_FONT, '_' ) ;
- int x_base = menu->Width - 2 - width;
- int y_base = i*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER;
- glBegin( GL_TRIANGLES );
- glVertex2i( x_base, y_base + 2*FREEGLUT_MENU_BORDER);
- glVertex2i( menu->Width - 2, y_base + (FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER) / 2 );
- glVertex2i( x_base, y_base + FREEGLUT_MENU_HEIGHT - FREEGLUT_MENU_BORDER);
- glEnd( );
- }
+ /*
+ * If the menu entry is active, set the color to white
+ */
+ if( menuEntry->IsActive )
+ glColor4fv( menu_pen_hfore );
- /*
- * If the menu entry is active, reset the color
- */
- if ( menuEntry->IsActive )
- glColor4fv ( menu_pen_fore ) ;
- }
+ /*
+ * Move the raster into position...
+ */
+ /* Try to center the text - JCJ 31 July 2003*/
+ glRasterPos2i(
+ 2 * border,
+ ( i + 1 )*FREEGLUT_MENU_HEIGHT -
+ ( int )( FREEGLUT_MENU_HEIGHT*0.3 - border )
+ );
+
+ /*
+ * Have the label drawn, character after character:
+ */
+ glutBitmapString( FREEGLUT_MENU_FONT, (unsigned char *) menuEntry->Text);
+
+ /*
+ * If it's a submenu, draw a right arrow
+ */
+ if( menuEntry->SubMenu )
+ {
+ int width = glutBitmapWidth( FREEGLUT_MENU_FONT, '_' );
+ int x_base = menu->Width - 2 - width;
+ int y_base = i*FREEGLUT_MENU_HEIGHT + border;
+ glBegin( GL_TRIANGLES );
+ glVertex2i( x_base, y_base + 2*border);
+ glVertex2i( menu->Width - 2, y_base +
+ ( FREEGLUT_MENU_HEIGHT + border) / 2 );
+ glVertex2i( x_base, y_base + FREEGLUT_MENU_HEIGHT - border );
+ glEnd( );
+ }
+
+ /*
+ * If the menu entry is active, reset the color
+ */
+ if( menuEntry->IsActive )
+ glColor4fv( menu_pen_fore );
+ }
- /*
- * Now we are ready to check if any of our children needs to be redrawn:
- */
- for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry;
- menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
- {
/*
- * Is that an active sub menu by any case?
+ * Now we are ready to check if any of our children needs to be redrawn:
*/
- if( menuEntry->SubMenu != NULL && menuEntry->IsActive == TRUE )
+ for( menuEntry = ( SFG_MenuEntry * )menu->Entries.First;
+ menuEntry;
+ menuEntry = ( SFG_MenuEntry * )menuEntry->Node.Next )
{
- /*
- * Yeah, indeed. Have it redrawn now:
- */
- fgSetWindow ( menuEntry->SubMenu->Window ) ;
- fghDisplayMenuBox( menuEntry->SubMenu );
- fgSetWindow ( menu->Window ) ;
+ /*
+ * Is that an active sub menu by any case?
+ */
+ if( menuEntry->SubMenu && menuEntry->IsActive )
+ {
+ /*
+ * Yeah, indeed. Have it redrawn now:
+ */
+ fgSetWindow( menuEntry->SubMenu->Window );
+ fghDisplayMenuBox( menuEntry->SubMenu );
+ fgSetWindow( menu->Window );
+ }
}
- }
}
/*
- * Private static function to set the parent window of a submenu and all of its submenus
+ * Private static function to set the parent window of a submenu and all
+ * of its submenus
*/
-static void fghSetSubmenuParentWindow ( SFG_Window *window, SFG_Menu *menu )
+static void fghSetSubmenuParentWindow( SFG_Window *window, SFG_Menu *menu )
{
- SFG_MenuEntry *menuEntry ;
+ SFG_MenuEntry *menuEntry;
- menu->ParentWindow = window ;
+ menu->ParentWindow = window;
- for ( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry; menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
- {
- if ( menuEntry->SubMenu != NULL )
- fghSetSubmenuParentWindow ( window, menuEntry->SubMenu ) ;
- }
+ for( menuEntry = ( SFG_MenuEntry * )menu->Entries.First;
+ menuEntry;
+ menuEntry = ( SFG_MenuEntry * )menuEntry->Node.Next )
+ if( menuEntry->SubMenu )
+ fghSetSubmenuParentWindow( window, menuEntry->SubMenu );
}
SFG_Window* window = fgStructure.Window;
SFG_Menu* menu = NULL;
- /*
- * Make sure there is a current window available
- */
freeglut_assert_window;
/*
* Check if there is an active menu attached to this window...
