447 lines
10 KiB
C
447 lines
10 KiB
C
/**
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* RdTk: Remote Desktop Toolkit
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*
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* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <rdtk/config.h>
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#include "rdtk_resources.h"
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#include "rdtk_nine_patch.h"
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static int rdtk_image_copy_alpha_blend(uint8_t* pDstData, int nDstStep, int nXDst, int nYDst,
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int nWidth, int nHeight, uint8_t* pSrcData, int nSrcStep,
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int nXSrc, int nYSrc)
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{
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int x, y;
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uint8_t A, R, G, B;
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for (y = 0; y < nHeight; y++)
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{
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const uint8_t* pSrcPixel = &pSrcData[((nYSrc + y) * nSrcStep) + (nXSrc * 4)];
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uint8_t* pDstPixel = &pDstData[((nYDst + y) * nDstStep) + (nXDst * 4)];
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for (x = 0; x < nWidth; x++)
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{
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B = pSrcPixel[0];
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G = pSrcPixel[1];
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R = pSrcPixel[2];
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A = pSrcPixel[3];
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pSrcPixel += 4;
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if (A == 255)
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{
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pDstPixel[0] = B;
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pDstPixel[1] = G;
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pDstPixel[2] = R;
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}
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else
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{
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R = (R * A) / 255;
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G = (G * A) / 255;
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B = (B * A) / 255;
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pDstPixel[0] = B + (pDstPixel[0] * (255 - A) + (255 / 2)) / 255;
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pDstPixel[1] = G + (pDstPixel[1] * (255 - A) + (255 / 2)) / 255;
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pDstPixel[2] = R + (pDstPixel[2] * (255 - A) + (255 / 2)) / 255;
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}
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pDstPixel[3] = 0xFF;
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pDstPixel += 4;
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}
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}
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return 1;
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}
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int rdtk_nine_patch_draw(rdtkSurface* surface, int nXDst, int nYDst, int nWidth, int nHeight,
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rdtkNinePatch* ninePatch)
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{
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int x, y;
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int width;
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int height;
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int nXSrc;
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int nYSrc;
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int nSrcStep;
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int nDstStep;
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uint8_t* pSrcData;
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uint8_t* pDstData;
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int scaleWidth;
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if (nWidth < ninePatch->width)
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nWidth = ninePatch->width;
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if (nHeight < ninePatch->height)
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nHeight = ninePatch->height;
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WINPR_UNUSED(nHeight);
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scaleWidth = nWidth - (ninePatch->width - ninePatch->scaleWidth);
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nSrcStep = ninePatch->scanline;
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pSrcData = ninePatch->data;
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pDstData = surface->data;
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nDstStep = surface->scanline;
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/* top */
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x = 0;
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y = 0;
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/* top left */
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nXSrc = 0;
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nYSrc = 0;
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width = ninePatch->scaleLeft;
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height = ninePatch->scaleTop;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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x += width;
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/* top middle (scalable) */
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nXSrc = ninePatch->scaleLeft;
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nYSrc = 0;
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height = ninePatch->scaleTop;
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while (x < (nXSrc + scaleWidth))
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{
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width = (nXSrc + scaleWidth) - x;
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if (width > ninePatch->scaleWidth)
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width = ninePatch->scaleWidth;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height,
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pSrcData, nSrcStep, nXSrc, nYSrc);
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x += width;
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}
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/* top right */
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nXSrc = ninePatch->scaleRight;
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nYSrc = 0;
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width = ninePatch->width - ninePatch->scaleRight;
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height = ninePatch->scaleTop;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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/* middle */
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x = 0;
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y = ninePatch->scaleTop;
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/* middle left */
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nXSrc = 0;
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nYSrc = ninePatch->scaleTop;
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width = ninePatch->scaleLeft;
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height = ninePatch->scaleHeight;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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x += width;
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/* middle (scalable) */
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nXSrc = ninePatch->scaleLeft;
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nYSrc = ninePatch->scaleTop;
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height = ninePatch->scaleHeight;
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while (x < (nXSrc + scaleWidth))
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{
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width = (nXSrc + scaleWidth) - x;
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if (width > ninePatch->scaleWidth)
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width = ninePatch->scaleWidth;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height,
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pSrcData, nSrcStep, nXSrc, nYSrc);
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x += width;
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}
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/* middle right */
