void mxExpressionSlider::GetThumbRect( int barnum, RECT &rcThumb ) { RECT rc; GetSliderRect( rc ); RECT rcBar = rc; GetBarRect( rcBar ); float frac = 0.0f; if ( m_flMax[ barnum ] - m_flMin[ barnum ] > 0 ) { frac = (m_flCurrent[ barnum ] - m_flMin[ barnum ]) / ( m_flMax[ barnum ] - m_flMin[ barnum ] ); } int tickmark = (int)( frac * m_nTicks[ barnum ] + 0.5 ); tickmark = min( m_nTicks[ barnum ], tickmark ); tickmark = max( 0, tickmark ); int thumbwidth = 20; int thumbheight = 14; int xoffset = -thumbwidth / 2; int yoffset = -thumbheight / 2 + 2; int leftedge = rcBar.left + (int)( (float)( rcBar.right - rcBar.left ) * (float)(tickmark) / (float)m_nTicks[ barnum ] ); rcThumb.left = leftedge + xoffset; rcThumb.right = rcThumb.left + thumbwidth; rcThumb.top = rcBar.top + yoffset; rcThumb.bottom = rcThumb.top + thumbheight; }
void mxExpressionSlider::DrawBar( HDC& dc ) { RECT rcBar; GetBarRect( rcBar ); HPEN oldPen; HPEN shadow; HBRUSH face; HPEN hilight; shadow = CreatePen( PS_SOLID, 1, GetSysColor( COLOR_3DSHADOW ) ); hilight = CreatePen( PS_SOLID, 1, GetSysColor( COLOR_3DHIGHLIGHT ) ); face = CreateSolidBrush( GetSysColor( COLOR_3DFACE ) ); oldPen = (HPEN)SelectObject( dc, hilight ); MoveToEx( dc, rcBar.left, rcBar.bottom, NULL ); LineTo( dc, rcBar.left, rcBar.top ); LineTo( dc, rcBar.right, rcBar.top ); SelectObject( dc, shadow ); LineTo( dc, rcBar.right, rcBar.bottom ); LineTo( dc, rcBar.left, rcBar.bottom ); rcBar.left += 1; //rcBar.right -= 1; rcBar.top += 1; rcBar.bottom -= 1; FillRect( dc, &rcBar, face ); SelectObject( dc, oldPen ); DeleteObject( face ); DeleteObject( shadow ); DeleteObject( hilight ); }
void mxExpressionSlider::MoveThumb( int barnum, int xpos, bool finish ) { RECT rcBar; GetBarRect( rcBar ); if ( xpos < rcBar.left ) { m_flCurrent[ barnum ] = m_flMin[ barnum ]; } else if ( xpos > rcBar.right ) { m_flCurrent[ barnum ] = m_flMax[ barnum ]; } else { float frac = (float)( xpos - rcBar.left ) / (float)( rcBar.right - rcBar.left ); // snap slider to nearest "tick" so that it get drawn in the correct place int curtick = (int)( frac * m_nTicks[ 0 ] + 0.5); m_flCurrent[ barnum ] = m_flMin[ barnum ] + ((float)curtick / (float)m_nTicks[ 0 ]) * (m_flMax[ barnum ] - m_flMin[ barnum ]); } // Send message to parent HWND parent = (HWND)( getParent() ? getParent()->getHandle() : NULL ); if ( parent ) { LPARAM lp; WPARAM wp; wp = MAKEWPARAM( finish ? SB_ENDSCROLL : SB_THUMBPOSITION, barnum ); lp = (long)getHandle(); SendMessage( parent, WM_HSCROLL, wp, lp ); } BoundValue(); redraw(); }
void IGUIScrollBar::HandleMessage(SGUIMessage &Message) { switch (Message.type) { case GUIM_MOUSE_MOTION: { // TODO Gee: Optimizations needed! CPos mouse = m_pHostObject->GetMousePos(); // If bar is being dragged if (m_BarPressed) { SetPosFromMousePos(mouse); UpdatePosBoundaries(); } // check if components are being hovered m_BarHovered = GetBarRect().PointInside(mouse); m_ButtonMinusHovered = HoveringButtonMinus(mouse); m_ButtonPlusHovered = HoveringButtonPlus(mouse); if (!m_ButtonMinusHovered) m_ButtonMinusPressed = false; if (!m_ButtonPlusHovered) m_ButtonPlusPressed = false; break; } case GUIM_MOUSE_PRESS_LEFT: { if (!m_pHostObject) break; CPos