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add image resizing at the interface

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This commit is contained in:
Edouard DUPIN 2012-08-22 18:20:04 +02:00
parent 6f05d8dc71
commit b000e558d0
2 changed files with 68 additions and 3 deletions
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65
draw/Image.cpp
View File

@ -120,6 +120,71 @@ draw::Image::~Image(void)
}
}
void draw::Image::Resize(Vector2D<int32_t> size)
{
if (NULL != m_renderArea) {
delete(m_renderArea);
m_renderArea = NULL;
}
if (NULL != m_renderBase) {
delete(m_renderBase);
m_renderBase = NULL;
}
if (NULL != m_pixFrame) {
delete(m_pixFrame);
m_pixFrame = NULL;
}
if (NULL != m_renderingBuffer) {
delete(m_renderingBuffer);
m_renderingBuffer = NULL;
}
m_size = size;
// basic element :
draw::Color tmpBg(0,0,0,0);
// preallocate data with a basic bg elements :
m_data.ReSize(m_size.x*m_size.y, tmpBg);
if (m_size.x*m_size.y > m_data.Size()) {
DRAW_ERROR("Allocation of data buffer in error");
return;
}
// Allocate the AGG renderer system :
m_renderingBuffer = new agg::rendering_buffer((uint8_t*)&m_data[0], m_size.x, m_size.y, m_size.x*sizeof(draw::Color));
if (NULL == m_renderingBuffer) {
DRAW_ERROR("Allocation of the m_renderingBuffer for SVG drawing error");
return;
}
m_pixFrame = new agg::pixfmt_rgba32(*m_renderingBuffer);
if (NULL == m_pixFrame) {
DRAW_ERROR("Allocation of the m_pixFrame for Image system error");
delete(m_renderingBuffer);
m_renderingBuffer = NULL;
return;
}
m_renderBase = new rendererBase_t(*m_pixFrame);
if (NULL == m_renderBase) {
DRAW_ERROR("Allocation of the m_renderBase for Image system error");
delete(m_pixFrame);
m_pixFrame = NULL;
delete(m_renderingBuffer);
m_renderingBuffer = NULL;
return;
}
m_renderArea = new rendererSolid_t(*m_renderBase);
if (NULL == m_renderArea) {
DRAW_ERROR("Allocation of the m_renderArea for Image system error");
delete(m_renderArea);
m_renderArea = NULL;
delete(m_pixFrame);
m_pixFrame = NULL;
delete(m_renderingBuffer);
m_renderingBuffer = NULL;
return;
}
}
void draw::Image::Begin(void)
{

6
draw/Image.h
View File

@ -22,8 +22,8 @@
*******************************************************************************
*/
#ifndef __EWOL_IMAGE_H__
#define __EWOL_IMAGE_H__
#ifndef __DRAW_IMAGE_H__
#define __DRAW_IMAGE_H__
#include <etk/Types.h>
#include <etk/Vector.h>
@ -80,7 +80,7 @@ namespace draw
// -- basic tools :
// -----------------------------------------------
public :
//void Resize(Vector2D<int32_t> size);
void Resize(Vector2D<int32_t> size);
//void Resize(Vector2D<int32_t> startPos, Vector2D<int32_t> size);
Vector2D<int32_t> GetSize(void) const