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nXSrc = ninePatch->scaleRight;
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nYSrc = ninePatch->scaleTop;
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width = ninePatch->width - ninePatch->scaleRight;
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height = ninePatch->scaleHeight;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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/* bottom */
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x = 0;
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y = ninePatch->scaleBottom;
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/* bottom left */
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nXSrc = 0;
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nYSrc = ninePatch->scaleBottom;
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width = ninePatch->scaleLeft;
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height = ninePatch->height - ninePatch->scaleBottom;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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x += width;
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/* bottom middle (scalable) */
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nXSrc = ninePatch->scaleLeft;
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nYSrc = ninePatch->scaleBottom;
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height = ninePatch->height - ninePatch->scaleBottom;
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while (x < (nXSrc + scaleWidth))
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{
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width = (nXSrc + scaleWidth) - x;
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if (width > ninePatch->scaleWidth)
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width = ninePatch->scaleWidth;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height,
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pSrcData, nSrcStep, nXSrc, nYSrc);
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x += width;
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}
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/* bottom right */
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nXSrc = ninePatch->scaleRight;
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nYSrc = ninePatch->scaleBottom;
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width = ninePatch->width - ninePatch->scaleRight;
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height = ninePatch->height - ninePatch->scaleBottom;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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return 1;
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}
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int rdtk_nine_patch_set_image(rdtkNinePatch* ninePatch, wImage* image)
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{
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int x, y;
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uint8_t* data;
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int beg, end;
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int scanline;
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uint32_t* pixel;
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int width, height;
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ninePatch->image = image;
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width = image->width;
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height = image->height;
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scanline = image->scanline;
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data = image->data;
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/* parse scalable area */
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beg = end = -1;
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pixel = (uint32_t*)&data[4]; /* (1, 0) */
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for (x = 1; x < width - 1; x++)
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{
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if (beg < 0)
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{
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if (*pixel)
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{
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beg = x;
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}
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}
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else if (end < 0)
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{
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if (!(*pixel))
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{
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end = x;
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break;
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}
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}
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pixel++;
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}
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ninePatch->scaleLeft = beg - 1;
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ninePatch->scaleRight = end - 1;
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ninePatch->scaleWidth = ninePatch->scaleRight - ninePatch->scaleLeft;
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beg = end = -1;
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pixel = (uint32_t*)&data[scanline]; /* (0, 1) */
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for (y = 1; y < height - 1; y++)
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{
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if (beg < 0)
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{
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if (*pixel)
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{
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beg = y;
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}
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}
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else if (end < 0)
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{
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if (!(*pixel))
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{
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end = y;
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break;
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}
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}
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pixel = (uint32_t*)&((uint8_t*)pixel)[scanline];
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}
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ninePatch->scaleTop = beg - 1;
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ninePatch->scaleBottom = end - 1;
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ninePatch->scaleHeight = ninePatch->scaleBottom - ninePatch->scaleTop;
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/* parse fillable area */
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beg = end = -1;
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pixel = (uint32_t*)&data[((height - 1) * scanline) + 4]; /* (1, height - 1) */
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for (x = 1; x < width - 1; x++)
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{
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if (beg < 0)
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{
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if (*pixel)
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{
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beg = x;
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}
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}
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else if (end < 0)
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{
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if (!(*pixel))
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{
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end = x;
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break;
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}
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}
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pixel++;
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}
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ninePatch->fillLeft = beg - 1;
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ninePatch->fillRight = end - 1;
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ninePatch->fillWidth = ninePatch->fillRight - ninePatch->fillLeft;
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beg = end = -1;
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pixel = (uint32_t*)&data[((width - 1) * 4) + scanline]; /* (width - 1, 1) */
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for (y = 1; y < height - 1; y++)