*/
menu = window->ActiveMenu;
+ freeglut_return_if_fail( menu );
- /*
- * Did we find an active menu?
- */
- freeglut_return_if_fail( menu != NULL );
-
- fgSetWindow ( menu->Window ) ;
+ fgSetWindow( menu->Window );
- /*
- * Prepare the OpenGL state to do the rendering first:
- */
- glPushAttrib( GL_DEPTH_BUFFER_BIT | GL_TEXTURE_BIT | GL_LIGHTING_BIT | GL_POLYGON_BIT );
+ glPushAttrib( GL_DEPTH_BUFFER_BIT | GL_TEXTURE_BIT | GL_LIGHTING_BIT |
+ GL_POLYGON_BIT );
glDisable( GL_DEPTH_TEST );
glDisable( GL_TEXTURE_2D );
glDisable( GL_LIGHTING );
glDisable( GL_CULL_FACE );
- /*
- * We'll use an orthogonal projection matrix to draw the menu:
- */
glMatrixMode( GL_PROJECTION );
- glPushMatrix();
- glLoadIdentity();
+ glPushMatrix( );
+ glLoadIdentity( );
glOrtho(
0, glutGet( GLUT_WINDOW_WIDTH ),
glutGet( GLUT_WINDOW_HEIGHT ), 0,
-1, 1
);
- /*
- * Model-view matix gets reset to identity:
- */
glMatrixMode( GL_MODELVIEW );
- glPushMatrix();
- glLoadIdentity();
+ glPushMatrix( );
+ glLoadIdentity( );
- /*
- * First of all, have the exact menu status check:
- */
fghCheckMenuStatus( window, menu );
-
- /*
- * The status has been updated and we're ready to have the menu drawn now:
- */
fghDisplayMenuBox( menu );
- /*
- * Restore the old OpenGL settings now
- */
- glPopAttrib();
+ glPopAttrib( );
glMatrixMode( GL_PROJECTION );
- glPopMatrix();
+ glPopMatrix( );
glMatrixMode( GL_MODELVIEW );
- glPopMatrix();
+ glPopMatrix( );
- glutSwapBuffers () ;
+ glutSwapBuffers( );
- /*
- * Restore the current window
- */
- fgSetWindow ( window ) ;
+ fgSetWindow ( window );
}
/*
*/
void fgActivateMenu( SFG_Window* window, int button )
{
- /*
- * We'll be referencing this menu a lot, so remember its address:
- */
- SFG_Menu* menu = window->Menu[ button ];
-
- /*
- * Mark the menu as active, so that it gets displayed:
- */
- window->ActiveMenu = menu;
- menu->IsActive = TRUE ;
- fgState.ActiveMenus ++ ;
-
- /*
- * Set up the initial menu position now:
- */
-
- menu->X = window->State.MouseX + glutGet ( GLUT_WINDOW_X ) ;
- menu->Y = window->State.MouseY + glutGet ( GLUT_WINDOW_Y ) ;
-
- if ( menu->X + menu->Width > glutGet ( GLUT_SCREEN_WIDTH ) )
- menu->X -=menu->Width ;
-
- if ( menu->Y + menu->Height > glutGet ( GLUT_SCREEN_HEIGHT ) )
- menu->Y -=menu->Height ;
-
- fgSetWindow ( menu->Window ) ;
- glutPositionWindow ( menu->X, menu->Y ) ;
- glutReshapeWindow ( menu->Width, menu->Height ) ;
- glutPopWindow () ;
- glutShowWindow () ;
- menu->Window->ActiveMenu = menu ;
+ /*
+ * We'll be referencing this menu a lot, so remember its address:
+ */
+ SFG_Menu* menu = window->Menu[ button ];
+ /*
+ * Mark the menu as active, so that it gets displayed:
+ */
+ window->ActiveMenu = menu;
+ menu->IsActive = GL_TRUE;
+ fgState.ActiveMenus++;
+
+ /*
+ * Set up the initial menu position now:
+ */
+ menu->X = window->State.MouseX + glutGet( GLUT_WINDOW_X );
+ menu->Y = window->State.MouseY + glutGet( GLUT_WINDOW_Y );
+
+ if( menu->X + menu->Width > glutGet ( GLUT_SCREEN_WIDTH ) )
+ menu->X -=menu->Width;
+
+ if( menu->Y + menu->Height > glutGet ( GLUT_SCREEN_HEIGHT ) )
+ menu->Y -=menu->Height;
+
+ fgSetWindow( menu->Window );
+ glutPositionWindow( menu->X, menu->Y );
+ glutReshapeWindow( menu->Width, menu->Height );
+ glutPopWindow( );
+ glutShowWindow( );
+ menu->Window->ActiveMenu = menu;
}
/*
*/
GLboolean fgCheckActiveMenu ( SFG_Window *window, SFG_Menu *menu )
{
- /*
- * Near as I can tell, this is the active menu behaviour:
- * - Down-click any button outside the menu, menu active: deactivate the menu
- * - Down-click any button inside the menu, menu active: select the menu entry and deactivate the menu
- * - Up-click the menu button outside the menu, menu active: nothing happens
- * - Up-click the menu button inside the menu, menu active: select the menu entry and deactivate the menu
- * Since menus can have submenus, we need to check this recursively.
