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CTextBox: ensure paint of text and background only if required

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It's not new, but this involves also other properties,
like color or position...

It's possible that more properties are required, maybe needs to be watched
and evaluation of comparison might require further revisions.
This commit is contained in:
Thilo Graf
2013-10-21 17:54:51 +02:00
parent 9f150435a7
commit adba310c1c
2 changed files with 67 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
src/gui/widget/textbox.cpp
View File

@@ -77,7 +77,7 @@ CTextBox::CTextBox(const char * text, Font* font_text, const int pmode,
initVar();
if(text != NULL)
m_cText = text;
m_cText = m_old_cText = text;
if(font_text != NULL)
m_pcFontText = font_text;
@@ -113,7 +113,7 @@ CTextBox::CTextBox(const char * text)
initVar();
if(text != NULL)
m_cText = *text;
m_cText = m_old_cText = *text;
//TRACE_1("[CTextBox] %s Line %d text: %s\r\n", __FUNCTION__, __LINE__, text);
@@ -149,7 +149,7 @@ void CTextBox::initVar(void)
m_nMaxLineWidth = 0;
m_cText = "";
m_nMode = SCROLL;
m_nMode = m_old_nMode = SCROLL;
m_FontUseDigitHeight = false;
m_pcFontText = g_Font[SNeutrinoSettings::FONT_TYPE_EPG_INFO1];
@@ -164,21 +164,21 @@ void CTextBox::initVar(void)
text_Hborder_width = 8; //border left and right
text_Vborder_width = 8; //border top and buttom
m_cFrame.iX = g_settings.screen_StartX + ((g_settings.screen_EndX - g_settings.screen_StartX - MIN_WINDOW_WIDTH) >>1);
m_cFrame.iWidth = MIN_WINDOW_WIDTH;
m_cFrame.iY = g_settings.screen_StartY + ((g_settings.screen_EndY - g_settings.screen_StartY - MIN_WINDOW_HEIGHT) >>1);
m_cFrame.iHeight = MIN_WINDOW_HEIGHT;
m_cFrame.iX = m_old_x = g_settings.screen_StartX + ((g_settings.screen_EndX - g_settings.screen_StartX - MIN_WINDOW_WIDTH) >>1);
m_cFrame.iWidth = m_old_dx = MIN_WINDOW_WIDTH;
m_cFrame.iY = m_old_y = g_settings.screen_StartY + ((g_settings.screen_EndY - g_settings.screen_StartY - MIN_WINDOW_HEIGHT) >>1);
m_cFrame.iHeight = m_old_dy = MIN_WINDOW_HEIGHT;
m_nMaxHeight = MAX_WINDOW_HEIGHT;
m_nMaxWidth = MAX_WINDOW_WIDTH;
m_nMinHeight = MIN_WINDOW_HEIGHT;
m_nMinWidth = MIN_WINDOW_WIDTH;
m_textBackgroundColor = COL_MENUCONTENT_PLUS_0;
m_textBackgroundColor = m_old_textBackgroundColor = COL_MENUCONTENT_PLUS_0;
m_textColor = COL_MENUCONTENT_TEXT;
m_nPaintBackground = true;
m_nBgRadius = 0;
m_nBgRadiusType = CORNER_ALL;
m_nBgRadius = m_old_nBgRadius = 0;
m_nBgRadiusType = m_old_nBgRadiusType = CORNER_ALL;
m_cLineArray.clear();
@@ -516,25 +516,68 @@ void CTextBox::refreshText(void)
int ay = /*m_cFrameTextRel.iY+*/m_cFrame.iY;
int dx = m_cFrameTextRel.iWidth;
int dy = m_cFrameTextRel.iHeight;
bool has_changed = false;
//save screen
//evaluate comparsion properties
if (m_old_x != ax || m_old_y != ay || m_old_dx != dx || m_old_dy != dy ||
m_old_textBackgroundColor != m_textBackgroundColor ||
m_old_nBgRadius != m_nBgRadius ||m_old_nBgRadiusType != m_nBgRadiusType ||
m_nNrOfPages > 1 ||
m_old_nMode != m_nMode){
has_changed = true;
}
//destroy pixel buffer on changed property values
if (has_changed){
if (m_bgpixbuf){
//TRACE("[CTextBox] %s destroy ol pixel buffer, has changes%d\r\n", __FUNCTION__, __LINE__);
delete[] m_bgpixbuf;
m_bgpixbuf = NULL;
}
}
//save screen only if no paint of background required
if (!m_nPaintBackground){
if (m_bgpixbuf == NULL){
//TRACE("[CTextBox] %s save bg %d\r\n", __FUNCTION__, __LINE__);
m_bgpixbuf= new fb_pixel_t[dx * dy];
frameBuffer->SaveScreen(ax, ay, dx, dy, m_bgpixbuf);
}
}
//Paint Text Background
if (m_nPaintBackground){
if (m_bgpixbuf){
//TRACE("[CTextBox] %s destroy bg %d\r\n", __FUNCTION__, __LINE__);
delete[] m_bgpixbuf;
m_bgpixbuf = NULL;
}
if (has_changed){
//TRACE("[CTextBox] %s paint bg %d\r\n", __FUNCTION__, __LINE__);
frameBuffer->paintBoxRel(ax, ay, dx, dy, m_textBackgroundColor, m_nBgRadius, m_nBgRadiusType);
}
}
else{
if (m_bgpixbuf)
if (m_bgpixbuf){
if (m_old_cText != m_cText || has_changed){
//TRACE("[CTextBox] %s restore bg %d\r\n", __FUNCTION__, __LINE__);
frameBuffer->RestoreScreen(ax, ay, dx, dy, m_bgpixbuf);
}
}
}
//save current comparsion properties
if (has_changed){
//TRACE("[CTextBox] %s set current values %d\r\n", __FUNCTION__, __LINE__);
m_old_x = ax;
m_old_y = ay;
m_old_dx = dx;
m_old_dy = dy;
m_old_textBackgroundColor = m_textBackgroundColor;
m_old_nBgRadius = m_nBgRadius;
m_old_nBgRadiusType = m_nBgRadiusType;
m_old_nMode = m_nMode;
}
if( m_nNrOfLines <= 0)
return;
@@ -571,6 +614,7 @@ void CTextBox::refreshText(void)
m_pcFontText->RenderString(m_cFrame.iX + m_cFrameTextRel.iX + text_Hborder_width + x_center,
y+m_cFrame.iY, m_cFrameTextRel.iWidth, m_cLineArray[i].c_str(),
m_textColor, 0, true); // UTF-8
m_old_cText = m_cText;
y += m_nFontTextHeight;
}
}

5
src/gui/widget/textbox.h
View File

@@ -116,9 +116,12 @@ class CTextBox
int getFontTextHeight();
/* Variables */
std::string m_cText;
std::string m_cText, m_old_cText;
std::vector<std::string> m_cLineArray;
int m_old_x, m_old_y, m_old_dx, m_old_dy, m_old_nBgRadius, m_old_nBgRadiusType, m_old_nMode;
fb_pixel_t m_old_textBackgroundColor;
bool m_showTextFrame;
CBox m_cFrame;