mouse = m_pHostObject->GetMousePos(); // if bar is pressed if (GetBarRect().PointInside(mouse)) { m_BarPressed = true; m_BarPressedAtPos = mouse; m_PosWhenPressed = m_Pos; } else // if button-minus is pressed if (m_ButtonMinusHovered) { m_ButtonMinusPressed = true; ScrollMinus(); } else // if button-plus is pressed if (m_ButtonPlusHovered) { m_ButtonPlusPressed = true; ScrollPlus(); } else // Pressing the background of the bar, to scroll // notice the if-sentence alone does not admit that, // it must be after the above if/elses { if (GetOuterRect().PointInside(mouse)) { // Scroll plus or minus a lot, this might change, it doesn't // have to be fancy though. if (mouse.y < GetBarRect().top) ScrollMinusPlenty(); else ScrollPlusPlenty(); // Simulate mouse movement to see if bar now is hovered SGUIMessage msg(GUIM_MOUSE_MOTION); HandleMessage(msg); } } break; } case GUIM_MOUSE_RELEASE_LEFT: { m_ButtonMinusPressed = false; m_ButtonPlusPressed = false; break; } case GUIM_MOUSE_WHEEL_UP: { ScrollMinus(); // Since the scroll was changed, let's simulate a mouse movement // to check if scrollbar now is hovered SGUIMessage msg(GUIM_MOUSE_MOTION); HandleMessage(msg); break; } case GUIM_MOUSE_WHEEL_DOWN: { ScrollPlus(); // Since the scroll was changed, let's simulate a mouse movement // to check if scrollbar now is hovered SGUIMessage msg(GUIM_MOUSE_MOTION); HandleMessage(msg); break; } default: break; } }
void CGUIScrollBarVertical::Draw() { if (!GetStyle()) { LOGWARNING("Attempt to draw scrollbar without a style."); return; } if (GetGUI() && IsVisible()) { CRect outline = GetOuterRect(); // Draw background GetGUI()->DrawSprite(GetStyle()->m_SpriteBackVertical, 0, m_Z+0.1f, CRect(outline.left, outline.top+(GetStyle()->m_UseEdgeButtons?GetStyle()->m_Width:0), outline.right, outline.bottom-(GetStyle()->m_UseEdgeButtons?GetStyle()->m_Width:0)) ); if (GetStyle()->m_UseEdgeButtons) { // Get Appropriate sprites const CGUISpriteInstance* button_top; const CGUISpriteInstance* button_bottom; // figure out what sprite to use for top button if (m_ButtonMinusHovered) { if (m_ButtonMinusPressed) button_top = &GUI<>::FallBackSprite(GetStyle()->m_SpriteButtonTopPressed, GetStyle()->m_SpriteButtonTop); else button_top = &GUI<>::FallBackSprite(GetStyle()->m_SpriteButtonTopOver, GetStyle()->m_SpriteButtonTop); } else button_top = &GetStyle()->m_SpriteButtonTop; // figure out what sprite to use for bottom button if (m_ButtonPlusHovered) { if (m_ButtonPlusPressed) button_bottom = &GUI<>::FallBackSprite(GetStyle()->m_SpriteButtonBottomPressed, GetStyle()->m_SpriteButtonBottom); else button_bottom = &GUI<>::FallBackSprite(GetStyle()->m_SpriteButtonBottomOver, GetStyle()->m_SpriteButtonBottom); } else button_bottom = &GetStyle()->m_SpriteButtonBottom; // Draw top button GetGUI()->DrawSprite(*button_top, 0, m_Z+0.2f, CRect(outline.left, outline.top, outline.right, outline.top+GetStyle()->m_Width) ); // Draw bottom button GetGUI()->DrawSprite(*button_bottom, 0, m_Z+0.2f, CRect(outline.left, outline.bottom-GetStyle()->m_Width, outline.right, outline.bottom) ); } // Draw bar GetGUI()->DrawSprite(GetStyle()->m_SpriteBarVertical, 0, m_Z + 0.2f, GetBarRect()); } }