- */
- return fghCheckMenuStatus ( window, menu ) ;
+ /*
+ * Near as I can tell, this is the active menu behaviour:
+ * - Down-click any button outside the menu, menu active:
+ * deactivate the menu
+ * - Down-click any button inside the menu, menu active:
+ * select the menu entry and deactivate the menu
+ * - Up-click the menu button outside the menu, menu active:
+ * nothing happens
+ * - Up-click the menu button inside the menu, menu active:
+ * select the menu entry and deactivate the menu
+ * Since menus can have submenus, we need to check this recursively.
+ */
+ return fghCheckMenuStatus( window, menu );
}
/*
*/
void fgExecuteMenuCallback( SFG_Menu* menu )
{
- SFG_MenuEntry *menuEntry;
+ SFG_MenuEntry *menuEntry;
- /*
- * First of all check any of the active sub menus...
- */
- for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry; menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next)
- {
/*
- * Is this menu entry active?
+ * First of all check any of the active sub menus...
*/
- if( menuEntry->IsActive == TRUE )
+ for( menuEntry = (SFG_MenuEntry *)menu->Entries.First;
+ menuEntry;
+ menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next)
{
- /*
- * If there is not a sub menu, execute the menu callback and return...
- */
- if( menuEntry->SubMenu == NULL )
- {
- /*
- * ...certainly given that there is one...
- */
- if( menu->Callback != NULL )
- menu->Callback( menuEntry->ID );
-
- return;
- }
-
- /*
- * Otherwise recurse into the submenu.
- */
- fgExecuteMenuCallback( menuEntry->SubMenu );
-
- /*
- * There is little sense in dwelling the search on
- */
- return;
+ if( menuEntry->IsActive )
+ {
+ if( menuEntry->SubMenu )
+ fgExecuteMenuCallback( menuEntry->SubMenu );
+ else
+ if( menu->Callback )
+ menu->Callback( menuEntry->ID );
+ return;
+ }
}
- }
}
/*
*/
void fgDeactivateMenu( SFG_Window *window )
{
- SFG_Window *current_window = fgStructure.Window ;
+ SFG_Window *current_window = fgStructure.Window;
/*
* Check if there is an active menu attached to this window...
*/
SFG_Menu* menu = window->ActiveMenu;
- SFG_MenuEntry *menuEntry ;
+ SFG_MenuEntry *menuEntry;
/*
* Did we find an active window?
*/
- freeglut_return_if_fail( menu != NULL );
+ freeglut_return_if_fail( menu );
/*
* Hide the present menu's window
*/
- fgSetWindow ( menu->Window ) ;
- glutHideWindow () ;
+ fgSetWindow( menu->Window );
+ glutHideWindow( );
/*
* Forget about having that menu active anymore, now:
*/
- menu->Window->ActiveMenu = NULL ;
- menu->ParentWindow->ActiveMenu = NULL ;
- menu->IsActive = FALSE ;
+ menu->Window->ActiveMenu = NULL;
+ menu->ParentWindow->ActiveMenu = NULL;
+ menu->IsActive = GL_FALSE;
- fgState.ActiveMenus -- ;
+ fgState.ActiveMenus--;
/*
* Hide all submenu windows, and the root menu's window.