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{
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if (beg < 0)
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{
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if (*pixel)
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{
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beg = y;
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}
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}
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else if (end < 0)
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{
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if (!(*pixel))
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{
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end = y;
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break;
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}
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}
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pixel = (uint32_t*)&((uint8_t*)pixel)[scanline];
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}
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ninePatch->fillTop = beg - 1;
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ninePatch->fillBottom = end - 1;
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ninePatch->fillHeight = ninePatch->fillBottom - ninePatch->fillTop;
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/* cut out borders from image */
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ninePatch->width = width - 2;
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ninePatch->height = height - 2;
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ninePatch->data = &data[scanline + 4]; /* (1, 1) */
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ninePatch->scanline = scanline;
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#if 0
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printf("width: %d height: %d\n", ninePatch->width, ninePatch->height);
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printf("scale: left: %d right: %d top: %d bottom: %d\n",
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ninePatch->scaleLeft, ninePatch->scaleRight,
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ninePatch->scaleTop, ninePatch->scaleBottom);
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printf("fill: left: %d right: %d top: %d bottom: %d\n",
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ninePatch->fillLeft, ninePatch->fillRight,
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ninePatch->fillTop, ninePatch->fillBottom);
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#endif
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return 1;
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}
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rdtkNinePatch* rdtk_nine_patch_new(rdtkEngine* engine)
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{
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rdtkNinePatch* ninePatch;
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ninePatch = (rdtkNinePatch*)calloc(1, sizeof(rdtkNinePatch));
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if (!ninePatch)
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return NULL;
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ninePatch->engine = engine;
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return ninePatch;
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}
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void rdtk_nine_patch_free(rdtkNinePatch* ninePatch)
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{
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if (!ninePatch)
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return;
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winpr_image_free(ninePatch->image, TRUE);
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free(ninePatch);
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}
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int rdtk_nine_patch_engine_init(rdtkEngine* engine)
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{
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int status;
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wImage* image = NULL;
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rdtkNinePatch* ninePatch;
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if (!engine->button9patch)
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{
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SSIZE_T size;
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const uint8_t* data;
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status = -1;
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size = rdtk_get_embedded_resource_file("btn_default_normal.9.png", &data);
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if (size > 0)
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{
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image = winpr_image_new();
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if (image)
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status = winpr_image_read_buffer(image, data, (size_t)size);
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}
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if (status > 0)
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{
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ninePatch = engine->button9patch = rdtk_nine_patch_new(engine);
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if (ninePatch)
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rdtk_nine_patch_set_image(ninePatch, image);
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else
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winpr_image_free(image, TRUE);
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}
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else
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winpr_image_free(image, TRUE);
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}
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if (!engine->textField9patch)
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{
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SSIZE_T size;
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const uint8_t* data;
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status = -1;
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size = rdtk_get_embedded_resource_file("textfield_default.9.png", &data);
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image = NULL;
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if (size > 0)
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{
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image = winpr_image_new();
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if (image)
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status = winpr_image_read_buffer(image, data, (size_t)size);
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}
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if (status > 0)
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{
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ninePatch = engine->textField9patch = rdtk_nine_patch_new(engine);
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if (ninePatch)
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rdtk_nine_patch_set_image(ninePatch, image);
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else
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winpr_image_free(image, TRUE);
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}
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else
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winpr_image_free(image, TRUE);
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}
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return 1;
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}
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int rdtk_nine_patch_engine_uninit(rdtkEngine* engine)
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{
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if (engine->button9patch)
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{
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rdtk_nine_patch_free(engine->button9patch);
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engine->button9patch = NULL;
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}
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if (engine->textField9patch)
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{
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rdtk_nine_patch_free(engine->textField9patch);
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engine->textField9patch = NULL;
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}
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return 1;
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}
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