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Implement taking smallmap screenshots.

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This is largely based on this patch:
http://www.tt-forums.net/viewtopic.php?p=849533#p849533
with the following changes:
* this uses a button in the smallmap window instead of a console command
* screenshot now uses zoom level and mode of smallmap window
This commit is contained in:
Jonathan G Rennison
2015-08-04 01:26:32 +01:00
parent 163c30570b
commit 948b4e1d5e
6 changed files with 128 additions and 9 deletions
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52
src/screenshot.cpp
View File

@@ -25,6 +25,7 @@
#include "window_func.h"
#include "tile_map.h"
#include "landscape.h"
#include "smallmap_gui.h"
#include "table/strings.h"
@@ -810,6 +811,20 @@ bool MakeHeightmapScreenshot(const char *filename)
return sf->proc(filename, HeightmapCallback, NULL, MapSizeX(), MapSizeY(), 8, palette);
}
/**
* Show a a success or failure message indicating the result of a screenshot action
* @param ret whether the screenshot action was successful
*/
static void ShowScreenshotResultMessage(bool ret)
{
if (ret) {
SetDParamStr(0, _screenshot_name);
ShowErrorMessage(STR_MESSAGE_SCREENSHOT_SUCCESSFULLY, INVALID_STRING_ID, WL_WARNING);
} else {
ShowErrorMessage(STR_ERROR_SCREENSHOT_FAILED, INVALID_STRING_ID, WL_ERROR);
}
}
/**
* Make an actual screenshot.
* @param t the type of screenshot to make.
@@ -856,12 +871,37 @@ bool MakeScreenshot(ScreenshotType t, const char *name)
NOT_REACHED();
}
if (ret) {
SetDParamStr(0, _screenshot_name);
ShowErrorMessage(STR_MESSAGE_SCREENSHOT_SUCCESSFULLY, INVALID_STRING_ID, WL_WARNING);
} else {
ShowErrorMessage(STR_ERROR_SCREENSHOT_FAILED, INVALID_STRING_ID, WL_ERROR);
}
ShowScreenshotResultMessage(ret);
return ret;
}
/**
* Callback for generating a smallmap screenshot.
* @param userdata SmallMapWindow window pointer
* @param buf Videobuffer with same bitdepth as current blitter
* @param y First line to render
* @param pitch Pitch of the videobuffer
* @param n Number of lines to render
*/
static void SmallMapCallback(void *userdata, void *buf, uint y, uint pitch, uint n)
{
SmallMapWindow *window = static_cast<SmallMapWindow *>(userdata);
window->ScreenshotCallbackHandler(buf, y, pitch, n);
}
/**
* Make a screenshot of the smallmap
* @param width the width of the screenshot
* @param height the height of the screenshot
* @param window a pointer to the smallmap window to use, the current mode and zoom status of the window is used for the screenshot
* @return true iff the screenshot was made successfully
*/
bool MakeSmallMapScreenshot(unsigned int width, unsigned int height, SmallMapWindow *window)
{
_screenshot_name[0] = '\0';
const ScreenshotFormat *sf = _screenshot_formats + _cur_screenshot_format;
bool ret = sf->proc(MakeScreenshotName(SCREENSHOT_NAME, sf->extension), SmallMapCallback, window, width, height, BlitterFactory::GetCurrentBlitter()->GetScreenDepth(), _cur_palette.palette);
ShowScreenshotResultMessage(ret);
return ret;
}