*/
- for ( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry;
- menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
+ for ( menuEntry = ( SFG_MenuEntry * )menu->Entries.First;
+ menuEntry;
+ menuEntry = ( SFG_MenuEntry * )menuEntry->Node.Next )
{
- /*
- * Is that an active submenu by any case?
- */
- if ( menuEntry->SubMenu != NULL )
- fgDeactivateSubMenu ( menuEntry ) ;
+ /*
+ * Is that an active submenu by any case?
+ */
+ if( menuEntry->SubMenu )
+ fgDeactivateSubMenu( menuEntry );
}
- fgSetWindow ( current_window ) ;
+ fgSetWindow( current_window );
}
/*
*/
void fgDeactivateSubMenu( SFG_MenuEntry *menuEntry )
{
- SFG_Window *current_window = fgStructure.Window ;
- SFG_MenuEntry *subMenuIter ;
+ SFG_Window *current_window = fgStructure.Window;
+ SFG_MenuEntry *subMenuIter;
/*
* Hide the present menu's window
*/
- fgSetWindow ( menuEntry->SubMenu->Window ) ;
- glutHideWindow () ;
+ fgSetWindow( menuEntry->SubMenu->Window );
+ glutHideWindow( );
/*
* Forget about having that menu active anymore, now:
*/
- menuEntry->SubMenu->Window->ActiveMenu = NULL ;
- menuEntry->SubMenu->IsActive = FALSE ;
+ menuEntry->SubMenu->Window->ActiveMenu = NULL;
+ menuEntry->SubMenu->IsActive = GL_FALSE;
/*
* Hide all submenu windows, and the root menu's window.
*/
- for ( subMenuIter = (SFG_MenuEntry *)menuEntry->SubMenu->Entries.First; subMenuIter;
+ for ( subMenuIter = (SFG_MenuEntry *)menuEntry->SubMenu->Entries.First;
+ subMenuIter;
subMenuIter = (SFG_MenuEntry *)subMenuIter->Node.Next )
{
- /*
- * Is that an active submenu by any case?
- */
- if ( subMenuIter->SubMenu != NULL )
- fgDeactivateSubMenu ( subMenuIter ) ;
+ /*
+ * Is that an active submenu by any case?
+ */
+ if( subMenuIter->SubMenu )
+ fgDeactivateSubMenu( subMenuIter );
}
- fgSetWindow ( current_window ) ;
+ fgSetWindow( current_window );
}
/*
*/
void fghCalculateMenuBoxSize( void )
{
- SFG_MenuEntry* menuEntry;
- int width = 0, height = 0;
-
- /*
- * Make sure there is a current menu set
- */
- freeglut_assert_ready; freeglut_return_if_fail( fgStructure.Menu != NULL );
+ SFG_MenuEntry* menuEntry;
+ int width = 0, height = 0;
- /*
- * The menu's box size depends on the menu entries:
- */
- for( menuEntry = (SFG_MenuEntry *)fgStructure.Menu->Entries.First; menuEntry;
- menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next)
- {
/*
- * Update the menu entry's width value
+ * Make sure there is a current menu set
*/
- menuEntry->Width = glutBitmapLength( FREEGLUT_MENU_FONT, menuEntry->Text );
+ freeglut_assert_ready;
+ freeglut_return_if_fail( fgStructure.Menu );
/*
- * If the entry is a submenu, then it needs to be wider to accomodate the arrow. JCJ 31 July 2003
+ * The menu's box size depends on the menu entries:
*/
+ for( menuEntry = ( SFG_MenuEntry * )fgStructure.Menu->Entries.First;
+ menuEntry;
+ menuEntry = ( SFG_MenuEntry * )menuEntry->Node.Next )
+ {
+ /*
+ * Update the menu entry's width value
+ */
+ menuEntry->Width = glutBitmapLength( FREEGLUT_MENU_FONT,
+ (unsigned char *) menuEntry->Text );
- if (menuEntry->SubMenu != NULL)
- menuEntry->Width += glutBitmapLength( FREEGLUT_MENU_FONT, "_" );
+ /*
+ * If the entry is a submenu, then it needs to be wider to
+ * accomodate the arrow. JCJ 31 July 2003
+ */
+ if (menuEntry->SubMenu )
+ menuEntry->Width += glutBitmapLength( FREEGLUT_MENU_FONT, (unsigned char *) "_" );
- /*
- * Check if it's the biggest we've found
- */
- if( menuEntry->Width > width )
- width = menuEntry->Width;
+ /*
+ * Check if it's the biggest we've found
+ */
+ if( menuEntry->Width > width )
+ width = menuEntry->Width;
- height += FREEGLUT_MENU_HEIGHT;
- }
+ height += FREEGLUT_MENU_HEIGHT;
+ }
- /*
- * Store the menu's box size now:
- */
- fgStructure.Menu->Height = height + 2 * FREEGLUT_MENU_BORDER ;
- fgStructure.Menu->Width = width + 4 * FREEGLUT_MENU_BORDER ;
+ /*
+ * Store the menu's box size now:
+ */
