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fix issues with active_img

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This commit is contained in:
David Rose 2009-11-13 18:09:55 +00:00
parent 4a380d4208
commit 6e8cedfcfb
2 changed files with 31 additions and 15 deletions
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30
direct/src/plugin/p3dWinSplashWindow.cxx
View File

@ -687,23 +687,23 @@ paint_window(HDC dc) {
FillRect(bdc, &rect, (HBRUSH)GetStockObject(WHITE_BRUSH));
// Then paint the background image on top of that.
paint_image(bdc, _background_image);
paint_image(bdc, _background_image, false);
// And then, paint the button, if any, on top of *that*.
switch (_drawn_bstate) {
case BS_hidden:
break;
case BS_ready:
paint_image(bdc, _button_ready_image);
paint_image(bdc, _button_ready_image, true);
break;
case BS_rollover:
if (!paint_image(bdc, _button_rollover_image)) {
paint_image(bdc, _button_ready_image);
if (!paint_image(bdc, _button_rollover_image, true)) {
paint_image(bdc, _button_ready_image, true);
}
break;
case BS_click:
if (!paint_image(bdc, _button_click_image)) {
paint_image(bdc, _button_ready_image);
if (!paint_image(bdc, _button_click_image, true)) {
paint_image(bdc, _button_ready_image, true);
}
break;
}
@ -729,7 +729,7 @@ paint_window(HDC dc) {
// is not defined.
////////////////////////////////////////////////////////////////////
bool P3DWinSplashWindow::
paint_image(HDC dc, const WinImageData &image) {
paint_image(HDC dc, const WinImageData &image, bool use_alpha) {
if (image._bitmap == NULL) {
return false;
}
@ -755,9 +755,14 @@ paint_image(HDC dc, const WinImageData &image) {
int p_x = win_cx - image._width / 2;
int p_y = win_cy - image._height / 2;
if (!use_alpha) {
BitBlt(dc, p_x, p_y, image._width, image._height,
mem_dc, 0, 0, SRCCOPY);
} else {
AlphaBlend(dc, p_x, p_y, image._width, image._height,
mem_dc, 0, 0, image._width, image._height,
bf);
}
} else {
// The bitmap is larger than the window; scale it down.
@ -770,10 +775,21 @@ paint_image(HDC dc, const WinImageData &image) {
int p_x = win_cx - sc_width / 2;
int p_y = win_cy - sc_height / 2;
if (!use_alpha) {
StretchBlt(dc, p_x, p_y, sc_width, sc_height,
mem_dc, 0, 0, image._width, image._height, SRCCOPY);
} else {
// For some reason, AlphaBlend has issues when scaling a
// black-and-white image to draw onto the window: it draws the
// image in the last fill color used on the dc, instead of
// black. This only happens when the image consists only of
// black and white, and only when the image is being scaled.
// Weird. But StretchBlt, above, doesn't have this problem.
AlphaBlend(dc, p_x, p_y, sc_width, sc_height,
mem_dc, 0, 0, image._width, image._height,
bf);
}
}
SelectObject(mem_dc, NULL);
DeleteDC(mem_dc);

2
direct/src/plugin/p3dWinSplashWindow.h
View File

@ -65,7 +65,7 @@ private:
void close_window();
void paint_window(HDC dc);
bool paint_image(HDC dc, const WinImageData &image);
bool paint_image(HDC dc, const WinImageData &image, bool use_alpha);
void paint_progress_bar(HDC dc);
LONG window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
static LONG WINAPI st_window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);