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Platform/Win32/Win32Display: implement the new setIcon() with pixel array.

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This commit is contained in:
Henrik Hautakoski 2020-11-03 11:26:59 +01:00
parent 60653509fa
commit 2be3c66a2d
2 changed files with 62 additions and 11 deletions
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70
source/Platform/Win32/Win32Display.cpp
View file

@ -127,21 +127,71 @@ void Win32Display::showCursor(bool value)
::SetCursor(m_cursor);
}
void Win32Display::setIcon(const std::string& icon)
void Win32Display::setIcon(unsigned int width, unsigned int height, const uint8_t *pixels)
{
HICON hIcon = (HICON) ::LoadImage(0, icon.c_str(), IMAGE_ICON,
0, 0, LR_DEFAULTSIZE | LR_LOADFROMFILE);
::HDC hdc;
::ICONINFO ii;
::BITMAPV5HEADER bi;
::HBITMAP bmp_color, bmp_mask;
unsigned char *bmp_data = NULL;
if (hIcon) {
::ZeroMemory(&bi, sizeof(bi));
bi.bV5Size = sizeof(bi);
bi.bV5Width = width;
bi.bV5Height = height;
bi.bV5Planes = 1;
bi.bV5BitCount = 32;
bi.bV5Compression = BI_RGB;
bi.bV5CSType = LCS_WINDOWS_COLOR_SPACE;
bi.bV5Intent = LCS_GM_IMAGES;
if (m_icon) {
DestroyIcon(m_icon);
}
m_icon = hIcon;
hdc = ::GetDC(NULL);
bmp_color = ::CreateDIBSection(hdc, reinterpret_cast<BITMAPINFO*>(&bi),
DIB_RGB_COLORS, (void **) &bmp_data, NULL, 0);
::ReleaseDC(NULL, hdc);
::SendMessage(m_handle, WM_SETICON, ICON_SMALL, (LPARAM) hIcon);
::SendMessage(m_handle, WM_SETICON, ICON_BIG, (LPARAM) hIcon);
if (!bmp_color) {
Log::error("Win32Display::setIcon() - Failed to create RGBA bitmap");
return;
}
bmp_mask = CreateBitmap(width, height, 1, 1, NULL);
if (!bmp_mask) {
Log::error("Win32Display::setIcon() - Failed to create mask bitmap");
::DeleteObject(bmp_color);
return;
}
// pixels are always RGBA, WinApi wants BGRA
for(int i = 0; i < width * height; i++) {
bmp_data[i * 4 + 0] = pixels[i * 4 + 2]; // R <- B
bmp_data[i * 4 + 1] = pixels[i * 4 + 1]; // G <- G
bmp_data[i * 4 + 2] = pixels[i * 4 + 0]; // B <- R
bmp_data[i * 4 + 3] = pixels[i * 4 + 3]; // A <- A
}
::ZeroMemory(&ii, sizeof(ii));
ii.fIcon = TRUE;
ii.xHotspot = 0;
ii.yHotspot = 0;
ii.hbmColor = bmp_color;
ii.hbmMask = bmp_mask;
if (m_icon) {
::DestroyIcon(m_icon);
}
m_icon = CreateIconIndirect(&ii);
if (m_icon) {
::SendMessage(m_handle, WM_SETICON, ICON_SMALL, (LPARAM) m_icon);
::SendMessage(m_handle, WM_SETICON, ICON_BIG, (LPARAM) m_icon);
} else {
Log::error("Win32Display::setIcon() - Failed to create icon");
}
::DeleteObject(bmp_color);
::DeleteObject(bmp_mask);
}
void Win32Display::registerClass()

3
source/Platform/Win32/Win32Display.h
View file

@ -4,6 +4,7 @@
#include "Win32GLContext.h"
#include <Platform/PlatformDisplay.h>
#include <cstdint>
#include <Windows.h>
namespace sp {
@ -30,7 +31,7 @@ public :
virtual void setCaption(const std::string& caption);
virtual void setIcon(const std::string& icon);
virtual void setIcon(unsigned int width, unsigned int height, const uint8_t *pixels);
virtual void showCursor(bool value);