+ fgStructure.Menu->Height = height + 2 * FREEGLUT_MENU_BORDER;
+ fgStructure.Menu->Width = width + 4 * FREEGLUT_MENU_BORDER;
}
/*
* Creates a new menu object, adding it to the freeglut structure
*/
-int FGAPIENTRY glutCreateMenu( void (* callback)( int ) )
+int FGAPIENTRY glutCreateMenu( void(* callback)( int ) )
{
/*
* The menu object creation code resides in freeglut_structure.c
*/
- return( fgCreateMenu( callback )->ID );
+ return fgCreateMenu( callback )->ID;
}
/*
{
SFG_Menu* menu = fgMenuByID( menuID );
- freeglut_assert_ready; freeglut_return_if_fail( menu != NULL );
+ freeglut_assert_ready;
+ freeglut_return_if_fail( menu );
/*
* The menu object destruction code resides in freeglut_structure.c
int FGAPIENTRY glutGetMenu( void )
{
freeglut_assert_ready;
- if( fgStructure.Menu != NULL )
- return( fgStructure.Menu->ID );
- return( 0 );
+
+ if( fgStructure.Menu )
+ return fgStructure.Menu->ID;
+
+ return 0;
}
/*
SFG_Menu* menu = fgMenuByID( menuID );
freeglut_assert_ready;
- freeglut_return_if_fail( menu != NULL );
+ freeglut_return_if_fail( menu );
+
fgStructure.Menu = menu;
}
*/
void FGAPIENTRY glutAddMenuEntry( const char* label, int value )
{
- SFG_MenuEntry* menuEntry = (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 );
+ SFG_MenuEntry* menuEntry =
+ (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 );
freeglut_assert_ready;
- freeglut_return_if_fail( fgStructure.Menu != NULL );
+ freeglut_return_if_fail( fgStructure.Menu );
+
menuEntry->Text = strdup( label );
menuEntry->ID = value;
* Have the new menu entry attached to the current menu
*/
fgListAppend( &fgStructure.Menu->Entries, &menuEntry->Node );
- fghCalculateMenuBoxSize();
+
+ fghCalculateMenuBoxSize( );
}
/*
* Add a sub menu to the bottom of the current menu
*/
-void FGAPIENTRY glutAddSubMenu( const char* label, int subMenuID )
+void FGAPIENTRY glutAddSubMenu( const char *label, int subMenuID )
{
- SFG_MenuEntry* menuEntry = (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 );
- SFG_Menu* subMenu = fgMenuByID( subMenuID );
-
- freeglut_assert_ready;
- freeglut_return_if_fail( fgStructure.Menu != NULL );
- freeglut_return_if_fail( subMenu != NULL );
-
- menuEntry->Text = strdup( label );
- menuEntry->SubMenu = subMenu;
- menuEntry->ID = -1;
-
- /*
- * Make the submenu's parent window be the menu's parent window
- */
- fghSetSubmenuParentWindow ( fgStructure.Menu->ParentWindow, subMenu ) ;
- fgListAppend( &fgStructure.Menu->Entries, &menuEntry->Node );
- fghCalculateMenuBoxSize();
+ SFG_MenuEntry *menuEntry =
+ ( SFG_MenuEntry * )calloc( sizeof( SFG_MenuEntry ), 1 );
+ SFG_Menu *subMenu = fgMenuByID( subMenuID );
+
+ freeglut_assert_ready;
+ freeglut_return_if_fail( fgStructure.Menu );
+ freeglut_return_if_fail( subMenu );
+
+ menuEntry->Text = strdup( label );
+ menuEntry->SubMenu = subMenu;
+ menuEntry->ID = -1;
+
+ /*
+ * Make the submenu's parent window be the menu's parent window
+ */
+ fghSetSubmenuParentWindow( fgStructure.Menu->ParentWindow, subMenu );
+
+ fgListAppend( &fgStructure.Menu->Entries, &menuEntry->Node );
+ fghCalculateMenuBoxSize( );
}
/*
SFG_MenuEntry* menuEntry = NULL;
freeglut_assert_ready;
- freeglut_return_if_fail( fgStructure.Menu != NULL );
+ freeglut_return_if_fail( fgStructure.Menu );
+
+ /*
+ * Get n-th menu entry in the current menu, starting from one:
+ */
menuEntry = fghFindMenuEntry( fgStructure.Menu, item );
- freeglut_return_if_fail( menuEntry != NULL );
+
+ freeglut_return_if_fail( menuEntry );
/*
* We want it to become a normal menu entry, so:
*/
- if( menuEntry->Text != NULL )
+ if( menuEntry->Text )
free( menuEntry->Text );
- menuEntry->Text = strdup( label );
+ menuEntry->Text = strdup( label );
menuEntry->ID = value;
menuEntry->SubMenu = NULL;
-
- fghCalculateMenuBoxSize();
+ fghCalculateMenuBoxSize( );
}
/*
* Changes the specified menu item in the current menu into a sub-menu trigger.
