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CTextBox: ensure save screen only if dimensions are valid

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0 values are critical
This commit is contained in:
Thilo Graf
2015-04-13 10:37:45 +02:00
committed by svenhoefer
parent cd53fae2c6
commit 87cbb564a3
1 changed files with 4 additions and 2 deletions
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2
src/gui/widget/textbox.cpp
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@@ -579,10 +579,12 @@ void CTextBox::refreshText(void)
if (!m_nPaintBackground && m_SaveScreen) { if (!m_nPaintBackground && m_SaveScreen) {
if (m_bgpixbuf == NULL){ if (m_bgpixbuf == NULL){
//TRACE("[CTextBox] %s save bg %d\r\n", __FUNCTION__, __LINE__); //TRACE("[CTextBox] %s save bg %d\r\n", __FUNCTION__, __LINE__);
if ((dx * dy) >0){
m_bgpixbuf= new fb_pixel_t[dx * dy]; m_bgpixbuf= new fb_pixel_t[dx * dy];
frameBuffer->SaveScreen(ax, ay, dx, dy, m_bgpixbuf); frameBuffer->SaveScreen(ax, ay, dx, dy, m_bgpixbuf);
} }
} }
}
//Paint Text Background //Paint Text Background
bool allow_paint_bg = (m_old_cText != m_cText || has_changed || m_has_scrolled); bool allow_paint_bg = (m_old_cText != m_cText || has_changed || m_has_scrolled);