scratchfoundation/bgfx
1
0
Fork 0
mirror of https://github.com/scratchfoundation/bgfx.git synced 2024-11-28 18:45:54 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

stable window resizing

Browse source 
Updated frame calculation and position anchoring in WM_SIZING for
stability.
This commit is contained in:
Kevin Lin 2013-02-27 01:25:23 -08:00
parent 316053bd9b
commit dcc2bf250c
1 changed files with 27 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

45
examples/common/entry_windows.cpp
View file

@ -287,15 +287,11 @@ namespace entry
case WM_SIZING:
{
RECT clientRect;
GetClientRect(_hwnd, &clientRect);
uint32_t width = clientRect.right-clientRect.left;
uint32_t height = clientRect.bottom-clientRect.top;
RECT& rect = *(RECT*)_lparam;
uint32_t frameWidth = rect.right-rect.left - width;
uint32_t frameHeight = rect.bottom-rect.top - height;
uint32_t width = rect.right - rect.left - m_frameWidth;
uint32_t height = rect.bottom - rect.top - m_frameHeight;
//Recalculate size according to aspect ratio
switch (_wparam)
{
case WMSZ_LEFT:
@ -309,6 +305,9 @@ namespace entry
default:
{
unsigned int oldWidth = width;
unsigned int oldHeight = height;
float aspectRatio = m_aspectRatio;
height = bx::uint32_max(DEFAULT_HEIGHT/4, height);
width = uint32_t(float(height)*aspectRatio);
@ -316,18 +315,22 @@ namespace entry
break;
}
rect.right = rect.left + width + frameWidth;
rect.bottom = rect.top + height + frameHeight;
SetWindowPos(_hwnd
, HWND_TOP
, rect.left
, rect.top
, (rect.right-rect.left)
, (rect.bottom-rect.top)
, SWP_SHOWWINDOW
);
//Recalculate position using different anchor points
switch(_wparam)
{
case WMSZ_LEFT:
case WMSZ_TOPLEFT:
case WMSZ_BOTTOMLEFT:
rect.left = rect.right - width - m_frameWidth;
rect.bottom = rect.top + height + m_frameHeight;
break;
default:
rect.right = rect.left + width + m_frameWidth;
rect.bottom = rect.top + height + m_frameHeight;
break;
}
m_eventQueue.postSizeEvent(m_width, m_height);
}
return 0;
@ -468,7 +471,11 @@ namespace entry
}
SetWindowLong(m_hwnd, GWL_STYLE, style);
uint32_t prewidth = newrect.right - newrect.left;
uint32_t preheight = newrect.bottom - newrect.top;
AdjustWindowRect(&newrect, style, FALSE);
m_frameWidth = (newrect.right - newrect.left) - prewidth;
m_frameHeight = (newrect.bottom - newrect.top) - preheight;
UpdateWindow(m_hwnd);
if (rect.left == -32000
@ -573,6 +580,8 @@ namespace entry
uint32_t m_height;
uint32_t m_oldWidth;
uint32_t m_oldHeight;
uint32_t m_frameWidth;
uint32_t m_frameHeight;
float m_aspectRatio;
int32_t m_mx;