*/
-void FGAPIENTRY glutChangeToSubMenu( int item, const char* label, int subMenuID )
+void FGAPIENTRY glutChangeToSubMenu( int item, const char* label,
+ int subMenuID )
{
SFG_Menu* subMenu = fgMenuByID( subMenuID );
SFG_MenuEntry* menuEntry = NULL;
freeglut_assert_ready;
freeglut_return_if_fail( fgStructure.Menu );
freeglut_return_if_fail( subMenu );
+
+ /*
+ * Get n-th menu entry in the current menu, starting from one:
+ */
menuEntry = fghFindMenuEntry( fgStructure.Menu, item );
+
freeglut_return_if_fail( menuEntry );
/*
if( menuEntry->Text )
free( menuEntry->Text );
- menuEntry->Text = strdup( label );
+ menuEntry->Text = strdup( label );
menuEntry->SubMenu = subMenu;
menuEntry->ID = -1;
-
- fghCalculateMenuBoxSize();
+ fghCalculateMenuBoxSize( );
}
/*
freeglut_assert_ready;
freeglut_return_if_fail( fgStructure.Menu );
+
+ /*
+ * Get n-th menu entry in the current menu, starting from one:
+ */
menuEntry = fghFindMenuEntry( fgStructure.Menu, item );
+
freeglut_return_if_fail( menuEntry );
+
fgListRemove( &fgStructure.Menu->Entries, &menuEntry->Node );
- free( menuEntry->Text );
+ if ( menuEntry->Text )
+ free( menuEntry->Text );
+
free( menuEntry );
- fghCalculateMenuBoxSize();
+ fghCalculateMenuBoxSize( );
}
/*
void FGAPIENTRY glutAttachMenu( int button )
{
freeglut_assert_ready;
+
freeglut_return_if_fail( fgStructure.Window );
freeglut_return_if_fail( fgStructure.Menu );
+
freeglut_return_if_fail( button >= 0 );
freeglut_return_if_fail( button < FREEGLUT_MAX_MENUS );
+
fgStructure.Window->Menu[ button ] = fgStructure.Menu;
/*
* Make the parent window of the menu (and all submenus) the current window
*/
- fghSetSubmenuParentWindow ( fgStructure.Window, fgStructure.Menu ) ;
+ fghSetSubmenuParentWindow( fgStructure.Window, fgStructure.Menu );
}
/*
void FGAPIENTRY glutDetachMenu( int button )
{
freeglut_assert_ready;
+
freeglut_return_if_fail( fgStructure.Window );
freeglut_return_if_fail( fgStructure.Menu );
+
freeglut_return_if_fail( button >= 0 );
freeglut_return_if_fail( button < FREEGLUT_MAX_MENUS );
+
fgStructure.Window->Menu[ button ] = NULL;
}
*/
void* FGAPIENTRY glutGetMenuData( void )
{
- return(fgStructure.Menu->UserData);
+ return fgStructure.Menu->UserData;
}
void FGAPIENTRY glutSetMenuData(void* data)
{
- fgStructure.Menu->UserData=data;
+ fgStructure.Menu->UserData=data;
}
/*** END OF FILE ***/
projects / freeglut / blobdiff